xref: /llvm-project/clang/unittests/Format/ConfigParseTest.cpp (revision c24cdd58a1445e9741d89137f18f1ec9c89ecead)
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(SpaceBeforeRangeBasedForLoopColon);
193   CHECK_PARSE_BOOL(SpaceBeforeSquareBrackets);
194 
195   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterCaseLabel);
196   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass);
197   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterEnum);
198   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterFunction);
199   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterNamespace);
200   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterObjCDeclaration);
201   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterStruct);
202   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterUnion);
203   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterExternBlock);
204   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeCatch);
205   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeElse);
206   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeLambdaBody);
207   CHECK_PARSE_NESTED_BOOL(BraceWrapping, BeforeWhile);
208   CHECK_PARSE_NESTED_BOOL(BraceWrapping, IndentBraces);
209   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyFunction);
210   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyRecord);
211   CHECK_PARSE_NESTED_BOOL(BraceWrapping, SplitEmptyNamespace);
212   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterControlStatements);
213   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterForeachMacros);
214   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions,
215                           AfterFunctionDeclarationName);
216   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions,
217                           AfterFunctionDefinitionName);
218   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterIfMacros);
219   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, AfterOverloadedOperator);
220   CHECK_PARSE_NESTED_BOOL(SpaceBeforeParensOptions, BeforeNonEmptyParentheses);
221 }
222 
223 #undef CHECK_PARSE_BOOL
224 
225 TEST(ConfigParseTest, ParsesConfiguration) {
226   FormatStyle Style = {};
227   Style.Language = FormatStyle::LK_Cpp;
228   CHECK_PARSE("AccessModifierOffset: -1234", AccessModifierOffset, -1234);
229   CHECK_PARSE("ConstructorInitializerIndentWidth: 1234",
230               ConstructorInitializerIndentWidth, 1234u);
231   CHECK_PARSE("ObjCBlockIndentWidth: 1234", ObjCBlockIndentWidth, 1234u);
232   CHECK_PARSE("ColumnLimit: 1234", ColumnLimit, 1234u);
233   CHECK_PARSE("MaxEmptyLinesToKeep: 1234", MaxEmptyLinesToKeep, 1234u);
234   CHECK_PARSE("PenaltyBreakAssignment: 1234", PenaltyBreakAssignment, 1234u);
235   CHECK_PARSE("PenaltyBreakBeforeFirstCallParameter: 1234",
236               PenaltyBreakBeforeFirstCallParameter, 1234u);
237   CHECK_PARSE("PenaltyBreakTemplateDeclaration: 1234",
238               PenaltyBreakTemplateDeclaration, 1234u);
239   CHECK_PARSE("PenaltyBreakOpenParenthesis: 1234", PenaltyBreakOpenParenthesis,
240               1234u);
241   CHECK_PARSE("PenaltyExcessCharacter: 1234", PenaltyExcessCharacter, 1234u);
242   CHECK_PARSE("PenaltyReturnTypeOnItsOwnLine: 1234",
243               PenaltyReturnTypeOnItsOwnLine, 1234u);
244   CHECK_PARSE("SpacesBeforeTrailingComments: 1234",
245               SpacesBeforeTrailingComments, 1234u);
246   CHECK_PARSE("IndentWidth: 32", IndentWidth, 32u);
247   CHECK_PARSE("ContinuationIndentWidth: 11", ContinuationIndentWidth, 11u);
248   CHECK_PARSE("CommentPragmas: '// abc$'", CommentPragmas, "// abc$");
249 
250   Style.QualifierAlignment = FormatStyle::QAS_Right;
251   CHECK_PARSE("QualifierAlignment: Leave", QualifierAlignment,
252               FormatStyle::QAS_Leave);
253   CHECK_PARSE("QualifierAlignment: Right", QualifierAlignment,
254               FormatStyle::QAS_Right);
255   CHECK_PARSE("QualifierAlignment: Left", QualifierAlignment,
256               FormatStyle::QAS_Left);
257   CHECK_PARSE("QualifierAlignment: Custom", QualifierAlignment,
258               FormatStyle::QAS_Custom);
259 
260   Style.QualifierOrder.clear();
261   CHECK_PARSE("QualifierOrder: [ const, volatile, type ]", QualifierOrder,
262               std::vector<std::string>({"const", "volatile", "type"}));
263   Style.QualifierOrder.clear();
264   CHECK_PARSE("QualifierOrder: [const, type]", QualifierOrder,
265               std::vector<std::string>({"const", "type"}));
266   Style.QualifierOrder.clear();
267   CHECK_PARSE("QualifierOrder: [volatile, type]", QualifierOrder,
268               std::vector<std::string>({"volatile", "type"}));
269 
270 #define CHECK_ALIGN_CONSECUTIVE(FIELD)                                         \
271   do {                                                                         \
272     Style.FIELD.Enabled = true;                                                \
273     CHECK_PARSE(#FIELD ": None", FIELD,                                        \
274                 FormatStyle::AlignConsecutiveStyle(                            \
275                     {/*Enabled=*/false, /*AcrossEmptyLines=*/false,            \
276                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
277                      /*PadOperators=*/true}));                                 \
278     CHECK_PARSE(#FIELD ": Consecutive", FIELD,                                 \
279                 FormatStyle::AlignConsecutiveStyle(                            \
280                     {/*Enabled=*/true, /*AcrossEmptyLines=*/false,             \
281                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
282                      /*PadOperators=*/true}));                                 \
283     CHECK_PARSE(#FIELD ": AcrossEmptyLines", FIELD,                            \
284                 FormatStyle::AlignConsecutiveStyle(                            \
285                     {/*Enabled=*/true, /*AcrossEmptyLines=*/true,              \
286                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
287                      /*PadOperators=*/true}));                                 \
288     CHECK_PARSE(#FIELD ": AcrossEmptyLinesAndComments", FIELD,                 \
289                 FormatStyle::AlignConsecutiveStyle(                            \
290                     {/*Enabled=*/true, /*AcrossEmptyLines=*/true,              \
291                      /*AcrossComments=*/true, /*AlignCompound=*/false,         \
292                      /*PadOperators=*/true}));                                 \
