xref: /llvm-project/clang/unittests/Format/ConfigParseTest.cpp (revision 2bcfff6708d293abab87a4d5a1dff25950d55d91)
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 FormatStyle getGoogleStyle() { return getGoogleStyle(FormatStyle::LK_Cpp); }
19 
20 #define EXPECT_ALL_STYLES_EQUAL(Styles)                                        \
21   for (size_t i = 1; i < Styles.size(); ++i)                                   \
22   EXPECT_EQ(Styles[0], Styles[i])                                              \
23       << "Style #" << i << " of " << Styles.size() << " differs from Style #0"
24 
25 TEST(ConfigParseTest, GetsPredefinedStyleByName) {
26   SmallVector<FormatStyle, 3> Styles;
27   Styles.resize(3);
28 
29   Styles[0] = getLLVMStyle();
30   EXPECT_TRUE(getPredefinedStyle("LLVM", FormatStyle::LK_Cpp, &Styles[1]));
31   EXPECT_TRUE(getPredefinedStyle("lLvM", FormatStyle::LK_Cpp, &Styles[2]));
32   EXPECT_ALL_STYLES_EQUAL(Styles);
33 
34   Styles[0] = getGoogleStyle();
35   EXPECT_TRUE(getPredefinedStyle("Google", FormatStyle::LK_Cpp, &Styles[1]));
36   EXPECT_TRUE(getPredefinedStyle("gOOgle", FormatStyle::LK_Cpp, &Styles[2]));
37   EXPECT_ALL_STYLES_EQUAL(Styles);
38 
39   Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript);
40   EXPECT_TRUE(
41       getPredefinedStyle("Google", FormatStyle::LK_JavaScript, &Styles[1]));
42   EXPECT_TRUE(
43       getPredefinedStyle("gOOgle", FormatStyle::LK_JavaScript, &Styles[2]));
44   EXPECT_ALL_STYLES_EQUAL(Styles);
45 
46   Styles[0] = getChromiumStyle(FormatStyle::LK_Cpp);
47   EXPECT_TRUE(getPredefinedStyle("Chromium", FormatStyle::LK_Cpp, &Styles[1]));
48   EXPECT_TRUE(getPredefinedStyle("cHRoMiUM", FormatStyle::LK_Cpp, &Styles[2]));
49   EXPECT_ALL_STYLES_EQUAL(Styles);
50 
51   Styles[0] = getMozillaStyle();
52   EXPECT_TRUE(getPredefinedStyle("Mozilla", FormatStyle::LK_Cpp, &Styles[1]));
53   EXPECT_TRUE(getPredefinedStyle("moZILla", FormatStyle::LK_Cpp, &Styles[2]));
54   EXPECT_ALL_STYLES_EQUAL(Styles);
55 
56   Styles[0] = getWebKitStyle();
57   EXPECT_TRUE(getPredefinedStyle("WebKit", FormatStyle::LK_Cpp, &Styles[1]));
58   EXPECT_TRUE(getPredefinedStyle("wEbKit", FormatStyle::LK_Cpp, &Styles[2]));
59   EXPECT_ALL_STYLES_EQUAL(Styles);
60 
61   Styles[0] = getGNUStyle();
62   EXPECT_TRUE(getPredefinedStyle("GNU", FormatStyle::LK_Cpp, &Styles[1]));
63   EXPECT_TRUE(getPredefinedStyle("gnU", FormatStyle::LK_Cpp, &Styles[2]));
64   EXPECT_ALL_STYLES_EQUAL(Styles);
65 
66   EXPECT_FALSE(getPredefinedStyle("qwerty", FormatStyle::LK_Cpp, &Styles[0]));
67 }
68 
69 TEST(ConfigParseTest, GetsCorrectBasedOnStyle) {
70   SmallVector<FormatStyle, 8> Styles;
71   Styles.resize(2);
72 
73   Styles[0] = getGoogleStyle();
74   Styles[1] = getLLVMStyle();
75   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value());
76   EXPECT_ALL_STYLES_EQUAL(Styles);
77 
78   Styles.resize(5);
79   Styles[0] = getGoogleStyle(FormatStyle::LK_JavaScript);
80   Styles[1] = getLLVMStyle();
81   Styles[1].Language = FormatStyle::LK_JavaScript;
82   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Styles[1]).value());
83 
84   Styles[2] = getLLVMStyle();
85   Styles[2].Language = FormatStyle::LK_JavaScript;
86   EXPECT_EQ(0, parseConfiguration("Language: JavaScript\n"
87                                   "BasedOnStyle: Google",
88                                   &Styles[2])
89                    .value());
90 
91   Styles[3] = getLLVMStyle();
92   Styles[3].Language = FormatStyle::LK_JavaScript;
93   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google\n"
94                                   "Language: JavaScript",
95                                   &Styles[3])
96                    .value());
97 
98   Styles[4] = getLLVMStyle();
99   Styles[4].Language = FormatStyle::LK_JavaScript;
100   EXPECT_EQ(0, parseConfiguration("---\n"
101                                   "BasedOnStyle: LLVM\n"
102                                   "IndentWidth: 123\n"
103                                   "---\n"
104                                   "BasedOnStyle: Google\n"
105                                   "Language: JavaScript",
106                                   &Styles[4])
107                    .value());
108   EXPECT_ALL_STYLES_EQUAL(Styles);
109 }
110 
111 #define CHECK_PARSE_BOOL_FIELD(FIELD, CONFIG_NAME)                             \
112   Style.FIELD = false;                                                         \
113   EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": true", &Style).value());      \
114   EXPECT_TRUE(Style.FIELD);                                                    \
115   EXPECT_EQ(0, parseConfiguration(CONFIG_NAME ": false", &Style).value());     \
116   EXPECT_FALSE(Style.FIELD)
117 
118 #define CHECK_PARSE_BOOL(FIELD) CHECK_PARSE_BOOL_FIELD(FIELD, #FIELD)
119 
120 #define CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, CONFIG_NAME)              \
121   Style.STRUCT.FIELD = false;                                                  \
122   EXPECT_EQ(0,                                                                 \
123             parseConfiguration(#STRUCT ":\n  " CONFIG_NAME ": true", &Style)   \
124                 .value());                                                     \
125   EXPECT_TRUE(Style.STRUCT.FIELD);                                             \
126   EXPECT_EQ(0,                                                                 \
127             parseConfiguration(#STRUCT ":\n  " CONFIG_NAME ": false", &Style)  \
128                 .value());                                                     \
129   EXPECT_FALSE(Style.STRUCT.FIELD)
130 
131 #define CHECK_PARSE_NESTED_BOOL(STRUCT, FIELD)                                 \
132   CHECK_PARSE_NESTED_BOOL_FIELD(STRUCT, FIELD, #FIELD)
133 
134 #define CHECK_PARSE(TEXT, FIELD, VALUE)                                        \
