xref: /llvm-project/clang/unittests/Format/ConfigParseTest.cpp (revision c12aa69a0be9acd0c751bf92318050d2b3730f9b)
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("BracedInitializerIndentWidth: 34", BracedInitializerIndentWidth,
251               34);
252   CHECK_PARSE("CommentPragmas: '// abc$'", CommentPragmas, "// abc$");
253 
254   Style.QualifierAlignment = FormatStyle::QAS_Right;
255   CHECK_PARSE("QualifierAlignment: Leave", QualifierAlignment,
256               FormatStyle::QAS_Leave);
257   CHECK_PARSE("QualifierAlignment: Right", QualifierAlignment,
258               FormatStyle::QAS_Right);
259   CHECK_PARSE("QualifierAlignment: Left", QualifierAlignment,
260               FormatStyle::QAS_Left);
261   CHECK_PARSE("QualifierAlignment: Custom", QualifierAlignment,
262               FormatStyle::QAS_Custom);
263 
264   Style.QualifierOrder.clear();
265   CHECK_PARSE("QualifierOrder: [ const, volatile, type ]", QualifierOrder,
266               std::vector<std::string>({"const", "volatile", "type"}));
267   Style.QualifierOrder.clear();
268   CHECK_PARSE("QualifierOrder: [const, type]", QualifierOrder,
269               std::vector<std::string>({"const", "type"}));
270   Style.QualifierOrder.clear();
271   CHECK_PARSE("QualifierOrder: [volatile, type]", QualifierOrder,
272               std::vector<std::string>({"volatile", "type"}));
273 
274 #define CHECK_ALIGN_CONSECUTIVE(FIELD)                                         \
275   do {                                                                         \
276     Style.FIELD.Enabled = true;                                                \
277     CHECK_PARSE(#FIELD ": None", FIELD,                                        \
278                 FormatStyle::AlignConsecutiveStyle(                            \
279                     {/*Enabled=*/false, /*AcrossEmptyLines=*/false,            \
280                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
281                      /*PadOperators=*/true}));                                 \
282     CHECK_PARSE(#FIELD ": Consecutive", FIELD,                                 \
283                 FormatStyle::AlignConsecutiveStyle(                            \
284                     {/*Enabled=*/true, /*AcrossEmptyLines=*/false,             \
285                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
286                      /*PadOperators=*/true}));                                 \
287     CHECK_PARSE(#FIELD ": AcrossEmptyLines", FIELD,                            \
288                 FormatStyle::AlignConsecutiveStyle(                            \
289                     {/*Enabled=*/true, /*AcrossEmptyLines=*/true,              \
290                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
291                      /*PadOperators=*/true}));                                 \
292     CHECK_PARSE(#FIELD ": AcrossEmptyLinesAndComments", FIELD,                 \
293                 FormatStyle::AlignConsecutiveStyle(                            \
294                     {/*Enabled=*/true, /*AcrossEmptyLines=*/true,              \
295                      /*AcrossComments=*/true, /*AlignCompound=*/false,         \
296                      /*PadOperators=*/true}));                                 \
297     /* For backwards compability, false / true should still parse */           \
298     CHECK_PARSE(#FIELD ": false", FIELD,                                       \
299                 FormatStyle::AlignConsecutiveStyle(                            \
300                     {/*Enabled=*/false, /*AcrossEmptyLines=*/false,            \
301                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
302                      /*PadOperators=*/true}));                                 \
303     CHECK_PARSE(#FIELD ": true", FIELD,                                        \
304                 FormatStyle::AlignConsecutiveStyle(                            \
305                     {/*Enabled=*/true, /*AcrossEmptyLines=*/false,             \
306                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
307                      /*PadOperators=*/true}));                                 \
308                                                                                \
309     CHECK_PARSE_NESTED_BOOL(FIELD, Enabled);                                   \
310     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossEmptyLines);                          \
311     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossComments);                            \
312     CHECK_PARSE_NESTED_BOOL(FIELD, AlignCompound);                             \
313     CHECK_PARSE_NESTED_BOOL(FIELD, PadOperators);                              \
314   } while (false)
315 
316   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveAssignments);
317   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveBitFields);
318   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveMacros);
319   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveDeclarations);
320 
321 #undef CHECK_ALIGN_CONSECUTIVE
322 
323   Style.PointerAlignment = FormatStyle::PAS_Middle;
324   CHECK_PARSE("PointerAlignment: Left", PointerAlignment,
325               FormatStyle::PAS_Left);
326   CHECK_PARSE("PointerAlignment: Right", PointerAlignment,
327               FormatStyle::PAS_Right);
328   CHECK_PARSE("PointerAlignment: Middle", PointerAlignment,
329               FormatStyle::PAS_Middle);
330   Style.ReferenceAlignment = FormatStyle::RAS_Middle;
331   CHECK_PARSE("ReferenceAlignment: Pointer", ReferenceAlignment,
332               FormatStyle::RAS_Pointer);
333   CHECK_PARSE("ReferenceAlignment: Left", ReferenceAlignment,
334               FormatStyle::RAS_Left);
335   CHECK_PARSE("ReferenceAlignment: Right", ReferenceAlignment,
336               FormatStyle::RAS_Right);
337   CHECK_PARSE("ReferenceAlignment: Middle", ReferenceAlignment,
338               FormatStyle::RAS_Middle);
339   // For backward compatibility:
340   CHECK_PARSE("PointerBindsToType: Left", PointerAlignment,
341               FormatStyle::PAS_Left);
342   CHECK_PARSE("PointerBindsToType: Right", PointerAlignment,
343               FormatStyle::PAS_Right);
344   CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment,
345               FormatStyle::PAS_Middle);
346 
347   Style.Standard = FormatStyle::LS_Auto;
348   CHECK_PARSE("Standard: c++03", Standard, FormatStyle::LS_Cpp03);
349   CHECK_PARSE("Standard: c++11", Standard, FormatStyle::LS_Cpp11);
350   CHECK_PARSE("Standard: c++14", Standard, FormatStyle::LS_Cpp14);
351   CHECK_PARSE("Standard: c++17", Standard, FormatStyle::LS_Cpp17);
352   CHECK_PARSE("Standard: c++20", Standard, FormatStyle::LS_Cpp20);
353   CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto);
354   CHECK_PARSE("Standard: Latest", Standard, FormatStyle::LS_Latest);
355   // Legacy aliases:
356   CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03);
357   CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Latest);
358   CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03);
359   CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11);
360 
361   Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
362   CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment",
