xref: /llvm-project/clang/unittests/Format/ConfigParseTest.cpp (revision 617277e7cbdaea6881425c7a1a5b1cf4b1d4b507)
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(DeriveLineEnding);
159   CHECK_PARSE_BOOL(DerivePointerAlignment);
160   CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding");
161   CHECK_PARSE_BOOL(DisableFormat);
162   CHECK_PARSE_BOOL(IndentAccessModifiers);
163   CHECK_PARSE_BOOL(IndentCaseLabels);
164   CHECK_PARSE_BOOL(IndentCaseBlocks);
165   CHECK_PARSE_BOOL(IndentGotoLabels);
166   CHECK_PARSE_BOOL_FIELD(IndentRequiresClause, "IndentRequires");
167   CHECK_PARSE_BOOL(IndentRequiresClause);
168   CHECK_PARSE_BOOL(IndentWrappedFunctionNames);
169   CHECK_PARSE_BOOL(InsertBraces);
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(SortUsingDeclarations);
178   CHECK_PARSE_BOOL(SpacesInParentheses);
179   CHECK_PARSE_BOOL(SpacesInSquareBrackets);
180   CHECK_PARSE_BOOL(SpacesInConditionalStatement);
181   CHECK_PARSE_BOOL(SpaceInEmptyBlock);
182   CHECK_PARSE_BOOL(SpaceInEmptyParentheses);
183   CHECK_PARSE_BOOL(SpacesInContainerLiterals);
184   CHECK_PARSE_BOOL(SpacesInCStyleCastParentheses);
185   CHECK_PARSE_BOOL(SpaceAfterCStyleCast);
186   CHECK_PARSE_BOOL(SpaceAfterTemplateKeyword);
187   CHECK_PARSE_BOOL(SpaceAfterLogicalNot);
188   CHECK_PARSE_BOOL(SpaceBeforeAssignmentOperators);
189   CHECK_PARSE_BOOL(SpaceBeforeCaseColon);
190   CHECK_PARSE_BOOL(SpaceBeforeCpp11BracedList);
191   CHECK_PARSE_BOOL(SpaceBeforeCtorInitializerColon);
192   CHECK_PARSE_BOOL(SpaceBeforeInheritanceColon);
193   CHECK_PARSE_BOOL(SpaceBeforeRangeBasedForLoopColon);
194   CHECK_PARSE_BOOL(SpaceBeforeSquareBrackets);
195   CHECK_PARSE_BOOL(UseCRLF);
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   // For backward compatibility:
406   CHECK_PARSE("BasedOnStyle: Google\n"
407               "ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
408               "AllowAllConstructorInitializersOnNextLine: false",
409               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
410   Style.PackConstructorInitializers = FormatStyle::PCIS_NextLine;
411   CHECK_PARSE("BasedOnStyle: Google\n"
412               "ConstructorInitializerAllOnOneLineOrOnePerLine: false",
413               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
414   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
415               "AllowAllConstructorInitializersOnNextLine: true",
416               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
417   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
418   CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
419               "AllowAllConstructorInitializersOnNextLine: false",
420               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
421 
422   Style.EmptyLineBeforeAccessModifier = FormatStyle::ELBAMS_LogicalBlock;
423   CHECK_PARSE("EmptyLineBeforeAccessModifier: Never",
424               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Never);
425   CHECK_PARSE("EmptyLineBeforeAccessModifier: Leave",
426               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Leave);
427   CHECK_PARSE("EmptyLineBeforeAccessModifier: LogicalBlock",
428               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_LogicalBlock);
429   CHECK_PARSE("EmptyLineBeforeAccessModifier: Always",
430               EmptyLineBeforeAccessModifier, FormatStyle::ELBAMS_Always);
431 
432   Style.AlignAfterOpenBracket = FormatStyle::BAS_AlwaysBreak;
433   CHECK_PARSE("AlignAfterOpenBracket: Align", AlignAfterOpenBracket,
434               FormatStyle::BAS_Align);
435   CHECK_PARSE("AlignAfterOpenBracket: DontAlign", AlignAfterOpenBracket,
436               FormatStyle::BAS_DontAlign);
437   CHECK_PARSE("AlignAfterOpenBracket: AlwaysBreak", AlignAfterOpenBracket,
438               FormatStyle::BAS_AlwaysBreak);
439   CHECK_PARSE("AlignAfterOpenBracket: BlockIndent", AlignAfterOpenBracket,
440               FormatStyle::BAS_BlockIndent);
441   // For backward compatibility:
442   CHECK_PARSE("AlignAfterOpenBracket: false", AlignAfterOpenBracket,
443               FormatStyle::BAS_DontAlign);
444   CHECK_PARSE("AlignAfterOpenBracket: true", AlignAfterOpenBracket,
445               FormatStyle::BAS_Align);
446 
447   Style.AlignEscapedNewlines = FormatStyle::ENAS_Left;
448   CHECK_PARSE("AlignEscapedNewlines: DontAlign", AlignEscapedNewlines,
449               FormatStyle::ENAS_DontAlign);
450   CHECK_PARSE("AlignEscapedNewlines: Left", AlignEscapedNewlines,
451               FormatStyle::ENAS_Left);
452   CHECK_PARSE("AlignEscapedNewlines: Right", AlignEscapedNewlines,
453               FormatStyle::ENAS_Right);
454   // For backward compatibility:
455   CHECK_PARSE("AlignEscapedNewlinesLeft: true", AlignEscapedNewlines,
456               FormatStyle::ENAS_Left);
457   CHECK_PARSE("AlignEscapedNewlinesLeft: false", AlignEscapedNewlines,
458               FormatStyle::ENAS_Right);
459 
460   Style.AlignOperands = FormatStyle::OAS_Align;
461   CHECK_PARSE("AlignOperands: DontAlign", AlignOperands,
462               FormatStyle::OAS_DontAlign);
463   CHECK_PARSE("AlignOperands: Align", AlignOperands, FormatStyle::OAS_Align);
464   CHECK_PARSE("AlignOperands: AlignAfterOperator", AlignOperands,
465               FormatStyle::OAS_AlignAfterOperator);
466   // For backward compatibility:
467   CHECK_PARSE("AlignOperands: false", AlignOperands,
468               FormatStyle::OAS_DontAlign);
469   CHECK_PARSE("AlignOperands: true", AlignOperands, FormatStyle::OAS_Align);
470 
471   CHECK_PARSE("AlignTrailingComments: Leave", AlignTrailingComments,
472               FormatStyle::TrailingCommentsAlignmentStyle(
473                   {FormatStyle::TCAS_Leave, 1}));
474   CHECK_PARSE("AlignTrailingComments: Always", AlignTrailingComments,
475               FormatStyle::TrailingCommentsAlignmentStyle(
476                   {FormatStyle::TCAS_Always, 1}));
477   CHECK_PARSE("AlignTrailingComments: Never", AlignTrailingComments,
478               FormatStyle::TrailingCommentsAlignmentStyle(
479                   {FormatStyle::TCAS_Never, 1}));
480   // For backwards compatibility
481   CHECK_PARSE("AlignTrailingComments: true", AlignTrailingComments,
482               FormatStyle::TrailingCommentsAlignmentStyle(