135   EXPECT_NE(VALUE, Style.FIELD) << "Initial value already the same!";          \
136   EXPECT_EQ(0, parseConfiguration(TEXT, &Style).value());                      \
137   EXPECT_EQ(VALUE, Style.FIELD) << "Unexpected value after parsing!"
138 
139 #define CHECK_PARSE_NESTED_VALUE(TEXT, STRUCT, FIELD, VALUE)                   \
140   EXPECT_NE(VALUE, Style.STRUCT.FIELD) << "Initial value already the same!";   \
141   EXPECT_EQ(0, parseConfiguration(#STRUCT ":\n  " TEXT, &Style).value());      \
142   EXPECT_EQ(VALUE, Style.STRUCT.FIELD) << "Unexpected value after parsing!"
143 
144 TEST(ConfigParseTest, ParsesConfigurationBools) {
145   FormatStyle Style = {};
146   Style.Language = FormatStyle::LK_Cpp;
147   CHECK_PARSE_BOOL(AllowAllArgumentsOnNextLine);
148   CHECK_PARSE_BOOL(AllowAllParametersOfDeclarationOnNextLine);
149   CHECK_PARSE_BOOL(AllowShortCaseLabelsOnASingleLine);
150   CHECK_PARSE_BOOL(AllowShortEnumsOnASingleLine);
151   CHECK_PARSE_BOOL(AllowShortLoopsOnASingleLine);
152   CHECK_PARSE_BOOL(BinPackArguments);
153   CHECK_PARSE_BOOL(BinPackParameters);
154   CHECK_PARSE_BOOL(BreakAfterJavaFieldAnnotations);
155   CHECK_PARSE_BOOL(BreakBeforeTernaryOperators);
156   CHECK_PARSE_BOOL(BreakStringLiterals);
157   CHECK_PARSE_BOOL(CompactNamespaces);
158   CHECK_PARSE_BOOL(DerivePointerAlignment);
159   CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding");
160   CHECK_PARSE_BOOL(DisableFormat);
161   CHECK_PARSE_BOOL(IndentAccessModifiers);
162   CHECK_PARSE_BOOL(IndentCaseLabels);
163   CHECK_PARSE_BOOL(IndentCaseBlocks);
164   CHECK_PARSE_BOOL(IndentGotoLabels);
165   CHECK_PARSE_BOOL_FIELD(IndentRequiresClause, "IndentRequires");
166   CHECK_PARSE_BOOL(IndentRequiresClause);
167   CHECK_PARSE_BOOL(IndentWrappedFunctionNames);
168   CHECK_PARSE_BOOL(InsertBraces);
169   CHECK_PARSE_BOOL(InsertNewlineAtEOF);
170   CHECK_PARSE_BOOL(KeepEmptyLinesAtTheStartOfBlocks);
171   CHECK_PARSE_BOOL(ObjCSpaceAfterProperty);
172   CHECK_PARSE_BOOL(ObjCSpaceBeforeProtocolList);
173   CHECK_PARSE_BOOL(Cpp11BracedListStyle);
174   CHECK_PARSE_BOOL(ReflowComments);
175   CHECK_PARSE_BOOL(RemoveBracesLLVM);
176   CHECK_PARSE_BOOL(RemoveSemicolon);
177   CHECK_PARSE_BOOL(SpacesInParentheses);
178   CHECK_PARSE_BOOL(SpacesInSquareBrackets);
179   CHECK_PARSE_BOOL(SpacesInConditionalStatement);
180   CHECK_PARSE_BOOL(SpaceInEmptyBlock);
181   CHECK_PARSE_BOOL(SpaceInEmptyParentheses);
182   CHECK_PARSE_BOOL(SpacesInContainerLiterals);
183   CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses);
184   CHECK_PARSE_BOOL(SpaceAfterCStyleCast);
185   CHECK_PARSE_BOOL(SpaceAfterTemplateKeyword);
186   CHECK_PARSE_BOOL(SpaceAfterLogicalNot);
187   CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators);
188   CHECK_PARSE_BOOL(SpaceBeforeCaseColon);
189   CHECK_PARSE_BOOL(SpaceBeforeCpp11BracedList);
190   CHECK_PARSE_BOOL(SpaceBeforeCtorInitializerColon);
191   CHECK_PARSE_BOOL(SpaceBeforeInheritanceColon);
192   CHECK_PARSE_BOOL(SpaceBeforeJsonColon);
193   CHECK_PARSE_BOOL(SpaceBeforeRangeBasedForLoopColon);
194   CHECK_PARSE_BOOL(SpaceBeforeSquareBrackets);
195   CHECK_PARSE_BOOL(VerilogBreakBetweenInstancePorts);
196 
197   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterCaseLabel);
198   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass);
199   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum);
200   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction);
201   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace);
202   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration);
203   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct);
204   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion);
205   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterExternBlock);
206   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch);
207   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse);
208   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeLambdaBody);
209   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeWhile);
210   CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces);
211   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyFunction);
212   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyRecord);
213   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyNamespace);
214   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterControlStatements);
215   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterForeachMacros);
216   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions,
217                           AfterFunctionDeclarationName);
218   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions,
219                           AfterFunctionDefinitionName);
220   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterIfMacros);
221   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterOverloadedOperator);
222   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, BeforeNonEmptyParentheses);
223 }
224 
225 #undef CHECK_PARSE_BOOL
226 
227 TEST(ConfigParseTest, ParsesConfiguration) {
228   FormatStyle Style = {};
229   Style.Language = FormatStyle::LK_Cpp;
230   CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234);
231   CHECK_PARSE("ConstructorInitializerIndentWidth: 1234",
232               ConstructorInitializerIndentWidth, 1234u);
233   CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u);
234   CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u);
235   CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u);
236   CHECK_PARSE("PenaltyBreakAssignment: 1234", PenaltyBreakAssignment, 1234u);
237   CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234",
238               PenaltyBreakBeforeFirstCallParameter, 1234u);
239   CHECK_PARSE("PenaltyBreakTemplateDeclaration: 1234",
240               PenaltyBreakTemplateDeclaration, 1234u);
241   CHECK_PARSE("PenaltyBreakOpenParenthesis: 1234", PenaltyBreakOpenParenthesis,
242               1234u);
243   CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u);
244   CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234",
245               PenaltyReturnTypeOnItsOwnLine, 1234u);
246   CHECK_PARSE("SpacesBeforeTrailingComments: 1234",
247               SpacesBeforeTrailingComments, 1234u);
248   CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u);
249   CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u);
250   CHECK_PARSE("CommentPragmas: '// abc$'", CommentPragmas, "// abc$");
251 
252   Style.QualifierAlignment = FormatStyle::QAS_Right;
253   CHECK_PARSE("QualifierAlignment: Leave", QualifierAlignment,
254               FormatStyle::QAS_Leave);
255   CHECK_PARSE("QualifierAlignment: Right", QualifierAlignment,
256               FormatStyle::QAS_Right);
257   CHECK_PARSE("QualifierAlignment: Left", QualifierAlignment,
258               FormatStyle::QAS_Left);
259   CHECK_PARSE("QualifierAlignment: Custom", QualifierAlignment,
260               FormatStyle::QAS_Custom);
261 
262   Style.QualifierOrder.clear();
263   CHECK_PARSE("QualifierOrder: [ const, volatile, type ]", QualifierOrder,
264               std::vector<std::string>({"const", "volatile", "type"}));
265   Style.QualifierOrder.clear();
266   CHECK_PARSE("QualifierOrder: [const, type]", QualifierOrder,
267               std::vector<std::string>({"const", "type"}));
268   Style.QualifierOrder.clear();
269   CHECK_PARSE("QualifierOrder: [volatile, type]", QualifierOrder,
270               std::vector<std::string>({"volatile", "type"}));
271 
272 #define CHECK_ALIGN_CONSECUTIVE(FIELD)                                         \
273   do {                                                                         \
274     Style.FIELD.Enabled = true;                                                \
275     CHECK_PARSE(#FIELD ": None", FIELD,                                        \
276                 FormatStyle::AlignConsecutiveStyle(                            \
277                     {/*Enabled=*/false, /*AcrossEmptyLines=*/false,            \
278                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
279                      /*PadOperators=*/true}));                                 \
280     CHECK_PARSE(#FIELD ": Consecutive", FIELD,                                 \
281                 FormatStyle::AlignConsecutiveStyle(                            \
282                     {/*Enabled=*/true, /*AcrossEmptyLines=*/false,             \
283                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
284                      /*PadOperators=*/true}));                                 \
285     CHECK_PARSE(#FIELD ": AcrossEmptyLines", FIELD,                            \
286                 FormatStyle::AlignConsecutiveStyle(                            \
287                     {/*Enabled=*/true, /*AcrossEmptyLines=*/true,              \
288                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
289                      /*PadOperators=*/true}));                                 \
