xref: /llvm-project/clang/unittests/Format/ConfigParseTest.cpp (revision d989c2410eb883f464c3efa472ed026dc5fd9f88)
1 //===- unittest/Format/ConfigParseTest.cpp - Config parsing unit tests ----===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "clang/Format/Format.h"
10 
11 #include "llvm/Support/VirtualFileSystem.h"
12 #include "gtest/gtest.h"
13 
14 namespace clang {
15 namespace format {
16 namespace {
17 
18 void dropDiagnosticHandler(const llvm::SMDiagnostic &, void *) {}
19 FormatStyle getGoogleStyle() { return getGoogleStyle(FormatStyle::LK_Cpp); }
20 
21 #define EXPECT_ALL_STYLES_EQUAL(Styles)                                        \
22   for (size_t i = 1; i < Styles.size(); ++i)                                   \
23   EXPECT_EQ(Styles[0], Styles[i])                                              \
24       << "Style #" << i << " of " << Styles.size() << " differs from Style #0"
25 
26 TEST(ConfigParseTest, GetsPredefinedStyleByName) {
27   SmallVector<FormatStyle, 3> Styles;
28   Styles.resize(3);
29 
30   Styles[0] = getLLVMStyle();
31   EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1]));
32   EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2]));
33   EXPECT_ALL_STYLES_EQUAL(Styles);
34 
35   Styles[0] = getGoogleStyle();
36   EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1]));
37   EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2]));
38   EXPECT_ALL_STYLES_EQUAL(Styles);
39 
40   Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript);
41   EXPECT_TRUE(
42       getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1]));
43   EXPECT_TRUE(
44       getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2]));
45   EXPECT_ALL_STYLES_EQUAL(Styles);
46 
47   Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp);
48   EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1]));
49   EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2]));
50   EXPECT_ALL_STYLES_EQUAL(Styles);
51 
52   Styles[0] = getMozillaStyle();
53   EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1]));
54   EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2]));
55   EXPECT_ALL_STYLES_EQUAL(Styles);
56 
57   Styles[0] = getWebKitStyle();
58   EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1]));
59   EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2]));
60   EXPECT_ALL_STYLES_EQUAL(Styles);
61 
62   Styles[0] = getGNUStyle();
63   EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1]));
64   EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2]));
65   EXPECT_ALL_STYLES_EQUAL(Styles);
66 
67   Styles[0] = getClangFormatStyle();
68   EXPECT_TRUE(
69       getPredefinedStyle("clang-format", FormatStyle::LK_Cpp, &Styles[1]));
70   EXPECT_TRUE(
71       getPredefinedStyle("Clang-format", FormatStyle::LK_Cpp, &Styles[2]));
72   EXPECT_ALL_STYLES_EQUAL(Styles);
73 
74   EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0]));
75 }
76 
77 TEST(ConfigParseTest, GetsCorrectBasedOnStyle) {
78   SmallVector<FormatStyle, 8> Styles;
79   Styles.resize(2);
80 
81   Styles[0] = getGoogleStyle();
82   Styles[1] = getLLVMStyle();
83   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value());
84   EXPECT_ALL_STYLES_EQUAL(Styles);
85 
86   Styles.resize(5);
87   Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript);
88   Styles[1] = getLLVMStyle();
89   Styles[1].Language = FormatStyle::LK_JavaScript;
90   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value());
91 
92   Styles[2] = getLLVMStyle();
93   Styles[2].Language = FormatStyle::LK_JavaScript;
94   EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n"
95                                   "BasedOnStyle: Google",
96                                   &Styles[2])
97                    .value());
98 
99   Styles[3] = getLLVMStyle();
100   Styles[3].Language = FormatStyle::LK_JavaScript;
101   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n"
102                                   "Language: JavaScript",
103                                   &Styles[3])
104                    .value());
105 
106   Styles[4] = getLLVMStyle();
107   Styles[4].Language = FormatStyle::LK_JavaScript;
108   EXPECT_EQ(0, parseConfiguration("---\n"
109                                   "BasedOnStyle: LLVM\n"
110                                   "IndentWidth: 123\n"
111                                   "---\n"
112                                   "BasedOnStyle: Google\n"
113                                   "Language: JavaScript",
114                                   &Styles[4])
115                    .value());
116   EXPECT_ALL_STYLES_EQUAL(Styles);
117 }
118 
119 #define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME)                             \
120   Style.FIELD = false;                                                         \
121   EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value());      \
122   EXPECT_TRUE(Style.FIELD);                                                    \
123   EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value());     \
124   EXPECT_FALSE(Style.FIELD)
125 
126 #define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD)
127 
128 #define CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, CONFIG_NAME)              \
129   Style.STRUCT.FIELD = false;                                                  \
130   EXPECT_EQ(0,                                                                 \
131             parseConfiguration(#STRUCT ":\n  " CONFIG_NAME ": true", &Style)   \
132                 .value());                                                     \
133   EXPECT_TRUE(Style.STRUCT.FIELD);                                             \
134   EXPECT_EQ(0,                                                                 \
135             parseConfiguration(#STRUCT ":\n  " CONFIG_NAME ": false", &Style)  \
136                 .value());                                                     \
137   EXPECT_FALSE(Style.STRUCT.FIELD)
138 
139 #define CHECK_PARSE_NESTED_BOOL(STRUCT, FIELD)                                 \
140   CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, #FIELD)
141 
142 #define CHECK_PARSE(TEXT, FIELD, VALUE)                                        \
143   EXPECT_NE(VALUE, Style.FIELD) << "Initial value already the same!";          \
144   EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value());                      \
145   EXPECT_EQ(VALUE, Style.FIELD) << "Unexpected value after parsing!"
146 
147 #define CHECK_PARSE_NESTED_VALUE(TEXT, STRUCT, FIELD, VALUE)                   \
148   EXPECT_NE(VALUE, Style.STRUCT.FIELD) << "Initial value already the same!";   \
149   EXPECT_EQ(0, parseConfiguration(#STRUCT ":\n  " TEXT, &Style).value());      \
150   EXPECT_EQ(VALUE, Style.STRUCT.FIELD) << "Unexpected value after parsing!"
151 
152 TEST(ConfigParseTest, ParsesConfigurationBools) {
153   FormatStyle Style = {};
154   Style.Language = FormatStyle::LK_Cpp;
155   CHECK_PARSE_BOOL(AllowAllArgumentsOnNextLine);
156   CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine);
157   CHECK_PARSE_BOOL(AllowShortCaseExpressionOnASingleLine);
158   CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine);
159   CHECK_PARSE_BOOL(AllowShortCompoundRequirementOnASingleLine);
160   CHECK_PARSE_BOOL(AllowShortEnumsOnASingleLine);
161   CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine);
162   CHECK_PARSE_BOOL(BinPackArguments);
163   CHECK_PARSE_BOOL(BreakAdjacentStringLiterals);
164   CHECK_PARSE_BOOL(BreakAfterJavaFieldAnnotations);
165   CHECK_PARSE_BOOL(BreakBeforeTernaryOperators);
166   CHECK_PARSE_BOOL(BreakStringLiterals);
167   CHECK_PARSE_BOOL(CompactNamespaces);
168   CHECK_PARSE_BOOL(DerivePointerAlignment);
169   CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding");
170   CHECK_PARSE_BOOL(DisableFormat);
171   CHECK_PARSE_BOOL(IndentAccessModifiers);
172   CHECK_PARSE_BOOL(IndentCaseLabels);
173   CHECK_PARSE_BOOL(IndentCaseBlocks);
174   CHECK_PARSE_BOOL(IndentGotoLabels);
175   CHECK_PARSE_BOOL_FIELD(IndentRequiresClause, "IndentRequires");
176   CHECK_PARSE_BOOL(IndentRequiresClause);
177   CHECK_PARSE_BOOL(IndentWrappedFunctionNames);
178   CHECK_PARSE_BOOL(InsertBraces);
179   CHECK_PARSE_BOOL(InsertNewlineAtEOF);
180   CHECK_PARSE_BOOL_FIELD(KeepEmptyLines.AtEndOfFile, "KeepEmptyLinesAtEOF");
181   CHECK_PARSE_BOOL_FIELD(KeepEmptyLines.AtStartOfBlock,
182                          "KeepEmptyLinesAtTheStartOfBlocks");
183   CHECK_PARSE_BOOL(ObjCSpaceAfterProperty);
184   CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList);
185   CHECK_PARSE_BOOL(Cpp11BracedListStyle);
186   CHECK_PARSE_BOOL(RemoveBracesLLVM);
187   CHECK_PARSE_BOOL(RemoveEmptyLinesInUnwrappedLines);
188   CHECK_PARSE_BOOL(RemoveSemicolon);
189   CHECK_PARSE_BOOL(SkipMacroDefinitionBody);
190   CHECK_PARSE_BOOL(SpacesInSquareBrackets);
191   CHECK_PARSE_BOOL(SpaceInEmptyBlock);
192   CHECK_PARSE_BOOL(SpacesInContainerLiterals);
193   CHECK_PARSE_BOOL(SpaceAfterCStyleCast);
194   CHECK_PARSE_BOOL(SpaceAfterTemplateKeyword);
195   CHECK_PARSE_BOOL(SpaceAfterLogicalNot);
196   CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators);
197   CHECK_PARSE_BOOL(SpaceBeforeCaseColon);
198   CHECK_PARSE_BOOL(SpaceBeforeCpp11BracedList);
199   CHECK_PARSE_BOOL(SpaceBeforeCtorInitializerColon);
200   CHECK_PARSE_BOOL(SpaceBeforeInheritanceColon);
201   CHECK_PARSE_BOOL(SpaceBeforeJsonColon);
202   CHECK_PARSE_BOOL(SpaceBeforeRangeBasedForLoopColon);
203   CHECK_PARSE_BOOL(SpaceBeforeSquareBrackets);
204   CHECK_PARSE_BOOL(VerilogBreakBetweenInstancePorts);
205 
206   CHECK_PARSE_NESTED_BOOL(AlignConsecutiveShortCaseStatements, Enabled);
207   CHECK_PARSE_NESTED_BOOL(AlignConsecutiveShortCaseStatements,
208                           AcrossEmptyLines);
209   CHECK_PARSE_NESTED_BOOL(AlignConsecutiveShortCaseStatements, AcrossComments);
210   CHECK_PARSE_NESTED_BOOL(AlignConsecutiveShortCaseStatements, AlignCaseArrows);