483                   {FormatStyle::TCAS_Always, 1}));
484   CHECK_PARSE("AlignTrailingComments: false", AlignTrailingComments,
485               FormatStyle::TrailingCommentsAlignmentStyle(
486                   {FormatStyle::TCAS_Never, 1}));
487   CHECK_PARSE_NESTED_VALUE("Kind: Always", AlignTrailingComments, Kind,
488                            FormatStyle::TCAS_Always);
489   CHECK_PARSE_NESTED_VALUE("Kind: Never", AlignTrailingComments, Kind,
490                            FormatStyle::TCAS_Never);
491   CHECK_PARSE_NESTED_VALUE("Kind: Leave", AlignTrailingComments, Kind,
492                            FormatStyle::TCAS_Leave);
493   CHECK_PARSE_NESTED_VALUE("OverEmptyLines: 1234", AlignTrailingComments,
494                            OverEmptyLines, 1234u);
495 
496   Style.UseTab = FormatStyle::UT_ForIndentation;
497   CHECK_PARSE("UseTab: Never", UseTab, FormatStyle::UT_Never);
498   CHECK_PARSE("UseTab: ForIndentation", UseTab, FormatStyle::UT_ForIndentation);
499   CHECK_PARSE("UseTab: Always", UseTab, FormatStyle::UT_Always);
500   CHECK_PARSE("UseTab: ForContinuationAndIndentation", UseTab,
501               FormatStyle::UT_ForContinuationAndIndentation);
502   CHECK_PARSE("UseTab: AlignWithSpaces", UseTab,
503               FormatStyle::UT_AlignWithSpaces);
504   // For backward compatibility:
505   CHECK_PARSE("UseTab: false", UseTab, FormatStyle::UT_Never);
506   CHECK_PARSE("UseTab: true", UseTab, FormatStyle::UT_Always);
507 
508   Style.AllowShortBlocksOnASingleLine = FormatStyle::SBS_Empty;
509   CHECK_PARSE("AllowShortBlocksOnASingleLine: Never",
510               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
511   CHECK_PARSE("AllowShortBlocksOnASingleLine: Empty",
512               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Empty);
513   CHECK_PARSE("AllowShortBlocksOnASingleLine: Always",
514               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
515   // For backward compatibility:
516   CHECK_PARSE("AllowShortBlocksOnASingleLine: false",
517               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Never);
518   CHECK_PARSE("AllowShortBlocksOnASingleLine: true",
519               AllowShortBlocksOnASingleLine, FormatStyle::SBS_Always);
520 
521   Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;
522   CHECK_PARSE("AllowShortFunctionsOnASingleLine: None",
523               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
524   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Inline",
525               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Inline);
526   CHECK_PARSE("AllowShortFunctionsOnASingleLine: Empty",
527               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_Empty);
528   CHECK_PARSE("AllowShortFunctionsOnASingleLine: All",
529               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
530   // For backward compatibility:
531   CHECK_PARSE("AllowShortFunctionsOnASingleLine: false",
532               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_None);
533   CHECK_PARSE("AllowShortFunctionsOnASingleLine: true",
534               AllowShortFunctionsOnASingleLine, FormatStyle::SFS_All);
535 
536   Style.SpaceAroundPointerQualifiers = FormatStyle::SAPQ_Both;
537   CHECK_PARSE("SpaceAroundPointerQualifiers: Default",
538               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Default);
539   CHECK_PARSE("SpaceAroundPointerQualifiers: Before",
540               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Before);
541   CHECK_PARSE("SpaceAroundPointerQualifiers: After",
542               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_After);
543   CHECK_PARSE("SpaceAroundPointerQualifiers: Both",
544               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Both);
545 
546   Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
547   CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens,
548               FormatStyle::SBPO_Never);
549   CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens,
550               FormatStyle::SBPO_Always);
551   CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens,
552               FormatStyle::SBPO_ControlStatements);
553   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptControlMacros",
554               SpaceBeforeParens,
555               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
556   CHECK_PARSE("SpaceBeforeParens: NonEmptyParentheses", SpaceBeforeParens,
557               FormatStyle::SBPO_NonEmptyParentheses);
558   CHECK_PARSE("SpaceBeforeParens: Custom", SpaceBeforeParens,
559               FormatStyle::SBPO_Custom);
560   // For backward compatibility:
561   CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens,
562               FormatStyle::SBPO_Never);
563   CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens,
564               FormatStyle::SBPO_ControlStatements);
565   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptForEachMacros",
566               SpaceBeforeParens,
567               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
568 
569   Style.ColumnLimit = 123;
570   FormatStyle BaseStyle = getLLVMStyle();
571   CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit);
572   CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u);
573 
574   Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
575   CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces,
576               FormatStyle::BS_Attach);
577   CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces,
578               FormatStyle::BS_Linux);
579   CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces,
580               FormatStyle::BS_Mozilla);
581   CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces,
582               FormatStyle::BS_Stroustrup);
583   CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces,
584               FormatStyle::BS_Allman);
585   CHECK_PARSE("BreakBeforeBraces: Whitesmiths", BreakBeforeBraces,
586               FormatStyle::BS_Whitesmiths);
587   CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU);
588   CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces,
589               FormatStyle::BS_WebKit);
590   CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces,