290     CHECK_PARSE(#FIELD ": AcrossEmptyLinesAndComments", FIELD,                 \
291                 FormatStyle::AlignConsecutiveStyle(                            \
292                     {/*Enabled=*/true, /*AcrossEmptyLines=*/true,              \
293                      /*AcrossComments=*/true, /*AlignCompound=*/false,         \
294                      /*PadOperators=*/true}));                                 \
295     /* For backwards compability, false / true should still parse */           \
296     CHECK_PARSE(#FIELD ": false", FIELD,                                       \
297                 FormatStyle::AlignConsecutiveStyle(                            \
298                     {/*Enabled=*/false, /*AcrossEmptyLines=*/false,            \
299                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
300                      /*PadOperators=*/true}));                                 \
301     CHECK_PARSE(#FIELD ": true", FIELD,                                        \
302                 FormatStyle::AlignConsecutiveStyle(                            \
303                     {/*Enabled=*/true, /*AcrossEmptyLines=*/false,             \
304                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
305                      /*PadOperators=*/true}));                                 \
306                                                                                \
307     CHECK_PARSE_NESTED_BOOL(FIELD, Enabled);                                   \
308     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossEmptyLines);                          \
309     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossComments);                            \
310     CHECK_PARSE_NESTED_BOOL(FIELD, AlignCompound);                             \
311     CHECK_PARSE_NESTED_BOOL(FIELD, PadOperators);                              \
312   } while (false)
313 
314   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveAssignments);
315   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveBitFields);
316   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveMacros);
317   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveDeclarations);
318 
319 #undef CHECK_ALIGN_CONSECUTIVE
320 
321   Style.PointerAlignment = FormatStyle::PAS_Middle;
322   CHECK_PARSE("PointerAlignment: Left", PointerAlignment,
323               FormatStyle::PAS_Left);
324   CHECK_PARSE("PointerAlignment: Right", PointerAlignment,
325               FormatStyle::PAS_Right);
326   CHECK_PARSE("PointerAlignment: Middle", PointerAlignment,
327               FormatStyle::PAS_Middle);
328   Style.ReferenceAlignment = FormatStyle::RAS_Middle;
329   CHECK_PARSE("ReferenceAlignment: Pointer", ReferenceAlignment,
330               FormatStyle::RAS_Pointer);
331   CHECK_PARSE("ReferenceAlignment: Left", ReferenceAlignment,
332               FormatStyle::RAS_Left);
333   CHECK_PARSE("ReferenceAlignment: Right", ReferenceAlignment,
334               FormatStyle::RAS_Right);
335   CHECK_PARSE("ReferenceAlignment: Middle", ReferenceAlignment,
336               FormatStyle::RAS_Middle);
337   // For backward compatibility:
338   CHECK_PARSE("PointerBindsToType: Left", PointerAlignment,
339               FormatStyle::PAS_Left);
340   CHECK_PARSE("PointerBindsToType: Right", PointerAlignment,
341               FormatStyle::PAS_Right);
342   CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment,
343               FormatStyle::PAS_Middle);
344 
345   Style.Standard = FormatStyle::LS_Auto;
346   CHECK_PARSE("Standard: c++03", Standard, FormatStyle::LS_Cpp03);
347   CHECK_PARSE("Standard: c++11", Standard, FormatStyle::LS_Cpp11);
348   CHECK_PARSE("Standard: c++14", Standard, FormatStyle::LS_Cpp14);
349   CHECK_PARSE("Standard: c++17", Standard, FormatStyle::LS_Cpp17);
350   CHECK_PARSE("Standard: c++20", Standard, FormatStyle::LS_Cpp20);
351   CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto);
352   CHECK_PARSE("Standard: Latest", Standard, FormatStyle::LS_Latest);
353   // Legacy aliases:
354   CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03);
355   CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Latest);
356   CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03);
357   CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11);
358 
359   Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
360   CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment",
361               BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment);
362   CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators,
363               FormatStyle::BOS_None);
364   CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators,
365               FormatStyle::BOS_All);
366   // For backward compatibility:
367   CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators,
368               FormatStyle::BOS_None);
369   CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators,
370               FormatStyle::BOS_All);
371 
372   Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
373   CHECK_PARSE("BreakConstructorInitializers: BeforeComma",
374               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
375   CHECK_PARSE("BreakConstructorInitializers: AfterColon",
376               BreakConstructorInitializers, FormatStyle::BCIS_AfterColon);
377   CHECK_PARSE("BreakConstructorInitializers: BeforeColon",
378               BreakConstructorInitializers, FormatStyle::BCIS_BeforeColon);
379   // For backward compatibility:
380   CHECK_PARSE("BreakConstructorInitializersBeforeComma: true",
381               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
382 
383   Style.BreakInheritanceList = FormatStyle::BILS_BeforeColon;
384   CHECK_PARSE("BreakInheritanceList: AfterComma", BreakInheritanceList,
385               FormatStyle::BILS_AfterComma);
386   CHECK_PARSE("BreakInheritanceList: BeforeComma", BreakInheritanceList,
387               FormatStyle::BILS_BeforeComma);
388   CHECK_PARSE("BreakInheritanceList: AfterColon", BreakInheritanceList,
389               FormatStyle::BILS_AfterColon);
390   CHECK_PARSE("BreakInheritanceList: BeforeColon", BreakInheritanceList,
391               FormatStyle::BILS_BeforeColon);
392   // For backward compatibility:
393   CHECK_PARSE("BreakBeforeInheritanceComma: true", BreakInheritanceList,
394               FormatStyle::BILS_BeforeComma);
395 
396   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
397   CHECK_PARSE("PackConstructorInitializers: Never", PackConstructorInitializers,
398               FormatStyle::PCIS_Never);
399   CHECK_PARSE("PackConstructorInitializers: BinPack",
400               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
401   CHECK_PARSE("PackConstructorInitializers: CurrentLine",
402               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
403   CHECK_PARSE("PackConstructorInitializers: NextLine",
404               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
405   CHECK_PARSE("PackConstructorInitializers: NextLineOnly",
406               PackConstructorInitializers, FormatStyle::PCIS_NextLineOnly);
407   // For backward compatibility:
408   CHECK_PARSE("BasedOnStyle: Google\n"
409               "ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
410               "AllowAllConstructorInitializersOnNextLine: false",
411               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
412   Style.PackConstructorInitializers = FormatStyle::PCIS_NextLine;
413   CHECK_PARSE("BasedOnStyle: Google\n"
414               "ConstructorInitializerAllOnOneLineOrOnePerLine: false",
415               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
416   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
417               "AllowAllConstructorInitializersOnNextLine: true",
418               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
419   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
420   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
421               "AllowAllConstructorInitializersOnNextLine: false",
422               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
423 
424   Style.EmptyLineBeforeAccessModifier = FormatStyle::ELBAMS_LogicalBlock;
425   CHECK_PARSE("EmptyLineBeforeAccessModifier: Never",
426               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Never);
427   CHECK_PARSE("EmptyLineBeforeAccessModifier: Leave",
428               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Leave);
429   CHECK_PARSE("EmptyLineBeforeAccessModifier: LogicalBlock",
430               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_LogicalBlock);
431   CHECK_PARSE("EmptyLineBeforeAccessModifier: Always",
432               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Always);
433 
434   Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
435   CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket,
436               FormatStyle::BAS_Align);
437   CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket,
438               FormatStyle::BAS_DontAlign);
