xref: /llvm-project/clang/unittests/Format/FormatTestProto.cpp (revision 4b6e41b61e2edea2f80de3639e589301fe7c896c)
1 //===- unittest/Format/FormatTestProto.cpp --------------------------------===//
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 "FormatTestUtils.h"
10 #include "clang/Format/Format.h"
11 #include "llvm/Support/Debug.h"
12 #include "gtest/gtest.h"
13 
14 #define DEBUG_TYPE "format-test"
15 
16 namespace clang {
17 namespace format {
18 
19 class FormatTestProto : public testing::Test {
20 protected:
21   static std::string format(StringRef Code, unsigned Offset, unsigned Length,
22                             const FormatStyle &Style) {
23     LLVM_DEBUG(llvm::errs() << "---\n");
24     LLVM_DEBUG(llvm::errs() << Code << "\n\n");
25     std::vector<tooling::Range> Ranges(1, tooling::Range(Offset, Length));
26     tooling::Replacements Replaces = reformat(Style, Code, Ranges);
27     auto Result = applyAllReplacements(Code, Replaces);
28     EXPECT_TRUE(static_cast<bool>(Result));
29     LLVM_DEBUG(llvm::errs() << "\n" << *Result << "\n\n");
30     return *Result;
31   }
32 
33   static std::string format(StringRef Code) {
34     FormatStyle Style = getGoogleStyle(FormatStyle::LK_Proto);
35     Style.ColumnLimit = 60; // To make writing tests easier.
36     return format(Code, 0, Code.size(), Style);
37   }
38 
39   static void verifyFormat(StringRef Code) {
40     EXPECT_EQ(Code.str(), format(Code)) << "Expected code is not stable";
41     EXPECT_EQ(Code.str(), format(test::messUp(Code)));
42   }
43 };
44 
45 TEST_F(FormatTestProto, FormatsMessages) {
46   verifyFormat("message SomeMessage {\n"
47                "  required int32 field1 = 1;\n"
48                "}");
49   verifyFormat("message SomeMessage {\n"
50                "  required .absolute.Reference field1 = 1;\n"
51                "}");
52   verifyFormat("message SomeMessage {\n"
53                "  required int32 field1 = 1;\n"
54                "  optional string field2 = 2 [default = \"2\"]\n"
55                "}");
56 
57   verifyFormat("message SomeMessage {\n"
58                "  optional really.really.long.qualified.type.aaa.aaaaaaa\n"
59                "      fiiiiiiiiiiiiiiiiiiiiiiiiield = 1;\n"
60                "  optional\n"
61                "      really.really.long.qualified.type.aaa.aaaaaaa.aaaaaaaa\n"
62                "          another_fiiiiiiiiiiiiiiiiiiiiield = 2;\n"
63                "}");
64   verifyFormat("message SomeMessage {\n"
65                "  map<string, Project> projects = 1;\n"
66                "  optional map<string, int32> size_projects = 2;\n"
67                "  map<int, really.really.really.long.qualified.type.nameeee>\n"
68                "      projects = 3;\n"
69                "  map<int, really.really.really.really.long.qualified.type\n"
70                "               .nameeee> projects = 4;\n"
71                "  map<int,\n"
72                "      reallyreallyreallyreallyreallyreallyreallylongname>\n"
73                "      projects = 5;\n"
74                "  map<int, Project>\n"
75                "      longlonglonglonglonglonglonglonglonglongonglon = 6;\n"
76                "  map<releleallyreallyreallyreallyreallyreallyreallylongname,\n"
77                "      int> projects = 7;\n"
78                "  map<releleallyreallyreallyreallyreallyreallyreallylongname,\n"
79                "      releleallyreallyreallyreallyreallyreallyreallylongname>\n"
80                "      releleallyreallyreallyreallyreallyreallyreallylongnam =\n"
81                "          8;\n"
82                "  map<relele.llyreal.yreallyr.allyreally.eallyreal\n"
83                "          .sauenirylongname,\n"
84                "      really.really.really.really.long.qualified.type\n"
85                "          .nameeee> projects = 9;\n"
86                "}");
87 }
88 
89 TEST_F(FormatTestProto, KeywordsInOtherLanguages) {
90   verifyFormat("optional string operator = 1;");
91 }
92 
93 TEST_F(FormatTestProto, FormatsEnums) {
94   verifyFormat("enum Type {\n"
95                "  UNKNOWN = 0;\n"
96                "  TYPE_A = 1;\n"
97                "  TYPE_B = 2;\n"
98                "};");
99   verifyFormat("enum Type {\n"
100                "  UNKNOWN = 0 [(some_options) = { a: aa, b: bb }];\n"
101                "};");
102   verifyFormat("enum Type {\n"