363               BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment);
364   CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators,
365               FormatStyle::BOS_None);
366   CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators,
367               FormatStyle::BOS_All);
368   // For backward compatibility:
369   CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators,
370               FormatStyle::BOS_None);
371   CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators,
372               FormatStyle::BOS_All);
373 
374   Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
375   CHECK_PARSE("BreakConstructorInitializers: BeforeComma",
376               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
377   CHECK_PARSE("BreakConstructorInitializers: AfterColon",
378               BreakConstructorInitializers, FormatStyle::BCIS_AfterColon);
379   CHECK_PARSE("BreakConstructorInitializers: BeforeColon",
380               BreakConstructorInitializers, FormatStyle::BCIS_BeforeColon);
381   // For backward compatibility:
382   CHECK_PARSE("BreakConstructorInitializersBeforeComma: true",
383               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
384 
385   Style.BreakInheritanceList = FormatStyle::BILS_BeforeColon;
386   CHECK_PARSE("BreakInheritanceList: AfterComma", BreakInheritanceList,
387               FormatStyle::BILS_AfterComma);
388   CHECK_PARSE("BreakInheritanceList: BeforeComma", BreakInheritanceList,
389               FormatStyle::BILS_BeforeComma);
390   CHECK_PARSE("BreakInheritanceList: AfterColon", BreakInheritanceList,
391               FormatStyle::BILS_AfterColon);
392   CHECK_PARSE("BreakInheritanceList: BeforeColon", BreakInheritanceList,
393               FormatStyle::BILS_BeforeColon);
394   // For backward compatibility:
395   CHECK_PARSE("BreakBeforeInheritanceComma: true", BreakInheritanceList,
396               FormatStyle::BILS_BeforeComma);
397 
398   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
399   CHECK_PARSE("PackConstructorInitializers: Never", PackConstructorInitializers,
400               FormatStyle::PCIS_Never);
401   CHECK_PARSE("PackConstructorInitializers: BinPack",
402               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
403   CHECK_PARSE("PackConstructorInitializers: CurrentLine",
404               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
405   CHECK_PARSE("PackConstructorInitializers: NextLine",
406               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
407   CHECK_PARSE("PackConstructorInitializers: NextLineOnly",
408               PackConstructorInitializers, FormatStyle::PCIS_NextLineOnly);
409   // For backward compatibility:
410   CHECK_PARSE("BasedOnStyle: Google\n"
411               "ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
412               "AllowAllConstructorInitializersOnNextLine: false",
413               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
414   Style.PackConstructorInitializers = FormatStyle::PCIS_NextLine;
415   CHECK_PARSE("BasedOnStyle: Google\n"
416               "ConstructorInitializerAllOnOneLineOrOnePerLine: false",
417               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
418   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
419               "AllowAllConstructorInitializersOnNextLine: true",
420               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
421   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
422   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
423               "AllowAllConstructorInitializersOnNextLine: false",
424               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
425 
426   Style.EmptyLineBeforeAccessModifier = FormatStyle::ELBAMS_LogicalBlock;
427   CHECK_PARSE("EmptyLineBeforeAccessModifier: Never",
428               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Never);
429   CHECK_PARSE("EmptyLineBeforeAccessModifier: Leave",
430               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Leave);
431   CHECK_PARSE("EmptyLineBeforeAccessModifier: LogicalBlock",
432               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_LogicalBlock);
433   CHECK_PARSE("EmptyLineBeforeAccessModifier: Always",
434               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Always);
435 
436   Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
437   CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket,
438               FormatStyle::BAS_Align);
439   CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket,
440               FormatStyle::BAS_DontAlign);
441   CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket,
442               FormatStyle::BAS_AlwaysBreak);
443   CHECK_PARSE("AlignAfterOpenBracket: BlockIndent", AlignAfterOpenBracket,
444               FormatStyle::BAS_BlockIndent);
445   // For backward compatibility:
446   CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket,
447               FormatStyle::BAS_DontAlign);
448   CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket,
449               FormatStyle::BAS_Align);
450 
451   Style.AlignEscapedNewlines = FormatStyle::ENAS_Left;
452   CHECK_PARSE("AlignEscapedNewlines: DontAlign", AlignEscapedNewlines,
453               FormatStyle::ENAS_DontAlign);
454   CHECK_PARSE("AlignEscapedNewlines: Left", AlignEscapedNewlines,
455               FormatStyle::ENAS_Left);
456   CHECK_PARSE("AlignEscapedNewlines: Right", AlignEscapedNewlines,
457               FormatStyle::ENAS_Right);
458   // For backward compatibility:
459   CHECK_PARSE("AlignEscapedNewlinesLeft: true", AlignEscapedNewlines,
460               FormatStyle::ENAS_Left);
461   CHECK_PARSE("AlignEscapedNewlinesLeft: false", AlignEscapedNewlines,
462               FormatStyle::ENAS_Right);
463 
464   Style.AlignOperands = FormatStyle::OAS_Align;
465   CHECK_PARSE("AlignOperands: DontAlign", AlignOperands,
466               FormatStyle::OAS_DontAlign);
467   CHECK_PARSE("AlignOperands: Align", AlignOperands, FormatStyle::OAS_Align);
468   CHECK_PARSE("AlignOperands: AlignAfterOperator", AlignOperands,
469               FormatStyle::OAS_AlignAfterOperator);
470   // For backward compatibility:
471   CHECK_PARSE("AlignOperands: false", AlignOperands,
472               FormatStyle::OAS_DontAlign);
473   CHECK_PARSE("AlignOperands: true", AlignOperands, FormatStyle::OAS_Align);
474 
475   CHECK_PARSE("AlignTrailingComments: Leave", AlignTrailingComments,
476               FormatStyle::TrailingCommentsAlignmentStyle(
477                   {FormatStyle::TCAS_Leave, 0}));
478   CHECK_PARSE("AlignTrailingComments: Always", AlignTrailingComments,
479               FormatStyle::TrailingCommentsAlignmentStyle(
480                   {FormatStyle::TCAS_Always, 0}));
481   CHECK_PARSE("AlignTrailingComments: Never", AlignTrailingComments,
482               FormatStyle::TrailingCommentsAlignmentStyle(
483                   {FormatStyle::TCAS_Never, 0}));
484   // For backwards compatibility
485   CHECK_PARSE("AlignTrailingComments: true", AlignTrailingComments,
486               FormatStyle::TrailingCommentsAlignmentStyle(
487                   {FormatStyle::TCAS_Always, 0}));
488   CHECK_PARSE("AlignTrailingComments: false", AlignTrailingComments,