293     /* For backwards compability, false / true should still parse */           \
294     CHECK_PARSE(#FIELD ": false", FIELD,                                       \
295                 FormatStyle::AlignConsecutiveStyle(                            \
296                     {/*Enabled=*/false, /*AcrossEmptyLines=*/false,            \
297                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
298                      /*PadOperators=*/true}));                                 \
299     CHECK_PARSE(#FIELD ": true", FIELD,                                        \
300                 FormatStyle::AlignConsecutiveStyle(                            \
301                     {/*Enabled=*/true, /*AcrossEmptyLines=*/false,             \
302                      /*AcrossComments=*/false, /*AlignCompound=*/false,        \
303                      /*PadOperators=*/true}));                                 \
304                                                                                \
305     CHECK_PARSE_NESTED_BOOL(FIELD, Enabled);                                   \
306     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossEmptyLines);                          \
307     CHECK_PARSE_NESTED_BOOL(FIELD, AcrossComments);                            \
308     CHECK_PARSE_NESTED_BOOL(FIELD, AlignCompound);                             \
309     CHECK_PARSE_NESTED_BOOL(FIELD, PadOperators);                              \
310   } while (false)
311 
312   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveAssignments);
313   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveBitFields);
314   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveMacros);
315   CHECK_ALIGN_CONSECUTIVE(AlignConsecutiveDeclarations);
316 
317 #undef CHECK_ALIGN_CONSECUTIVE
318 
319   Style.PointerAlignment = FormatStyle::PAS_Middle;
320   CHECK_PARSE("PointerAlignment: Left", PointerAlignment,
321               FormatStyle::PAS_Left);
322   CHECK_PARSE("PointerAlignment: Right", PointerAlignment,
323               FormatStyle::PAS_Right);
324   CHECK_PARSE("PointerAlignment: Middle", PointerAlignment,
325               FormatStyle::PAS_Middle);
326   Style.ReferenceAlignment = FormatStyle::RAS_Middle;
327   CHECK_PARSE("ReferenceAlignment: Pointer", ReferenceAlignment,
328               FormatStyle::RAS_Pointer);
329   CHECK_PARSE("ReferenceAlignment: Left", ReferenceAlignment,
330               FormatStyle::RAS_Left);
331   CHECK_PARSE("ReferenceAlignment: Right", ReferenceAlignment,
332               FormatStyle::RAS_Right);
333   CHECK_PARSE("ReferenceAlignment: Middle", ReferenceAlignment,
334               FormatStyle::RAS_Middle);
335   // For backward compatibility:
336   CHECK_PARSE("PointerBindsToType: Left", PointerAlignment,
337               FormatStyle::PAS_Left);
338   CHECK_PARSE("PointerBindsToType: Right", PointerAlignment,
339               FormatStyle::PAS_Right);
340   CHECK_PARSE("PointerBindsToType: Middle", PointerAlignment,
341               FormatStyle::PAS_Middle);
342 
343   Style.Standard = FormatStyle::LS_Auto;
344   CHECK_PARSE("Standard: c++03", Standard, FormatStyle::LS_Cpp03);
345   CHECK_PARSE("Standard: c++11", Standard, FormatStyle::LS_Cpp11);
346   CHECK_PARSE("Standard: c++14", Standard, FormatStyle::LS_Cpp14);
347   CHECK_PARSE("Standard: c++17", Standard, FormatStyle::LS_Cpp17);
348   CHECK_PARSE("Standard: c++20", Standard, FormatStyle::LS_Cpp20);
349   CHECK_PARSE("Standard: Auto", Standard, FormatStyle::LS_Auto);
350   CHECK_PARSE("Standard: Latest", Standard, FormatStyle::LS_Latest);
351   // Legacy aliases:
352   CHECK_PARSE("Standard: Cpp03", Standard, FormatStyle::LS_Cpp03);
353   CHECK_PARSE("Standard: Cpp11", Standard, FormatStyle::LS_Latest);
354   CHECK_PARSE("Standard: C++03", Standard, FormatStyle::LS_Cpp03);
355   CHECK_PARSE("Standard: C++11", Standard, FormatStyle::LS_Cpp11);
356 
357   Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
358   CHECK_PARSE("BreakBeforeBinaryOperators: NonAssignment",
359               BreakBeforeBinaryOperators, FormatStyle::BOS_NonAssignment);
360   CHECK_PARSE("BreakBeforeBinaryOperators: None", BreakBeforeBinaryOperators,
361               FormatStyle::BOS_None);
362   CHECK_PARSE("BreakBeforeBinaryOperators: All", BreakBeforeBinaryOperators,
363               FormatStyle::BOS_All);
364   // For backward compatibility:
365   CHECK_PARSE("BreakBeforeBinaryOperators: false", BreakBeforeBinaryOperators,
366               FormatStyle::BOS_None);
367   CHECK_PARSE("BreakBeforeBinaryOperators: true", BreakBeforeBinaryOperators,
368               FormatStyle::BOS_All);
369 
370   Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeColon;
371   CHECK_PARSE("BreakConstructorInitializers: BeforeComma",
372               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
373   CHECK_PARSE("BreakConstructorInitializers: AfterColon",
374               BreakConstructorInitializers, FormatStyle::BCIS_AfterColon);
375   CHECK_PARSE("BreakConstructorInitializers: BeforeColon",
376               BreakConstructorInitializers, FormatStyle::BCIS_BeforeColon);
377   // For backward compatibility:
378   CHECK_PARSE("BreakConstructorInitializersBeforeComma: true",
379               BreakConstructorInitializers, FormatStyle::BCIS_BeforeComma);
380 
381   Style.BreakInheritanceList = FormatStyle::BILS_BeforeColon;
382   CHECK_PARSE("BreakInheritanceList: AfterComma", BreakInheritanceList,
383               FormatStyle::BILS_AfterComma);
384   CHECK_PARSE("BreakInheritanceList: BeforeComma", BreakInheritanceList,
385               FormatStyle::BILS_BeforeComma);
386   CHECK_PARSE("BreakInheritanceList: AfterColon", BreakInheritanceList,
387               FormatStyle::BILS_AfterColon);
388   CHECK_PARSE("BreakInheritanceList: BeforeColon", BreakInheritanceList,
389               FormatStyle::BILS_BeforeColon);
390   // For backward compatibility:
391   CHECK_PARSE("BreakBeforeInheritanceComma: true", BreakInheritanceList,
392               FormatStyle::BILS_BeforeComma);
393 
394   Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
395   CHECK_PARSE("PackConstructorInitializers: Never", PackConstructorInitializers,
396               FormatStyle::PCIS_Never);
397   CHECK_PARSE("PackConstructorInitializers: BinPack",
398               PackConstructorInitializers, FormatStyle::PCIS_BinPack);
399   CHECK_PARSE("PackConstructorInitializers: CurrentLine",
400               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
401   CHECK_PARSE("PackConstructorInitializers: NextLine",
402               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
403   CHECK_PARSE("PackConstructorInitializers: NextLineOnly",