439   CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket,
440               FormatStyle::BAS_AlwaysBreak);
441   CHECK_PARSE("AlignAfterOpenBracket: BlockIndent", AlignAfterOpenBracket,
442               FormatStyle::BAS_BlockIndent);
443   // For backward compatibility:
444   CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket,
445               FormatStyle::BAS_DontAlign);
446   CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket,
447               FormatStyle::BAS_Align);
448 
449   Style.AlignEscapedNewlines = FormatStyle::ENAS_Left;
450   CHECK_PARSE("AlignEscapedNewlines: DontAlign", AlignEscapedNewlines,
451               FormatStyle::ENAS_DontAlign);
452   CHECK_PARSE("AlignEscapedNewlines: Left", AlignEscapedNewlines,
453               FormatStyle::ENAS_Left);
454   CHECK_PARSE("AlignEscapedNewlines: Right", AlignEscapedNewlines,
455               FormatStyle::ENAS_Right);
456   // For backward compatibility:
457   CHECK_PARSE("AlignEscapedNewlinesLeft: true", AlignEscapedNewlines,
458               FormatStyle::ENAS_Left);
459   CHECK_PARSE("AlignEscapedNewlinesLeft: false", AlignEscapedNewlines,
460               FormatStyle::ENAS_Right);
461 
462   Style.AlignOperands = FormatStyle::OAS_Align;
463   CHECK_PARSE("AlignOperands: DontAlign", AlignOperands,
464               FormatStyle::OAS_DontAlign);
465   CHECK_PARSE("AlignOperands: Align", AlignOperands, FormatStyle::OAS_Align);
466   CHECK_PARSE("AlignOperands: AlignAfterOperator", AlignOperands,
467               FormatStyle::OAS_AlignAfterOperator);
468   // For backward compatibility:
469   CHECK_PARSE("AlignOperands: false", AlignOperands,
470               FormatStyle::OAS_DontAlign);
471   CHECK_PARSE("AlignOperands: true", AlignOperands, FormatStyle::OAS_Align);
472 
473   CHECK_PARSE("AlignTrailingComments: Leave", AlignTrailingComments,
474               FormatStyle::TrailingCommentsAlignmentStyle(
475                   {FormatStyle::TCAS_Leave, 0}));
476   CHECK_PARSE("AlignTrailingComments: Always", AlignTrailingComments,
477               FormatStyle::TrailingCommentsAlignmentStyle(
478                   {FormatStyle::TCAS_Always, 0}));
479   CHECK_PARSE("AlignTrailingComments: Never", AlignTrailingComments,
480               FormatStyle::TrailingCommentsAlignmentStyle(
481                   {FormatStyle::TCAS_Never, 0}));
482   // For backwards compatibility
483   CHECK_PARSE("AlignTrailingComments: true", AlignTrailingComments,
484               FormatStyle::TrailingCommentsAlignmentStyle(
485                   {FormatStyle::TCAS_Always, 0}));
486   CHECK_PARSE("AlignTrailingComments: false", AlignTrailingComments,
487               FormatStyle::TrailingCommentsAlignmentStyle(
488                   {FormatStyle::TCAS_Never, 0}));
489   CHECK_PARSE_NESTED_VALUE("Kind: Always", AlignTrailingComments, Kind,
490                            FormatStyle::TCAS_Always);
491   CHECK_PARSE_NESTED_VALUE("Kind: Never", AlignTrailingComments, Kind,
492                            FormatStyle::TCAS_Never);
493   CHECK_PARSE_NESTED_VALUE("Kind: Leave", AlignTrailingComments, Kind,
494                            FormatStyle::TCAS_Leave);
495   CHECK_PARSE_NESTED_VALUE("OverEmptyLines: 1234", AlignTrailingComments,
496                            OverEmptyLines, 1234u);
497 
498   Style.UseTab = FormatStyle::UT_ForIndentation;
499   CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never);
500   CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation);
501   CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always);
502   CHECK_PARSE("UseTab: ForContinuationAndIndentation", UseTab,
503               FormatStyle::UT_ForContinuationAndIndentation);
504   CHECK_PARSE("UseTab: AlignWithSpaces", UseTab,
505               FormatStyle::UT_AlignWithSpaces);
506   // For backward compatibility:
507   CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never);
508   CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always);
509 
510   Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Empty;
511   CHECK_PARSE("AllowShortBlocksOnASingleLine: Never",
512               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
513   CHECK_PARSE("AllowShortBlocksOnASingleLine: Empty",
514               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Empty);
515   CHECK_PARSE("AllowShortBlocksOnASingleLine: Always",
516               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
517   // For backward compatibility:
518   CHECK_PARSE("AllowShortBlocksOnASingleLine: false",
519               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
520   CHECK_PARSE("AllowShortBlocksOnASingleLine: true",
521               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
522 
523   Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
524   CHECK_PARSE("AllowShortFunctionsOnASingleLine: None",
525               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
526   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline",
527               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline);
528   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty",
529               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty);
530   CHECK_PARSE("AllowShortFunctionsOnASingleLine: All",
531               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
532   // For backward compatibility:
533   CHECK_PARSE("AllowShortFunctionsOnASingleLine: false",
534               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
535   CHECK_PARSE("AllowShortFunctionsOnASingleLine: true",
536               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
537 
538   Style.AllowShortLambdasOnASingleLine = FormatStyle::SLS_All;
539   CHECK_PARSE("AllowShortLambdasOnASingleLine: None",
540               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
541   CHECK_PARSE("AllowShortLambdasOnASingleLine: Empty",
542               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Empty);
543   CHECK_PARSE("AllowShortLambdasOnASingleLine: Inline",
544               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Inline);
545   CHECK_PARSE("AllowShortLambdasOnASingleLine: All",
546               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
547   // For backward compatibility:
548   CHECK_PARSE("AllowShortLambdasOnASingleLine: false",
549               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
550   CHECK_PARSE("AllowShortLambdasOnASingleLine: true",
551               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
552 
553   Style.SpaceAroundPointerQualifiers = FormatStyle::SAPQ_Both;
554   CHECK_PARSE("SpaceAroundPointerQualifiers: Default",
555               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Default);
556   CHECK_PARSE("SpaceAroundPointerQualifiers: Before",
557               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Before);
558   CHECK_PARSE("SpaceAroundPointerQualifiers: After",
559               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_After);
560   CHECK_PARSE("SpaceAroundPointerQualifiers: Both",
561               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Both);
562 
563   Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
564   CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens,
565               FormatStyle::SBPO_Never);
566   CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens,
567               FormatStyle::SBPO_Always);
568   CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens,
569               FormatStyle::SBPO_ControlStatements);
570   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptControlMacros",
571               SpaceBeforeParens,
572               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
573   CHECK_PARSE("SpaceBeforeParens: NonEmptyParentheses", SpaceBeforeParens,
574               FormatStyle::SBPO_NonEmptyParentheses);
575   CHECK_PARSE("SpaceBeforeParens: Custom", SpaceBeforeParens,
576               FormatStyle::SBPO_Custom);
577   // For backward compatibility:
578   CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens,
579               FormatStyle::SBPO_Never);
580   CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens,
581               FormatStyle::SBPO_ControlStatements);
582   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptForEachMacros",
583               SpaceBeforeParens,
584               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
585 
586   Style.ColumnLimit = 123;
587   FormatStyle BaseStyle = getLLVMStyle();
588   CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit);
589   CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u);
590 
591   Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
592   CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces,
593               FormatStyle::BS_Attach);
594   CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces,
595               FormatStyle::BS_Linux);
596   CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces,