489               FormatStyle::TrailingCommentsAlignmentStyle(
490                   {FormatStyle::TCAS_Never, 0}));
491   CHECK_PARSE_NESTED_VALUE("Kind: Always", AlignTrailingComments, Kind,
492                            FormatStyle::TCAS_Always);
493   CHECK_PARSE_NESTED_VALUE("Kind: Never", AlignTrailingComments, Kind,
494                            FormatStyle::TCAS_Never);
495   CHECK_PARSE_NESTED_VALUE("Kind: Leave", AlignTrailingComments, Kind,
496                            FormatStyle::TCAS_Leave);
497   CHECK_PARSE_NESTED_VALUE("OverEmptyLines: 1234", AlignTrailingComments,
498                            OverEmptyLines, 1234u);
499 
500   Style.UseTab = FormatStyle::UT_ForIndentation;
501   CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never);
502   CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation);
503   CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always);
504   CHECK_PARSE("UseTab: ForContinuationAndIndentation", UseTab,
505               FormatStyle::UT_ForContinuationAndIndentation);
506   CHECK_PARSE("UseTab: AlignWithSpaces", UseTab,
507               FormatStyle::UT_AlignWithSpaces);
508   // For backward compatibility:
509   CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never);
510   CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always);
511 
512   Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Empty;
513   CHECK_PARSE("AllowShortBlocksOnASingleLine: Never",
514               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
515   CHECK_PARSE("AllowShortBlocksOnASingleLine: Empty",
516               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Empty);
517   CHECK_PARSE("AllowShortBlocksOnASingleLine: Always",
518               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
519   // For backward compatibility:
520   CHECK_PARSE("AllowShortBlocksOnASingleLine: false",
521               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
522   CHECK_PARSE("AllowShortBlocksOnASingleLine: true",
523               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
524 
525   Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
526   CHECK_PARSE("AllowShortFunctionsOnASingleLine: None",
527               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
528   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline",
529               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline);
530   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty",
531               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty);
532   CHECK_PARSE("AllowShortFunctionsOnASingleLine: All",
533               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
534   // For backward compatibility:
535   CHECK_PARSE("AllowShortFunctionsOnASingleLine: false",
536               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
537   CHECK_PARSE("AllowShortFunctionsOnASingleLine: true",
538               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
539 
540   Style.AllowShortLambdasOnASingleLine = FormatStyle::SLS_All;
541   CHECK_PARSE("AllowShortLambdasOnASingleLine: None",
542               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
543   CHECK_PARSE("AllowShortLambdasOnASingleLine: Empty",
544               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Empty);
545   CHECK_PARSE("AllowShortLambdasOnASingleLine: Inline",
546               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Inline);
547   CHECK_PARSE("AllowShortLambdasOnASingleLine: All",
548               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
549   // For backward compatibility:
550   CHECK_PARSE("AllowShortLambdasOnASingleLine: false",
551               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
552   CHECK_PARSE("AllowShortLambdasOnASingleLine: true",
553               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
554 
555   Style.SpaceAroundPointerQualifiers = FormatStyle::SAPQ_Both;
556   CHECK_PARSE("SpaceAroundPointerQualifiers: Default",
557               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Default);
558   CHECK_PARSE("SpaceAroundPointerQualifiers: Before",
559               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Before);
560   CHECK_PARSE("SpaceAroundPointerQualifiers: After",
561               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_After);
562   CHECK_PARSE("SpaceAroundPointerQualifiers: Both",
563               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Both);
564 
565   Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
566   CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens,
567               FormatStyle::SBPO_Never);
568   CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens,
569               FormatStyle::SBPO_Always);
570   CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens,
571               FormatStyle::SBPO_ControlStatements);
572   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptControlMacros",
573               SpaceBeforeParens,
574               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
575   CHECK_PARSE("SpaceBeforeParens: NonEmptyParentheses", SpaceBeforeParens,
576               FormatStyle::SBPO_NonEmptyParentheses);
577   CHECK_PARSE("SpaceBeforeParens: Custom", SpaceBeforeParens,
578               FormatStyle::SBPO_Custom);
579   // For backward compatibility:
580   CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens,
581               FormatStyle::SBPO_Never);
582   CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens,
583               FormatStyle::SBPO_ControlStatements);
584   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptForEachMacros",
585               SpaceBeforeParens,
586               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
587 
588   Style.ColumnLimit = 123;
589   FormatStyle BaseStyle = getLLVMStyle();
590   CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit);
591   CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u);
592 
593   Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
594   CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces,
595               FormatStyle::BS_Attach);
596   CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces,
597               FormatStyle::BS_Linux);
598   CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces,
599               FormatStyle::BS_Mozilla);
600   CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces,
601               FormatStyle::BS_Stroustrup);
602   CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces,
603               FormatStyle::BS_Allman);
604   CHECK_PARSE("BreakBeforeBraces: Whitesmiths", BreakBeforeBraces,
605               FormatStyle::BS_Whitesmiths);
606   CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU);
607   CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces,
608               FormatStyle::BS_WebKit);
609   CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces,
610               FormatStyle::BS_Custom);
611 
612   Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Never;
613   CHECK_PARSE("BraceWrapping:\n"
614               "  AfterControlStatement: MultiLine",
615               BraceWrapping.AfterControlStatement,
616               FormatStyle::BWACS_MultiLine);