591               FormatStyle::BS_Custom);
592 
593   Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Never;
594   CHECK_PARSE("BraceWrapping:\n"
595               "  AfterControlStatement: MultiLine",
596               BraceWrapping.AfterControlStatement,
597               FormatStyle::BWACS_MultiLine);
598   CHECK_PARSE("BraceWrapping:\n"
599               "  AfterControlStatement: Always",
600               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
601   CHECK_PARSE("BraceWrapping:\n"
602               "  AfterControlStatement: Never",
603               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
604   // For backward compatibility:
605   CHECK_PARSE("BraceWrapping:\n"
606               "  AfterControlStatement: true",
607               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
608   CHECK_PARSE("BraceWrapping:\n"
609               "  AfterControlStatement: false",
610               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
611 
612   Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All;
613   CHECK_PARSE("AlwaysBreakAfterReturnType: None", AlwaysBreakAfterReturnType,
614               FormatStyle::RTBS_None);
615   CHECK_PARSE("AlwaysBreakAfterReturnType: All", AlwaysBreakAfterReturnType,
616               FormatStyle::RTBS_All);
617   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel",
618               AlwaysBreakAfterReturnType, FormatStyle::RTBS_TopLevel);
619   CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions",
620               AlwaysBreakAfterReturnType, FormatStyle::RTBS_AllDefinitions);
621   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions",
622               AlwaysBreakAfterReturnType,
623               FormatStyle::RTBS_TopLevelDefinitions);
624 
625   Style.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_Yes;
626   CHECK_PARSE("AlwaysBreakTemplateDeclarations: No",
627               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_No);
628   CHECK_PARSE("AlwaysBreakTemplateDeclarations: MultiLine",
629               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
630   CHECK_PARSE("AlwaysBreakTemplateDeclarations: Yes",
631               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
632   CHECK_PARSE("AlwaysBreakTemplateDeclarations: false",
633               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
634   CHECK_PARSE("AlwaysBreakTemplateDeclarations: true",
635               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
636 
637   Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All;
638   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None",
639               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None);
640   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All",
641               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All);
642   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel",
643               AlwaysBreakAfterDefinitionReturnType,
644               FormatStyle::DRTBS_TopLevel);
645 
646   Style.NamespaceIndentation = FormatStyle::NI_All;
647   CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation,
648               FormatStyle::NI_None);
649   CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation,
650               FormatStyle::NI_Inner);
651   CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation,
652               FormatStyle::NI_All);
653 
654   Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_OnlyFirstIf;
655   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Never",
656               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
657   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: WithoutElse",
658               AllowShortIfStatementsOnASingleLine,
659               FormatStyle::SIS_WithoutElse);
660   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: OnlyFirstIf",
661               AllowShortIfStatementsOnASingleLine,
662               FormatStyle::SIS_OnlyFirstIf);
663   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: AllIfsAndElse",
664               AllowShortIfStatementsOnASingleLine,
665               FormatStyle::SIS_AllIfsAndElse);
666   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Always",
667               AllowShortIfStatementsOnASingleLine,
668               FormatStyle::SIS_OnlyFirstIf);
669   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: false",
670               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
671   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: true",
672               AllowShortIfStatementsOnASingleLine,
673               FormatStyle::SIS_WithoutElse);
674 
675   Style.IndentExternBlock = FormatStyle::IEBS_NoIndent;
676   CHECK_PARSE("IndentExternBlock: AfterExternBlock", IndentExternBlock,
677               FormatStyle::IEBS_AfterExternBlock);
678   CHECK_PARSE("IndentExternBlock: Indent", IndentExternBlock,
679               FormatStyle::IEBS_Indent);
680   CHECK_PARSE("IndentExternBlock: NoIndent", IndentExternBlock,
681               FormatStyle::IEBS_NoIndent);
682   CHECK_PARSE("IndentExternBlock: true", IndentExternBlock,
683               FormatStyle::IEBS_Indent);
684   CHECK_PARSE("IndentExternBlock: false", IndentExternBlock,
685               FormatStyle::IEBS_NoIndent);
686 
687   Style.BitFieldColonSpacing = FormatStyle::BFCS_None;
688   CHECK_PARSE("BitFieldColonSpacing: Both", BitFieldColonSpacing,
689               FormatStyle::BFCS_Both);
690   CHECK_PARSE("BitFieldColonSpacing: None", BitFieldColonSpacing,
691               FormatStyle::BFCS_None);
692   CHECK_PARSE("BitFieldColonSpacing: Before", BitFieldColonSpacing,
693               FormatStyle::BFCS_Before);
694   CHECK_PARSE("BitFieldColonSpacing: After", BitFieldColonSpacing,
695               FormatStyle::BFCS_After);
696 
697   Style.SortJavaStaticImport = FormatStyle::SJSIO_Before;
698   CHECK_PARSE("SortJavaStaticImport: After", SortJavaStaticImport,
699               FormatStyle::SJSIO_After);
700   CHECK_PARSE("SortJavaStaticImport: Before", SortJavaStaticImport,
701               FormatStyle::SJSIO_Before);
702 
703   // FIXME: This is required because parsing a configuration simply overwrites
704   // the first N elements of the list instead of resetting it.