103                "  UNKNOWN = 0 [(some_options) = {\n"
104                "    a: aa,  // wrap\n"
105                "    b: bb\n"
106                "  }];\n"
107                "};");
108 }
109 
110 TEST_F(FormatTestProto, EnumAsFieldName) {
111   verifyFormat("message SomeMessage {\n"
112                "  required int32 enum = 1;\n"
113                "}");
114 }
115 
116 TEST_F(FormatTestProto, CaseAsFieldName) {
117   verifyFormat("message SomeMessage {\n"
118                "  required string case = 1;\n"
119                "  repeated int32 fizz = 2;\n"
120                "}");
121 }
122 
123 TEST_F(FormatTestProto, UnderstandsReturns) {
124   verifyFormat("rpc Search(SearchRequest) returns (SearchResponse);");
125 }
126 
127 TEST_F(FormatTestProto, MessageFieldAttributes) {
128   verifyFormat("optional string test = 1 [default = \"test\"];");
129   verifyFormat("optional bool a = 1 [default = true, deprecated = true];");
130   verifyFormat("optional LongMessageType long_proto_field = 1 [\n"
131                "  default = REALLY_REALLY_LONG_CONSTANT_VALUE,\n"
132                "  deprecated = true\n"
133                "];");
134   verifyFormat("optional LongMessageType long_proto_field = 1\n"
135                "    [default = REALLY_REALLY_LONG_CONSTANT_VALUE];");
136   verifyFormat("repeated double value = 1\n"
137                "    [(aaaaaaa.aaaaaaaaa) = { aaaaaaaaaaaaaaaaa: AAAAAAAA }];");
138   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
139                "  aaaaaaaaaaaaaaaa: AAAAAAAAAA,\n"
140                "  bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
141                "}];");
142   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
143                "  aaaaaaaaaaaaaaaa: AAAAAAAAAA\n"
144                "  bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
145                "}];");
146   verifyFormat("repeated double value = 1 [\n"
147                "  (aaaaaaa.aaaaaaaaa) = {\n"
148                "    aaaaaaaaaaaaaaaa: AAAAAAAAAA\n"
149                "    bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
150                "  },\n"
151                "  (bbbbbbb.bbbbbbbbb) = {\n"
152                "    aaaaaaaaaaaaaaaa: AAAAAAAAAA\n"
153                "    bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
154                "  }\n"
155                "];");
156   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
157                "  type: \"AAAAAAAAAA\"\n"
158                "  is: \"AAAAAAAAAA\"\n"
159                "  or: \"BBBBBBBBBB\"\n"
160                "}];");
161   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
162                "  aaaaaaaaaaaaaaaa: AAAAAAAAAA,\n"
163                "  bbbbbbb: BBBB,\n"
164                "  bbbb: BBB\n"
165                "}];");
166   verifyFormat("optional AAA aaa = 1 [\n"
167                "  foo = {\n"
168                "    key: 'a'  //\n"
169                "  },\n"
170                "  bar = {\n"
171                "    key: 'a'  //\n"
172                "  }\n"
173                "];");
174   verifyFormat("optional string test = 1 [default = \"test\"\n"
175                "                                    \"test\"];");
176   verifyFormat("optional Aaaaaaaa aaaaaaaa = 12 [\n"
177                "  (aaa) = aaaa,\n"
178                "  (bbbbbbbbbbbbbbbbbbbbbbbbbb) = {\n"
179                "    aaaaaaaaaaaaaaaaa: true,\n"
180                "    aaaaaaaaaaaaaaaa: true\n"
181                "  }\n"
182                "];");
183   verifyFormat("extensions 20 [(proto2.type) = 'Aaaa.bbbb'];");
184   verifyFormat("extensions 20\n"
185                "    [(proto3.type) = 'Aaaa.bbbb', (aaa.Aaa) = 'aaa.bbb'];");
186   verifyFormat("extensions 123 [\n"
187                "  (aaa) = aaaa,\n"
188                "  (bbbbbbbbbbbbbbbbbbbbbbbbbb) = {\n"
189                "    aaaaaaaaaaaaaaaaa: true,\n"
190                "    aaaaaaaaaaaaaaaa: true\n"
191                "  }\n"
192                "];");
193   verifyFormat("repeated A a = 1 [(annotation).int32.repeated.test = true];");
194 }
195 
196 TEST_F(FormatTestProto, DoesntWrapFileOptions) {
197   EXPECT_EQ(
198       "option java_package = "
199       "\"some.really.long.package.that.exceeds.the.column.limit\";",
200       format("option    java_package   =    "