211   CHECK_PARSE_NESTED_BOOL(AlignConsecutiveShortCaseStatements, AlignCaseColons);
212   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterCaseLabel);
213   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass);
214   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum);
215   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction);
216   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace);
217   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration);
218   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct);
219   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion);
220   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterExternBlock);
221   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch);
222   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse);
223   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeLambdaBody);
224   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeWhile);
225   CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces);
226   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyFunction);
227   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyRecord);
228   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyNamespace);
229   CHECK_PARSE_NESTED_BOOL(KeepEmptyLines, AtEndOfFile);
230   CHECK_PARSE_NESTED_BOOL(KeepEmptyLines, AtStartOfBlock);
231   CHECK_PARSE_NESTED_BOOL(KeepEmptyLines, AtStartOfFile);
232   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterControlStatements);
233   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterForeachMacros);
234   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions,
235                           AfterFunctionDeclarationName);
236   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions,
237                           AfterFunctionDefinitionName);
238   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterIfMacros);
239   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterOverloadedOperator);
240   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterPlacementOperator);
241   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, BeforeNonEmptyParentheses);
242   CHECK_PARSE_NESTED_BOOL(SpacesInParensOptions, ExceptDoubleParentheses);
243   CHECK_PARSE_NESTED_BOOL(SpacesInParensOptions, InCStyleCasts);
244   CHECK_PARSE_NESTED_BOOL(SpacesInParensOptions, InConditionalStatements);
245   CHECK_PARSE_NESTED_BOOL(SpacesInParensOptions, InEmptyParentheses);
246   CHECK_PARSE_NESTED_BOOL(SpacesInParensOptions, Other);
247 }
248 
249 #undef CHECK_PARSE_BOOL
250 
251 TEST(ConfigParseTest, ParsesConfiguration) {
252   FormatStyle Style = {};
253   Style.Language = FormatStyle::LK_Cpp;
254   CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234);
255   CHECK_PARSE("ConstructorInitializerIndentWidth: 1234",
256               ConstructorInitializerIndentWidth, 1234u);
257   CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u);
258   CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u);
259   CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u);
260   CHECK_PARSE("PenaltyBreakAssignment: 1234", PenaltyBreakAssignment, 1234u);
261   CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234",
262               PenaltyBreakBeforeFirstCallParameter, 1234u);
263   CHECK_PARSE("PenaltyBreakTemplateDeclaration: 1234",
264               PenaltyBreakTemplateDeclaration, 1234u);
265   CHECK_PARSE("PenaltyBreakOpenParenthesis: 1234", PenaltyBreakOpenParenthesis,
266               1234u);
267   CHECK_PARSE("PenaltyBreakScopeResolution: 1234", PenaltyBreakScopeResolution,
268               1234u);
269   CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u);
270   CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234",
271               PenaltyReturnTypeOnItsOwnLine, 1234u);
272   CHECK_PARSE("SpacesBeforeTrailingComments: 1234",
273               SpacesBeforeTrailingComments, 1234u);
274   CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u);
275   CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u);
276   CHECK_PARSE("BracedInitializerIndentWidth: 34", BracedInitializerIndentWidth,
277               34);
278   CHECK_PARSE("CommentPragmas: '// abc$'", CommentPragmas, "// abc$");
279 
280   Style.QualifierAlignment = FormatStyle::QAS_Right;
281   CHECK_PARSE("QualifierAlignment: Leave", QualifierAlignment,
282               FormatStyle::QAS_Leave);
283   CHECK_PARSE("QualifierAlignment: Right", QualifierAlignment,
284               FormatStyle::QAS_Right);
285   CHECK_PARSE("QualifierAlignment: Left", QualifierAlignment,
286               FormatStyle::QAS_Left);
287   CHECK_PARSE("QualifierAlignment: Custom", QualifierAlignment,
288               FormatStyle::QAS_Custom);
289 
290   Style.QualifierOrder.clear();
291   CHECK_PARSE("QualifierOrder: [ const, volatile, type ]", QualifierOrder,
292               std::vector<std::string>({"const", "volatile", "type"}));
293   Style.QualifierOrder.clear();
294   CHECK_PARSE("QualifierOrder: [const, type]", QualifierOrder,
295               std::vector<std::string>({"const", "type"}));
296   Style.QualifierOrder.clear();
297   CHECK_PARSE("QualifierOrder: [volatile, type]", QualifierOrder,
298               std::vector<std::string>({"volatile", "type"}));
299 
300 #define CHECK_ALIGN_CONSECUTIVE(FIELD)                                         \
301   do {                                                                         \
302     Style.FIELD.Enabled = true;                                                \
303     CHECK_PARSE(#FIELD ": None", FIELD,                                        \
304                 FormatStyle::AlignConsecutiveStyle({}));                       \
305     CHECK_PARSE(                                                               \
306         #FIELD ": Consecutive", FIELD,                                         \
307         FormatStyle::AlignConsecutiveStyle(                                    \
308             {/*Enabled=*/true, /*AcrossEmptyLines=*/false,                     \
309              /*AcrossComments=*/false, /*AlignCompound=*/false,                \
310              /*AlignFunctionDeclarations=*/true,                               \
311              /*AlignFunctionPointers=*/false, /*PadOperators=*/true}));        \
312     CHECK_PARSE(                                                               \
313         #FIELD ": AcrossEmptyLines", FIELD,                                    \
314         FormatStyle::AlignConsecutiveStyle(                                    \
315             {/*Enabled=*/true, /*AcrossEmptyLines=*/true,                      \
316              /*AcrossComments=*/false, /*AlignCompound=*/false,                \
317              /*AlignFunctionDeclarations=*/true,                               \
318              /*AlignFunctionPointers=*/false, /*PadOperators=*/true}));        \
319     CHECK_PARSE(                                                               \
320         #FIELD ": AcrossComments", FIELD,                                      \
321         FormatStyle::AlignConsecutiveStyle(                                    \
322             {/*Enabled=*/true, /*AcrossEmptyLines=*/false,                     \
323              /*AcrossComments=*/true, /*AlignCompound=*/false,                 \
324              /*AlignFunctionDeclarations=*/true,                               \
325              /*AlignFunctionPointers=*/false, /*PadOperators=*/true}));        \
326     CHECK_PARSE(                                                               \
327         #FIELD ": AcrossEmptyLinesAndComments", FIELD,                         \
328         FormatStyle::AlignConsecutiveStyle(                                    \
329             {/*Enabled=*/true, /*AcrossEmptyLines=*/true,                      \
330              /*AcrossComments=*/true, /*AlignCompound=*/false,                 \
331              /*AlignFunctionDeclarations=*/true,                               \
332              /*AlignFunctionPointers=*/false, /*PadOperators=*/true}));        \
333     /* For backwards compability, false / true should still parse */           \
334     CHECK_PARSE(#FIELD ": false", FIELD,                                       \
335                 FormatStyle::AlignConsecutiveStyle({}));                       \
336     CHECK_PARSE(                                                               \
337         #FIELD ": true", FIELD,                                                \
338         FormatStyle::AlignConsecutiveStyle(                                    \
339             {/*Enabled=*/true, /*AcrossEmptyLines=*/false,                     \
340              /*AcrossComments=*/false, /*AlignCompound=*/false,                \
341              /*AlignFunctionDeclarations=*/true,                               \
342              /*AlignFunctionPointers=*/false, /*PadOperators=*/true}));        \
343                                                                                \
344     CHECK_PARSE_NESTED_BOOL(FIELD, Enabled);                                   \
345     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossEmptyLines);                          \
346     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossComments);                            \
347     CHECK_PARSE_NESTED_BOOL(FIELD, AlignCompound);                             \
348     CHECK_PARSE_NESTED_BOOL(FIELD, AlignFunctionDeclarations);                 \
349     CHECK_PARSE_NESTED_BOOL(FIELD, AlignFunctionPointers);                     \
350     CHECK_PARSE_NESTED_BOOL(FIELD, PadOperators);                              \
351   } while (false)
352 
353   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveAssignments);
354   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveBitFields);
355   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveMacros);
356   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveDeclarations);
357 