705   Style.ForEachMacros.clear();
706   std::vector<std::string> BoostForeach;
707   BoostForeach.push_back("BOOST_FOREACH");
708   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach);
709   std::vector<std::string> BoostAndQForeach;
710   BoostAndQForeach.push_back("BOOST_FOREACH");
711   BoostAndQForeach.push_back("Q_FOREACH");
712   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros,
713               BoostAndQForeach);
714 
715   Style.IfMacros.clear();
716   std::vector<std::string> CustomIfs;
717   CustomIfs.push_back("MYIF");
718   CHECK_PARSE("IfMacros: [MYIF]", IfMacros, CustomIfs);
719 
720   Style.AttributeMacros.clear();
721   CHECK_PARSE("BasedOnStyle: LLVM", AttributeMacros,
722               std::vector<std::string>{"__capability"});
723   CHECK_PARSE("AttributeMacros: [attr1, attr2]", AttributeMacros,
724               std::vector<std::string>({"attr1", "attr2"}));
725 
726   Style.StatementAttributeLikeMacros.clear();
727   CHECK_PARSE("StatementAttributeLikeMacros: [emit,Q_EMIT]",
728               StatementAttributeLikeMacros,
729               std::vector<std::string>({"emit", "Q_EMIT"}));
730 
731   Style.StatementMacros.clear();
732   CHECK_PARSE("StatementMacros: [QUNUSED]", StatementMacros,
733               std::vector<std::string>{"QUNUSED"});
734   CHECK_PARSE("StatementMacros: [QUNUSED, QT_REQUIRE_VERSION]", StatementMacros,
735               std::vector<std::string>({"QUNUSED", "QT_REQUIRE_VERSION"}));
736 
737   Style.NamespaceMacros.clear();
738   CHECK_PARSE("NamespaceMacros: [TESTSUITE]", NamespaceMacros,
739               std::vector<std::string>{"TESTSUITE"});
740   CHECK_PARSE("NamespaceMacros: [TESTSUITE, SUITE]", NamespaceMacros,
741               std::vector<std::string>({"TESTSUITE", "SUITE"}));
742 
743   Style.WhitespaceSensitiveMacros.clear();
744   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE]",
745               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
746   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE, ASSERT]",
747               WhitespaceSensitiveMacros,
748               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
749   Style.WhitespaceSensitiveMacros.clear();
750   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE']",
751               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
752   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE', 'ASSERT']",
753               WhitespaceSensitiveMacros,
754               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
755 
756   Style.IncludeStyle.IncludeCategories.clear();
757   std::vector<tooling::IncludeStyle::IncludeCategory> ExpectedCategories = {
758       {"abc/.*", 2, 0, false}, {".*", 1, 0, true}};
759   CHECK_PARSE("IncludeCategories:\n"
760               "  - Regex: abc/.*\n"
761               "    Priority: 2\n"
762               "  - Regex: .*\n"
763               "    Priority: 1\n"
764               "    CaseSensitive: true\n",
765               IncludeStyle.IncludeCategories, ExpectedCategories);
766   CHECK_PARSE("IncludeIsMainRegex: 'abc$'", IncludeStyle.IncludeIsMainRegex,
767               "abc$");
768   CHECK_PARSE("IncludeIsMainSourceRegex: 'abc$'",
769               IncludeStyle.IncludeIsMainSourceRegex, "abc$");
770 
771   Style.SortIncludes = FormatStyle::SI_Never;
772   CHECK_PARSE("SortIncludes: true", SortIncludes,
773               FormatStyle::SI_CaseSensitive);
774   CHECK_PARSE("SortIncludes: false", SortIncludes, FormatStyle::SI_Never);
775   CHECK_PARSE("SortIncludes: CaseInsensitive", SortIncludes,
776               FormatStyle::SI_CaseInsensitive);
777   CHECK_PARSE("SortIncludes: CaseSensitive", SortIncludes,
778               FormatStyle::SI_CaseSensitive);
779   CHECK_PARSE("SortIncludes: Never", SortIncludes, FormatStyle::SI_Never);
780 
781   Style.RawStringFormats.clear();
782   std::vector<FormatStyle::RawStringFormat> ExpectedRawStringFormats = {
783       {
784           FormatStyle::LK_TextProto,
785           {"pb", "proto"},
786           {"PARSE_TEXT_PROTO"},
787           /*CanonicalDelimiter=*/"",
788           "llvm",
789       },
790       {
791           FormatStyle::LK_Cpp,
792           {"cc", "cpp"},
793           {"C_CODEBLOCK", "CPPEVAL"},
794           /*CanonicalDelimiter=*/"cc",
795           /*BasedOnStyle=*/"",
796       },
797   };
798 
799   CHECK_PARSE("RawStringFormats:\n"
800               "  - Language: TextProto\n"
801               "    Delimiters:\n"
802               "      - 'pb'\n"
803               "      - 'proto'\n"
804               "    EnclosingFunctions:\n"
805               "      - 'PARSE_TEXT_PROTO'\n"
806               "    BasedOnStyle: llvm\n"
807               "  - Language: Cpp\n"
808               "    Delimiters:\n"
809               "      - 'cc'\n"
810               "      - 'cpp'\n"
811               "    EnclosingFunctions:\n"
812               "      - 'C_CODEBLOCK'\n"
813               "      - 'CPPEVAL'\n"
814               "    CanonicalDelimiter: 'cc'",
815               RawStringFormats, ExpectedRawStringFormats);
816 
817   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
818               "  Minimum: 0\n"