201              "\"some.really.long.package.that.exceeds.the.column.limit\";"));
202 }
203 
204 TEST_F(FormatTestProto, TrailingCommentAfterFileOption) {
205   verifyFormat("option java_package = \"foo.pkg\";  // comment");
206 }
207 
208 TEST_F(FormatTestProto, FormatsOptions) {
209   verifyFormat("option (MyProto.options) = {\n"
210                "  field_a: OK\n"
211                "  field_b: \"OK\"\n"
212                "  field_c: \"OK\"\n"
213                "  msg_field: { field_d: 123 }\n"
214                "};");
215   verifyFormat("option (MyProto.options) = {\n"
216                "  field_a: OK\n"
217                "  field_b: \"OK\"\n"
218                "  field_c: \"OK\"\n"
219                "  msg_field: { field_d: 123 field_e: OK }\n"
220                "};");
221   verifyFormat("option (MyProto.options) = {\n"
222                "  field_a: OK  // Comment\n"
223                "  field_b: \"OK\"\n"
224                "  field_c: \"OK\"\n"
225                "  msg_field: { field_d: 123 }\n"
226                "};");
227   verifyFormat("option (MyProto.options) = {\n"
228                "  field_c: \"OK\"\n"
229                "  msg_field { field_d: 123 }\n"
230                "};");
231   verifyFormat("option (MyProto.options) = {\n"
232                "  field_a: OK\n"
233                "  field_b { field_c: OK }\n"
234                "  field_d: OKOKOK\n"
235                "  field_e: OK\n"
236                "}");
237 
238   // Support syntax with <> instead of {}.
239   verifyFormat("option (MyProto.options) = {\n"
240                "  field_c: \"OK\",\n"
241                "  msg_field: < field_d: 123 >\n"
242                "  empty: <>\n"
243                "  empty <>\n"
244                "};");
245 
246   verifyFormat("option (MyProto.options) = {\n"
247                "  field_a: OK\n"
248                "  field_b < field_c: OK >\n"
249                "  field_d: OKOKOK\n"
250                "  field_e: OK\n"
251                "}");
252 
253   verifyFormat("option (MyProto.options) = {\n"
254                "  msg_field: <>\n"
255                "  field_c: \"OK\",\n"
256                "  msg_field: < field_d: 123 >\n"
257                "  field_e: OK\n"
258                "  msg_field: < field_d: 12 >\n"
259                "};");
260 
261   verifyFormat("option (MyProto.options) = <\n"
262                "  field_a: OK\n"
263                "  field_b: \"OK\"\n"
264                "  field_c: 1\n"
265                "  field_d: 12.5\n"
266                "  field_e: OK\n"
267                ">;");
268 
269   verifyFormat("option (MyProto.options) = <\n"
270                "  field_a: OK,\n"
271                "  field_b: \"OK\",\n"
272                "  field_c: 1,\n"
273                "  field_d: 12.5,\n"
274                "  field_e: OK,\n"
275                ">;");
276 
277   verifyFormat("option (MyProto.options) = <\n"
278                "  field_a: \"OK\"\n"
279                "  msg_field: { field_b: OK }\n"
280                "  field_g: OK\n"
281                "  field_g: OK\n"
282                "  field_g: OK\n"
283                ">;");
284 
285   verifyFormat("option (MyProto.options) = <\n"
286                "  field_a: \"OK\"\n"
287                "  msg_field <\n"
288                "    field_b: OK\n"
289                "    field_c: OK\n"
290                "    field_d: OK\n"
291                "    field_e: OK\n"
292                "    field_f: OK\n"
293                "  >\n"
294                "  field_g: OK\n"
295                ">;");
296 
297   verifyFormat("option (MyProto.options) = <\n"
298                "  field_a: \"OK\"\n"
299                "  msg_field <\n"
300                "    field_b: OK,\n"
301                "    field_c: OK,\n"
302                "    field_d: OK,\n"
303                "    field_e: OK,\n"
304                "    field_f: OK\n"
305                "  >\n"
306                "  field_g: OK\n"
307                ">;");
308 
309   verifyFormat("option (MyProto.options) = <\n"
310                "  field_a: \"OK\"\n"
311                "  msg_field: <\n"
312                "    field_b: OK\n"
313                "    field_c: OK\n"
314                "    field_d: OK\n"
315                "    field_e: OK\n"
316                "    field_f: OK\n"
317                "  >\n"