404               PackConstructorInitializers, FormatStyle::PCIS_NextLineOnly);
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.AllowShortLambdasOnASingleLine = FormatStyle::SLS_All;
537   CHECK_PARSE("AllowShortLambdasOnASingleLine: None",
538               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
539   CHECK_PARSE("AllowShortLambdasOnASingleLine: Empty",
540               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Empty);
541   CHECK_PARSE("AllowShortLambdasOnASingleLine: Inline",
542               AllowShortLambdasOnASingleLine, FormatStyle::SLS_Inline);
543   CHECK_PARSE("AllowShortLambdasOnASingleLine: All",
544               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
545   // For backward compatibility:
546   CHECK_PARSE("AllowShortLambdasOnASingleLine: false",
547               AllowShortLambdasOnASingleLine, FormatStyle::SLS_None);
548   CHECK_PARSE("AllowShortLambdasOnASingleLine: true",
549               AllowShortLambdasOnASingleLine, FormatStyle::SLS_All);
550 
551   Style.SpaceAroundPointerQualifiers = FormatStyle::SAPQ_Both;
552   CHECK_PARSE("SpaceAroundPointerQualifiers: Default",
553               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Default);
554   CHECK_PARSE("SpaceAroundPointerQualifiers: Before",
555               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Before);
556   CHECK_PARSE("SpaceAroundPointerQualifiers: After",
557               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_After);
558   CHECK_PARSE("SpaceAroundPointerQualifiers: Both",
559               SpaceAroundPointerQualifiers, FormatStyle::SAPQ_Both);
560 
561   Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
562   CHECK_PARSE("SpaceBeforeParens: Never", SpaceBeforeParens,
563               FormatStyle::SBPO_Never);
564   CHECK_PARSE("SpaceBeforeParens: Always", SpaceBeforeParens,
565               FormatStyle::SBPO_Always);
566   CHECK_PARSE("SpaceBeforeParens: ControlStatements", SpaceBeforeParens,
567               FormatStyle::SBPO_ControlStatements);
568   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptControlMacros",
569               SpaceBeforeParens,
570               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
571   CHECK_PARSE("SpaceBeforeParens: NonEmptyParentheses", SpaceBeforeParens,
572               FormatStyle::SBPO_NonEmptyParentheses);
573   CHECK_PARSE("SpaceBeforeParens: Custom", SpaceBeforeParens,
574               FormatStyle::SBPO_Custom);
575   // For backward compatibility:
576   CHECK_PARSE("SpaceAfterControlStatementKeyword: false", SpaceBeforeParens,
577               FormatStyle::SBPO_Never);
578   CHECK_PARSE("SpaceAfterControlStatementKeyword: true", SpaceBeforeParens,
579               FormatStyle::SBPO_ControlStatements);
580   CHECK_PARSE("SpaceBeforeParens: ControlStatementsExceptForEachMacros",
581               SpaceBeforeParens,
582               FormatStyle::SBPO_ControlStatementsExceptControlMacros);
583 
584   Style.ColumnLimit = 123;
585   FormatStyle BaseStyle = getLLVMStyle();
586   CHECK_PARSE("BasedOnStyle: LLVM", ColumnLimit, BaseStyle.ColumnLimit);
587   CHECK_PARSE("BasedOnStyle: LLVM\nColumnLimit: 1234", ColumnLimit, 1234u);
588 
589   Style.BreakBeforeBraces = FormatStyle::BS_Stroustrup;
590   CHECK_PARSE("BreakBeforeBraces: Attach", BreakBeforeBraces,
591               FormatStyle::BS_Attach);
592   CHECK_PARSE("BreakBeforeBraces: Linux", BreakBeforeBraces,
593               FormatStyle::BS_Linux);
594   CHECK_PARSE("BreakBeforeBraces: Mozilla", BreakBeforeBraces,
595               FormatStyle::BS_Mozilla);
596   CHECK_PARSE("BreakBeforeBraces: Stroustrup", BreakBeforeBraces,
597               FormatStyle::BS_Stroustrup);
598   CHECK_PARSE("BreakBeforeBraces: Allman", BreakBeforeBraces,
599               FormatStyle::BS_Allman);
600   CHECK_PARSE("BreakBeforeBraces: Whitesmiths", BreakBeforeBraces,
601               FormatStyle::BS_Whitesmiths);
602   CHECK_PARSE("BreakBeforeBraces: GNU", BreakBeforeBraces, FormatStyle::BS_GNU);
603   CHECK_PARSE("BreakBeforeBraces: WebKit", BreakBeforeBraces,
604               FormatStyle::BS_WebKit);
605   CHECK_PARSE("BreakBeforeBraces: Custom", BreakBeforeBraces,
606               FormatStyle::BS_Custom);
607 
608   Style.BraceWrapping.AfterControlStatement = FormatStyle::BWACS_Never;
609   CHECK_PARSE("BraceWrapping:\n"
610               "  AfterControlStatement: MultiLine",
611               BraceWrapping.AfterControlStatement,
612               FormatStyle::BWACS_MultiLine);
613   CHECK_PARSE("BraceWrapping:\n"
614               "  AfterControlStatement: Always",
615               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
616   CHECK_PARSE("BraceWrapping:\n"
617               "  AfterControlStatement: Never",
618               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
619   // For backward compatibility:
620   CHECK_PARSE("BraceWrapping:\n"
621               "  AfterControlStatement: true",
622               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Always);
623   CHECK_PARSE("BraceWrapping:\n"
624               "  AfterControlStatement: false",
625               BraceWrapping.AfterControlStatement, FormatStyle::BWACS_Never);
626 
627   Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_All;
628   CHECK_PARSE("AlwaysBreakAfterReturnType: None", AlwaysBreakAfterReturnType,
629               FormatStyle::RTBS_None);
630   CHECK_PARSE("AlwaysBreakAfterReturnType: All", AlwaysBreakAfterReturnType,
631               FormatStyle::RTBS_All);
632   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevel",
633               AlwaysBreakAfterReturnType, FormatStyle::RTBS_TopLevel);
634   CHECK_PARSE("AlwaysBreakAfterReturnType: AllDefinitions",
635               AlwaysBreakAfterReturnType, FormatStyle::RTBS_AllDefinitions);
636   CHECK_PARSE("AlwaysBreakAfterReturnType: TopLevelDefinitions",
637               AlwaysBreakAfterReturnType,
638               FormatStyle::RTBS_TopLevelDefinitions);
639 
640   Style.AlwaysBreakTemplateDeclarations = FormatStyle::BTDS_Yes;
641   CHECK_PARSE("AlwaysBreakTemplateDeclarations: No",
642               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_No);
643   CHECK_PARSE("AlwaysBreakTemplateDeclarations: MultiLine",
644               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
645   CHECK_PARSE("AlwaysBreakTemplateDeclarations: Yes",
646               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
647   CHECK_PARSE("AlwaysBreakTemplateDeclarations: false",
648               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_MultiLine);