819               "  Maximum: 0",
820               SpacesInLineCommentPrefix.Minimum, 0u);
821   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Maximum, 0u);
822   Style.SpacesInLineCommentPrefix.Minimum = 1;
823   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
824               "  Minimum: 2",
825               SpacesInLineCommentPrefix.Minimum, 0u);
826   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
827               "  Maximum: -1",
828               SpacesInLineCommentPrefix.Maximum, -1u);
829   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
830               "  Minimum: 2",
831               SpacesInLineCommentPrefix.Minimum, 2u);
832   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
833               "  Maximum: 1",
834               SpacesInLineCommentPrefix.Maximum, 1u);
835   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Minimum, 1u);
836 
837   Style.SpacesInAngles = FormatStyle::SIAS_Always;
838   CHECK_PARSE("SpacesInAngles: Never", SpacesInAngles, FormatStyle::SIAS_Never);
839   CHECK_PARSE("SpacesInAngles: Always", SpacesInAngles,
840               FormatStyle::SIAS_Always);
841   CHECK_PARSE("SpacesInAngles: Leave", SpacesInAngles, FormatStyle::SIAS_Leave);
842   // For backward compatibility:
843   CHECK_PARSE("SpacesInAngles: false", SpacesInAngles, FormatStyle::SIAS_Never);
844   CHECK_PARSE("SpacesInAngles: true", SpacesInAngles, FormatStyle::SIAS_Always);
845 
846   CHECK_PARSE("RequiresClausePosition: WithPreceding", RequiresClausePosition,
847               FormatStyle::RCPS_WithPreceding);
848   CHECK_PARSE("RequiresClausePosition: WithFollowing", RequiresClausePosition,
849               FormatStyle::RCPS_WithFollowing);
850   CHECK_PARSE("RequiresClausePosition: SingleLine", RequiresClausePosition,
851               FormatStyle::RCPS_SingleLine);
852   CHECK_PARSE("RequiresClausePosition: OwnLine", RequiresClausePosition,
853               FormatStyle::RCPS_OwnLine);
854 
855   CHECK_PARSE("BreakBeforeConceptDeclarations: Never",
856               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Never);
857   CHECK_PARSE("BreakBeforeConceptDeclarations: Always",
858               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
859   CHECK_PARSE("BreakBeforeConceptDeclarations: Allowed",
860               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
861   // For backward compatibility:
862   CHECK_PARSE("BreakBeforeConceptDeclarations: true",
863               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
864   CHECK_PARSE("BreakBeforeConceptDeclarations: false",
865               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
866 }
867 
868 TEST(ConfigParseTest, ParsesConfigurationWithLanguages) {
869   FormatStyle Style = {};
870   Style.Language = FormatStyle::LK_Cpp;
871   CHECK_PARSE("Language: Cpp\n"
872               "IndentWidth: 12",
873               IndentWidth, 12u);
874   EXPECT_EQ(parseConfiguration("Language: JavaScript\n"
875                                "IndentWidth: 34",
876                                &Style),
877             ParseError::Unsuitable);
878   FormatStyle BinPackedTCS = {};
879   BinPackedTCS.Language = FormatStyle::LK_JavaScript;
880   EXPECT_EQ(parseConfiguration("BinPackArguments: true\n"
881                                "InsertTrailingCommas: Wrapped",
882                                &BinPackedTCS),
883             ParseError::BinPackTrailingCommaConflict);
884   EXPECT_EQ(12u, Style.IndentWidth);
885   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
886   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
887 
888   Style.Language = FormatStyle::LK_JavaScript;
889   CHECK_PARSE("Language: JavaScript\n"
890               "IndentWidth: 12",
891               IndentWidth, 12u);
892   CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u);
893   EXPECT_EQ(parseConfiguration("Language: Cpp\n"
894                                "IndentWidth: 34",
895                                &Style),
896             ParseError::Unsuitable);
897   EXPECT_EQ(23u, Style.IndentWidth);
898   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
899   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
900 
901   CHECK_PARSE("BasedOnStyle: LLVM\n"
902               "IndentWidth: 67",
903               IndentWidth, 67u);
904 
905   CHECK_PARSE("---\n"
906               "Language: JavaScript\n"
907               "IndentWidth: 12\n"
908               "---\n"
909               "Language: Cpp\n"
910               "IndentWidth: 34\n"
911               "...\n",
912               IndentWidth, 12u);
913 
914   Style.Language = FormatStyle::LK_Cpp;
915   CHECK_PARSE("---\n"
916               "Language: JavaScript\n"
917               "IndentWidth: 12\n"
918               "---\n"
919               "Language: Cpp\n"
920               "IndentWidth: 34\n"
921               "...\n",
922               IndentWidth, 34u);
923   CHECK_PARSE("---\n"
924               "IndentWidth: 78\n"
925               "---\n"
926               "Language: JavaScript\n"
927               "IndentWidth: 56\n"
928               "...\n",
929               IndentWidth, 78u);
930 