358 #undef CHECK_ALIGN_CONSECUTIVE
359 
360   Style.PointerAlignment = FormatStyle::PAS_Middle;
361   CHECK_PARSE("PointerAlignment: Left", PointerAlignment,
362               FormatStyle::PAS_Left);
363   CHECK_PARSE("PointerAlignment: Right", PointerAlignment,
364               FormatStyle::PAS_Right);
365   CHECK_PARSE("PointerAlignment: Middle", PointerAlignment,
366               FormatStyle::PAS_Middle);
367   Style.ReferenceAlignment = FormatStyle::RAS_Middle;
368   CHECK_PARSE("ReferenceAlignment: Pointer", ReferenceAlignment,
369               FormatStyle::RAS_Pointer);
370   CHECK_PARSE("ReferenceAlignment: Left", ReferenceAlignment,
371               FormatStyle::RAS_Left);
372   CHECK_PARSE("ReferenceAlignment: Right", ReferenceAlignment,
373               FormatStyle::RAS_Right);
374   CHECK_PARSE("ReferenceAlignment: Middle", ReferenceAlignment,
375               FormatStyle::RAS_Middle);
376   // For backward compatibility:
377   CHECK_PARSE("PointerBindsToType: Left", PointerAlignment,
378               FormatStyle::PAS_Left);
379   CHECK_PARSE("PointerBindsToType: Right", PointerAlignment,
380               FormatStyle::PAS_Right);
381   CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment,
382               FormatStyle::PAS_Middle);
383 
384   Style.ReflowComments = FormatStyle::RCS_Always;
385   CHECK_PARSE("ReflowComments: Never", ReflowComments, FormatStyle::RCS_Never);
386   CHECK_PARSE("ReflowComments: IndentOnly", ReflowComments,
387               FormatStyle::RCS_IndentOnly);
388   CHECK_PARSE("ReflowComments: Always", ReflowComments,
389               FormatStyle::RCS_Always);
390   // For backward compatibility:
391   CHECK_PARSE("ReflowComments: false", ReflowComments, FormatStyle::RCS_Never);
392   CHECK_PARSE("ReflowComments: true", ReflowComments, FormatStyle::RCS_Always);
393 
394   Style.Standard = FormatStyle::LS_Auto;
395   CHECK_PARSE("Standard: c++03", Standard, FormatStyle::LS_Cpp03);
396   CHECK_PARSE("Standard: c++11", Standard, FormatStyle::LS_Cpp11);
397   CHECK_PARSE("Standard: c++14", Standard, FormatStyle::LS_Cpp14);
398   CHECK_PARSE("Standard: c++17", Standard, FormatStyle::LS_Cpp17);
399   CHECK_PARSE("Standard: c++20", Standard, FormatStyle::LS_Cpp20);
400   CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto);
401   CHECK_PARSE("Standard: Latest", Standard, FormatStyle::LS_Latest);
402   // Legacy aliases:
403   CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03);
404   CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Latest);
405   CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03);
406   CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11);
407 
408   Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
409   CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment",
410               BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment);
411   CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators,
412               FormatStyle::BOS_None);
413   CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators,
414               FormatStyle::BOS_All);
415   // For backward compatibility:
416   CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators,
417               FormatStyle::BOS_None);
418   CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators,
419               FormatStyle::BOS_All);
420 
421   Style.BreakBinaryOperations = FormatStyle::BBO_Never;
422   CHECK_PARSE("BreakBinaryOperations: OnePerLine", BreakBinaryOperations,
423               FormatStyle::BBO_OnePerLine);
424   CHECK_PARSE("BreakBinaryOperations: RespectPrecedence", BreakBinaryOperations,
425               FormatStyle::BBO_RespectPrecedence);
426   CHECK_PARSE("BreakBinaryOperations: Never", BreakBinaryOperations,
427               FormatStyle::BBO_Never);
428 
429   Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
430   CHECK_PARSE("BreakConstructorInitializers: BeforeComma",
431               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
432   CHECK_PARSE("BreakConstructorInitializers: AfterColon",
433               BreakConstructorInitializers, FormatStyle::BCIS_AfterColon);
434   CHECK_PARSE("BreakConstructorInitializers: BeforeColon",
435               BreakConstructorInitializers, FormatStyle::BCIS_BeforeColon);
436   // For backward compatibility:
437   CHECK_PARSE("BreakConstructorInitializersBeforeComma: true",
438               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
439 
440   Style.BreakInheritanceList = FormatStyle::BILS_BeforeColon;
441   CHECK_PARSE("BreakInheritanceList: AfterComma", BreakInheritanceList,
442               FormatStyle::BILS_AfterComma);
443   CHECK_PARSE("BreakInheritanceList: BeforeComma", BreakInheritanceList,
444               FormatStyle::BILS_BeforeComma);
445   CHECK_PARSE("BreakInheritanceList: AfterColon", BreakInheritanceList,
446               FormatStyle::BILS_AfterColon);
447   CHECK_PARSE("BreakInheritanceList: BeforeColon", BreakInheritanceList,
448               FormatStyle::BILS_BeforeColon);
449   // For backward compatibility:
450   CHECK_PARSE("BreakBeforeInheritanceComma: true", BreakInheritanceList,
451               FormatStyle::BILS_BeforeComma);
452 
453   Style.BinPackParameters = FormatStyle::BPPS_OnePerLine;
454   CHECK_PARSE("BinPackParameters: BinPack", BinPackParameters,
455               FormatStyle::BPPS_BinPack);
456   CHECK_PARSE("BinPackParameters: OnePerLine", BinPackParameters,
457               FormatStyle::BPPS_OnePerLine);
458   CHECK_PARSE("BinPackParameters: AlwaysOnePerLine", BinPackParameters,
459               FormatStyle::BPPS_AlwaysOnePerLine);
460   // For backward compatibility.
461   CHECK_PARSE("BinPackParameters: true", BinPackParameters,
462               FormatStyle::BPPS_BinPack);
463   CHECK_PARSE("BinPackParameters: false", BinPackParameters,
464               FormatStyle::BPPS_OnePerLine);
465 
466   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
467   CHECK_PARSE("PackConstructorInitializers: Never", PackConstructorInitializers,
468               FormatStyle::PCIS_Never);
469   CHECK_PARSE("PackConstructorInitializers: BinPack",
470               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
471   CHECK_PARSE("PackConstructorInitializers: CurrentLine",
472               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
473   CHECK_PARSE("PackConstructorInitializers: NextLine",
474               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
475   CHECK_PARSE("PackConstructorInitializers: NextLineOnly",
476               PackConstructorInitializers, FormatStyle::PCIS_NextLineOnly);
477   // For backward compatibility:
478   CHECK_PARSE("BasedOnStyle: Google\n"
479               "ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
480               "AllowAllConstructorInitializersOnNextLine: false",
481               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
482   Style.PackConstructorInitializers = FormatStyle::PCIS_NextLine;
483   CHECK_PARSE("BasedOnStyle: Google\n"
484               "ConstructorInitializerAllOnOneLineOrOnePerLine: false",
485               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
486   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
487               "AllowAllConstructorInitializersOnNextLine: true",
488               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
489   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
490   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
491               "AllowAllConstructorInitializersOnNextLine: false",
492               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
493 
494   Style.EmptyLineBeforeAccessModifier = FormatStyle::ELBAMS_LogicalBlock;
495   CHECK_PARSE("EmptyLineBeforeAccessModifier: Never",
496               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Never);
497   CHECK_PARSE("EmptyLineBeforeAccessModifier: Leave",
498               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Leave);
499   CHECK_PARSE("EmptyLineBeforeAccessModifier: LogicalBlock",
500               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_LogicalBlock);
501   CHECK_PARSE("EmptyLineBeforeAccessModifier: Always",
502               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Always);
503 
504   Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
505   CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket,
506               FormatStyle::BAS_Align);
507   CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket,
508               FormatStyle::BAS_DontAlign);
509   CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket,
510               FormatStyle::BAS_AlwaysBreak);
511   CHECK_PARSE("AlignAfterOpenBracket: BlockIndent", AlignAfterOpenBracket,
512               FormatStyle::BAS_BlockIndent);
513   // For backward compatibility:
514   CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket,
515               FormatStyle::BAS_DontAlign);
516   CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket,
517               FormatStyle::BAS_Align);
518 
519   Style.AlignEscapedNewlines = FormatStyle::ENAS_Left;
520   CHECK_PARSE("AlignEscapedNewlines: DontAlign", AlignEscapedNewlines,
521               FormatStyle::ENAS_DontAlign);
522   CHECK_PARSE("AlignEscapedNewlines: Left", AlignEscapedNewlines,
523               FormatStyle::ENAS_Left);
524   CHECK_PARSE("AlignEscapedNewlines: LeftWithLastLine", AlignEscapedNewlines,
525               FormatStyle::ENAS_LeftWithLastLine);
526   CHECK_PARSE("AlignEscapedNewlines: Right", AlignEscapedNewlines,
527               FormatStyle::ENAS_Right);
528   // For backward compatibility:
529   CHECK_PARSE("AlignEscapedNewlinesLeft: true", AlignEscapedNewlines,
530               FormatStyle::ENAS_Left);
531   CHECK_PARSE("AlignEscapedNewlinesLeft: false", AlignEscapedNewlines,
532               FormatStyle::ENAS_Right);
533 
534   Style.AlignOperands = FormatStyle::OAS_Align;
535   CHECK_PARSE("AlignOperands: DontAlign", AlignOperands,