649   CHECK_PARSE("AlwaysBreakTemplateDeclarations: true",
650               AlwaysBreakTemplateDeclarations, FormatStyle::BTDS_Yes);
651 
652   Style.AlwaysBreakAfterDefinitionReturnType = FormatStyle::DRTBS_All;
653   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: None",
654               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_None);
655   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: All",
656               AlwaysBreakAfterDefinitionReturnType, FormatStyle::DRTBS_All);
657   CHECK_PARSE("AlwaysBreakAfterDefinitionReturnType: TopLevel",
658               AlwaysBreakAfterDefinitionReturnType,
659               FormatStyle::DRTBS_TopLevel);
660 
661   Style.NamespaceIndentation = FormatStyle::NI_All;
662   CHECK_PARSE("NamespaceIndentation: None", NamespaceIndentation,
663               FormatStyle::NI_None);
664   CHECK_PARSE("NamespaceIndentation: Inner", NamespaceIndentation,
665               FormatStyle::NI_Inner);
666   CHECK_PARSE("NamespaceIndentation: All", NamespaceIndentation,
667               FormatStyle::NI_All);
668 
669   Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_OnlyFirstIf;
670   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Never",
671               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
672   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: WithoutElse",
673               AllowShortIfStatementsOnASingleLine,
674               FormatStyle::SIS_WithoutElse);
675   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: OnlyFirstIf",
676               AllowShortIfStatementsOnASingleLine,
677               FormatStyle::SIS_OnlyFirstIf);
678   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: AllIfsAndElse",
679               AllowShortIfStatementsOnASingleLine,
680               FormatStyle::SIS_AllIfsAndElse);
681   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: Always",
682               AllowShortIfStatementsOnASingleLine,
683               FormatStyle::SIS_OnlyFirstIf);
684   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: false",
685               AllowShortIfStatementsOnASingleLine, FormatStyle::SIS_Never);
686   CHECK_PARSE("AllowShortIfStatementsOnASingleLine: true",
687               AllowShortIfStatementsOnASingleLine,
688               FormatStyle::SIS_WithoutElse);
689 
690   Style.IndentExternBlock = FormatStyle::IEBS_NoIndent;
691   CHECK_PARSE("IndentExternBlock: AfterExternBlock", IndentExternBlock,
692               FormatStyle::IEBS_AfterExternBlock);
693   CHECK_PARSE("IndentExternBlock: Indent", IndentExternBlock,
694               FormatStyle::IEBS_Indent);
695   CHECK_PARSE("IndentExternBlock: NoIndent", IndentExternBlock,
696               FormatStyle::IEBS_NoIndent);
697   CHECK_PARSE("IndentExternBlock: true", IndentExternBlock,
698               FormatStyle::IEBS_Indent);
699   CHECK_PARSE("IndentExternBlock: false", IndentExternBlock,
700               FormatStyle::IEBS_NoIndent);
701 
702   Style.BitFieldColonSpacing = FormatStyle::BFCS_None;
703   CHECK_PARSE("BitFieldColonSpacing: Both", BitFieldColonSpacing,
704               FormatStyle::BFCS_Both);
705   CHECK_PARSE("BitFieldColonSpacing: None", BitFieldColonSpacing,
706               FormatStyle::BFCS_None);
707   CHECK_PARSE("BitFieldColonSpacing: Before", BitFieldColonSpacing,
708               FormatStyle::BFCS_Before);
709   CHECK_PARSE("BitFieldColonSpacing: After", BitFieldColonSpacing,
710               FormatStyle::BFCS_After);
711 
712   Style.SortJavaStaticImport = FormatStyle::SJSIO_Before;
713   CHECK_PARSE("SortJavaStaticImport: After", SortJavaStaticImport,
714               FormatStyle::SJSIO_After);
715   CHECK_PARSE("SortJavaStaticImport: Before", SortJavaStaticImport,
716               FormatStyle::SJSIO_Before);
717 
718   Style.SortUsingDeclarations = FormatStyle::SUD_LexicographicNumeric;
719   CHECK_PARSE("SortUsingDeclarations: Never", SortUsingDeclarations,
720               FormatStyle::SUD_Never);
721   CHECK_PARSE("SortUsingDeclarations: Lexicographic", SortUsingDeclarations,
722               FormatStyle::SUD_Lexicographic);
723   CHECK_PARSE("SortUsingDeclarations: LexicographicNumeric",
724               SortUsingDeclarations, FormatStyle::SUD_LexicographicNumeric);
725   // For backward compatibility:
726   CHECK_PARSE("SortUsingDeclarations: false", SortUsingDeclarations,
727               FormatStyle::SUD_Never);
728   CHECK_PARSE("SortUsingDeclarations: true", SortUsingDeclarations,
729               FormatStyle::SUD_LexicographicNumeric);
730 
731   // FIXME: This is required because parsing a configuration simply overwrites
732   // the first N elements of the list instead of resetting it.
733   Style.ForEachMacros.clear();
734   std::vector<std::string> BoostForeach;
735   BoostForeach.push_back("BOOST_FOREACH");
736   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH]", ForEachMacros, BoostForeach);
737   std::vector<std::string> BoostAndQForeach;
738   BoostAndQForeach.push_back("BOOST_FOREACH");
739   BoostAndQForeach.push_back("Q_FOREACH");
740   CHECK_PARSE("ForEachMacros: [BOOST_FOREACH, Q_FOREACH]", ForEachMacros,
741               BoostAndQForeach);
742 
743   Style.IfMacros.clear();
744   std::vector<std::string> CustomIfs;
745   CustomIfs.push_back("MYIF");
746   CHECK_PARSE("IfMacros: [MYIF]", IfMacros, CustomIfs);
747 
748   Style.AttributeMacros.clear();
749   CHECK_PARSE("BasedOnStyle: LLVM", AttributeMacros,
750               std::vector<std::string>{"__capability"});
751   CHECK_PARSE("AttributeMacros: [attr1, attr2]", AttributeMacros,
752               std::vector<std::string>({"attr1", "attr2"}));
753 
754   Style.StatementAttributeLikeMacros.clear();
755   CHECK_PARSE("StatementAttributeLikeMacros: [emit,Q_EMIT]",
756               StatementAttributeLikeMacros,
757               std::vector<std::string>({"emit", "Q_EMIT"}));
758 
759   Style.StatementMacros.clear();
760   CHECK_PARSE("StatementMacros: [QUNUSED]", StatementMacros,
761               std::vector<std::string>{"QUNUSED"});
762   CHECK_PARSE("StatementMacros: [QUNUSED, QT_REQUIRE_VERSION]", StatementMacros,
763               std::vector<std::string>({"QUNUSED", "QT_REQUIRE_VERSION"}));
764 
765   Style.NamespaceMacros.clear();
766   CHECK_PARSE("NamespaceMacros: [TESTSUITE]", NamespaceMacros,
767               std::vector<std::string>{"TESTSUITE"});
768   CHECK_PARSE("NamespaceMacros: [TESTSUITE, SUITE]", NamespaceMacros,
769               std::vector<std::string>({"TESTSUITE", "SUITE"}));
770 
771   Style.WhitespaceSensitiveMacros.clear();
772   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE]",