931   Style.ColumnLimit = 123;
932   Style.IndentWidth = 234;
933   Style.BreakBeforeBraces = FormatStyle::BS_Linux;
934   Style.TabWidth = 345;
935   EXPECT_FALSE(parseConfiguration("---\n"
936                                   "IndentWidth: 456\n"
937                                   "BreakBeforeBraces: Allman\n"
938                                   "---\n"
939                                   "Language: JavaScript\n"
940                                   "IndentWidth: 111\n"
941                                   "TabWidth: 111\n"
942                                   "---\n"
943                                   "Language: Cpp\n"
944                                   "BreakBeforeBraces: Stroustrup\n"
945                                   "TabWidth: 789\n"
946                                   "...\n",
947                                   &Style));
948   EXPECT_EQ(123u, Style.ColumnLimit);
949   EXPECT_EQ(456u, Style.IndentWidth);
950   EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces);
951   EXPECT_EQ(789u, Style.TabWidth);
952 
953   EXPECT_EQ(parseConfiguration("---\n"
954                                "Language: JavaScript\n"
955                                "IndentWidth: 56\n"
956                                "---\n"
957                                "IndentWidth: 78\n"
958                                "...\n",
959                                &Style),
960             ParseError::Error);
961   EXPECT_EQ(parseConfiguration("---\n"
962                                "Language: JavaScript\n"
963                                "IndentWidth: 56\n"
964                                "---\n"
965                                "Language: JavaScript\n"
966                                "IndentWidth: 78\n"
967                                "...\n",
968                                &Style),
969             ParseError::Error);
970 
971   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
972 }
973 
974 TEST(ConfigParseTest, UsesLanguageForBasedOnStyle) {
975   FormatStyle Style = {};
976   Style.Language = FormatStyle::LK_JavaScript;
977   Style.BreakBeforeTernaryOperators = true;
978   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value());
979   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
980 
981   Style.BreakBeforeTernaryOperators = true;
982   EXPECT_EQ(0, parseConfiguration("---\n"
983                                   "BasedOnStyle: Google\n"
984                                   "---\n"
985                                   "Language: JavaScript\n"
986                                   "IndentWidth: 76\n"
987                                   "...\n",
988                                   &Style)
989                    .value());
990   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
991   EXPECT_EQ(76u, Style.IndentWidth);
992   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
993 }
994 
995 TEST(ConfigParseTest, ConfigurationRoundTripTest) {
996   FormatStyle Style = getLLVMStyle();
997   std::string YAML = configurationAsText(Style);
998   FormatStyle ParsedStyle = {};
999   ParsedStyle.Language = FormatStyle::LK_Cpp;
1000   EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value());
1001   EXPECT_EQ(Style, ParsedStyle);
1002 }
1003 
1004 TEST(ConfigParseTest, GetStyleWithEmptyFileName) {
1005   llvm::vfs::InMemoryFileSystem FS;
1006   auto Style1 = getStyle("file", "", "Google", "", &FS);
1007   ASSERT_TRUE((bool)Style1);
1008   ASSERT_EQ(*Style1, getGoogleStyle());
1009 }
1010 
1011 TEST(ConfigParseTest, GetStyleOfFile) {
1012   llvm::vfs::InMemoryFileSystem FS;
1013   // Test 1: format file in the same directory.
1014   ASSERT_TRUE(
1015       FS.addFile("/a/.clang-format", 0,
1016                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1017   ASSERT_TRUE(
1018       FS.addFile("/a/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1019   auto Style1 = getStyle("file", "/a/.clang-format", "Google", "", &FS);
1020   ASSERT_TRUE((bool)Style1);
1021   ASSERT_EQ(*Style1, getLLVMStyle());
1022 
1023   // Test 2.1: fallback to default.
1024   ASSERT_TRUE(
1025       FS.addFile("/b/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1026   auto Style2 = getStyle("file", "/b/test.cpp", "Mozilla", "", &FS);
1027   ASSERT_TRUE((bool)Style2);
1028   ASSERT_EQ(*Style2, getMozillaStyle());
1029 
1030   // Test 2.2: no format on 'none' fallback style.
1031   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1032   ASSERT_TRUE((bool)Style2);
1033   ASSERT_EQ(*Style2, getNoStyle());
1034 
1035   // Test 2.3: format if config is found with no based style while fallback is
1036   // 'none'.
1037   ASSERT_TRUE(FS.addFile("/b/.clang-format", 0,
1038                          llvm::MemoryBuffer::getMemBuffer("IndentWidth: 2")));
1039   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1040   ASSERT_TRUE((bool)Style2);
1041   ASSERT_EQ(*Style2, getLLVMStyle());
1042 
1043   // Test 2.4: format if yaml with no based style, while fallback is 'none'.
1044   Style2 = getStyle("{}", "a.h", "none", "", &FS);
1045   ASSERT_TRUE((bool)Style2);
1046   ASSERT_EQ(*Style2, getLLVMStyle());
1047 
1048   // Test 3: format file in parent directory.