597               FormatStyle::BS_Mozilla);
598   CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces,
599               FormatStyle::BS_Stroustrup);
600   CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces,
601               FormatStyle::BS_Allman);
602   CHECK_PARSE("BreakBeforeBraces: Whitesmiths", BreakBeforeBraces,
603               FormatStyle::BS_Whitesmiths);
604   CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU);
605   CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces,
606               FormatStyle::BS_WebKit);
607   CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces,
608               FormatStyle::BS_Custom);
609 
610   Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Never;
611   CHECK_PARSE("BraceWrapping:\n"
612               "  AfterControlStatement: MultiLine",
613               BraceWrapping.AfterControlStatement,
614               FormatStyle::BWACS_MultiLine);
615   CHECK_PARSE("BraceWrapping:\n"
616               "  AfterControlStatement: Always",
617               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
618   CHECK_PARSE("BraceWrapping:\n"
619               "  AfterControlStatement: Never",
620               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
621   // For backward compatibility:
622   CHECK_PARSE("BraceWrapping:\n"
623               "  AfterControlStatement: true",
624               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
625   CHECK_PARSE("BraceWrapping:\n"
626               "  AfterControlStatement: false",
627               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
628 
629   Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All;
630   CHECK_PARSE("AlwaysBreakAfterReturnType: None", AlwaysBreakAfterReturnType,
631               FormatStyle::RTBS_None);
632   CHECK_PARSE("AlwaysBreakAfterReturnType: All", AlwaysBreakAfterReturnType,
633               FormatStyle::RTBS_All);
634   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel",
635               AlwaysBreakAfterReturnType, FormatStyle::RTBS_TopLevel);
636   CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions",
637               AlwaysBreakAfterReturnType, FormatStyle::RTBS_AllDefinitions);
638   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions",
639               AlwaysBreakAfterReturnType,
640               FormatStyle::RTBS_TopLevelDefinitions);
641 
642   Style.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_Yes;
643   CHECK_PARSE("AlwaysBreakTemplateDeclarations: No",
644               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_No);
645   CHECK_PARSE("AlwaysBreakTemplateDeclarations: MultiLine",
646               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
647   CHECK_PARSE("AlwaysBreakTemplateDeclarations: Yes",
648               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
649   CHECK_PARSE("AlwaysBreakTemplateDeclarations: false",
650               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
651   CHECK_PARSE("AlwaysBreakTemplateDeclarations: true",
652               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
653 
654   Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All;
655   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None",
656               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None);
657   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All",
658               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All);
659   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel",
660               AlwaysBreakAfterDefinitionReturnType,
661               FormatStyle::DRTBS_TopLevel);
662 
663   Style.NamespaceIndentation = FormatStyle::NI_All;
664   CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation,
665               FormatStyle::NI_None);
666   CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation,
667               FormatStyle::NI_Inner);
668   CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation,
669               FormatStyle::NI_All);
670 
671   Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_OnlyFirstIf;
672   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Never",
673               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
674   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: WithoutElse",
675               AllowShortIfStatementsOnASingleLine,
676               FormatStyle::SIS_WithoutElse);
677   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: OnlyFirstIf",
678               AllowShortIfStatementsOnASingleLine,
679               FormatStyle::SIS_OnlyFirstIf);
680   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: AllIfsAndElse",
681               AllowShortIfStatementsOnASingleLine,
682               FormatStyle::SIS_AllIfsAndElse);
683   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Always",
684               AllowShortIfStatementsOnASingleLine,
685               FormatStyle::SIS_OnlyFirstIf);
686   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: false",
687               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
688   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: true",
689               AllowShortIfStatementsOnASingleLine,
690               FormatStyle::SIS_WithoutElse);
691 
692   Style.IndentExternBlock = FormatStyle::IEBS_NoIndent;
693   CHECK_PARSE("IndentExternBlock: AfterExternBlock", IndentExternBlock,
694               FormatStyle::IEBS_AfterExternBlock);
695   CHECK_PARSE("IndentExternBlock: Indent", IndentExternBlock,
696               FormatStyle::IEBS_Indent);
697   CHECK_PARSE("IndentExternBlock: NoIndent", IndentExternBlock,
698               FormatStyle::IEBS_NoIndent);
699   CHECK_PARSE("IndentExternBlock: true", IndentExternBlock,
700               FormatStyle::IEBS_Indent);
701   CHECK_PARSE("IndentExternBlock: false", IndentExternBlock,
702               FormatStyle::IEBS_NoIndent);
703 
704   Style.BitFieldColonSpacing = FormatStyle::BFCS_None;
705   CHECK_PARSE("BitFieldColonSpacing: Both", BitFieldColonSpacing,
706               FormatStyle::BFCS_Both);
707   CHECK_PARSE("BitFieldColonSpacing: None", BitFieldColonSpacing,
708               FormatStyle::BFCS_None);
709   CHECK_PARSE("BitFieldColonSpacing: Before", BitFieldColonSpacing,
710               FormatStyle::BFCS_Before);
711   CHECK_PARSE("BitFieldColonSpacing: After", BitFieldColonSpacing,
712               FormatStyle::BFCS_After);
713 
714   Style.SortJavaStaticImport = FormatStyle::SJSIO_Before;
715   CHECK_PARSE("SortJavaStaticImport: After", SortJavaStaticImport,
716               FormatStyle::SJSIO_After);
717   CHECK_PARSE("SortJavaStaticImport: Before", SortJavaStaticImport,
718               FormatStyle::SJSIO_Before);
719 
720   Style.SortUsingDeclarations = FormatStyle::SUD_LexicographicNumeric;
721   CHECK_PARSE("SortUsingDeclarations: Never", SortUsingDeclarations,
722               FormatStyle::SUD_Never);
723   CHECK_PARSE("SortUsingDeclarations: Lexicographic", SortUsingDeclarations,
724               FormatStyle::SUD_Lexicographic);
725   CHECK_PARSE("SortUsingDeclarations: LexicographicNumeric",
726               SortUsingDeclarations, FormatStyle::SUD_LexicographicNumeric);
727   // For backward compatibility:
728   CHECK_PARSE("SortUsingDeclarations: false", SortUsingDeclarations,
729               FormatStyle::SUD_Never);
730   CHECK_PARSE("SortUsingDeclarations: true", SortUsingDeclarations,
731               FormatStyle::SUD_LexicographicNumeric);
732 
733   // FIXME: This is required because parsing a configuration simply overwrites
734   // the first N elements of the list instead of resetting it.
735   Style.ForEachMacros.clear();
736   std::vector<std::string> BoostForeach;
737   BoostForeach.push_back("BOOST_FOREACH");
738   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach);
739   std::vector<std::string> BoostAndQForeach;
740   BoostAndQForeach.push_back("BOOST_FOREACH");
741   BoostAndQForeach.push_back("Q_FOREACH");
742   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros,
743               BoostAndQForeach);
744 
745   Style.IfMacros.clear();
746   std::vector<std::string> CustomIfs;
747   CustomIfs.push_back("MYIF");
748   CHECK_PARSE("IfMacros: [MYIF]", IfMacros, CustomIfs);
749 
750   Style.AttributeMacros.clear();
751   CHECK_PARSE("BasedOnStyle: LLVM", AttributeMacros,
752               std::vector<std::string>{"__capability"});
753   CHECK_PARSE("AttributeMacros: [attr1, attr2]", AttributeMacros,
754               std::vector<std::string>({"attr1", "attr2"}));
755 
756   Style.StatementAttributeLikeMacros.clear();
757   CHECK_PARSE("StatementAttributeLikeMacros: [emit,Q_EMIT]",
758               StatementAttributeLikeMacros,
759               std::vector<std::string>({"emit", "Q_EMIT"}));
760 
761   Style.StatementMacros.clear();
762   CHECK_PARSE("StatementMacros: [QUNUSED]", StatementMacros,
763               std::vector<std::string>{"QUNUSED"});
764   CHECK_PARSE("StatementMacros: [QUNUSED, QT_REQUIRE_VERSION]", StatementMacros,