536               FormatStyle::OAS_DontAlign);
537   CHECK_PARSE("AlignOperands: Align", AlignOperands, FormatStyle::OAS_Align);
538   CHECK_PARSE("AlignOperands: AlignAfterOperator", AlignOperands,
539               FormatStyle::OAS_AlignAfterOperator);
540   // For backward compatibility:
541   CHECK_PARSE("AlignOperands: false", AlignOperands,
542               FormatStyle::OAS_DontAlign);
543   CHECK_PARSE("AlignOperands: true", AlignOperands, FormatStyle::OAS_Align);
544 
545   CHECK_PARSE("AlignTrailingComments: Leave", AlignTrailingComments,
546               FormatStyle::TrailingCommentsAlignmentStyle(
547                   {FormatStyle::TCAS_Leave, 0}));
548   CHECK_PARSE("AlignTrailingComments: Always", AlignTrailingComments,
549               FormatStyle::TrailingCommentsAlignmentStyle(
550                   {FormatStyle::TCAS_Always, 0}));
551   CHECK_PARSE("AlignTrailingComments: Never", AlignTrailingComments,
552               FormatStyle::TrailingCommentsAlignmentStyle(
553                   {FormatStyle::TCAS_Never, 0}));
554   // For backwards compatibility
555   CHECK_PARSE("AlignTrailingComments: true", AlignTrailingComments,
556               FormatStyle::TrailingCommentsAlignmentStyle(
557                   {FormatStyle::TCAS_Always, 0}));
558   CHECK_PARSE("AlignTrailingComments: false", AlignTrailingComments,
559               FormatStyle::TrailingCommentsAlignmentStyle(
560                   {FormatStyle::TCAS_Never, 0}));
561   CHECK_PARSE_NESTED_VALUE("Kind: Always", AlignTrailingComments, Kind,
562                            FormatStyle::TCAS_Always);
563   CHECK_PARSE_NESTED_VALUE("Kind: Never", AlignTrailingComments, Kind,
564                            FormatStyle::TCAS_Never);
565   CHECK_PARSE_NESTED_VALUE("Kind: Leave", AlignTrailingComments, Kind,
566                            FormatStyle::TCAS_Leave);
567   CHECK_PARSE_NESTED_VALUE("OverEmptyLines: 1234", AlignTrailingComments,
568                            OverEmptyLines, 1234u);
569 
570   Style.UseTab = FormatStyle::UT_ForIndentation;
571   CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never);
572   CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation);
573   CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always);
574   CHECK_PARSE("UseTab: ForContinuationAndIndentation", UseTab,
575               FormatStyle::UT_ForContinuationAndIndentation);
576   CHECK_PARSE("UseTab: AlignWithSpaces", UseTab,
577               FormatStyle::UT_AlignWithSpaces);
578   // For backward compatibility:
579   CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never);
580   CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always);
581 
582   Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Empty;
583   CHECK_PARSE("AllowShortBlocksOnASingleLine: Never",
584               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
585   CHECK_PARSE("AllowShortBlocksOnASingleLine: Empty",
586               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Empty);
587   CHECK_PARSE("AllowShortBlocksOnASingleLine: Always",
588               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
589   // For backward compatibility:
590   CHECK_PARSE("AllowShortBlocksOnASingleLine: false",
591               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
592   CHECK_PARSE("AllowShortBlocksOnASingleLine: true",
593               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
594 
595   Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
596   CHECK_PARSE("AllowShortFunctionsOnASingleLine: None",
597               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
598   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline",
599               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline);
600   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty",
601               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty);
602   CHECK_PARSE("AllowShortFunctionsOnASingleLine: All",
603               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
604   // For backward compatibility:
605   CHECK_PARSE("AllowShortFunctionsOnASingleLine: false",
606               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
607   CHECK_PARSE("AllowShortFunctionsOnASingleLine: true",
608               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
609 
610   Style.AllowShortLambdasOnASingleLine = FormatStyle::SLS_All;
611   CHECK_PARSE("AllowShortLambdasOnASingleLine: None",
612               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
613   CHECK_PARSE("AllowShortLambdasOnASingleLine: Empty",
614               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Empty);
615   CHECK_PARSE("AllowShortLambdasOnASingleLine: Inline",
616               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Inline);
617   CHECK_PARSE("AllowShortLambdasOnASingleLine: All",
618               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
619   // For backward compatibility:
620   CHECK_PARSE("AllowShortLambdasOnASingleLine: false",
621               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
622   CHECK_PARSE("AllowShortLambdasOnASingleLine: true",
623               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
624 
625   Style.SpaceAroundPointerQualifiers = FormatStyle::SAPQ_Both;
626   CHECK_PARSE("SpaceAroundPointerQualifiers: Default",
627               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Default);
628   CHECK_PARSE("SpaceAroundPointerQualifiers: Before",
629               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Before);
630   CHECK_PARSE("SpaceAroundPointerQualifiers: After",
631               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_After);
632   CHECK_PARSE("SpaceAroundPointerQualifiers: Both",
633               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Both);
634 
635   Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
636   CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens,
637               FormatStyle::SBPO_Never);
638   CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens,
639               FormatStyle::SBPO_Always);
640   CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens,
641               FormatStyle::SBPO_ControlStatements);
642   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptControlMacros",
643               SpaceBeforeParens,
644               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
645   CHECK_PARSE("SpaceBeforeParens: NonEmptyParentheses", SpaceBeforeParens,
646               FormatStyle::SBPO_NonEmptyParentheses);
647   CHECK_PARSE("SpaceBeforeParens: Custom", SpaceBeforeParens,
648               FormatStyle::SBPO_Custom);
649   // For backward compatibility:
650   CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens,
651               FormatStyle::SBPO_Never);
652   CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens,
653               FormatStyle::SBPO_ControlStatements);
654   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptForEachMacros",
655               SpaceBeforeParens,
656               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
657 
658   // For backward compatibility:
659   Style.SpacesInParens = FormatStyle::SIPO_Never;
660   Style.SpacesInParensOptions = {};
661   CHECK_PARSE("SpacesInParentheses: true", SpacesInParens,
662               FormatStyle::SIPO_Custom);
663   Style.SpacesInParens = FormatStyle::SIPO_Never;
664   Style.SpacesInParensOptions = {};
665   CHECK_PARSE(
666       "SpacesInParentheses: true", SpacesInParensOptions,
667       FormatStyle::SpacesInParensCustom(false, true, false, false, true));
668   Style.SpacesInParens = FormatStyle::SIPO_Never;
669   Style.SpacesInParensOptions = {};
670   CHECK_PARSE(
671       "SpacesInConditionalStatement: true", SpacesInParensOptions,
672       FormatStyle::SpacesInParensCustom(false, true, false, false, false));
673   Style.SpacesInParens = FormatStyle::SIPO_Never;
674   Style.SpacesInParensOptions = {};
675   CHECK_PARSE(
676       "SpacesInCStyleCastParentheses: true", SpacesInParensOptions,
677       FormatStyle::SpacesInParensCustom(false, false, true, false, false));
678   Style.SpacesInParens = FormatStyle::SIPO_Never;
679   Style.SpacesInParensOptions = {};
680   CHECK_PARSE(
681       "SpaceInEmptyParentheses: true", SpacesInParensOptions,
682       FormatStyle::SpacesInParensCustom(false, false, false, true, false));
683   Style.SpacesInParens = FormatStyle::SIPO_Never;
684   Style.SpacesInParensOptions = {};
685 
686   Style.ColumnLimit = 123;
687   FormatStyle BaseStyle = getLLVMStyle();
688   CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit);
689   CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u);
690 
691   Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
692   CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces,
693               FormatStyle::BS_Attach);
694   CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces,
695               FormatStyle::BS_Linux);
696   CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces,
697               FormatStyle::BS_Mozilla);
698   CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces,
699               FormatStyle::BS_Stroustrup);
700   CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces,
701               FormatStyle::BS_Allman);
702   CHECK_PARSE("BreakBeforeBraces: Whitesmiths", BreakBeforeBraces,
703               FormatStyle::BS_Whitesmiths);
704   CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU);
705   CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces,
706               FormatStyle::BS_WebKit);
707   CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces,
708               FormatStyle::BS_Custom);
709 
710   Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Never;
711   CHECK_PARSE("BraceWrapping:\n"
712               "  AfterControlStatement: MultiLine",