1049   ASSERT_TRUE(
1050       FS.addFile("/c/.clang-format", 0,
1051                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1052   ASSERT_TRUE(FS.addFile("/c/sub/sub/sub/test.cpp", 0,
1053                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1054   auto Style3 = getStyle("file", "/c/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1055   ASSERT_TRUE((bool)Style3);
1056   ASSERT_EQ(*Style3, getGoogleStyle());
1057 
1058   // Test 4: error on invalid fallback style
1059   auto Style4 = getStyle("file", "a.h", "KungFu", "", &FS);
1060   ASSERT_FALSE((bool)Style4);
1061   llvm::consumeError(Style4.takeError());
1062 
1063   // Test 5: error on invalid yaml on command line
1064   auto Style5 = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS);
1065   ASSERT_FALSE((bool)Style5);
1066   llvm::consumeError(Style5.takeError());
1067 
1068   // Test 6: error on invalid style
1069   auto Style6 = getStyle("KungFu", "a.h", "LLVM", "", &FS);
1070   ASSERT_FALSE((bool)Style6);
1071   llvm::consumeError(Style6.takeError());
1072 
1073   // Test 7: found config file, error on parsing it
1074   ASSERT_TRUE(
1075       FS.addFile("/d/.clang-format", 0,
1076                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM\n"
1077                                                   "InvalidKey: InvalidValue")));
1078   ASSERT_TRUE(
1079       FS.addFile("/d/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1080   auto Style7a = getStyle("file", "/d/.clang-format", "LLVM", "", &FS);
1081   ASSERT_FALSE((bool)Style7a);
1082   llvm::consumeError(Style7a.takeError());
1083 
1084   auto Style7b = getStyle("file", "/d/.clang-format", "LLVM", "", &FS, true);
1085   ASSERT_TRUE((bool)Style7b);
1086 
1087   // Test 8: inferred per-language defaults apply.
1088   auto StyleTd = getStyle("file", "x.td", "llvm", "", &FS);
1089   ASSERT_TRUE((bool)StyleTd);
1090   ASSERT_EQ(*StyleTd, getLLVMStyle(FormatStyle::LK_TableGen));
1091 
1092   // Test 9.1.1: overwriting a file style, when no parent file exists with no
1093   // fallback style.
1094   ASSERT_TRUE(FS.addFile(
1095       "/e/sub/.clang-format", 0,
1096       llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: InheritParentConfig\n"
1097                                        "ColumnLimit: 20")));
1098   ASSERT_TRUE(FS.addFile("/e/sub/code.cpp", 0,
1099                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1100   auto Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1101   ASSERT_TRUE(static_cast<bool>(Style9));
1102   ASSERT_EQ(*Style9, [] {
1103     auto Style = getNoStyle();
1104     Style.ColumnLimit = 20;
1105     return Style;
1106   }());
1107 
1108   // Test 9.1.2: propagate more than one level with no parent file.
1109   ASSERT_TRUE(FS.addFile("/e/sub/sub/code.cpp", 0,
1110                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1111   ASSERT_TRUE(FS.addFile("/e/sub/sub/.clang-format", 0,
1112                          llvm::MemoryBuffer::getMemBuffer(
1113                              "BasedOnStyle: InheritParentConfig\n"
1114                              "WhitespaceSensitiveMacros: ['FOO', 'BAR']")));
1115   std::vector<std::string> NonDefaultWhiteSpaceMacros =
1116       Style9->WhitespaceSensitiveMacros;
1117   NonDefaultWhiteSpaceMacros[0] = "FOO";
1118   NonDefaultWhiteSpaceMacros[1] = "BAR";
1119 
1120   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1121   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1122   ASSERT_TRUE(static_cast<bool>(Style9));
1123   ASSERT_EQ(*Style9, [&NonDefaultWhiteSpaceMacros] {
1124     auto Style = getNoStyle();
1125     Style.ColumnLimit = 20;
1126     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1127     return Style;
1128   }());
1129 
1130   // Test 9.2: with LLVM fallback style
1131   Style9 = getStyle("file", "/e/sub/code.cpp", "LLVM", "", &FS);
1132   ASSERT_TRUE(static_cast<bool>(Style9));
1133   ASSERT_EQ(*Style9, [] {
1134     auto Style = getLLVMStyle();
1135     Style.ColumnLimit = 20;
1136     return Style;
1137   }());
1138 
1139   // Test 9.3: with a parent file
1140   ASSERT_TRUE(
1141       FS.addFile("/e/.clang-format", 0,
1142                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google\n"
1143                                                   "UseTab: Always")));
1144   Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1145   ASSERT_TRUE(static_cast<bool>(Style9));
1146   ASSERT_EQ(*Style9, [] {
1147     auto Style = getGoogleStyle();
1148     Style.ColumnLimit = 20;
1149     Style.UseTab = FormatStyle::UT_Always;
1150     return Style;
1151   }());
1152 
1153   // Test 9.4: propagate more than one level with a parent file.