617   CHECK_PARSE("BraceWrapping:\n"
618               "  AfterControlStatement: Always",
619               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
620   CHECK_PARSE("BraceWrapping:\n"
621               "  AfterControlStatement: Never",
622               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
623   // For backward compatibility:
624   CHECK_PARSE("BraceWrapping:\n"
625               "  AfterControlStatement: true",
626               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
627   CHECK_PARSE("BraceWrapping:\n"
628               "  AfterControlStatement: false",
629               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
630 
631   Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All;
632   CHECK_PARSE("AlwaysBreakAfterReturnType: None", AlwaysBreakAfterReturnType,
633               FormatStyle::RTBS_None);
634   CHECK_PARSE("AlwaysBreakAfterReturnType: All", AlwaysBreakAfterReturnType,
635               FormatStyle::RTBS_All);
636   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel",
637               AlwaysBreakAfterReturnType, FormatStyle::RTBS_TopLevel);
638   CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions",
639               AlwaysBreakAfterReturnType, FormatStyle::RTBS_AllDefinitions);
640   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions",
641               AlwaysBreakAfterReturnType,
642               FormatStyle::RTBS_TopLevelDefinitions);
643 
644   Style.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_Yes;
645   CHECK_PARSE("AlwaysBreakTemplateDeclarations: No",
646               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_No);
647   CHECK_PARSE("AlwaysBreakTemplateDeclarations: MultiLine",
648               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
649   CHECK_PARSE("AlwaysBreakTemplateDeclarations: Yes",
650               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
651   CHECK_PARSE("AlwaysBreakTemplateDeclarations: false",
652               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
653   CHECK_PARSE("AlwaysBreakTemplateDeclarations: true",
654               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
655 
656   Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All;
657   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None",
658               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None);
659   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All",
660               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All);
661   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel",
662               AlwaysBreakAfterDefinitionReturnType,
663               FormatStyle::DRTBS_TopLevel);
664 
665   Style.NamespaceIndentation = FormatStyle::NI_All;
666   CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation,
667               FormatStyle::NI_None);
668   CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation,
669               FormatStyle::NI_Inner);
670   CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation,
671               FormatStyle::NI_All);
672 
673   Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_OnlyFirstIf;
674   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Never",
675               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
676   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: WithoutElse",
677               AllowShortIfStatementsOnASingleLine,
678               FormatStyle::SIS_WithoutElse);
679   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: OnlyFirstIf",
680               AllowShortIfStatementsOnASingleLine,
681               FormatStyle::SIS_OnlyFirstIf);
682   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: AllIfsAndElse",
683               AllowShortIfStatementsOnASingleLine,
684               FormatStyle::SIS_AllIfsAndElse);
685   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Always",
686               AllowShortIfStatementsOnASingleLine,
687               FormatStyle::SIS_OnlyFirstIf);
688   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: false",
689               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
690   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: true",
691               AllowShortIfStatementsOnASingleLine,
692               FormatStyle::SIS_WithoutElse);
693 
694   Style.IndentExternBlock = FormatStyle::IEBS_NoIndent;
695   CHECK_PARSE("IndentExternBlock: AfterExternBlock", IndentExternBlock,
696               FormatStyle::IEBS_AfterExternBlock);
697   CHECK_PARSE("IndentExternBlock: Indent", IndentExternBlock,
698               FormatStyle::IEBS_Indent);
699   CHECK_PARSE("IndentExternBlock: NoIndent", IndentExternBlock,
700               FormatStyle::IEBS_NoIndent);
701   CHECK_PARSE("IndentExternBlock: true", IndentExternBlock,
702               FormatStyle::IEBS_Indent);
703   CHECK_PARSE("IndentExternBlock: false", IndentExternBlock,
704               FormatStyle::IEBS_NoIndent);
705 
706   Style.BitFieldColonSpacing = FormatStyle::BFCS_None;
707   CHECK_PARSE("BitFieldColonSpacing: Both", BitFieldColonSpacing,
708               FormatStyle::BFCS_Both);
709   CHECK_PARSE("BitFieldColonSpacing: None", BitFieldColonSpacing,
710               FormatStyle::BFCS_None);
711   CHECK_PARSE("BitFieldColonSpacing: Before", BitFieldColonSpacing,
712               FormatStyle::BFCS_Before);
713   CHECK_PARSE("BitFieldColonSpacing: After", BitFieldColonSpacing,
714               FormatStyle::BFCS_After);
715 
716   Style.SortJavaStaticImport = FormatStyle::SJSIO_Before;
717   CHECK_PARSE("SortJavaStaticImport: After", SortJavaStaticImport,
718               FormatStyle::SJSIO_After);
719   CHECK_PARSE("SortJavaStaticImport: Before", SortJavaStaticImport,
720               FormatStyle::SJSIO_Before);
721 
722   Style.SortUsingDeclarations = FormatStyle::SUD_LexicographicNumeric;
723   CHECK_PARSE("SortUsingDeclarations: Never", SortUsingDeclarations,
724               FormatStyle::SUD_Never);
725   CHECK_PARSE("SortUsingDeclarations: Lexicographic", SortUsingDeclarations,
726               FormatStyle::SUD_Lexicographic);
727   CHECK_PARSE("SortUsingDeclarations: LexicographicNumeric",
728               SortUsingDeclarations, FormatStyle::SUD_LexicographicNumeric);
729   // For backward compatibility:
730   CHECK_PARSE("SortUsingDeclarations: false", SortUsingDeclarations,
731               FormatStyle::SUD_Never);
732   CHECK_PARSE("SortUsingDeclarations: true", SortUsingDeclarations,
733               FormatStyle::SUD_LexicographicNumeric);
734 
735   // FIXME: This is required because parsing a configuration simply overwrites
736   // the first N elements of the list instead of resetting it.
737   Style.ForEachMacros.clear();
738   std::vector<std::string> BoostForeach;
739   BoostForeach.push_back("BOOST_FOREACH");
740   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach);
741   std::vector<std::string> BoostAndQForeach;
742   BoostAndQForeach.push_back("BOOST_FOREACH");
743   BoostAndQForeach.push_back("Q_FOREACH");
744   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros,
745               BoostAndQForeach);
746 
747   Style.IfMacros.clear();
748   std::vector<std::string> CustomIfs;
749   CustomIfs.push_back("MYIF");