713               BraceWrapping.AfterControlStatement,
714               FormatStyle::BWACS_MultiLine);
715   CHECK_PARSE("BraceWrapping:\n"
716               "  AfterControlStatement: Always",
717               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
718   CHECK_PARSE("BraceWrapping:\n"
719               "  AfterControlStatement: Never",
720               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
721   // For backward compatibility:
722   CHECK_PARSE("BraceWrapping:\n"
723               "  AfterControlStatement: true",
724               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
725   CHECK_PARSE("BraceWrapping:\n"
726               "  AfterControlStatement: false",
727               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
728 
729   Style.BreakAfterReturnType = FormatStyle::RTBS_All;
730   CHECK_PARSE("BreakAfterReturnType: None", BreakAfterReturnType,
731               FormatStyle::RTBS_None);
732   CHECK_PARSE("BreakAfterReturnType: Automatic", BreakAfterReturnType,
733               FormatStyle::RTBS_Automatic);
734   CHECK_PARSE("BreakAfterReturnType: ExceptShortType", BreakAfterReturnType,
735               FormatStyle::RTBS_ExceptShortType);
736   CHECK_PARSE("BreakAfterReturnType: All", BreakAfterReturnType,
737               FormatStyle::RTBS_All);
738   CHECK_PARSE("BreakAfterReturnType: TopLevel", BreakAfterReturnType,
739               FormatStyle::RTBS_TopLevel);
740   CHECK_PARSE("BreakAfterReturnType: AllDefinitions", BreakAfterReturnType,
741               FormatStyle::RTBS_AllDefinitions);
742   CHECK_PARSE("BreakAfterReturnType: TopLevelDefinitions", BreakAfterReturnType,
743               FormatStyle::RTBS_TopLevelDefinitions);
744   // For backward compatibility:
745   CHECK_PARSE("AlwaysBreakAfterReturnType: None", BreakAfterReturnType,
746               FormatStyle::RTBS_None);
747   CHECK_PARSE("AlwaysBreakAfterReturnType: Automatic", BreakAfterReturnType,
748               FormatStyle::RTBS_Automatic);
749   CHECK_PARSE("AlwaysBreakAfterReturnType: ExceptShortType",
750               BreakAfterReturnType, FormatStyle::RTBS_ExceptShortType);
751   CHECK_PARSE("AlwaysBreakAfterReturnType: All", BreakAfterReturnType,
752               FormatStyle::RTBS_All);
753   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel", BreakAfterReturnType,
754               FormatStyle::RTBS_TopLevel);
755   CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions",
756               BreakAfterReturnType, FormatStyle::RTBS_AllDefinitions);
757   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions",
758               BreakAfterReturnType, FormatStyle::RTBS_TopLevelDefinitions);
759 
760   Style.BreakTemplateDeclarations = FormatStyle::BTDS_Yes;
761   CHECK_PARSE("BreakTemplateDeclarations: Leave", BreakTemplateDeclarations,
762               FormatStyle::BTDS_Leave);
763   CHECK_PARSE("BreakTemplateDeclarations: No", BreakTemplateDeclarations,
764               FormatStyle::BTDS_No);
765   CHECK_PARSE("BreakTemplateDeclarations: MultiLine", BreakTemplateDeclarations,
766               FormatStyle::BTDS_MultiLine);
767   CHECK_PARSE("BreakTemplateDeclarations: Yes", BreakTemplateDeclarations,
768               FormatStyle::BTDS_Yes);
769   CHECK_PARSE("BreakTemplateDeclarations: false", BreakTemplateDeclarations,
770               FormatStyle::BTDS_MultiLine);
771   CHECK_PARSE("BreakTemplateDeclarations: true", BreakTemplateDeclarations,
772               FormatStyle::BTDS_Yes);
773   // For backward compatibility:
774   CHECK_PARSE("AlwaysBreakTemplateDeclarations: Leave",
775               BreakTemplateDeclarations, FormatStyle::BTDS_Leave);
776   CHECK_PARSE("AlwaysBreakTemplateDeclarations: No", BreakTemplateDeclarations,
777               FormatStyle::BTDS_No);
778   CHECK_PARSE("AlwaysBreakTemplateDeclarations: MultiLine",
779               BreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
780   CHECK_PARSE("AlwaysBreakTemplateDeclarations: Yes", BreakTemplateDeclarations,
781               FormatStyle::BTDS_Yes);
782   CHECK_PARSE("AlwaysBreakTemplateDeclarations: false",
783               BreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
784   CHECK_PARSE("AlwaysBreakTemplateDeclarations: true",
785               BreakTemplateDeclarations, FormatStyle::BTDS_Yes);
786 
787   Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All;
788   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None",
789               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None);
790   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All",
791               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All);
792   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel",
793               AlwaysBreakAfterDefinitionReturnType,
794               FormatStyle::DRTBS_TopLevel);
795 
796   Style.NamespaceIndentation = FormatStyle::NI_All;
797   CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation,
798               FormatStyle::NI_None);
799   CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation,
800               FormatStyle::NI_Inner);
801   CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation,
802               FormatStyle::NI_All);
803 
804   Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_OnlyFirstIf;
805   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Never",
806               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
807   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: WithoutElse",
808               AllowShortIfStatementsOnASingleLine,
809               FormatStyle::SIS_WithoutElse);
810   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: OnlyFirstIf",
811               AllowShortIfStatementsOnASingleLine,
812               FormatStyle::SIS_OnlyFirstIf);
813   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: AllIfsAndElse",
814               AllowShortIfStatementsOnASingleLine,
815               FormatStyle::SIS_AllIfsAndElse);
816   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Always",
817               AllowShortIfStatementsOnASingleLine,
818               FormatStyle::SIS_OnlyFirstIf);
819   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: false",
820               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
821   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: true",
822               AllowShortIfStatementsOnASingleLine,
823               FormatStyle::SIS_WithoutElse);
824 
825   Style.IndentExternBlock = FormatStyle::IEBS_NoIndent;
826   CHECK_PARSE("IndentExternBlock: AfterExternBlock", IndentExternBlock,
827               FormatStyle::IEBS_AfterExternBlock);
828   CHECK_PARSE("IndentExternBlock: Indent", IndentExternBlock,
829               FormatStyle::IEBS_Indent);
830   CHECK_PARSE("IndentExternBlock: NoIndent", IndentExternBlock,
831               FormatStyle::IEBS_NoIndent);
832   CHECK_PARSE("IndentExternBlock: true", IndentExternBlock,
833               FormatStyle::IEBS_Indent);
834   CHECK_PARSE("IndentExternBlock: false", IndentExternBlock,
835               FormatStyle::IEBS_NoIndent);
836 
837   Style.BitFieldColonSpacing = FormatStyle::BFCS_None;
838   CHECK_PARSE("BitFieldColonSpacing: Both", BitFieldColonSpacing,
839               FormatStyle::BFCS_Both);
840   CHECK_PARSE("BitFieldColonSpacing: None", BitFieldColonSpacing,
841               FormatStyle::BFCS_None);
842   CHECK_PARSE("BitFieldColonSpacing: Before", BitFieldColonSpacing,
843               FormatStyle::BFCS_Before);
844   CHECK_PARSE("BitFieldColonSpacing: After", BitFieldColonSpacing,
845               FormatStyle::BFCS_After);
846 
847   Style.SortJavaStaticImport = FormatStyle::SJSIO_Before;
848   CHECK_PARSE("SortJavaStaticImport: After", SortJavaStaticImport,
849               FormatStyle::SJSIO_After);
850   CHECK_PARSE("SortJavaStaticImport: Before", SortJavaStaticImport,
851               FormatStyle::SJSIO_Before);
852 
853   Style.SortUsingDeclarations = FormatStyle::SUD_LexicographicNumeric;
854   CHECK_PARSE("SortUsingDeclarations: Never", SortUsingDeclarations,
855               FormatStyle::SUD_Never);
856   CHECK_PARSE("SortUsingDeclarations: Lexicographic", SortUsingDeclarations,
857               FormatStyle::SUD_Lexicographic);
858   CHECK_PARSE("SortUsingDeclarations: LexicographicNumeric",
859               SortUsingDeclarations, FormatStyle::SUD_LexicographicNumeric);
860   // For backward compatibility:
861   CHECK_PARSE("SortUsingDeclarations: false", SortUsingDeclarations,
862               FormatStyle::SUD_Never);
863   CHECK_PARSE("SortUsingDeclarations: true", SortUsingDeclarations,
864               FormatStyle::SUD_LexicographicNumeric);
865 
866   // FIXME: This is required because parsing a configuration simply overwrites
867   // the first N elements of the list instead of resetting it.
868   Style.ForEachMacros.clear();
869   std::vector<std::string> BoostForeach;
870   BoostForeach.push_back("BOOST_FOREACH");
871   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach);
872   std::vector<std::string> BoostAndQForeach;
873   BoostAndQForeach.push_back("BOOST_FOREACH");
874   BoostAndQForeach.push_back("Q_FOREACH");
875   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros,
876               BoostAndQForeach);
877 
878   Style.IfMacros.clear();
879   std::vector<std::string> CustomIfs;
880   CustomIfs.push_back("MYIF");
881   CHECK_PARSE("IfMacros: [MYIF]", IfMacros, CustomIfs);
882 
883   Style.AttributeMacros.clear();
884   CHECK_PARSE("BasedOnStyle: LLVM", AttributeMacros,
885               std::vector<std::string>{"__capability"});
886   CHECK_PARSE("AttributeMacros: [attr1, attr2]", AttributeMacros,
887               std::vector<std::string>({"attr1", "attr2"}));
888 
889   Style.StatementAttributeLikeMacros.clear();
890   CHECK_PARSE("StatementAttributeLikeMacros: [emit,Q_EMIT]",
891               StatementAttributeLikeMacros,
892               std::vector<std::string>({"emit", "Q_EMIT"}));