318                "  field_g: OK\n"
319                ">;");
320 
321   verifyFormat("option (MyProto.options) = <\n"
322                "  field_a: \"OK\"\n"
323                "  msg_field: {\n"
324                "    field_b: OK\n"
325                "    field_c: OK\n"
326                "    field_d: OK\n"
327                "    field_e: OK\n"
328                "    field_f: OK\n"
329                "  }\n"
330                "  field_g: OK\n"
331                ">;");
332 
333   verifyFormat("option (MyProto.options) = <\n"
334                "  field_a: \"OK\"\n"
335                "  msg_field {\n"
336                "    field_b: OK\n"
337                "    field_c: OK\n"
338                "    field_d: OK\n"
339                "    field_e: OK\n"
340                "    field_f: OK\n"
341                "  }\n"
342                "  field_g: OK\n"
343                ">;");
344 
345   verifyFormat("option (MyProto.options) = {\n"
346                "  field_a: \"OK\"\n"
347                "  msg_field <\n"
348                "    field_b: OK\n"
349                "    field_c: OK\n"
350                "    field_d: OK\n"
351                "    field_e: OK\n"
352                "    field_f: OK\n"
353                "  >\n"
354                "  field_g: OK\n"
355                "};");
356 
357   verifyFormat("option (MyProto.options) = {\n"
358                "  field_a: \"OK\"\n"
359                "  msg_field: <\n"
360                "    field_b: OK\n"
361                "    field_c: OK\n"
362                "    field_d: OK\n"
363                "    field_e: OK\n"
364                "    field_f: OK\n"
365                "  >\n"
366                "  field_g: OK\n"
367                "};");
368 
369   verifyFormat("option (MyProto.options) = <\n"
370                "  field_a: \"OK\"\n"
371                "  msg_field {\n"
372                "    field_b: OK\n"
373                "    field_c: OK\n"
374                "    field_d: OK\n"
375                "    msg_field <\n"
376                "      field_A: 1\n"
377                "      field_B: 2\n"
378                "      field_C: 3\n"
379                "      field_D: 4\n"
380                "      field_E: 5\n"
381                "    >\n"
382                "    msg_field < field_A: 1 field_B: 2 field_C: 3 f_D: 4 >\n"
383                "    field_e: OK\n"
384                "    field_f: OK\n"
385                "  }\n"
386                "  field_g: OK\n"
387                ">;");
388 
389   verifyFormat("option (MyProto.options) = <\n"
390                "  data1 < key1: value1 >\n"
391                "  data2 { key2: value2 }\n"
392                ">;");
393 
394   verifyFormat("option (MyProto.options) = <\n"
395                "  app_id: 'com.javax.swing.salsa.latino'\n"
396                "  head_id: 1\n"
397                "  data < key: value >\n"
398                ">;");
399 
400   verifyFormat("option (MyProto.options) = {\n"
401                "  app_id: 'com.javax.swing.salsa.latino'\n"
402                "  head_id: 1\n"
403                "  headheadheadheadheadhead_id: 1\n"
404                "  product_data { product { 1 } }\n"
405                "};");
406 }
407 
408 TEST_F(FormatTestProto, DoesntWrapPackageStatements) {
409   verifyFormat(
410       "package"
411       " some.really.long.package.that.exceeds.the.column.limit00000000;");
412 }
413 
414 TEST_F(FormatTestProto, TrailingCommentAfterPackage) {
415   verifyFormat("package foo.pkg;  // comment");
416 }
417 
418 TEST_F(FormatTestProto, FormatsService) {
419   verifyFormat("service SearchService {\n"
420                "  rpc Search(SearchRequest) returns (SearchResponse) {\n"
421                "    option foo = true;\n"
422                "  }\n"
423                "};");
424 }
425 
426 TEST_F(FormatTestProto, ExtendingMessage) {
427   verifyFormat("extend .foo.Bar {}");
428 }
429 
430 TEST_F(FormatTestProto, FormatsImports) {
431   verifyFormat("import \"a.proto\";\n"
432                "import \"b.proto\";\n"
433                "// comment\n"
434                "message A {}");
435 
436   verifyFormat("import public \"a.proto\";\n"
437                "import \"b.proto\";\n"
438                "// comment\n"
439                "message A {}");
440 
441   // Missing semicolons should not confuse clang-format.