750   CHECK_PARSE("IfMacros: [MYIF]", IfMacros, CustomIfs);
751 
752   Style.AttributeMacros.clear();
753   CHECK_PARSE("BasedOnStyle: LLVM", AttributeMacros,
754               std::vector<std::string>{"__capability"});
755   CHECK_PARSE("AttributeMacros: [attr1, attr2]", AttributeMacros,
756               std::vector<std::string>({"attr1", "attr2"}));
757 
758   Style.StatementAttributeLikeMacros.clear();
759   CHECK_PARSE("StatementAttributeLikeMacros: [emit,Q_EMIT]",
760               StatementAttributeLikeMacros,
761               std::vector<std::string>({"emit", "Q_EMIT"}));
762 
763   Style.StatementMacros.clear();
764   CHECK_PARSE("StatementMacros: [QUNUSED]", StatementMacros,
765               std::vector<std::string>{"QUNUSED"});
766   CHECK_PARSE("StatementMacros: [QUNUSED, QT_REQUIRE_VERSION]", StatementMacros,
767               std::vector<std::string>({"QUNUSED", "QT_REQUIRE_VERSION"}));
768 
769   Style.NamespaceMacros.clear();
770   CHECK_PARSE("NamespaceMacros: [TESTSUITE]", NamespaceMacros,
771               std::vector<std::string>{"TESTSUITE"});
772   CHECK_PARSE("NamespaceMacros: [TESTSUITE, SUITE]", NamespaceMacros,
773               std::vector<std::string>({"TESTSUITE", "SUITE"}));
774 
775   Style.WhitespaceSensitiveMacros.clear();
776   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE]",
777               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
778   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE, ASSERT]",
779               WhitespaceSensitiveMacros,
780               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
781   Style.WhitespaceSensitiveMacros.clear();
782   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE']",
783               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
784   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE', 'ASSERT']",
785               WhitespaceSensitiveMacros,
786               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
787 
788   Style.IncludeStyle.IncludeCategories.clear();
789   std::vector<tooling::IncludeStyle::IncludeCategory> ExpectedCategories = {
790       {"abc/.*", 2, 0, false}, {".*", 1, 0, true}};
791   CHECK_PARSE("IncludeCategories:\n"
792               "  - Regex: abc/.*\n"
793               "    Priority: 2\n"
794               "  - Regex: .*\n"
795               "    Priority: 1\n"
796               "    CaseSensitive: true\n",
797               IncludeStyle.IncludeCategories, ExpectedCategories);
798   CHECK_PARSE("IncludeIsMainRegex: 'abc$'", IncludeStyle.IncludeIsMainRegex,
799               "abc$");
800   CHECK_PARSE("IncludeIsMainSourceRegex: 'abc$'",
801               IncludeStyle.IncludeIsMainSourceRegex, "abc$");
802 
803   Style.SortIncludes = FormatStyle::SI_Never;
804   CHECK_PARSE("SortIncludes: true", SortIncludes,
805               FormatStyle::SI_CaseSensitive);
806   CHECK_PARSE("SortIncludes: false", SortIncludes, FormatStyle::SI_Never);
807   CHECK_PARSE("SortIncludes: CaseInsensitive", SortIncludes,
808               FormatStyle::SI_CaseInsensitive);
809   CHECK_PARSE("SortIncludes: CaseSensitive", SortIncludes,
810               FormatStyle::SI_CaseSensitive);
811   CHECK_PARSE("SortIncludes: Never", SortIncludes, FormatStyle::SI_Never);
812 
813   Style.RawStringFormats.clear();
814   std::vector<FormatStyle::RawStringFormat> ExpectedRawStringFormats = {
815       {
816           FormatStyle::LK_TextProto,
817           {"pb", "proto"},
818           {"PARSE_TEXT_PROTO"},
819           /*CanonicalDelimiter=*/"",
820           "llvm",
821       },
822       {
823           FormatStyle::LK_Cpp,
824           {"cc", "cpp"},
825           {"C_CODEBLOCK", "CPPEVAL"},
826           /*CanonicalDelimiter=*/"cc",
827           /*BasedOnStyle=*/"",
828       },
829   };
830 
831   CHECK_PARSE("RawStringFormats:\n"
832               "  - Language: TextProto\n"
833               "    Delimiters:\n"
834               "      - 'pb'\n"
835               "      - 'proto'\n"
836               "    EnclosingFunctions:\n"
837               "      - 'PARSE_TEXT_PROTO'\n"
838               "    BasedOnStyle: llvm\n"
839               "  - Language: Cpp\n"
840               "    Delimiters:\n"
841               "      - 'cc'\n"
842               "      - 'cpp'\n"
843               "    EnclosingFunctions:\n"
844               "      - 'C_CODEBLOCK'\n"
845               "      - 'CPPEVAL'\n"
846               "    CanonicalDelimiter: 'cc'",
847               RawStringFormats, ExpectedRawStringFormats);
848 
849   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
850               "  Minimum: 0\n"
851               "  Maximum: 0",
852               SpacesInLineCommentPrefix.Minimum, 0u);
853   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Maximum, 0u);
854   Style.SpacesInLineCommentPrefix.Minimum = 1;
855   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
856               "  Minimum: 2",
857               SpacesInLineCommentPrefix.Minimum, 0u);
858   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
859               "  Maximum: -1",
860               SpacesInLineCommentPrefix.Maximum, -1u);
861   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
862               "  Minimum: 2",
863               SpacesInLineCommentPrefix.Minimum, 2u);
864   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
865               "  Maximum: 1",
866               SpacesInLineCommentPrefix.Maximum, 1u);
867   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Minimum, 1u);
868 
869   Style.SpacesInAngles = FormatStyle::SIAS_Always;
870   CHECK_PARSE("SpacesInAngles: Never", SpacesInAngles, FormatStyle::SIAS_Never);
871   CHECK_PARSE("SpacesInAngles: Always", SpacesInAngles,
872               FormatStyle::SIAS_Always);
873   CHECK_PARSE("SpacesInAngles: Leave", SpacesInAngles, FormatStyle::SIAS_Leave);
874   // For backward compatibility:
875   CHECK_PARSE("SpacesInAngles: false", SpacesInAngles, FormatStyle::SIAS_Never);
876   CHECK_PARSE("SpacesInAngles: true", SpacesInAngles, FormatStyle::SIAS_Always);
877 
878   CHECK_PARSE("RequiresClausePosition: WithPreceding", RequiresClausePosition,
879               FormatStyle::RCPS_WithPreceding);
880   CHECK_PARSE("RequiresClausePosition: WithFollowing", RequiresClausePosition,
881               FormatStyle::RCPS_WithFollowing);
882   CHECK_PARSE("RequiresClausePosition: SingleLine", RequiresClausePosition,
883               FormatStyle::RCPS_SingleLine);
884   CHECK_PARSE("RequiresClausePosition: OwnLine", RequiresClausePosition,
885               FormatStyle::RCPS_OwnLine);
886 
887   CHECK_PARSE("BreakBeforeConceptDeclarations: Never",
888               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Never);
889   CHECK_PARSE("BreakBeforeConceptDeclarations: Always",
890               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
891   CHECK_PARSE("BreakBeforeConceptDeclarations: Allowed",
892               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
893   // For backward compatibility:
894   CHECK_PARSE("BreakBeforeConceptDeclarations: true",
895               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
896   CHECK_PARSE("BreakBeforeConceptDeclarations: false",
897               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
898 