765               std::vector<std::string>({"QUNUSED", "QT_REQUIRE_VERSION"}));
766 
767   Style.NamespaceMacros.clear();
768   CHECK_PARSE("NamespaceMacros: [TESTSUITE]", NamespaceMacros,
769               std::vector<std::string>{"TESTSUITE"});
770   CHECK_PARSE("NamespaceMacros: [TESTSUITE, SUITE]", NamespaceMacros,
771               std::vector<std::string>({"TESTSUITE", "SUITE"}));
772 
773   Style.WhitespaceSensitiveMacros.clear();
774   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE]",
775               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
776   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE, ASSERT]",
777               WhitespaceSensitiveMacros,
778               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
779   Style.WhitespaceSensitiveMacros.clear();
780   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE']",
781               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
782   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE', 'ASSERT']",
783               WhitespaceSensitiveMacros,
784               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
785 
786   Style.IncludeStyle.IncludeCategories.clear();
787   std::vector<tooling::IncludeStyle::IncludeCategory> ExpectedCategories = {
788       {"abc/.*", 2, 0, false}, {".*", 1, 0, true}};
789   CHECK_PARSE("IncludeCategories:\n"
790               "  - Regex: abc/.*\n"
791               "    Priority: 2\n"
792               "  - Regex: .*\n"
793               "    Priority: 1\n"
794               "    CaseSensitive: true\n",
795               IncludeStyle.IncludeCategories, ExpectedCategories);
796   CHECK_PARSE("IncludeIsMainRegex: 'abc$'", IncludeStyle.IncludeIsMainRegex,
797               "abc$");
798   CHECK_PARSE("IncludeIsMainSourceRegex: 'abc$'",
799               IncludeStyle.IncludeIsMainSourceRegex, "abc$");
800 
801   Style.SortIncludes = FormatStyle::SI_Never;
802   CHECK_PARSE("SortIncludes: true", SortIncludes,
803               FormatStyle::SI_CaseSensitive);
804   CHECK_PARSE("SortIncludes: false", SortIncludes, FormatStyle::SI_Never);
805   CHECK_PARSE("SortIncludes: CaseInsensitive", SortIncludes,
806               FormatStyle::SI_CaseInsensitive);
807   CHECK_PARSE("SortIncludes: CaseSensitive", SortIncludes,
808               FormatStyle::SI_CaseSensitive);
809   CHECK_PARSE("SortIncludes: Never", SortIncludes, FormatStyle::SI_Never);
810 
811   Style.RawStringFormats.clear();
812   std::vector<FormatStyle::RawStringFormat> ExpectedRawStringFormats = {
813       {
814           FormatStyle::LK_TextProto,
815           {"pb", "proto"},
816           {"PARSE_TEXT_PROTO"},
817           /*CanonicalDelimiter=*/"",
818           "llvm",
819       },
820       {
821           FormatStyle::LK_Cpp,
822           {"cc", "cpp"},
823           {"C_CODEBLOCK", "CPPEVAL"},
824           /*CanonicalDelimiter=*/"cc",
825           /*BasedOnStyle=*/"",
826       },
827   };
828 
829   CHECK_PARSE("RawStringFormats:\n"
830               "  - Language: TextProto\n"
831               "    Delimiters:\n"
832               "      - 'pb'\n"
833               "      - 'proto'\n"
834               "    EnclosingFunctions:\n"
835               "      - 'PARSE_TEXT_PROTO'\n"
836               "    BasedOnStyle: llvm\n"
837               "  - Language: Cpp\n"
838               "    Delimiters:\n"
839               "      - 'cc'\n"
840               "      - 'cpp'\n"
841               "    EnclosingFunctions:\n"
842               "      - 'C_CODEBLOCK'\n"
843               "      - 'CPPEVAL'\n"
844               "    CanonicalDelimiter: 'cc'",
845               RawStringFormats, ExpectedRawStringFormats);
846 
847   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
848               "  Minimum: 0\n"
849               "  Maximum: 0",
850               SpacesInLineCommentPrefix.Minimum, 0u);
851   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Maximum, 0u);
852   Style.SpacesInLineCommentPrefix.Minimum = 1;
853   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
854               "  Minimum: 2",
855               SpacesInLineCommentPrefix.Minimum, 0u);
856   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
857               "  Maximum: -1",
858               SpacesInLineCommentPrefix.Maximum, -1u);
859   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
860               "  Minimum: 2",
861               SpacesInLineCommentPrefix.Minimum, 2u);
862   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
863               "  Maximum: 1",
864               SpacesInLineCommentPrefix.Maximum, 1u);
865   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Minimum, 1u);
866 
867   Style.SpacesInAngles = FormatStyle::SIAS_Always;
868   CHECK_PARSE("SpacesInAngles: Never", SpacesInAngles, FormatStyle::SIAS_Never);
869   CHECK_PARSE("SpacesInAngles: Always", SpacesInAngles,
870               FormatStyle::SIAS_Always);
871   CHECK_PARSE("SpacesInAngles: Leave", SpacesInAngles, FormatStyle::SIAS_Leave);
872   // For backward compatibility:
873   CHECK_PARSE("SpacesInAngles: false", SpacesInAngles, FormatStyle::SIAS_Never);
874   CHECK_PARSE("SpacesInAngles: true", SpacesInAngles, FormatStyle::SIAS_Always);
875 
876   CHECK_PARSE("RequiresClausePosition: WithPreceding", RequiresClausePosition,
877               FormatStyle::RCPS_WithPreceding);
878   CHECK_PARSE("RequiresClausePosition: WithFollowing", RequiresClausePosition,
879               FormatStyle::RCPS_WithFollowing);
880   CHECK_PARSE("RequiresClausePosition: SingleLine", RequiresClausePosition,
881               FormatStyle::RCPS_SingleLine);
882   CHECK_PARSE("RequiresClausePosition: OwnLine", RequiresClausePosition,
883               FormatStyle::RCPS_OwnLine);
884 
885   CHECK_PARSE("BreakBeforeConceptDeclarations: Never",
886               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Never);
887   CHECK_PARSE("BreakBeforeConceptDeclarations: Always",
888               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
889   CHECK_PARSE("BreakBeforeConceptDeclarations: Allowed",
890               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
891   // For backward compatibility:
892   CHECK_PARSE("BreakBeforeConceptDeclarations: true",
893               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
894   CHECK_PARSE("BreakBeforeConceptDeclarations: false",
895               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
896 
897   CHECK_PARSE("BreakAfterAttributes: Always", BreakAfterAttributes,
898               FormatStyle::ABS_Always);
899   CHECK_PARSE("BreakAfterAttributes: Leave", BreakAfterAttributes,
900               FormatStyle::ABS_Leave);
901   CHECK_PARSE("BreakAfterAttributes: Never", BreakAfterAttributes,
902               FormatStyle::ABS_Never);
903 
904   const auto DefaultLineEnding = FormatStyle::LE_DeriveLF;
905   CHECK_PARSE("LineEnding: LF", LineEnding, FormatStyle::LE_LF);
906   CHECK_PARSE("LineEnding: CRLF", LineEnding, FormatStyle::LE_CRLF);
907   CHECK_PARSE("LineEnding: DeriveCRLF", LineEnding, FormatStyle::LE_DeriveCRLF);
908   CHECK_PARSE("LineEnding: DeriveLF", LineEnding, DefaultLineEnding);
909   // For backward compatibility:
910   CHECK_PARSE("DeriveLineEnding: false", LineEnding, FormatStyle::LE_LF);
911   Style.LineEnding = DefaultLineEnding;
912   CHECK_PARSE("DeriveLineEnding: false\n"
913               "UseCRLF: true",
914               LineEnding, FormatStyle::LE_CRLF);
915   Style.LineEnding = DefaultLineEnding;
916   CHECK_PARSE("UseCRLF: true", LineEnding, FormatStyle::LE_DeriveCRLF);
917 }
918 
919 TEST(ConfigParseTest, ParsesConfigurationWithLanguages) {
920   FormatStyle Style = {};
921   Style.Language = FormatStyle::LK_Cpp;
922   CHECK_PARSE("Language: Cpp\n"
923               "IndentWidth: 12",
924               IndentWidth, 12u);
925   EXPECT_EQ(parseConfiguration("Language: JavaScript\n"
926                                "IndentWidth: 34",
927                                &Style),
928             ParseError::Unsuitable);
929   FormatStyle BinPackedTCS = {};
930   BinPackedTCS.Language = FormatStyle::LK_JavaScript;
931   EXPECT_EQ(parseConfiguration("BinPackArguments: true\n"
932                                "InsertTrailingCommas: Wrapped",
933                                &BinPackedTCS),
934             ParseError::BinPackTrailingCommaConflict);
935   EXPECT_EQ(12u, Style.IndentWidth);
936   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
937   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
938 
939   Style.Language = FormatStyle::LK_JavaScript;
940   CHECK_PARSE("Language: JavaScript\n"
941               "IndentWidth: 12",
942               IndentWidth, 12u);
943   CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u);
944   EXPECT_EQ(parseConfiguration("Language: Cpp\n"
945                                "IndentWidth: 34",
946                                &Style),
947             ParseError::Unsuitable);
948   EXPECT_EQ(23u, Style.IndentWidth);
949   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