773               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
774   CHECK_PARSE("WhitespaceSensitiveMacros: [STRINGIZE, ASSERT]",
775               WhitespaceSensitiveMacros,
776               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
777   Style.WhitespaceSensitiveMacros.clear();
778   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE']",
779               WhitespaceSensitiveMacros, std::vector<std::string>{"STRINGIZE"});
780   CHECK_PARSE("WhitespaceSensitiveMacros: ['STRINGIZE', 'ASSERT']",
781               WhitespaceSensitiveMacros,
782               std::vector<std::string>({"STRINGIZE", "ASSERT"}));
783 
784   Style.IncludeStyle.IncludeCategories.clear();
785   std::vector<tooling::IncludeStyle::IncludeCategory> ExpectedCategories = {
786       {"abc/.*", 2, 0, false}, {".*", 1, 0, true}};
787   CHECK_PARSE("IncludeCategories:\n"
788               "  - Regex: abc/.*\n"
789               "    Priority: 2\n"
790               "  - Regex: .*\n"
791               "    Priority: 1\n"
792               "    CaseSensitive: true\n",
793               IncludeStyle.IncludeCategories, ExpectedCategories);
794   CHECK_PARSE("IncludeIsMainRegex: 'abc$'", IncludeStyle.IncludeIsMainRegex,
795               "abc$");
796   CHECK_PARSE("IncludeIsMainSourceRegex: 'abc$'",
797               IncludeStyle.IncludeIsMainSourceRegex, "abc$");
798 
799   Style.SortIncludes = FormatStyle::SI_Never;
800   CHECK_PARSE("SortIncludes: true", SortIncludes,
801               FormatStyle::SI_CaseSensitive);
802   CHECK_PARSE("SortIncludes: false", SortIncludes, FormatStyle::SI_Never);
803   CHECK_PARSE("SortIncludes: CaseInsensitive", SortIncludes,
804               FormatStyle::SI_CaseInsensitive);
805   CHECK_PARSE("SortIncludes: CaseSensitive", SortIncludes,
806               FormatStyle::SI_CaseSensitive);
807   CHECK_PARSE("SortIncludes: Never", SortIncludes, FormatStyle::SI_Never);
808 
809   Style.RawStringFormats.clear();
810   std::vector<FormatStyle::RawStringFormat> ExpectedRawStringFormats = {
811       {
812           FormatStyle::LK_TextProto,
813           {"pb", "proto"},
814           {"PARSE_TEXT_PROTO"},
815           /*CanonicalDelimiter=*/"",
816           "llvm",
817       },
818       {
819           FormatStyle::LK_Cpp,
820           {"cc", "cpp"},
821           {"C_CODEBLOCK", "CPPEVAL"},
822           /*CanonicalDelimiter=*/"cc",
823           /*BasedOnStyle=*/"",
824       },
825   };
826 
827   CHECK_PARSE("RawStringFormats:\n"
828               "  - Language: TextProto\n"
829               "    Delimiters:\n"
830               "      - 'pb'\n"
831               "      - 'proto'\n"
832               "    EnclosingFunctions:\n"
833               "      - 'PARSE_TEXT_PROTO'\n"
834               "    BasedOnStyle: llvm\n"
835               "  - Language: Cpp\n"
836               "    Delimiters:\n"
837               "      - 'cc'\n"
838               "      - 'cpp'\n"
839               "    EnclosingFunctions:\n"
840               "      - 'C_CODEBLOCK'\n"
841               "      - 'CPPEVAL'\n"
842               "    CanonicalDelimiter: 'cc'",
843               RawStringFormats, ExpectedRawStringFormats);
844 
845   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
846               "  Minimum: 0\n"
847               "  Maximum: 0",
848               SpacesInLineCommentPrefix.Minimum, 0u);
849   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Maximum, 0u);
850   Style.SpacesInLineCommentPrefix.Minimum = 1;
851   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
852               "  Minimum: 2",
853               SpacesInLineCommentPrefix.Minimum, 0u);
854   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
855               "  Maximum: -1",
856               SpacesInLineCommentPrefix.Maximum, -1u);
857   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
858               "  Minimum: 2",
859               SpacesInLineCommentPrefix.Minimum, 2u);
860   CHECK_PARSE("SpacesInLineCommentPrefix:\n"
861               "  Maximum: 1",
862               SpacesInLineCommentPrefix.Maximum, 1u);
863   EXPECT_EQ(Style.SpacesInLineCommentPrefix.Minimum, 1u);
864 
865   Style.SpacesInAngles = FormatStyle::SIAS_Always;
866   CHECK_PARSE("SpacesInAngles: Never", SpacesInAngles, FormatStyle::SIAS_Never);
867   CHECK_PARSE("SpacesInAngles: Always", SpacesInAngles,
868               FormatStyle::SIAS_Always);
869   CHECK_PARSE("SpacesInAngles: Leave", SpacesInAngles, FormatStyle::SIAS_Leave);
870   // For backward compatibility:
871   CHECK_PARSE("SpacesInAngles: false", SpacesInAngles, FormatStyle::SIAS_Never);
872   CHECK_PARSE("SpacesInAngles: true", SpacesInAngles, FormatStyle::SIAS_Always);
873 
874   CHECK_PARSE("RequiresClausePosition: WithPreceding", RequiresClausePosition,
875               FormatStyle::RCPS_WithPreceding);
876   CHECK_PARSE("RequiresClausePosition: WithFollowing", RequiresClausePosition,
877               FormatStyle::RCPS_WithFollowing);
878   CHECK_PARSE("RequiresClausePosition: SingleLine", RequiresClausePosition,
879               FormatStyle::RCPS_SingleLine);
880   CHECK_PARSE("RequiresClausePosition: OwnLine", RequiresClausePosition,
881               FormatStyle::RCPS_OwnLine);
882 
883   CHECK_PARSE("BreakBeforeConceptDeclarations: Never",
884               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Never);
885   CHECK_PARSE("BreakBeforeConceptDeclarations: Always",
886               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
887   CHECK_PARSE("BreakBeforeConceptDeclarations: Allowed",
888               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
889   // For backward compatibility:
890   CHECK_PARSE("BreakBeforeConceptDeclarations: true",
891               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Always);
892   CHECK_PARSE("BreakBeforeConceptDeclarations: false",
893               BreakBeforeConceptDeclarations, FormatStyle::BBCDS_Allowed);
894 
895   CHECK_PARSE("BreakAfterAttributes: Always", BreakAfterAttributes,
896               FormatStyle::ABS_Always);
897   CHECK_PARSE("BreakAfterAttributes: Leave", BreakAfterAttributes,
898               FormatStyle::ABS_Leave);
899   CHECK_PARSE("BreakAfterAttributes: Never", BreakAfterAttributes,
900               FormatStyle::ABS_Never);
901 
902   const auto DefaultLineEnding = FormatStyle::LE_DeriveLF;
903   CHECK_PARSE("LineEnding: LF", LineEnding, FormatStyle::LE_LF);
904   CHECK_PARSE("LineEnding: CRLF", LineEnding, FormatStyle::LE_CRLF);
905   CHECK_PARSE("LineEnding: DeriveCRLF", LineEnding, FormatStyle::LE_DeriveCRLF);