899   CHECK_PARSE("BreakAfterAttributes: Always", BreakAfterAttributes,
900               FormatStyle::ABS_Always);
901   CHECK_PARSE("BreakAfterAttributes: Leave", BreakAfterAttributes,
902               FormatStyle::ABS_Leave);
903   CHECK_PARSE("BreakAfterAttributes: Never", BreakAfterAttributes,
904               FormatStyle::ABS_Never);
905 
906   const auto DefaultLineEnding = FormatStyle::LE_DeriveLF;
907   CHECK_PARSE("LineEnding: LF", LineEnding, FormatStyle::LE_LF);
908   CHECK_PARSE("LineEnding: CRLF", LineEnding, FormatStyle::LE_CRLF);
909   CHECK_PARSE("LineEnding: DeriveCRLF", LineEnding, FormatStyle::LE_DeriveCRLF);
910   CHECK_PARSE("LineEnding: DeriveLF", LineEnding, DefaultLineEnding);
911   // For backward compatibility:
912   CHECK_PARSE("DeriveLineEnding: false", LineEnding, FormatStyle::LE_LF);
913   Style.LineEnding = DefaultLineEnding;
914   CHECK_PARSE("DeriveLineEnding: false\n"
915               "UseCRLF: true",
916               LineEnding, FormatStyle::LE_CRLF);
917   Style.LineEnding = DefaultLineEnding;
918   CHECK_PARSE("UseCRLF: true", LineEnding, FormatStyle::LE_DeriveCRLF);
919 }
920 
921 TEST(ConfigParseTest, ParsesConfigurationWithLanguages) {
922   FormatStyle Style = {};
923   Style.Language = FormatStyle::LK_Cpp;
924   CHECK_PARSE("Language: Cpp\n"
925               "IndentWidth: 12",
926               IndentWidth, 12u);
927   EXPECT_EQ(parseConfiguration("Language: JavaScript\n"
928                                "IndentWidth: 34",
929                                &Style),
930             ParseError::Unsuitable);
931   FormatStyle BinPackedTCS = {};
932   BinPackedTCS.Language = FormatStyle::LK_JavaScript;
933   EXPECT_EQ(parseConfiguration("BinPackArguments: true\n"
934                                "InsertTrailingCommas: Wrapped",
935                                &BinPackedTCS),
936             ParseError::BinPackTrailingCommaConflict);
937   EXPECT_EQ(12u, Style.IndentWidth);
938   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
939   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
940 
941   Style.Language = FormatStyle::LK_JavaScript;
942   CHECK_PARSE("Language: JavaScript\n"
943               "IndentWidth: 12",
944               IndentWidth, 12u);
945   CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u);
946   EXPECT_EQ(parseConfiguration("Language: Cpp\n"
947                                "IndentWidth: 34",
948                                &Style),
949             ParseError::Unsuitable);
950   EXPECT_EQ(23u, Style.IndentWidth);
951   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
952   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
953 
954   CHECK_PARSE("BasedOnStyle: LLVM\n"
955               "IndentWidth: 67",
956               IndentWidth, 67u);
957 
958   CHECK_PARSE("---\n"
959               "Language: JavaScript\n"
960               "IndentWidth: 12\n"
961               "---\n"
962               "Language: Cpp\n"
963               "IndentWidth: 34\n"
964               "...\n",
965               IndentWidth, 12u);
966 
967   Style.Language = FormatStyle::LK_Cpp;
968   CHECK_PARSE("---\n"
969               "Language: JavaScript\n"
970               "IndentWidth: 12\n"
971               "---\n"
972               "Language: Cpp\n"
973               "IndentWidth: 34\n"
974               "...\n",
975               IndentWidth, 34u);
976   CHECK_PARSE("---\n"
977               "IndentWidth: 78\n"
978               "---\n"
979               "Language: JavaScript\n"
980               "IndentWidth: 56\n"
981               "...\n",
982               IndentWidth, 78u);
983 
984   Style.ColumnLimit = 123;
985   Style.IndentWidth = 234;
986   Style.BreakBeforeBraces = FormatStyle::BS_Linux;
987   Style.TabWidth = 345;
988   EXPECT_FALSE(parseConfiguration("---\n"
989                                   "IndentWidth: 456\n"
990                                   "BreakBeforeBraces: Allman\n"
991                                   "---\n"
992                                   "Language: JavaScript\n"
993                                   "IndentWidth: 111\n"
994                                   "TabWidth: 111\n"
995                                   "---\n"
996                                   "Language: Cpp\n"
997                                   "BreakBeforeBraces: Stroustrup\n"
998                                   "TabWidth: 789\n"
999                                   "...\n",
1000                                   &Style));
1001   EXPECT_EQ(123u, Style.ColumnLimit);
1002   EXPECT_EQ(456u, Style.IndentWidth);
1003   EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces);
1004   EXPECT_EQ(789u, Style.TabWidth);
1005 
1006   EXPECT_EQ(parseConfiguration("---\n"
1007                                "Language: JavaScript\n"
1008                                "IndentWidth: 56\n"
1009                                "---\n"
1010                                "IndentWidth: 78\n"
1011                                "...\n",
1012                                &Style),
1013             ParseError::Error);
1014   EXPECT_EQ(parseConfiguration("---\n"
1015                                "Language: JavaScript\n"
1016                                "IndentWidth: 56\n"
1017                                "---\n"
1018                                "Language: JavaScript\n"
1019                                "IndentWidth: 78\n"
1020                                "...\n",
1021                                &Style),
1022             ParseError::Error);
1023 
1024   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
1025 }
1026 
1027 TEST(ConfigParseTest, UsesLanguageForBasedOnStyle) {
1028   FormatStyle Style = {};
1029   Style.Language = FormatStyle::LK_JavaScript;
1030   Style.BreakBeforeTernaryOperators = true;
1031   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value());
1032   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1033 
1034   Style.BreakBeforeTernaryOperators = true;
1035   EXPECT_EQ(0, parseConfiguration("---\n"
1036                                   "BasedOnStyle: Google\n"
1037                                   "---\n"
1038                                   "Language: JavaScript\n"
1039                                   "IndentWidth: 76\n"
1040                                   "...\n",
1041                                   &Style)
1042                    .value());
1043   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1044   EXPECT_EQ(76u, Style.IndentWidth);
1045   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
1046 }
1047 
1048 TEST(ConfigParseTest, ConfigurationRoundTripTest) {
1049   FormatStyle Style = getLLVMStyle();
1050   std::string YAML = configurationAsText(Style);
1051   FormatStyle ParsedStyle = {};
1052   ParsedStyle.Language = FormatStyle::LK_Cpp;
1053   EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value());
1054   EXPECT_EQ(Style, ParsedStyle);
1055 }
1056 
1057 TEST(ConfigParseTest, GetStyleWithEmptyFileName) {
1058   llvm::vfs::InMemoryFileSystem FS;
1059   auto Style1 = getStyle("file", "", "Google", "", &FS);
1060   ASSERT_TRUE((bool)Style1);
1061   ASSERT_EQ(*Style1, getGoogleStyle());
1062 }
1063 
1064 TEST(ConfigParseTest, GetStyleOfFile) {
1065   llvm::vfs::InMemoryFileSystem FS;
1066   // Test 1: format file in the same directory.