893 
894   Style.StatementMacros.clear();
895   CHECK_PARSE("StatementMacros: [QUNUSED]", StatementMacros,
896               std::vector<std::string>{"QUNUSED"});
897   CHECK_PARSE("StatementMacros: [QUNUSED, QT_REQUIRE_VERSION]", StatementMacros,
898               std::vector<std::string>({"QUNUSED", "QT_REQUIRE_VERSION"}));
899 
900   Style.NamespaceMacros.clear();
901   CHECK_PARSE("NamespaceMacros: [TESTSUITE]", NamespaceMacros,
902               std::vector<std::string>{"TESTSUITE"});
903   CHECK_PARSE("NamespaceMacros: [TESTSUITE, SUITE]", NamespaceMacros,
904               std::vector<std::string>({"TESTSUITE", "SUITE"}));
905 
906   Style.WhitespaceSensitiveMacros.clear();
907   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE]",
908               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
909   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE, ASSERT]",
910               WhitespaceSensitiveMacros,
911               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
912   Style.WhitespaceSensitiveMacros.clear();
913   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE']",
914               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
915   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE', 'ASSERT']",
916               WhitespaceSensitiveMacros,
917               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
918 
919   Style.IncludeStyle.IncludeCategories.clear();
920   std::vector<tooling::IncludeStyle::IncludeCategory> ExpectedCategories = {
921       {"abc/.*", 2, 0, false}, {".*", 1, 0, true}};
922   CHECK_PARSE("IncludeCategories:\n"
923               "  - Regex: abc/.*\n"
924               "    Priority: 2\n"
925               "  - Regex: .*\n"
926               "    Priority: 1\n"
927               "    CaseSensitive: true",
928               IncludeStyle.IncludeCategories, ExpectedCategories);
929   CHECK_PARSE("IncludeIsMainRegex: 'abc$'", IncludeStyle.IncludeIsMainRegex,
930               "abc$");
931   CHECK_PARSE("IncludeIsMainSourceRegex: 'abc$'",
932               IncludeStyle.IncludeIsMainSourceRegex, "abc$");
933 
934   Style.SortIncludes = FormatStyle::SI_Never;
935   CHECK_PARSE("SortIncludes: true", SortIncludes,
936               FormatStyle::SI_CaseSensitive);
937   CHECK_PARSE("SortIncludes: false", SortIncludes, FormatStyle::SI_Never);
938   CHECK_PARSE("SortIncludes: CaseInsensitive", SortIncludes,
939               FormatStyle::SI_CaseInsensitive);
940   CHECK_PARSE("SortIncludes: CaseSensitive", SortIncludes,
941               FormatStyle::SI_CaseSensitive);
942   CHECK_PARSE("SortIncludes: Never", SortIncludes, FormatStyle::SI_Never);
943 
944   Style.RawStringFormats.clear();
945   std::vector<FormatStyle::RawStringFormat> ExpectedRawStringFormats = {
946       {
947           FormatStyle::LK_TextProto,
948           {"pb", "proto"},
949           {"PARSE_TEXT_PROTO"},
950           /*CanonicalDelimiter=*/"",
951           "llvm",
952       },
953       {
954           FormatStyle::LK_Cpp,
955           {"cc", "cpp"},
956           {"C_CODEBLOCK", "CPPEVAL"},
957           /*CanonicalDelimiter=*/"cc",
958           /*BasedOnStyle=*/"",
959       },
960   };
961 
962   CHECK_PARSE("RawStringFormats:\n"
963               "  - Language: TextProto\n"
964               "    Delimiters:\n"
965               "      - 'pb'\n"
966               "      - 'proto'\n"
967               "    EnclosingFunctions:\n"
968               "      - 'PARSE_TEXT_PROTO'\n"
969               "    BasedOnStyle: llvm\n"
970               "  - Language: Cpp\n"
971               "    Delimiters:\n"
972               "      - 'cc'\n"
973               "      - 'cpp'\n"
974               "    EnclosingFunctions:\n"
975               "      - 'C_CODEBLOCK'\n"
976               "      - 'CPPEVAL'\n"
977               "    CanonicalDelimiter: 'cc'",
978               RawStringFormats, ExpectedRawStringFormats);
979 
980   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
981               "  Minimum: 0\n"
982               "  Maximum: 0",
983               SpacesInLineCommentPrefix.Minimum, 0u);
984   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Maximum, 0u);
985   Style.SpacesInLineCommentPrefix.Minimum = 1;
986   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
987               "  Minimum: 2",
988               SpacesInLineCommentPrefix.Minimum, 0u);
989   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
990               "  Maximum: -1",
991               SpacesInLineCommentPrefix.Maximum, -1u);
992   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
993               "  Minimum: 2",
994               SpacesInLineCommentPrefix.Minimum, 2u);
995   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
996               "  Maximum: 1",
997               SpacesInLineCommentPrefix.Maximum, 1u);
998   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Minimum, 1u);
999 
1000   Style.SpacesInAngles = FormatStyle::SIAS_Always;
1001   CHECK_PARSE("SpacesInAngles: Never", SpacesInAngles, FormatStyle::SIAS_Never);
1002   CHECK_PARSE("SpacesInAngles: Always", SpacesInAngles,
1003               FormatStyle::SIAS_Always);
1004   CHECK_PARSE("SpacesInAngles: Leave", SpacesInAngles, FormatStyle::SIAS_Leave);
1005   // For backward compatibility:
1006   CHECK_PARSE("SpacesInAngles: false", SpacesInAngles, FormatStyle::SIAS_Never);
1007   CHECK_PARSE("SpacesInAngles: true", SpacesInAngles, FormatStyle::SIAS_Always);
1008 
1009   CHECK_PARSE("RequiresClausePosition: WithPreceding", RequiresClausePosition,
1010               FormatStyle::RCPS_WithPreceding);
1011   CHECK_PARSE("RequiresClausePosition: WithFollowing", RequiresClausePosition,
1012               FormatStyle::RCPS_WithFollowing);
1013   CHECK_PARSE("RequiresClausePosition: SingleLine", RequiresClausePosition,
1014               FormatStyle::RCPS_SingleLine);
1015   CHECK_PARSE("RequiresClausePosition: OwnLine", RequiresClausePosition,
1016               FormatStyle::RCPS_OwnLine);
1017 
1018   CHECK_PARSE("BreakBeforeConceptDeclarations: Never",
1019               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Never);
1020   CHECK_PARSE("BreakBeforeConceptDeclarations: Always",
1021               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
1022   CHECK_PARSE("BreakBeforeConceptDeclarations: Allowed",
1023               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
1024   // For backward compatibility:
1025   CHECK_PARSE("BreakBeforeConceptDeclarations: true",
1026               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
1027   CHECK_PARSE("BreakBeforeConceptDeclarations: false",
1028               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
1029 
1030   CHECK_PARSE("BreakAfterAttributes: Always", BreakAfterAttributes,
1031               FormatStyle::ABS_Always);
1032   CHECK_PARSE("BreakAfterAttributes: Leave", BreakAfterAttributes,
1033               FormatStyle::ABS_Leave);
1034   CHECK_PARSE("BreakAfterAttributes: Never", BreakAfterAttributes,
1035               FormatStyle::ABS_Never);
1036 
1037   const auto DefaultLineEnding = FormatStyle::LE_DeriveLF;
1038   CHECK_PARSE("LineEnding: LF", LineEnding, FormatStyle::LE_LF);
1039   CHECK_PARSE("LineEnding: CRLF", LineEnding, FormatStyle::LE_CRLF);
1040   CHECK_PARSE("LineEnding: DeriveCRLF", LineEnding, FormatStyle::LE_DeriveCRLF);
1041   CHECK_PARSE("LineEnding: DeriveLF", LineEnding, DefaultLineEnding);
1042   // For backward compatibility:
1043   CHECK_PARSE("DeriveLineEnding: false", LineEnding, FormatStyle::LE_LF);
1044   Style.LineEnding = DefaultLineEnding;
1045   CHECK_PARSE("DeriveLineEnding: false\n"
1046               "UseCRLF: true",
1047               LineEnding, FormatStyle::LE_CRLF);
1048   Style.LineEnding = DefaultLineEnding;
1049   CHECK_PARSE("UseCRLF: true", LineEnding, FormatStyle::LE_DeriveCRLF);
1050 
1051   CHECK_PARSE("RemoveParentheses: MultipleParentheses", RemoveParentheses,
1052               FormatStyle::RPS_MultipleParentheses);
1053   CHECK_PARSE("RemoveParentheses: ReturnStatement", RemoveParentheses,
1054               FormatStyle::RPS_ReturnStatement);
1055   CHECK_PARSE("RemoveParentheses: Leave", RemoveParentheses,
1056               FormatStyle::RPS_Leave);
1057 
1058   CHECK_PARSE("AllowBreakBeforeNoexceptSpecifier: Always",
1059               AllowBreakBeforeNoexceptSpecifier, FormatStyle::BBNSS_Always);
1060   CHECK_PARSE("AllowBreakBeforeNoexceptSpecifier: OnlyWithParen",
1061               AllowBreakBeforeNoexceptSpecifier,
1062               FormatStyle::BBNSS_OnlyWithParen);
1063   CHECK_PARSE("AllowBreakBeforeNoexceptSpecifier: Never",
1064               AllowBreakBeforeNoexceptSpecifier, FormatStyle::BBNSS_Never);
1065 
1066   Style.SeparateDefinitionBlocks = FormatStyle::SDS_Never;
1067   CHECK_PARSE("SeparateDefinitionBlocks: Always", SeparateDefinitionBlocks,
1068               FormatStyle::SDS_Always);
1069   CHECK_PARSE("SeparateDefinitionBlocks: Leave", SeparateDefinitionBlocks,
1070               FormatStyle::SDS_Leave);
1071   CHECK_PARSE("SeparateDefinitionBlocks: Never", SeparateDefinitionBlocks,
1072               FormatStyle::SDS_Never);
1073 }
1074 
1075 TEST(ConfigParseTest, ParsesConfigurationWithLanguages) {
1076   FormatStyle Style = {};
1077   Style.Language = FormatStyle::LK_Cpp;
1078   CHECK_PARSE("Language: Cpp\n"
1079               "IndentWidth: 12",
1080               IndentWidth, 12u);
1081   EXPECT_EQ(parseConfiguration("Language: JavaScript\n"
1082                                "IndentWidth: 34",
1083                                &Style),
1084             ParseError::Unsuitable);
1085   FormatStyle BinPackedTCS = {};
1086   BinPackedTCS.Language = FormatStyle::LK_JavaScript;
1087   EXPECT_EQ(parseConfiguration("BinPackArguments: true\n"
1088                                "InsertTrailingCommas: Wrapped",
1089                                &BinPackedTCS),