950   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
951 
952   CHECK_PARSE("BasedOnStyle: LLVM\n"
953               "IndentWidth: 67",
954               IndentWidth, 67u);
955 
956   CHECK_PARSE("---\n"
957               "Language: JavaScript\n"
958               "IndentWidth: 12\n"
959               "---\n"
960               "Language: Cpp\n"
961               "IndentWidth: 34\n"
962               "...\n",
963               IndentWidth, 12u);
964 
965   Style.Language = FormatStyle::LK_Cpp;
966   CHECK_PARSE("---\n"
967               "Language: JavaScript\n"
968               "IndentWidth: 12\n"
969               "---\n"
970               "Language: Cpp\n"
971               "IndentWidth: 34\n"
972               "...\n",
973               IndentWidth, 34u);
974   CHECK_PARSE("---\n"
975               "IndentWidth: 78\n"
976               "---\n"
977               "Language: JavaScript\n"
978               "IndentWidth: 56\n"
979               "...\n",
980               IndentWidth, 78u);
981 
982   Style.ColumnLimit = 123;
983   Style.IndentWidth = 234;
984   Style.BreakBeforeBraces = FormatStyle::BS_Linux;
985   Style.TabWidth = 345;
986   EXPECT_FALSE(parseConfiguration("---\n"
987                                   "IndentWidth: 456\n"
988                                   "BreakBeforeBraces: Allman\n"
989                                   "---\n"
990                                   "Language: JavaScript\n"
991                                   "IndentWidth: 111\n"
992                                   "TabWidth: 111\n"
993                                   "---\n"
994                                   "Language: Cpp\n"
995                                   "BreakBeforeBraces: Stroustrup\n"
996                                   "TabWidth: 789\n"
997                                   "...\n",
998                                   &Style));
999   EXPECT_EQ(123u, Style.ColumnLimit);
1000   EXPECT_EQ(456u, Style.IndentWidth);
1001   EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces);
1002   EXPECT_EQ(789u, Style.TabWidth);
1003 
1004   EXPECT_EQ(parseConfiguration("---\n"
1005                                "Language: JavaScript\n"
1006                                "IndentWidth: 56\n"
1007                                "---\n"
1008                                "IndentWidth: 78\n"
1009                                "...\n",
1010                                &Style),
1011             ParseError::Error);
1012   EXPECT_EQ(parseConfiguration("---\n"
1013                                "Language: JavaScript\n"
1014                                "IndentWidth: 56\n"
1015                                "---\n"
1016                                "Language: JavaScript\n"
1017                                "IndentWidth: 78\n"
1018                                "...\n",
1019                                &Style),
1020             ParseError::Error);
1021 
1022   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
1023 }
1024 
1025 TEST(ConfigParseTest, UsesLanguageForBasedOnStyle) {
1026   FormatStyle Style = {};
1027   Style.Language = FormatStyle::LK_JavaScript;
1028   Style.BreakBeforeTernaryOperators = true;
1029   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value());
1030   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1031 
1032   Style.BreakBeforeTernaryOperators = true;
1033   EXPECT_EQ(0, parseConfiguration("---\n"
1034                                   "BasedOnStyle: Google\n"
1035                                   "---\n"
1036                                   "Language: JavaScript\n"
1037                                   "IndentWidth: 76\n"
1038                                   "...\n",
1039                                   &Style)
1040                    .value());
1041   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1042   EXPECT_EQ(76u, Style.IndentWidth);
1043   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
1044 }
1045 
1046 TEST(ConfigParseTest, ConfigurationRoundTripTest) {
1047   FormatStyle Style = getLLVMStyle();
1048   std::string YAML = configurationAsText(Style);
1049   FormatStyle ParsedStyle = {};
1050   ParsedStyle.Language = FormatStyle::LK_Cpp;
1051   EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value());
1052   EXPECT_EQ(Style, ParsedStyle);
1053 }
1054 
1055 TEST(ConfigParseTest, GetStyleWithEmptyFileName) {
1056   llvm::vfs::InMemoryFileSystem FS;
1057   auto Style1 = getStyle("file", "", "Google", "", &FS);
1058   ASSERT_TRUE((bool)Style1);
1059   ASSERT_EQ(*Style1, getGoogleStyle());
1060 }
1061 
1062 TEST(ConfigParseTest, GetStyleOfFile) {
1063   llvm::vfs::InMemoryFileSystem FS;
1064   // Test 1: format file in the same directory.
1065   ASSERT_TRUE(
1066       FS.addFile("/a/.clang-format", 0,
1067                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1068   ASSERT_TRUE(
1069       FS.addFile("/a/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1070   auto Style1 = getStyle("file", "/a/.clang-format", "Google", "", &FS);
1071   ASSERT_TRUE((bool)Style1);
1072   ASSERT_EQ(*Style1, getLLVMStyle());
1073 
1074   // Test 2.1: fallback to default.
1075   ASSERT_TRUE(
1076       FS.addFile("/b/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1077   auto Style2 = getStyle("file", "/b/test.cpp", "Mozilla", "", &FS);
1078   ASSERT_TRUE((bool)Style2);
1079   ASSERT_EQ(*Style2, getMozillaStyle());
1080 
1081   // Test 2.2: no format on 'none' fallback style.
1082   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1083   ASSERT_TRUE((bool)Style2);
1084   ASSERT_EQ(*Style2, getNoStyle());
1085 
1086   // Test 2.3: format if config is found with no based style while fallback is
1087   // 'none'.
1088   ASSERT_TRUE(FS.addFile("/b/.clang-format", 0,
1089                          llvm::MemoryBuffer::getMemBuffer("IndentWidth: 2")));
1090   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1091   ASSERT_TRUE((bool)Style2);
1092   ASSERT_EQ(*Style2, getLLVMStyle());
1093 
1094   // Test 2.4: format if yaml with no based style, while fallback is 'none'.
1095   Style2 = getStyle("{}", "a.h", "none", "", &FS);
1096   ASSERT_TRUE((bool)Style2);
1097   ASSERT_EQ(*Style2, getLLVMStyle());
1098 
1099   // Test 3: format file in parent directory.
1100   ASSERT_TRUE(
1101       FS.addFile("/c/.clang-format", 0,
1102                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1103   ASSERT_TRUE(FS.addFile("/c/sub/sub/sub/test.cpp", 0,
1104                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1105   auto Style3 = getStyle("file", "/c/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1106   ASSERT_TRUE((bool)Style3);
1107   ASSERT_EQ(*Style3, getGoogleStyle());
1108 
1109   // Test 4: error on invalid fallback style
1110   auto Style4 = getStyle("file", "a.h", "KungFu", "", &FS);
1111   ASSERT_FALSE((bool)Style4);
1112   llvm::consumeError(Style4.takeError());
1113 
1114   // Test 5: error on invalid yaml on command line
1115   auto Style5 = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS);
1116   ASSERT_FALSE((bool)Style5);
1117   llvm::consumeError(Style5.takeError());
1118 
1119   // Test 6: error on invalid style
1120   auto Style6 = getStyle("KungFu", "a.h", "LLVM", "", &FS);
1121   ASSERT_FALSE((bool)Style6);
1122   llvm::consumeError(Style6.takeError());
1123 
1124   // Test 7: found config file, error on parsing it
1125   ASSERT_TRUE(
1126       FS.addFile("/d/.clang-format", 0,
1127                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM\n"
1128                                                   "InvalidKey: InvalidValue")));
1129   ASSERT_TRUE(
1130       FS.addFile("/d/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1131   auto Style7a = getStyle("file", "/d/.clang-format", "LLVM", "", &FS);
1132   ASSERT_FALSE((bool)Style7a);
1133   llvm::consumeError(Style7a.takeError());
1134 
1135   auto Style7b = getStyle("file", "/d/.clang-format", "LLVM", "", &FS, true);
1136   ASSERT_TRUE((bool)Style7b);
1137 
1138   // Test 8: inferred per-language defaults apply.
1139   auto StyleTd = getStyle("file", "x.td", "llvm", "", &FS);
1140   ASSERT_TRUE((bool)StyleTd);
1141   ASSERT_EQ(*StyleTd, getLLVMStyle(FormatStyle::LK_TableGen));
1142 
1143   // Test 9.1.1: overwriting a file style, when no parent file exists with no
1144   // fallback style.
1145   ASSERT_TRUE(FS.addFile(
1146       "/e/sub/.clang-format", 0,
1147       llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: InheritParentConfig\n"
1148                                        "ColumnLimit: 20")));
1149   ASSERT_TRUE(FS.addFile("/e/sub/code.cpp", 0,
1150                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1151   auto Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1152   ASSERT_TRUE(static_cast<bool>(Style9));
1153   ASSERT_EQ(*Style9, [] {
1154     auto Style = getNoStyle();
1155     Style.ColumnLimit = 20;
1156     return Style;
1157   }());
1158 
1159   // Test 9.1.2: propagate more than one level with no parent file.