1067   ASSERT_TRUE(
1068       FS.addFile("/a/.clang-format", 0,
1069                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1070   ASSERT_TRUE(
1071       FS.addFile("/a/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1072   auto Style1 = getStyle("file", "/a/.clang-format", "Google", "", &FS);
1073   ASSERT_TRUE((bool)Style1);
1074   ASSERT_EQ(*Style1, getLLVMStyle());
1075 
1076   // Test 2.1: fallback to default.
1077   ASSERT_TRUE(
1078       FS.addFile("/b/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1079   auto Style2 = getStyle("file", "/b/test.cpp", "Mozilla", "", &FS);
1080   ASSERT_TRUE((bool)Style2);
1081   ASSERT_EQ(*Style2, getMozillaStyle());
1082 
1083   // Test 2.2: no format on 'none' fallback style.
1084   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1085   ASSERT_TRUE((bool)Style2);
1086   ASSERT_EQ(*Style2, getNoStyle());
1087 
1088   // Test 2.3: format if config is found with no based style while fallback is
1089   // 'none'.
1090   ASSERT_TRUE(FS.addFile("/b/.clang-format", 0,
1091                          llvm::MemoryBuffer::getMemBuffer("IndentWidth: 2")));
1092   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1093   ASSERT_TRUE((bool)Style2);
1094   ASSERT_EQ(*Style2, getLLVMStyle());
1095 
1096   // Test 2.4: format if yaml with no based style, while fallback is 'none'.
1097   Style2 = getStyle("{}", "a.h", "none", "", &FS);
1098   ASSERT_TRUE((bool)Style2);
1099   ASSERT_EQ(*Style2, getLLVMStyle());
1100 
1101   // Test 3: format file in parent directory.
1102   ASSERT_TRUE(
1103       FS.addFile("/c/.clang-format", 0,
1104                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1105   ASSERT_TRUE(FS.addFile("/c/sub/sub/sub/test.cpp", 0,
1106                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1107   auto Style3 = getStyle("file", "/c/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1108   ASSERT_TRUE((bool)Style3);
1109   ASSERT_EQ(*Style3, getGoogleStyle());
1110 
1111   // Test 4: error on invalid fallback style
1112   auto Style4 = getStyle("file", "a.h", "KungFu", "", &FS);
1113   ASSERT_FALSE((bool)Style4);
1114   llvm::consumeError(Style4.takeError());
1115 
1116   // Test 5: error on invalid yaml on command line
1117   auto Style5 = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS);
1118   ASSERT_FALSE((bool)Style5);
1119   llvm::consumeError(Style5.takeError());
1120 
1121   // Test 6: error on invalid style
1122   auto Style6 = getStyle("KungFu", "a.h", "LLVM", "", &FS);
1123   ASSERT_FALSE((bool)Style6);
1124   llvm::consumeError(Style6.takeError());
1125 
1126   // Test 7: found config file, error on parsing it
1127   ASSERT_TRUE(
1128       FS.addFile("/d/.clang-format", 0,
1129                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM\n"
1130                                                   "InvalidKey: InvalidValue")));
1131   ASSERT_TRUE(
1132       FS.addFile("/d/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1133   auto Style7a = getStyle("file", "/d/.clang-format", "LLVM", "", &FS);
1134   ASSERT_FALSE((bool)Style7a);
1135   llvm::consumeError(Style7a.takeError());
1136 
1137   auto Style7b = getStyle("file", "/d/.clang-format", "LLVM", "", &FS, true);
1138   ASSERT_TRUE((bool)Style7b);
1139 
1140   // Test 8: inferred per-language defaults apply.
1141   auto StyleTd = getStyle("file", "x.td", "llvm", "", &FS);
1142   ASSERT_TRUE((bool)StyleTd);
1143   ASSERT_EQ(*StyleTd, getLLVMStyle(FormatStyle::LK_TableGen));
1144 
1145   // Test 9.1.1: overwriting a file style, when no parent file exists with no
1146   // fallback style.
1147   ASSERT_TRUE(FS.addFile(
1148       "/e/sub/.clang-format", 0,
1149       llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: InheritParentConfig\n"
1150                                        "ColumnLimit: 20")));
1151   ASSERT_TRUE(FS.addFile("/e/sub/code.cpp", 0,
1152                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1153   auto Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1154   ASSERT_TRUE(static_cast<bool>(Style9));
1155   ASSERT_EQ(*Style9, [] {
1156     auto Style = getNoStyle();
1157     Style.ColumnLimit = 20;
1158     return Style;
1159   }());
1160 
1161   // Test 9.1.2: propagate more than one level with no parent file.
1162   ASSERT_TRUE(FS.addFile("/e/sub/sub/code.cpp", 0,
1163                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1164   ASSERT_TRUE(FS.addFile("/e/sub/sub/.clang-format", 0,
1165                          llvm::MemoryBuffer::getMemBuffer(
1166                              "BasedOnStyle: InheritParentConfig\n"
1167                              "WhitespaceSensitiveMacros: ['FOO', 'BAR']")));
1168   std::vector<std::string> NonDefaultWhiteSpaceMacros =
1169       Style9->WhitespaceSensitiveMacros;
1170   NonDefaultWhiteSpaceMacros[0] = "FOO";
1171   NonDefaultWhiteSpaceMacros[1] = "BAR";
1172 
1173   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1174   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1175   ASSERT_TRUE(static_cast<bool>(Style9));
1176   ASSERT_EQ(*Style9, [&NonDefaultWhiteSpaceMacros] {
1177     auto Style = getNoStyle();
1178     Style.ColumnLimit = 20;
1179     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1180     return Style;
1181   }());
1182 
1183   // Test 9.2: with LLVM fallback style
1184   Style9 = getStyle("file", "/e/sub/code.cpp", "LLVM", "", &FS);
1185   ASSERT_TRUE(static_cast<bool>(Style9));
1186   ASSERT_EQ(*Style9, [] {
1187     auto Style = getLLVMStyle();
1188     Style.ColumnLimit = 20;
1189     return Style;
1190   }());
1191 
1192   // Test 9.3: with a parent file
1193   ASSERT_TRUE(
1194       FS.addFile("/e/.clang-format", 0,
1195                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google\n"
1196                                                   "UseTab: Always")));
1197   Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1198   ASSERT_TRUE(static_cast<bool>(Style9));
1199   ASSERT_EQ(*Style9, [] {
1200     auto Style = getGoogleStyle();
1201     Style.ColumnLimit = 20;
1202     Style.UseTab = FormatStyle::UT_Always;
1203     return Style;
1204   }());
1205 
1206   // Test 9.4: propagate more than one level with a parent file.