1090             ParseError::BinPackTrailingCommaConflict);
1091   EXPECT_EQ(12u, Style.IndentWidth);
1092   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
1093   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
1094 
1095   Style.Language = FormatStyle::LK_JavaScript;
1096   CHECK_PARSE("Language: JavaScript\n"
1097               "IndentWidth: 12",
1098               IndentWidth, 12u);
1099   CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u);
1100   EXPECT_EQ(parseConfiguration("Language: Cpp\n"
1101                                "IndentWidth: 34",
1102                                &Style),
1103             ParseError::Unsuitable);
1104   EXPECT_EQ(23u, Style.IndentWidth);
1105   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
1106   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
1107 
1108   CHECK_PARSE("BasedOnStyle: LLVM\n"
1109               "IndentWidth: 67",
1110               IndentWidth, 67u);
1111 
1112   CHECK_PARSE("---\n"
1113               "Language: JavaScript\n"
1114               "IndentWidth: 12\n"
1115               "---\n"
1116               "Language: Cpp\n"
1117               "IndentWidth: 34\n"
1118               "...\n",
1119               IndentWidth, 12u);
1120 
1121   Style.Language = FormatStyle::LK_Cpp;
1122   CHECK_PARSE("---\n"
1123               "Language: JavaScript\n"
1124               "IndentWidth: 12\n"
1125               "---\n"
1126               "Language: Cpp\n"
1127               "IndentWidth: 34\n"
1128               "...\n",
1129               IndentWidth, 34u);
1130   CHECK_PARSE("---\n"
1131               "IndentWidth: 78\n"
1132               "---\n"
1133               "Language: JavaScript\n"
1134               "IndentWidth: 56\n"
1135               "...\n",
1136               IndentWidth, 78u);
1137 
1138   Style.ColumnLimit = 123;
1139   Style.IndentWidth = 234;
1140   Style.BreakBeforeBraces = FormatStyle::BS_Linux;
1141   Style.TabWidth = 345;
1142   EXPECT_FALSE(parseConfiguration("---\n"
1143                                   "IndentWidth: 456\n"
1144                                   "BreakBeforeBraces: Allman\n"
1145                                   "---\n"
1146                                   "Language: JavaScript\n"
1147                                   "IndentWidth: 111\n"
1148                                   "TabWidth: 111\n"
1149                                   "---\n"
1150                                   "Language: Cpp\n"
1151                                   "BreakBeforeBraces: Stroustrup\n"
1152                                   "TabWidth: 789\n"
1153                                   "...\n",
1154                                   &Style));
1155   EXPECT_EQ(123u, Style.ColumnLimit);
1156   EXPECT_EQ(456u, Style.IndentWidth);
1157   EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces);
1158   EXPECT_EQ(789u, Style.TabWidth);
1159 
1160   EXPECT_EQ(parseConfiguration("---\n"
1161                                "Language: JavaScript\n"
1162                                "IndentWidth: 56\n"
1163                                "---\n"
1164                                "IndentWidth: 78\n"
1165                                "...\n",
1166                                &Style),
1167             ParseError::Error);
1168   EXPECT_EQ(parseConfiguration("---\n"
1169                                "Language: JavaScript\n"
1170                                "IndentWidth: 56\n"
1171                                "---\n"
1172                                "Language: JavaScript\n"
1173                                "IndentWidth: 78\n"
1174                                "...\n",
1175                                &Style),
1176             ParseError::Error);
1177 
1178   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
1179 
1180   Style.Language = FormatStyle::LK_Verilog;
1181   CHECK_PARSE("---\n"
1182               "Language: Verilog\n"
1183               "IndentWidth: 12\n"
1184               "---\n"
1185               "Language: Cpp\n"
1186               "IndentWidth: 34\n"
1187               "...\n",
1188               IndentWidth, 12u);
1189   CHECK_PARSE("---\n"
1190               "IndentWidth: 78\n"
1191               "---\n"
1192               "Language: Verilog\n"
1193               "IndentWidth: 56\n"
1194               "...\n",
1195               IndentWidth, 56u);
1196 }
1197 
1198 TEST(ConfigParseTest, UsesLanguageForBasedOnStyle) {
1199   FormatStyle Style = {};
1200   Style.Language = FormatStyle::LK_JavaScript;
1201   Style.BreakBeforeTernaryOperators = true;
1202   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value());
1203   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1204 
1205   Style.BreakBeforeTernaryOperators = true;
1206   EXPECT_EQ(0, parseConfiguration("---\n"
1207                                   "BasedOnStyle: Google\n"
1208                                   "---\n"
1209                                   "Language: JavaScript\n"
1210                                   "IndentWidth: 76\n"
1211                                   "...\n",
1212                                   &Style)
1213                    .value());
1214   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1215   EXPECT_EQ(76u, Style.IndentWidth);
1216   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
1217 }
1218 
1219 TEST(ConfigParseTest, ConfigurationRoundTripTest) {
1220   FormatStyle Style = getLLVMStyle();
1221   std::string YAML = configurationAsText(Style);
1222   FormatStyle ParsedStyle = {};
1223   ParsedStyle.Language = FormatStyle::LK_Cpp;
1224   EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value());
1225   EXPECT_EQ(Style, ParsedStyle);
1226 }
1227 
1228 TEST(ConfigParseTest, GetStyleWithEmptyFileName) {
1229   llvm::vfs::InMemoryFileSystem FS;
1230   auto Style1 = getStyle("file", "", "Google", "", &FS);
1231   ASSERT_TRUE((bool)Style1);
1232   ASSERT_EQ(*Style1, getGoogleStyle());
1233 }
1234 
1235 TEST(ConfigParseTest, GetStyleOfFile) {
1236   llvm::vfs::InMemoryFileSystem FS;
1237   // Test 1: format file in the same directory.
1238   ASSERT_TRUE(
1239       FS.addFile("/a/.clang-format", 0,
1240                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1241   ASSERT_TRUE(
1242       FS.addFile("/a/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1243   auto Style1 = getStyle("file", "/a/.clang-format", "Google", "", &FS);
1244   ASSERT_TRUE((bool)Style1);
1245   ASSERT_EQ(*Style1, getLLVMStyle());
1246 
1247   // Test 2.1: fallback to default.
1248   ASSERT_TRUE(
1249       FS.addFile("/b/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1250   auto Style2 = getStyle("file", "/b/test.cpp", "Mozilla", "", &FS);
1251   ASSERT_TRUE((bool)Style2);
1252   ASSERT_EQ(*Style2, getMozillaStyle());
1253 
1254   // Test 2.2: no format on 'none' fallback style.
1255   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1256   ASSERT_TRUE((bool)Style2);
1257   ASSERT_EQ(*Style2, getNoStyle());
1258 
1259   // Test 2.3: format if config is found with no based style while fallback is
1260   // 'none'.
1261   ASSERT_TRUE(FS.addFile("/b/.clang-format", 0,
1262                          llvm::MemoryBuffer::getMemBuffer("IndentWidth: 2")));
1263   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1264   ASSERT_TRUE((bool)Style2);
1265   ASSERT_EQ(*Style2, getLLVMStyle());
1266 
1267   // Test 2.4: format if yaml with no based style, while fallback is 'none'.
1268   Style2 = getStyle("{}", "a.h", "none", "", &FS);
1269   ASSERT_TRUE((bool)Style2);
1270   ASSERT_EQ(*Style2, getLLVMStyle());
1271 
1272   // Test 3: format file in parent directory.
1273   ASSERT_TRUE(
1274       FS.addFile("/c/.clang-format", 0,
1275                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1276   ASSERT_TRUE(FS.addFile("/c/sub/sub/sub/test.cpp", 0,
1277                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1278   auto Style3 = getStyle("file", "/c/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1279   ASSERT_TRUE((bool)Style3);
1280   ASSERT_EQ(*Style3, getGoogleStyle());
1281 
1282   // Test 4: error on invalid fallback style
1283   auto Style4 = getStyle("file", "a.h", "KungFu", "", &FS);
1284   ASSERT_FALSE((bool)Style4);
1285   llvm::consumeError(Style4.takeError());
1286 
1287   // Test 5: error on invalid yaml on command line
1288   auto Style5 = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS,
1289                          /*AllowUnknownOptions=*/false, dropDiagnosticHandler);
1290   ASSERT_FALSE((bool)Style5);
1291   llvm::consumeError(Style5.takeError());
1292 
1293   // Test 6: error on invalid style
1294   auto Style6 = getStyle("KungFu", "a.h", "LLVM", "", &FS);
1295   ASSERT_FALSE((bool)Style6);
1296   llvm::consumeError(Style6.takeError());
1297 
1298   // Test 7: found config file, error on parsing it
1299   ASSERT_TRUE(
1300       FS.addFile("/d/.clang-format", 0,
1301                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM\n"
1302                                                   "InvalidKey: InvalidValue")));
1303   ASSERT_TRUE(
1304       FS.addFile("/d/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1305   auto Style7a = getStyle("file", "/d/.clang-format", "LLVM", "", &FS,
1306                           /*AllowUnknownOptions=*/false, dropDiagnosticHandler);
1307   ASSERT_FALSE((bool)Style7a);
1308   llvm::consumeError(Style7a.takeError());
1309 
1310   auto Style7b = getStyle("file", "/d/.clang-format", "LLVM", "", &FS,
1311                           /*AllowUnknownOptions=*/true, dropDiagnosticHandler);
1312   ASSERT_TRUE((bool)Style7b);
1313 
1314   // Test 8: inferred per-language defaults apply.
1315   auto StyleTd = getStyle("file", "x.td", "llvm", "", &FS);
1316   ASSERT_TRUE((bool)StyleTd);
1317   ASSERT_EQ(*StyleTd, getLLVMStyle(FormatStyle::LK_TableGen));
1318 
1319   // Test 9.1.1: overwriting a file style, when no parent file exists with no
1320   // fallback style.