1154   const auto SubSubStyle = [&NonDefaultWhiteSpaceMacros] {
1155     auto Style = getGoogleStyle();
1156     Style.ColumnLimit = 20;
1157     Style.UseTab = FormatStyle::UT_Always;
1158     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1159     return Style;
1160   }();
1161 
1162   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1163   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1164   ASSERT_TRUE(static_cast<bool>(Style9));
1165   ASSERT_EQ(*Style9, SubSubStyle);
1166 
1167   // Test 9.5: use InheritParentConfig as style name
1168   Style9 =
1169       getStyle("inheritparentconfig", "/e/sub/sub/code.cpp", "none", "", &FS);
1170   ASSERT_TRUE(static_cast<bool>(Style9));
1171   ASSERT_EQ(*Style9, SubSubStyle);
1172 
1173   // Test 9.6: use command line style with inheritance
1174   Style9 = getStyle("{BasedOnStyle: InheritParentConfig}",
1175                     "/e/sub/sub/code.cpp", "none", "", &FS);
1176   ASSERT_TRUE(static_cast<bool>(Style9));
1177   ASSERT_EQ(*Style9, SubSubStyle);
1178 
1179   // Test 9.7: use command line style with inheritance and own config
1180   Style9 = getStyle("{BasedOnStyle: InheritParentConfig, "
1181                     "WhitespaceSensitiveMacros: ['FOO', 'BAR']}",
1182                     "/e/sub/code.cpp", "none", "", &FS);
1183   ASSERT_TRUE(static_cast<bool>(Style9));
1184   ASSERT_EQ(*Style9, SubSubStyle);
1185 
1186   // Test 9.8: use inheritance from a file without BasedOnStyle
1187   ASSERT_TRUE(FS.addFile("/e/withoutbase/.clang-format", 0,
1188                          llvm::MemoryBuffer::getMemBuffer("ColumnLimit: 123")));
1189   ASSERT_TRUE(
1190       FS.addFile("/e/withoutbase/sub/.clang-format", 0,
1191                  llvm::MemoryBuffer::getMemBuffer(
1192                      "BasedOnStyle: InheritParentConfig\nIndentWidth: 7")));
1193   // Make sure we do not use the fallback style
1194   Style9 = getStyle("file", "/e/withoutbase/code.cpp", "google", "", &FS);
1195   ASSERT_TRUE(static_cast<bool>(Style9));
1196   ASSERT_EQ(*Style9, [] {
1197     auto Style = getLLVMStyle();
1198     Style.ColumnLimit = 123;
1199     return Style;
1200   }());
1201 
1202   Style9 = getStyle("file", "/e/withoutbase/sub/code.cpp", "google", "", &FS);
1203   ASSERT_TRUE(static_cast<bool>(Style9));
1204   ASSERT_EQ(*Style9, [] {
1205     auto Style = getLLVMStyle();
1206     Style.ColumnLimit = 123;
1207     Style.IndentWidth = 7;
1208     return Style;
1209   }());
1210 
1211   // Test 9.9: use inheritance from a specific config file.
1212   Style9 = getStyle("file:/e/sub/sub/.clang-format", "/e/sub/sub/code.cpp",
1213                     "none", "", &FS);
1214   ASSERT_TRUE(static_cast<bool>(Style9));
1215   ASSERT_EQ(*Style9, SubSubStyle);
1216 }
1217 
1218 TEST(ConfigParseTest, GetStyleOfSpecificFile) {
1219   llvm::vfs::InMemoryFileSystem FS;
1220   // Specify absolute path to a format file in a parent directory.
1221   ASSERT_TRUE(
1222       FS.addFile("/e/.clang-format", 0,
1223                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1224   ASSERT_TRUE(
1225       FS.addFile("/e/explicit.clang-format", 0,
1226                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1227   ASSERT_TRUE(FS.addFile("/e/sub/sub/sub/test.cpp", 0,
1228                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1229   auto Style = getStyle("file:/e/explicit.clang-format",
1230                         "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1231   ASSERT_TRUE(static_cast<bool>(Style));
1232   ASSERT_EQ(*Style, getGoogleStyle());
1233 
1234   // Specify relative path to a format file.
1235   ASSERT_TRUE(
1236       FS.addFile("../../e/explicit.clang-format", 0,
1237                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1238   Style = getStyle("file:../../e/explicit.clang-format",
1239                    "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1240   ASSERT_TRUE(static_cast<bool>(Style));
1241   ASSERT_EQ(*Style, getGoogleStyle());
1242 
1243   // Specify path to a format file that does not exist.
1244   Style = getStyle("file:/e/missing.clang-format", "/e/sub/sub/sub/test.cpp",
1245                    "LLVM", "", &FS);
1246   ASSERT_FALSE(static_cast<bool>(Style));
1247   llvm::consumeError(Style.takeError());
1248 
1249   // Specify path to a file on the filesystem.
1250   SmallString<128> FormatFilePath;
1251   std::error_code ECF = llvm::sys::fs::createTemporaryFile(
1252       "FormatFileTest", "tpl", FormatFilePath);
1253   EXPECT_FALSE((bool)ECF);
1254   llvm::raw_fd_ostream FormatFileTest(FormatFilePath, ECF);
1255   EXPECT_FALSE((bool)ECF);
1256   FormatFileTest << "BasedOnStyle: Google\n";
1257   FormatFileTest.close();
1258 
1259   SmallString<128> TestFilePath;
1260   std::error_code ECT =
1261       llvm::sys::fs::createTemporaryFile("CodeFileTest", "cc", TestFilePath);
1262   EXPECT_FALSE((bool)ECT);
1263   llvm::raw_fd_ostream CodeFileTest(TestFilePath, ECT);
1264   CodeFileTest << "int i;\n";
1265   CodeFileTest.close();
1266 
1267   std::string format_file_arg = std::string("file:") + FormatFilePath.c_str();
1268   Style = getStyle(format_file_arg, TestFilePath, "LLVM", "", nullptr);
1269 
1270   llvm::sys::fs::remove(FormatFilePath.c_str());
1271   llvm::sys::fs::remove(TestFilePath.c_str());
1272   ASSERT_TRUE(static_cast<bool>(Style));
1273   ASSERT_EQ(*Style, getGoogleStyle());
1274 }
1275 
1276 } // namespace
1277 } // namespace format
1278 } // namespace clang
1279