906   CHECK_PARSE("LineEnding: DeriveLF", LineEnding, DefaultLineEnding);
907   // For backward compatibility:
908   CHECK_PARSE("DeriveLineEnding: false", LineEnding, FormatStyle::LE_LF);
909   Style.LineEnding = DefaultLineEnding;
910   CHECK_PARSE("DeriveLineEnding: false\n"
911               "UseCRLF: true",
912               LineEnding, FormatStyle::LE_CRLF);
913   Style.LineEnding = DefaultLineEnding;
914   CHECK_PARSE("UseCRLF: true", LineEnding, FormatStyle::LE_DeriveCRLF);
915 }
916 
917 TEST(ConfigParseTest, ParsesConfigurationWithLanguages) {
918   FormatStyle Style = {};
919   Style.Language = FormatStyle::LK_Cpp;
920   CHECK_PARSE("Language: Cpp\n"
921               "IndentWidth: 12",
922               IndentWidth, 12u);
923   EXPECT_EQ(parseConfiguration("Language: JavaScript\n"
924                                "IndentWidth: 34",
925                                &Style),
926             ParseError::Unsuitable);
927   FormatStyle BinPackedTCS = {};
928   BinPackedTCS.Language = FormatStyle::LK_JavaScript;
929   EXPECT_EQ(parseConfiguration("BinPackArguments: true\n"
930                                "InsertTrailingCommas: Wrapped",
931                                &BinPackedTCS),
932             ParseError::BinPackTrailingCommaConflict);
933   EXPECT_EQ(12u, Style.IndentWidth);
934   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
935   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
936 
937   Style.Language = FormatStyle::LK_JavaScript;
938   CHECK_PARSE("Language: JavaScript\n"
939               "IndentWidth: 12",
940               IndentWidth, 12u);
941   CHECK_PARSE("IndentWidth: 23", IndentWidth, 23u);
942   EXPECT_EQ(parseConfiguration("Language: Cpp\n"
943                                "IndentWidth: 34",
944                                &Style),
945             ParseError::Unsuitable);
946   EXPECT_EQ(23u, Style.IndentWidth);
947   CHECK_PARSE("IndentWidth: 56", IndentWidth, 56u);
948   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
949 
950   CHECK_PARSE("BasedOnStyle: LLVM\n"
951               "IndentWidth: 67",
952               IndentWidth, 67u);
953 
954   CHECK_PARSE("---\n"
955               "Language: JavaScript\n"
956               "IndentWidth: 12\n"
957               "---\n"
958               "Language: Cpp\n"
959               "IndentWidth: 34\n"
960               "...\n",
961               IndentWidth, 12u);
962 
963   Style.Language = FormatStyle::LK_Cpp;
964   CHECK_PARSE("---\n"
965               "Language: JavaScript\n"
966               "IndentWidth: 12\n"
967               "---\n"
968               "Language: Cpp\n"
969               "IndentWidth: 34\n"
970               "...\n",
971               IndentWidth, 34u);
972   CHECK_PARSE("---\n"
973               "IndentWidth: 78\n"
974               "---\n"
975               "Language: JavaScript\n"
976               "IndentWidth: 56\n"
977               "...\n",
978               IndentWidth, 78u);
979 
980   Style.ColumnLimit = 123;
981   Style.IndentWidth = 234;
982   Style.BreakBeforeBraces = FormatStyle::BS_Linux;
983   Style.TabWidth = 345;
984   EXPECT_FALSE(parseConfiguration("---\n"
985                                   "IndentWidth: 456\n"
986                                   "BreakBeforeBraces: Allman\n"
987                                   "---\n"
988                                   "Language: JavaScript\n"
989                                   "IndentWidth: 111\n"
990                                   "TabWidth: 111\n"
991                                   "---\n"
992                                   "Language: Cpp\n"
993                                   "BreakBeforeBraces: Stroustrup\n"
994                                   "TabWidth: 789\n"
995                                   "...\n",
996                                   &Style));
997   EXPECT_EQ(123u, Style.ColumnLimit);
998   EXPECT_EQ(456u, Style.IndentWidth);
999   EXPECT_EQ(FormatStyle::BS_Stroustrup, Style.BreakBeforeBraces);
1000   EXPECT_EQ(789u, Style.TabWidth);
1001 
1002   EXPECT_EQ(parseConfiguration("---\n"
1003                                "Language: JavaScript\n"
1004                                "IndentWidth: 56\n"
1005                                "---\n"
1006                                "IndentWidth: 78\n"
1007                                "...\n",
1008                                &Style),
1009             ParseError::Error);
1010   EXPECT_EQ(parseConfiguration("---\n"
1011                                "Language: JavaScript\n"
1012                                "IndentWidth: 56\n"
1013                                "---\n"
1014                                "Language: JavaScript\n"
1015                                "IndentWidth: 78\n"
1016                                "...\n",
1017                                &Style),
1018             ParseError::Error);
1019 
1020   EXPECT_EQ(FormatStyle::LK_Cpp, Style.Language);
1021 }
1022 
1023 TEST(ConfigParseTest, UsesLanguageForBasedOnStyle) {
1024   FormatStyle Style = {};
1025   Style.Language = FormatStyle::LK_JavaScript;
1026   Style.BreakBeforeTernaryOperators = true;
1027   EXPECT_EQ(0, parseConfiguration("BasedOnStyle: Google", &Style).value());
1028   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1029 
1030   Style.BreakBeforeTernaryOperators = true;
1031   EXPECT_EQ(0, parseConfiguration("---\n"
1032                                   "BasedOnStyle: Google\n"
1033                                   "---\n"
1034                                   "Language: JavaScript\n"
1035                                   "IndentWidth: 76\n"
1036                                   "...\n",
1037                                   &Style)
1038                    .value());
1039   EXPECT_FALSE(Style.BreakBeforeTernaryOperators);
1040   EXPECT_EQ(76u, Style.IndentWidth);
1041   EXPECT_EQ(FormatStyle::LK_JavaScript, Style.Language);
1042 }
1043 
1044 TEST(ConfigParseTest, ConfigurationRoundTripTest) {
1045   FormatStyle Style = getLLVMStyle();
1046   std::string YAML = configurationAsText(Style);
1047   FormatStyle ParsedStyle = {};
1048   ParsedStyle.Language = FormatStyle::LK_Cpp;
1049   EXPECT_EQ(0, parseConfiguration(YAML, &ParsedStyle).value());
1050   EXPECT_EQ(Style, ParsedStyle);
1051 }
1052 
1053 TEST(ConfigParseTest, GetStyleWithEmptyFileName) {
1054   llvm::vfs::InMemoryFileSystem FS;
1055   auto Style1 = getStyle("file", "", "Google", "", &FS);
1056   ASSERT_TRUE((bool)Style1);
1057   ASSERT_EQ(*Style1, getGoogleStyle());
1058 }
1059 
1060 TEST(ConfigParseTest, GetStyleOfFile) {
1061   llvm::vfs::InMemoryFileSystem FS;
1062   // Test 1: format file in the same directory.