1321   ASSERT_TRUE(FS.addFile(
1322       "/e/sub/.clang-format", 0,
1323       llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: InheritParentConfig\n"
1324                                        "ColumnLimit: 20")));
1325   ASSERT_TRUE(FS.addFile("/e/sub/code.cpp", 0,
1326                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1327   auto Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1328   ASSERT_TRUE(static_cast<bool>(Style9));
1329   ASSERT_EQ(*Style9, [] {
1330     auto Style = getNoStyle();
1331     Style.ColumnLimit = 20;
1332     return Style;
1333   }());
1334 
1335   // Test 9.1.2: propagate more than one level with no parent file.
1336   ASSERT_TRUE(FS.addFile("/e/sub/sub/code.cpp", 0,
1337                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1338   ASSERT_TRUE(FS.addFile("/e/sub/sub/.clang-format", 0,
1339                          llvm::MemoryBuffer::getMemBuffer(
1340                              "BasedOnStyle: InheritParentConfig\n"
1341                              "WhitespaceSensitiveMacros: ['FOO', 'BAR']")));
1342   std::vector<std::string> NonDefaultWhiteSpaceMacros =
1343       Style9->WhitespaceSensitiveMacros;
1344   NonDefaultWhiteSpaceMacros[0] = "FOO";
1345   NonDefaultWhiteSpaceMacros[1] = "BAR";
1346 
1347   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1348   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1349   ASSERT_TRUE(static_cast<bool>(Style9));
1350   ASSERT_EQ(*Style9, [&NonDefaultWhiteSpaceMacros] {
1351     auto Style = getNoStyle();
1352     Style.ColumnLimit = 20;
1353     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1354     return Style;
1355   }());
1356 
1357   // Test 9.2: with LLVM fallback style
1358   Style9 = getStyle("file", "/e/sub/code.cpp", "LLVM", "", &FS);
1359   ASSERT_TRUE(static_cast<bool>(Style9));
1360   ASSERT_EQ(*Style9, [] {
1361     auto Style = getLLVMStyle();
1362     Style.ColumnLimit = 20;
1363     return Style;
1364   }());
1365 
1366   // Test 9.3: with a parent file
1367   ASSERT_TRUE(
1368       FS.addFile("/e/.clang-format", 0,
1369                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google\n"
1370                                                   "UseTab: Always")));
1371   Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1372   ASSERT_TRUE(static_cast<bool>(Style9));
1373   ASSERT_EQ(*Style9, [] {
1374     auto Style = getGoogleStyle();
1375     Style.ColumnLimit = 20;
1376     Style.UseTab = FormatStyle::UT_Always;
1377     return Style;
1378   }());
1379 
1380   // Test 9.4: propagate more than one level with a parent file.
1381   const auto SubSubStyle = [&NonDefaultWhiteSpaceMacros] {
1382     auto Style = getGoogleStyle();
1383     Style.ColumnLimit = 20;
1384     Style.UseTab = FormatStyle::UT_Always;
1385     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1386     return Style;
1387   }();
1388 
1389   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1390   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1391   ASSERT_TRUE(static_cast<bool>(Style9));
1392   ASSERT_EQ(*Style9, SubSubStyle);
1393 
1394   // Test 9.5: use InheritParentConfig as style name
1395   Style9 =
1396       getStyle("inheritparentconfig", "/e/sub/sub/code.cpp", "none", "", &FS);
1397   ASSERT_TRUE(static_cast<bool>(Style9));
1398   ASSERT_EQ(*Style9, SubSubStyle);
1399 
1400   // Test 9.6: use command line style with inheritance
1401   Style9 = getStyle("{BasedOnStyle: InheritParentConfig}",
1402                     "/e/sub/sub/code.cpp", "none", "", &FS);
1403   ASSERT_TRUE(static_cast<bool>(Style9));
1404   ASSERT_EQ(*Style9, SubSubStyle);
1405 
1406   // Test 9.7: use command line style with inheritance and own config
1407   Style9 = getStyle("{BasedOnStyle: InheritParentConfig, "
1408                     "WhitespaceSensitiveMacros: ['FOO', 'BAR']}",
1409                     "/e/sub/code.cpp", "none", "", &FS);
1410   ASSERT_TRUE(static_cast<bool>(Style9));
1411   ASSERT_EQ(*Style9, SubSubStyle);
1412 
1413   // Test 9.8: use inheritance from a file without BasedOnStyle
1414   ASSERT_TRUE(FS.addFile("/e/withoutbase/.clang-format", 0,
1415                          llvm::MemoryBuffer::getMemBuffer("ColumnLimit: 123")));
1416   ASSERT_TRUE(
1417       FS.addFile("/e/withoutbase/sub/.clang-format", 0,
1418                  llvm::MemoryBuffer::getMemBuffer(
1419                      "BasedOnStyle: InheritParentConfig\nIndentWidth: 7")));
1420   // Make sure we do not use the fallback style
1421   Style9 = getStyle("file", "/e/withoutbase/code.cpp", "google", "", &FS);
1422   ASSERT_TRUE(static_cast<bool>(Style9));
1423   ASSERT_EQ(*Style9, [] {
1424     auto Style = getLLVMStyle();
1425     Style.ColumnLimit = 123;
1426     return Style;
1427   }());
1428 
1429   Style9 = getStyle("file", "/e/withoutbase/sub/code.cpp", "google", "", &FS);
1430   ASSERT_TRUE(static_cast<bool>(Style9));
1431   ASSERT_EQ(*Style9, [] {
1432     auto Style = getLLVMStyle();
1433     Style.ColumnLimit = 123;
1434     Style.IndentWidth = 7;
1435     return Style;
1436   }());
1437 
1438   // Test 9.9: use inheritance from a specific config file.
1439   Style9 = getStyle("file:/e/sub/sub/.clang-format", "/e/sub/sub/code.cpp",
1440                     "none", "", &FS);
1441   ASSERT_TRUE(static_cast<bool>(Style9));
1442   ASSERT_EQ(*Style9, SubSubStyle);
1443 }
1444 
1445 TEST(ConfigParseTest, GetStyleOfSpecificFile) {
1446   llvm::vfs::InMemoryFileSystem FS;
1447   // Specify absolute path to a format file in a parent directory.
1448   ASSERT_TRUE(
1449       FS.addFile("/e/.clang-format", 0,
1450                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1451   ASSERT_TRUE(
1452       FS.addFile("/e/explicit.clang-format", 0,
1453                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1454   ASSERT_TRUE(FS.addFile("/e/sub/sub/sub/test.cpp", 0,
1455                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1456   auto Style = getStyle("file:/e/explicit.clang-format",
1457                         "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1458   ASSERT_TRUE(static_cast<bool>(Style));
1459   ASSERT_EQ(*Style, getGoogleStyle());
1460 
1461   // Specify relative path to a format file.
1462   ASSERT_TRUE(
1463       FS.addFile("../../e/explicit.clang-format", 0,
1464                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1465   Style = getStyle("file:../../e/explicit.clang-format",
1466                    "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1467   ASSERT_TRUE(static_cast<bool>(Style));
1468   ASSERT_EQ(*Style, getGoogleStyle());
1469 
1470   // Specify path to a format file that does not exist.
1471   Style = getStyle("file:/e/missing.clang-format", "/e/sub/sub/sub/test.cpp",
1472                    "LLVM", "", &FS);
1473   ASSERT_FALSE(static_cast<bool>(Style));
1474   llvm::consumeError(Style.takeError());
1475 
1476   // Specify path to a file on the filesystem.
1477   SmallString<128> FormatFilePath;
1478   std::error_code ECF = llvm::sys::fs::createTemporaryFile(
1479       "FormatFileTest", "tpl", FormatFilePath);
1480   EXPECT_FALSE((bool)ECF);
1481   llvm::raw_fd_ostream FormatFileTest(FormatFilePath, ECF);
1482   EXPECT_FALSE((bool)ECF);
1483   FormatFileTest << "BasedOnStyle: Google\n";
1484   FormatFileTest.close();
1485 
1486   SmallString<128> TestFilePath;
1487   std::error_code ECT =
1488       llvm::sys::fs::createTemporaryFile("CodeFileTest", "cc", TestFilePath);
1489   EXPECT_FALSE((bool)ECT);
1490   llvm::raw_fd_ostream CodeFileTest(TestFilePath, ECT);
1491   CodeFileTest << "int i;\n";
1492   CodeFileTest.close();
1493 
1494   std::string format_file_arg = std::string("file:") + FormatFilePath.c_str();
1495   Style = getStyle(format_file_arg, TestFilePath, "LLVM", "", nullptr);
1496 
1497   llvm::sys::fs::remove(FormatFilePath.c_str());
1498   llvm::sys::fs::remove(TestFilePath.c_str());
1499   ASSERT_TRUE(static_cast<bool>(Style));
1500   ASSERT_EQ(*Style, getGoogleStyle());
1501 }
1502 
1503 TEST(ConfigParseTest, GetStyleOutput) {
1504   llvm::vfs::InMemoryFileSystem FS;
1505 
1506   // Don't suppress output.
1507   testing::internal::CaptureStderr();
1508   auto Style = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS,
1509                         /*AllowUnknownOptions=*/true);
1510   auto Output = testing::internal::GetCapturedStderr();
1511   ASSERT_TRUE((bool)Style);
1512   ASSERT_FALSE(Output.empty());
1513 
1514   // Suppress stderr.
1515   testing::internal::CaptureStderr();
1516   Style = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS,
1517                    /*AllowUnknownOptions=*/true, dropDiagnosticHandler);
1518   Output = testing::internal::GetCapturedStderr();
1519   ASSERT_TRUE((bool)Style);
1520   ASSERT_TRUE(Output.empty());
1521 }
1522 
1523 } // namespace
1524 } // namespace format
1525 } // namespace clang
1526