442   verifyFormat("import \"a.proto\"\n"
443                "import \"b.proto\"\n"
444                "// comment\n"
445                "message A {}");
446 }
447 
448 TEST_F(FormatTestProto, KeepsLongStringLiteralsOnSameLine) {
449   verifyFormat(
450       "option (MyProto.options) = {\n"
451       "  foo: {\n"
452       "    text: \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasaaaaaaaa\"\n"
453       "  }\n"
454       "}");
455 }
456 
457 TEST_F(FormatTestProto, FormatsOptionsExtensions) {
458   verifyFormat("option (MyProto.options) = {\n"
459                "  msg_field: { field_d: 123 }\n"
460                "  [ext.t/u] { key: value }\n"
461                "  key: value\n"
462                "  [t.u/v] <\n"
463                "    [ext] { key: value }\n"
464                "  >\n"
465                "};");
466 }
467 
468 TEST_F(FormatTestProto, SpacesAroundPercents) {
469   verifyFormat("option (MyProto.options) = {\n"
470                "  key: %lld\n"
471                "  key: 0x%04x\n"
472                "  key: \"%d %d\"\n"
473                "};");
474 }
475 
476 TEST_F(FormatTestProto, FormatsRepeatedListInitializersInOptions) {
477   verifyFormat("option (MyProto.options) = {\n"
478                "  key: item\n"
479                "  keys: [\n"
480                "    'ala',\n"
481                "    'bala',\n"
482                "    'porto',\n"
483                "    'kala',\n"
484                "    'too',\n"
485                "    'long',\n"
486                "    'long',\n"
487                "    'long'\n"
488                "  ]\n"
489                "  key: [ item ]\n"
490                "  msg {\n"
491                "    key: item\n"
492                "    keys: [\n"
493                "      'ala',\n"
494                "      'bala',\n"
495                "      'porto',\n"
496                "      'kala',\n"
497                "      'too',\n"
498                "      'long',\n"
499                "      'long'\n"
500                "    ]\n"
501                "  }\n"
502                "  key: value\n"
503                "};");
504 }
505 
506 TEST_F(FormatTestProto, AcceptsOperatorAsKeyInOptions) {
507   verifyFormat("option (MyProto.options) = {\n"
508                "  bbbbbbbbb: <\n"
509                "    ccccccccccccccccccccccc: <\n"
510                "      operator: 1\n"
511                "      operator: 2\n"
512                "      operator: 3\n"
513                "      operator { key: value }\n"
514                "    >\n"
515                "  >\n"
516                "};");
517 }
518 
519 TEST_F(FormatTestProto, BreaksEntriesOfSubmessagesContainingSubmessages) {
520   // The column limit allows for the keys submessage to be put on 1 line, but we
521   // break it since it contains a submessage an another entry.
522   verifyFormat("option (MyProto.options) = {\n"
523                "  key: valueeeeeeee\n"
524                "  keys: {\n"
525                "    item: 'aaaaaaaaaaaaaaaa'\n"
526                "    sub <>\n"
527                "  }\n"
528                "}");
529   verifyFormat("option (MyProto.options) = {\n"
530                "  key: valueeeeeeee\n"
531                "  keys: {\n"
532                "    item: 'aaaaaaaaaaaaaaaa'\n"
533                "    sub {}\n"
534                "  }\n"
535                "}");
536   verifyFormat("option (MyProto.options) = {\n"
537                "  key: valueeeeeeee\n"
538                "  keys: {\n"
539                "    sub {}\n"
540                "    sub: <>\n"
541                "    sub: []\n"
542                "  }\n"
543                "}");
544   verifyFormat("option (MyProto.options) = {\n"
545                "  key: valueeeeeeee\n"
546                "  keys: {\n"
547                "    item: 'aaaaaaaaaaa'\n"
548                "    sub { msg: 1 }\n"
549                "  }\n"
550                "}");
551   verifyFormat("option (MyProto.options) = {\n"
552                "  key: valueeeeeeee\n"
553                "  keys: {\n"
554                "    item: 'aaaaaaaaaaa'\n"
555                "    sub: { msg: 1 }\n"
556                "  }\n"
557                "}");
558   verifyFormat("option (MyProto.options) = {\n"
559                "  key: valueeeeeeee\n"
560                "  keys: {\n"
561                "    item: 'aaaaaaaaaaa'\n"
562                "    sub < msg: 1 >\n"