1160   ASSERT_TRUE(FS.addFile("/e/sub/sub/code.cpp", 0,
1161                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1162   ASSERT_TRUE(FS.addFile("/e/sub/sub/.clang-format", 0,
1163                          llvm::MemoryBuffer::getMemBuffer(
1164                              "BasedOnStyle: InheritParentConfig\n"
1165                              "WhitespaceSensitiveMacros: ['FOO', 'BAR']")));
1166   std::vector<std::string> NonDefaultWhiteSpaceMacros =
1167       Style9->WhitespaceSensitiveMacros;
1168   NonDefaultWhiteSpaceMacros[0] = "FOO";
1169   NonDefaultWhiteSpaceMacros[1] = "BAR";
1170 
1171   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1172   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1173   ASSERT_TRUE(static_cast<bool>(Style9));
1174   ASSERT_EQ(*Style9, [&NonDefaultWhiteSpaceMacros] {
1175     auto Style = getNoStyle();
1176     Style.ColumnLimit = 20;
1177     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1178     return Style;
1179   }());
1180 
1181   // Test 9.2: with LLVM fallback style
1182   Style9 = getStyle("file", "/e/sub/code.cpp", "LLVM", "", &FS);
1183   ASSERT_TRUE(static_cast<bool>(Style9));
1184   ASSERT_EQ(*Style9, [] {
1185     auto Style = getLLVMStyle();
1186     Style.ColumnLimit = 20;
1187     return Style;
1188   }());
1189 
1190   // Test 9.3: with a parent file
1191   ASSERT_TRUE(
1192       FS.addFile("/e/.clang-format", 0,
1193                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google\n"
1194                                                   "UseTab: Always")));
1195   Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1196   ASSERT_TRUE(static_cast<bool>(Style9));
1197   ASSERT_EQ(*Style9, [] {
1198     auto Style = getGoogleStyle();
1199     Style.ColumnLimit = 20;
1200     Style.UseTab = FormatStyle::UT_Always;
1201     return Style;
1202   }());
1203 
1204   // Test 9.4: propagate more than one level with a parent file.
1205   const auto SubSubStyle = [&NonDefaultWhiteSpaceMacros] {
1206     auto Style = getGoogleStyle();
1207     Style.ColumnLimit = 20;
1208     Style.UseTab = FormatStyle::UT_Always;
1209     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1210     return Style;
1211   }();
1212 
1213   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1214   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1215   ASSERT_TRUE(static_cast<bool>(Style9));
1216   ASSERT_EQ(*Style9, SubSubStyle);
1217 
1218   // Test 9.5: use InheritParentConfig as style name
1219   Style9 =
1220       getStyle("inheritparentconfig", "/e/sub/sub/code.cpp", "none", "", &FS);
1221   ASSERT_TRUE(static_cast<bool>(Style9));
1222   ASSERT_EQ(*Style9, SubSubStyle);
1223 
1224   // Test 9.6: use command line style with inheritance
1225   Style9 = getStyle("{BasedOnStyle: InheritParentConfig}",
1226                     "/e/sub/sub/code.cpp", "none", "", &FS);
1227   ASSERT_TRUE(static_cast<bool>(Style9));
1228   ASSERT_EQ(*Style9, SubSubStyle);
1229 
1230   // Test 9.7: use command line style with inheritance and own config
1231   Style9 = getStyle("{BasedOnStyle: InheritParentConfig, "
1232                     "WhitespaceSensitiveMacros: ['FOO', 'BAR']}",
1233                     "/e/sub/code.cpp", "none", "", &FS);
1234   ASSERT_TRUE(static_cast<bool>(Style9));
1235   ASSERT_EQ(*Style9, SubSubStyle);
1236 
1237   // Test 9.8: use inheritance from a file without BasedOnStyle
1238   ASSERT_TRUE(FS.addFile("/e/withoutbase/.clang-format", 0,
1239                          llvm::MemoryBuffer::getMemBuffer("ColumnLimit: 123")));
1240   ASSERT_TRUE(
1241       FS.addFile("/e/withoutbase/sub/.clang-format", 0,
1242                  llvm::MemoryBuffer::getMemBuffer(
1243                      "BasedOnStyle: InheritParentConfig\nIndentWidth: 7")));
1244   // Make sure we do not use the fallback style
1245   Style9 = getStyle("file", "/e/withoutbase/code.cpp", "google", "", &FS);
1246   ASSERT_TRUE(static_cast<bool>(Style9));
1247   ASSERT_EQ(*Style9, [] {
1248     auto Style = getLLVMStyle();
1249     Style.ColumnLimit = 123;
1250     return Style;
1251   }());
1252 
1253   Style9 = getStyle("file", "/e/withoutbase/sub/code.cpp", "google", "", &FS);
1254   ASSERT_TRUE(static_cast<bool>(Style9));
1255   ASSERT_EQ(*Style9, [] {
1256     auto Style = getLLVMStyle();
1257     Style.ColumnLimit = 123;
1258     Style.IndentWidth = 7;
1259     return Style;
1260   }());
1261 
1262   // Test 9.9: use inheritance from a specific config file.
1263   Style9 = getStyle("file:/e/sub/sub/.clang-format", "/e/sub/sub/code.cpp",
1264                     "none", "", &FS);
1265   ASSERT_TRUE(static_cast<bool>(Style9));
1266   ASSERT_EQ(*Style9, SubSubStyle);
1267 }
1268 
1269 TEST(ConfigParseTest, GetStyleOfSpecificFile) {
1270   llvm::vfs::InMemoryFileSystem FS;
1271   // Specify absolute path to a format file in a parent directory.
1272   ASSERT_TRUE(
1273       FS.addFile("/e/.clang-format", 0,
1274                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1275   ASSERT_TRUE(
1276       FS.addFile("/e/explicit.clang-format", 0,
1277                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1278   ASSERT_TRUE(FS.addFile("/e/sub/sub/sub/test.cpp", 0,
1279                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1280   auto Style = getStyle("file:/e/explicit.clang-format",
1281                         "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1282   ASSERT_TRUE(static_cast<bool>(Style));
1283   ASSERT_EQ(*Style, getGoogleStyle());
1284 
1285   // Specify relative path to a format file.
1286   ASSERT_TRUE(
1287       FS.addFile("../../e/explicit.clang-format", 0,
1288                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1289   Style = getStyle("file:../../e/explicit.clang-format",
1290                    "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1291   ASSERT_TRUE(static_cast<bool>(Style));
1292   ASSERT_EQ(*Style, getGoogleStyle());
1293 
1294   // Specify path to a format file that does not exist.
1295   Style = getStyle("file:/e/missing.clang-format", "/e/sub/sub/sub/test.cpp",
1296                    "LLVM", "", &FS);
1297   ASSERT_FALSE(static_cast<bool>(Style));
1298   llvm::consumeError(Style.takeError());
1299 
1300   // Specify path to a file on the filesystem.
1301   SmallString<128> FormatFilePath;
1302   std::error_code ECF = llvm::sys::fs::createTemporaryFile(
1303       "FormatFileTest", "tpl", FormatFilePath);
1304   EXPECT_FALSE((bool)ECF);
1305   llvm::raw_fd_ostream FormatFileTest(FormatFilePath, ECF);
1306   EXPECT_FALSE((bool)ECF);
1307   FormatFileTest << "BasedOnStyle: Google\n";
1308   FormatFileTest.close();
1309 
1310   SmallString<128> TestFilePath;
1311   std::error_code ECT =
1312       llvm::sys::fs::createTemporaryFile("CodeFileTest", "cc", TestFilePath);
1313   EXPECT_FALSE((bool)ECT);
1314   llvm::raw_fd_ostream CodeFileTest(TestFilePath, ECT);
1315   CodeFileTest << "int i;\n";
1316   CodeFileTest.close();
1317 
1318   std::string format_file_arg = std::string("file:") + FormatFilePath.c_str();
1319   Style = getStyle(format_file_arg, TestFilePath, "LLVM", "", nullptr);
1320 
1321   llvm::sys::fs::remove(FormatFilePath.c_str());
1322   llvm::sys::fs::remove(TestFilePath.c_str());
1323   ASSERT_TRUE(static_cast<bool>(Style));
1324   ASSERT_EQ(*Style, getGoogleStyle());
1325 }
1326 
1327 } // namespace
1328 } // namespace format
1329 } // namespace clang
1330