1207   const auto SubSubStyle = [&NonDefaultWhiteSpaceMacros] {
1208     auto Style = getGoogleStyle();
1209     Style.ColumnLimit = 20;
1210     Style.UseTab = FormatStyle::UT_Always;
1211     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1212     return Style;
1213   }();
1214 
1215   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1216   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1217   ASSERT_TRUE(static_cast<bool>(Style9));
1218   ASSERT_EQ(*Style9, SubSubStyle);
1219 
1220   // Test 9.5: use InheritParentConfig as style name
1221   Style9 =
1222       getStyle("inheritparentconfig", "/e/sub/sub/code.cpp", "none", "", &FS);
1223   ASSERT_TRUE(static_cast<bool>(Style9));
1224   ASSERT_EQ(*Style9, SubSubStyle);
1225 
1226   // Test 9.6: use command line style with inheritance
1227   Style9 = getStyle("{BasedOnStyle: InheritParentConfig}",
1228                     "/e/sub/sub/code.cpp", "none", "", &FS);
1229   ASSERT_TRUE(static_cast<bool>(Style9));
1230   ASSERT_EQ(*Style9, SubSubStyle);
1231 
1232   // Test 9.7: use command line style with inheritance and own config
1233   Style9 = getStyle("{BasedOnStyle: InheritParentConfig, "
1234                     "WhitespaceSensitiveMacros: ['FOO', 'BAR']}",
1235                     "/e/sub/code.cpp", "none", "", &FS);
1236   ASSERT_TRUE(static_cast<bool>(Style9));
1237   ASSERT_EQ(*Style9, SubSubStyle);
1238 
1239   // Test 9.8: use inheritance from a file without BasedOnStyle
1240   ASSERT_TRUE(FS.addFile("/e/withoutbase/.clang-format", 0,
1241                          llvm::MemoryBuffer::getMemBuffer("ColumnLimit: 123")));
1242   ASSERT_TRUE(
1243       FS.addFile("/e/withoutbase/sub/.clang-format", 0,
1244                  llvm::MemoryBuffer::getMemBuffer(
1245                      "BasedOnStyle: InheritParentConfig\nIndentWidth: 7")));
1246   // Make sure we do not use the fallback style
1247   Style9 = getStyle("file", "/e/withoutbase/code.cpp", "google", "", &FS);
1248   ASSERT_TRUE(static_cast<bool>(Style9));
1249   ASSERT_EQ(*Style9, [] {
1250     auto Style = getLLVMStyle();
1251     Style.ColumnLimit = 123;
1252     return Style;
1253   }());
1254 
1255   Style9 = getStyle("file", "/e/withoutbase/sub/code.cpp", "google", "", &FS);
1256   ASSERT_TRUE(static_cast<bool>(Style9));
1257   ASSERT_EQ(*Style9, [] {
1258     auto Style = getLLVMStyle();
1259     Style.ColumnLimit = 123;
1260     Style.IndentWidth = 7;
1261     return Style;
1262   }());
1263 
1264   // Test 9.9: use inheritance from a specific config file.
1265   Style9 = getStyle("file:/e/sub/sub/.clang-format", "/e/sub/sub/code.cpp",
1266                     "none", "", &FS);
1267   ASSERT_TRUE(static_cast<bool>(Style9));
1268   ASSERT_EQ(*Style9, SubSubStyle);
1269 }
1270 
1271 TEST(ConfigParseTest, GetStyleOfSpecificFile) {
1272   llvm::vfs::InMemoryFileSystem FS;
1273   // Specify absolute path to a format file in a parent directory.
1274   ASSERT_TRUE(
1275       FS.addFile("/e/.clang-format", 0,
1276                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1277   ASSERT_TRUE(
1278       FS.addFile("/e/explicit.clang-format", 0,
1279                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1280   ASSERT_TRUE(FS.addFile("/e/sub/sub/sub/test.cpp", 0,
1281                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1282   auto Style = getStyle("file:/e/explicit.clang-format",
1283                         "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1284   ASSERT_TRUE(static_cast<bool>(Style));
1285   ASSERT_EQ(*Style, getGoogleStyle());
1286 
1287   // Specify relative path to a format file.
1288   ASSERT_TRUE(
1289       FS.addFile("../../e/explicit.clang-format", 0,
1290                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1291   Style = getStyle("file:../../e/explicit.clang-format",
1292                    "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1293   ASSERT_TRUE(static_cast<bool>(Style));
1294   ASSERT_EQ(*Style, getGoogleStyle());
1295 
1296   // Specify path to a format file that does not exist.
1297   Style = getStyle("file:/e/missing.clang-format", "/e/sub/sub/sub/test.cpp",
1298                    "LLVM", "", &FS);
1299   ASSERT_FALSE(static_cast<bool>(Style));
1300   llvm::consumeError(Style.takeError());
1301 
1302   // Specify path to a file on the filesystem.
1303   SmallString<128> FormatFilePath;
1304   std::error_code ECF = llvm::sys::fs::createTemporaryFile(
1305       "FormatFileTest", "tpl", FormatFilePath);
1306   EXPECT_FALSE((bool)ECF);
1307   llvm::raw_fd_ostream FormatFileTest(FormatFilePath, ECF);
1308   EXPECT_FALSE((bool)ECF);
1309   FormatFileTest << "BasedOnStyle: Google\n";
1310   FormatFileTest.close();
1311 
1312   SmallString<128> TestFilePath;
1313   std::error_code ECT =
1314       llvm::sys::fs::createTemporaryFile("CodeFileTest", "cc", TestFilePath);
1315   EXPECT_FALSE((bool)ECT);
1316   llvm::raw_fd_ostream CodeFileTest(TestFilePath, ECT);
1317   CodeFileTest << "int i;\n";
1318   CodeFileTest.close();
1319 
1320   std::string format_file_arg = std::string("file:") + FormatFilePath.c_str();
1321   Style = getStyle(format_file_arg, TestFilePath, "LLVM", "", nullptr);
1322 
1323   llvm::sys::fs::remove(FormatFilePath.c_str());
1324   llvm::sys::fs::remove(TestFilePath.c_str());
1325   ASSERT_TRUE(static_cast<bool>(Style));
1326   ASSERT_EQ(*Style, getGoogleStyle());
1327 }
1328 
1329 } // namespace
1330 } // namespace format
1331 } // namespace clang
1332