1063   ASSERT_TRUE(
1064       FS.addFile("/a/.clang-format", 0,
1065                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1066   ASSERT_TRUE(
1067       FS.addFile("/a/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1068   auto Style1 = getStyle("file", "/a/.clang-format", "Google", "", &FS);
1069   ASSERT_TRUE((bool)Style1);
1070   ASSERT_EQ(*Style1, getLLVMStyle());
1071 
1072   // Test 2.1: fallback to default.
1073   ASSERT_TRUE(
1074       FS.addFile("/b/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1075   auto Style2 = getStyle("file", "/b/test.cpp", "Mozilla", "", &FS);
1076   ASSERT_TRUE((bool)Style2);
1077   ASSERT_EQ(*Style2, getMozillaStyle());
1078 
1079   // Test 2.2: no format on 'none' fallback style.
1080   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1081   ASSERT_TRUE((bool)Style2);
1082   ASSERT_EQ(*Style2, getNoStyle());
1083 
1084   // Test 2.3: format if config is found with no based style while fallback is
1085   // 'none'.
1086   ASSERT_TRUE(FS.addFile("/b/.clang-format", 0,
1087                          llvm::MemoryBuffer::getMemBuffer("IndentWidth: 2")));
1088   Style2 = getStyle("file", "/b/test.cpp", "none", "", &FS);
1089   ASSERT_TRUE((bool)Style2);
1090   ASSERT_EQ(*Style2, getLLVMStyle());
1091 
1092   // Test 2.4: format if yaml with no based style, while fallback is 'none'.
1093   Style2 = getStyle("{}", "a.h", "none", "", &FS);
1094   ASSERT_TRUE((bool)Style2);
1095   ASSERT_EQ(*Style2, getLLVMStyle());
1096 
1097   // Test 3: format file in parent directory.
1098   ASSERT_TRUE(
1099       FS.addFile("/c/.clang-format", 0,
1100                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1101   ASSERT_TRUE(FS.addFile("/c/sub/sub/sub/test.cpp", 0,
1102                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1103   auto Style3 = getStyle("file", "/c/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1104   ASSERT_TRUE((bool)Style3);
1105   ASSERT_EQ(*Style3, getGoogleStyle());
1106 
1107   // Test 4: error on invalid fallback style
1108   auto Style4 = getStyle("file", "a.h", "KungFu", "", &FS);
1109   ASSERT_FALSE((bool)Style4);
1110   llvm::consumeError(Style4.takeError());
1111 
1112   // Test 5: error on invalid yaml on command line
1113   auto Style5 = getStyle("{invalid_key=invalid_value}", "a.h", "LLVM", "", &FS);
1114   ASSERT_FALSE((bool)Style5);
1115   llvm::consumeError(Style5.takeError());
1116 
1117   // Test 6: error on invalid style
1118   auto Style6 = getStyle("KungFu", "a.h", "LLVM", "", &FS);
1119   ASSERT_FALSE((bool)Style6);
1120   llvm::consumeError(Style6.takeError());
1121 
1122   // Test 7: found config file, error on parsing it
1123   ASSERT_TRUE(
1124       FS.addFile("/d/.clang-format", 0,
1125                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM\n"
1126                                                   "InvalidKey: InvalidValue")));
1127   ASSERT_TRUE(
1128       FS.addFile("/d/test.cpp", 0, llvm::MemoryBuffer::getMemBuffer("int i;")));
1129   auto Style7a = getStyle("file", "/d/.clang-format", "LLVM", "", &FS);
1130   ASSERT_FALSE((bool)Style7a);
1131   llvm::consumeError(Style7a.takeError());
1132 
1133   auto Style7b = getStyle("file", "/d/.clang-format", "LLVM", "", &FS, true);
1134   ASSERT_TRUE((bool)Style7b);
1135 
1136   // Test 8: inferred per-language defaults apply.
1137   auto StyleTd = getStyle("file", "x.td", "llvm", "", &FS);
1138   ASSERT_TRUE((bool)StyleTd);
1139   ASSERT_EQ(*StyleTd, getLLVMStyle(FormatStyle::LK_TableGen));
1140 
1141   // Test 9.1.1: overwriting a file style, when no parent file exists with no
1142   // fallback style.
1143   ASSERT_TRUE(FS.addFile(
1144       "/e/sub/.clang-format", 0,
1145       llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: InheritParentConfig\n"
1146                                        "ColumnLimit: 20")));
1147   ASSERT_TRUE(FS.addFile("/e/sub/code.cpp", 0,
1148                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1149   auto Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1150   ASSERT_TRUE(static_cast<bool>(Style9));
1151   ASSERT_EQ(*Style9, [] {
1152     auto Style = getNoStyle();
1153     Style.ColumnLimit = 20;
1154     return Style;
1155   }());
1156 
1157   // Test 9.1.2: propagate more than one level with no parent file.
1158   ASSERT_TRUE(FS.addFile("/e/sub/sub/code.cpp", 0,
1159                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1160   ASSERT_TRUE(FS.addFile("/e/sub/sub/.clang-format", 0,
1161                          llvm::MemoryBuffer::getMemBuffer(
1162                              "BasedOnStyle: InheritParentConfig\n"
1163                              "WhitespaceSensitiveMacros: ['FOO', 'BAR']")));
1164   std::vector<std::string> NonDefaultWhiteSpaceMacros =
1165       Style9->WhitespaceSensitiveMacros;
1166   NonDefaultWhiteSpaceMacros[0] = "FOO";
1167   NonDefaultWhiteSpaceMacros[1] = "BAR";
1168 
1169   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1170   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1171   ASSERT_TRUE(static_cast<bool>(Style9));
1172   ASSERT_EQ(*Style9, [&NonDefaultWhiteSpaceMacros] {
1173     auto Style = getNoStyle();
1174     Style.ColumnLimit = 20;
1175     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1176     return Style;
1177   }());
1178 
1179   // Test 9.2: with LLVM fallback style
1180   Style9 = getStyle("file", "/e/sub/code.cpp", "LLVM", "", &FS);
1181   ASSERT_TRUE(static_cast<bool>(Style9));
1182   ASSERT_EQ(*Style9, [] {
1183     auto Style = getLLVMStyle();
1184     Style.ColumnLimit = 20;
1185     return Style;
1186   }());
1187 
1188   // Test 9.3: with a parent file
1189   ASSERT_TRUE(
1190       FS.addFile("/e/.clang-format", 0,
1191                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google\n"
1192                                                   "UseTab: Always")));
1193   Style9 = getStyle("file", "/e/sub/code.cpp", "none", "", &FS);
1194   ASSERT_TRUE(static_cast<bool>(Style9));
1195   ASSERT_EQ(*Style9, [] {
1196     auto Style = getGoogleStyle();
1197     Style.ColumnLimit = 20;
1198     Style.UseTab = FormatStyle::UT_Always;
1199     return Style;
1200   }());
1201 
1202   // Test 9.4: propagate more than one level with a parent file.