563                "  }\n"
564                "}");
565   verifyFormat("option (MyProto.options) = {\n"
566                "  key: valueeeeeeee\n"
567                "  keys: {\n"
568                "    item: 'aaaaaaaaaaa'\n"
569                "    sub: [ msg: 1 ]\n"
570                "  }\n"
571                "}");
572   verifyFormat("option (MyProto.options) = {\n"
573                "  key: valueeeeeeee\n"
574                "  keys: <\n"
575                "    item: 'aaaaaaaaaaa'\n"
576                "    sub: [ 1, 2 ]\n"
577                "  >\n"
578                "}");
579   verifyFormat("option (MyProto.options) = {\n"
580                "  key: valueeeeeeee\n"
581                "  keys: {\n"
582                "    sub {}\n"
583                "    item: 'aaaaaaaaaaaaaaaa'\n"
584                "  }\n"
585                "}");
586   verifyFormat("option (MyProto.options) = {\n"
587                "  key: valueeeeeeee\n"
588                "  keys: {\n"
589                "    sub: []\n"
590                "    item: 'aaaaaaaaaaaaaaaa'\n"
591                "  }\n"
592                "}");
593   verifyFormat("option (MyProto.options) = {\n"
594                "  key: valueeeeeeee\n"
595                "  keys: {\n"
596                "    sub <>\n"
597                "    item: 'aaaaaaaaaaaaaaaa'\n"
598                "  }\n"
599                "}");
600   verifyFormat("option (MyProto.options) = {\n"
601                "  key: valueeeeeeee\n"
602                "  keys: {\n"
603                "    sub { key: value }\n"
604                "    item: 'aaaaaaaaaaaaaaaa'\n"
605                "  }\n"
606                "}");
607   verifyFormat("option (MyProto.options) = {\n"
608                "  key: valueeeeeeee\n"
609                "  keys: {\n"
610                "    sub: [ 1, 2 ]\n"
611                "    item: 'aaaaaaaaaaaaaaaa'\n"
612                "  }\n"
613                "}");
614   verifyFormat("option (MyProto.options) = {\n"
615                "  key: valueeeeeeee\n"
616                "  keys: {\n"
617                "    sub < sub_2: {} >\n"
618                "    item: 'aaaaaaaaaaaaaaaa'\n"
619                "  }\n"
620                "}");
621   verifyFormat("option (MyProto.options) = {\n"
622                "  key: valueeeeeeee\n"
623                "  keys: {\n"
624                "    item: data\n"
625                "    sub: [ 1, 2 ]\n"
626                "    item: 'aaaaaaaaaaaaaaaa'\n"
627                "  }\n"
628                "}");
629   verifyFormat("option (MyProto.options) = {\n"
630                "  key: valueeeeeeee\n"
631                "  keys: {\n"
632                "    item: data\n"
633                "    sub < sub_2: {} >\n"
634                "    item: 'aaaaaaaaaaaaaaaa'\n"
635                "  }\n"
636                "}");
637   verifyFormat("option (MyProto.options) = {\n"
638                "  sub: {\n"
639                "    key: valueeeeeeee\n"
640                "    keys: {\n"
641                "      sub: [ 1, 2 ]\n"
642                "      item: 'aaaaaaaaaaaaaaaa'\n"
643                "    }\n"
644                "  }\n"
645                "}");
646 }
647 
648 TEST_F(FormatTestProto, PreventBreaksBetweenKeyAndSubmessages) {
649   verifyFormat("option (MyProto.options) = {\n"
650                "  submessage: {\n"
651                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
652                "  }\n"
653                "}");
654   verifyFormat("option (MyProto.options) = {\n"
655                "  submessage {\n"
656                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
657                "  }\n"
658                "}");
659   verifyFormat("option (MyProto.options) = {\n"
660                "  submessage: <\n"
661                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
662                "  >\n"
663                "}");
664   verifyFormat("option (MyProto.options) = {\n"
665                "  submessage <\n"
666                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
667                "  >\n"
668                "}");
669   verifyFormat("option (MyProto.options) = {\n"
670                "  repeatedd: [\n"
671                "    'eyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
672                "  ]\n"
673                "}");
674 }
675 
676 } // namespace format
677 } // end namespace clang
678