1203   const auto SubSubStyle = [&NonDefaultWhiteSpaceMacros] {
1204     auto Style = getGoogleStyle();
1205     Style.ColumnLimit = 20;
1206     Style.UseTab = FormatStyle::UT_Always;
1207     Style.WhitespaceSensitiveMacros = NonDefaultWhiteSpaceMacros;
1208     return Style;
1209   }();
1210 
1211   ASSERT_NE(Style9->WhitespaceSensitiveMacros, NonDefaultWhiteSpaceMacros);
1212   Style9 = getStyle("file", "/e/sub/sub/code.cpp", "none", "", &FS);
1213   ASSERT_TRUE(static_cast<bool>(Style9));
1214   ASSERT_EQ(*Style9, SubSubStyle);
1215 
1216   // Test 9.5: use InheritParentConfig as style name
1217   Style9 =
1218       getStyle("inheritparentconfig", "/e/sub/sub/code.cpp", "none", "", &FS);
1219   ASSERT_TRUE(static_cast<bool>(Style9));
1220   ASSERT_EQ(*Style9, SubSubStyle);
1221 
1222   // Test 9.6: use command line style with inheritance
1223   Style9 = getStyle("{BasedOnStyle: InheritParentConfig}",
1224                     "/e/sub/sub/code.cpp", "none", "", &FS);
1225   ASSERT_TRUE(static_cast<bool>(Style9));
1226   ASSERT_EQ(*Style9, SubSubStyle);
1227 
1228   // Test 9.7: use command line style with inheritance and own config
1229   Style9 = getStyle("{BasedOnStyle: InheritParentConfig, "
1230                     "WhitespaceSensitiveMacros: ['FOO', 'BAR']}",
1231                     "/e/sub/code.cpp", "none", "", &FS);
1232   ASSERT_TRUE(static_cast<bool>(Style9));
1233   ASSERT_EQ(*Style9, SubSubStyle);
1234 
1235   // Test 9.8: use inheritance from a file without BasedOnStyle
1236   ASSERT_TRUE(FS.addFile("/e/withoutbase/.clang-format", 0,
1237                          llvm::MemoryBuffer::getMemBuffer("ColumnLimit: 123")));
1238   ASSERT_TRUE(
1239       FS.addFile("/e/withoutbase/sub/.clang-format", 0,
1240                  llvm::MemoryBuffer::getMemBuffer(
1241                      "BasedOnStyle: InheritParentConfig\nIndentWidth: 7")));
1242   // Make sure we do not use the fallback style
1243   Style9 = getStyle("file", "/e/withoutbase/code.cpp", "google", "", &FS);
1244   ASSERT_TRUE(static_cast<bool>(Style9));
1245   ASSERT_EQ(*Style9, [] {
1246     auto Style = getLLVMStyle();
1247     Style.ColumnLimit = 123;
1248     return Style;
1249   }());
1250 
1251   Style9 = getStyle("file", "/e/withoutbase/sub/code.cpp", "google", "", &FS);
1252   ASSERT_TRUE(static_cast<bool>(Style9));
1253   ASSERT_EQ(*Style9, [] {
1254     auto Style = getLLVMStyle();
1255     Style.ColumnLimit = 123;
1256     Style.IndentWidth = 7;
1257     return Style;
1258   }());
1259 
1260   // Test 9.9: use inheritance from a specific config file.
1261   Style9 = getStyle("file:/e/sub/sub/.clang-format", "/e/sub/sub/code.cpp",
1262                     "none", "", &FS);
1263   ASSERT_TRUE(static_cast<bool>(Style9));
1264   ASSERT_EQ(*Style9, SubSubStyle);
1265 }
1266 
1267 TEST(ConfigParseTest, GetStyleOfSpecificFile) {
1268   llvm::vfs::InMemoryFileSystem FS;
1269   // Specify absolute path to a format file in a parent directory.
1270   ASSERT_TRUE(
1271       FS.addFile("/e/.clang-format", 0,
1272                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: LLVM")));
1273   ASSERT_TRUE(
1274       FS.addFile("/e/explicit.clang-format", 0,
1275                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1276   ASSERT_TRUE(FS.addFile("/e/sub/sub/sub/test.cpp", 0,
1277                          llvm::MemoryBuffer::getMemBuffer("int i;")));
1278   auto Style = getStyle("file:/e/explicit.clang-format",
1279                         "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1280   ASSERT_TRUE(static_cast<bool>(Style));
1281   ASSERT_EQ(*Style, getGoogleStyle());
1282 
1283   // Specify relative path to a format file.
1284   ASSERT_TRUE(
1285       FS.addFile("../../e/explicit.clang-format", 0,
1286                  llvm::MemoryBuffer::getMemBuffer("BasedOnStyle: Google")));
1287   Style = getStyle("file:../../e/explicit.clang-format",
1288                    "/e/sub/sub/sub/test.cpp", "LLVM", "", &FS);
1289   ASSERT_TRUE(static_cast<bool>(Style));
1290   ASSERT_EQ(*Style, getGoogleStyle());
1291 
1292   // Specify path to a format file that does not exist.
1293   Style = getStyle("file:/e/missing.clang-format", "/e/sub/sub/sub/test.cpp",
1294                    "LLVM", "", &FS);
1295   ASSERT_FALSE(static_cast<bool>(Style));
1296   llvm::consumeError(Style.takeError());
1297 
1298   // Specify path to a file on the filesystem.
1299   SmallString<128> FormatFilePath;
1300   std::error_code ECF = llvm::sys::fs::createTemporaryFile(
1301       "FormatFileTest", "tpl", FormatFilePath);
1302   EXPECT_FALSE((bool)ECF);
1303   llvm::raw_fd_ostream FormatFileTest(FormatFilePath, ECF);
1304   EXPECT_FALSE((bool)ECF);
1305   FormatFileTest << "BasedOnStyle: Google\n";
1306   FormatFileTest.close();
1307 
1308   SmallString<128> TestFilePath;
1309   std::error_code ECT =
1310       llvm::sys::fs::createTemporaryFile("CodeFileTest", "cc", TestFilePath);
1311   EXPECT_FALSE((bool)ECT);
1312   llvm::raw_fd_ostream CodeFileTest(TestFilePath, ECT);
1313   CodeFileTest << "int i;\n";
1314   CodeFileTest.close();
1315 
1316   std::string format_file_arg = std::string("file:") + FormatFilePath.c_str();
1317   Style = getStyle(format_file_arg, TestFilePath, "LLVM", "", nullptr);
1318 
1319   llvm::sys::fs::remove(FormatFilePath.c_str());
1320   llvm::sys::fs::remove(TestFilePath.c_str());
1321   ASSERT_TRUE(static_cast<bool>(Style));
1322   ASSERT_EQ(*Style, getGoogleStyle());
1323 }
1324 
1325 } // namespace
1326 } // namespace format
1327 } // namespace clang
1328