xref: /llvm-project/clang/unittests/Format/FormatTestProto.cpp (revision a87ba1c59cb9f3381216cfe4e1a6a1e5425225ca)
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(llvm::StringRef Code, unsigned Offset,
22                             unsigned Length, 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(llvm::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(llvm::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, UnderstandsReturns) {
117   verifyFormat("rpc Search(SearchRequest) returns (SearchResponse);");
118 }
119 
120 TEST_F(FormatTestProto, MessageFieldAttributes) {
121   verifyFormat("optional string test = 1 [default = \"test\"];");
122   verifyFormat("optional bool a = 1 [default = true, deprecated = true];");
123   verifyFormat("optional LongMessageType long_proto_field = 1 [\n"
124                "  default = REALLY_REALLY_LONG_CONSTANT_VALUE,\n"
125                "  deprecated = true\n"
126                "];");
127   verifyFormat("optional LongMessageType long_proto_field = 1\n"
128                "    [default = REALLY_REALLY_LONG_CONSTANT_VALUE];");
129   verifyFormat("repeated double value = 1\n"
130                "    [(aaaaaaa.aaaaaaaaa) = { aaaaaaaaaaaaaaaaa: AAAAAAAA }];");
131   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
132                "  aaaaaaaaaaaaaaaa: AAAAAAAAAA,\n"
133                "  bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
134                "}];");
135   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
136                "  aaaaaaaaaaaaaaaa: AAAAAAAAAA\n"
137                "  bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
138                "}];");
139   verifyFormat("repeated double value = 1 [\n"
140                "  (aaaaaaa.aaaaaaaaa) = {\n"
141                "    aaaaaaaaaaaaaaaa: AAAAAAAAAA\n"
142                "    bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
143                "  },\n"
144                "  (bbbbbbb.bbbbbbbbb) = {\n"
145                "    aaaaaaaaaaaaaaaa: AAAAAAAAAA\n"
146                "    bbbbbbbbbbbbbbbb: BBBBBBBBBB\n"
147                "  }\n"
148                "];");
149   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
150                "  type: \"AAAAAAAAAA\"\n"
151                "  is: \"AAAAAAAAAA\"\n"
152                "  or: \"BBBBBBBBBB\"\n"
153                "}];");
154   verifyFormat("repeated double value = 1 [(aaaaaaa.aaaaaaaaa) = {\n"
155                "  aaaaaaaaaaaaaaaa: AAAAAAAAAA,\n"
156                "  bbbbbbb: BBBB,\n"
157                "  bbbb: BBB\n"
158                "}];");
159   verifyFormat("optional AAA aaa = 1 [\n"
160                "  foo = {\n"
161                "    key: 'a'  //\n"
162                "  },\n"
163                "  bar = {\n"
164                "    key: 'a'  //\n"
165                "  }\n"
166                "];");
167   verifyFormat("optional string test = 1 [default = \"test\"\n"
168                "                                    \"test\"];");
169   verifyFormat("optional Aaaaaaaa aaaaaaaa = 12 [\n"
170                "  (aaa) = aaaa,\n"
171                "  (bbbbbbbbbbbbbbbbbbbbbbbbbb) = {\n"
172                "    aaaaaaaaaaaaaaaaa: true,\n"
173                "    aaaaaaaaaaaaaaaa: true\n"
174                "  }\n"
175                "];");
176   verifyFormat("extensions 20 [(proto2.type) = 'Aaaa.bbbb'];");
177   verifyFormat("extensions 20\n"
178                "    [(proto3.type) = 'Aaaa.bbbb', (aaa.Aaa) = 'aaa.bbb'];");
179   verifyFormat("extensions 123 [\n"
180                "  (aaa) = aaaa,\n"
181                "  (bbbbbbbbbbbbbbbbbbbbbbbbbb) = {\n"
182                "    aaaaaaaaaaaaaaaaa: true,\n"
183                "    aaaaaaaaaaaaaaaa: true\n"
184                "  }\n"
185                "];");
186 }
187 
188 TEST_F(FormatTestProto, DoesntWrapFileOptions) {
189   EXPECT_EQ(
190       "option java_package = "
191       "\"some.really.long.package.that.exceeds.the.column.limit\";",
192       format("option    java_package   =    "
193              "\"some.really.long.package.that.exceeds.the.column.limit\";"));
194 }
195 
196 TEST_F(FormatTestProto, FormatsOptions) {
197   verifyFormat("option (MyProto.options) = {\n"
198                "  field_a: OK\n"
199                "  field_b: \"OK\"\n"
200                "  field_c: \"OK\"\n"
201                "  msg_field: { field_d: 123 }\n"
202                "};");
203   verifyFormat("option (MyProto.options) = {\n"
204                "  field_a: OK\n"
205                "  field_b: \"OK\"\n"
206                "  field_c: \"OK\"\n"
207                "  msg_field: { field_d: 123 field_e: OK }\n"
208                "};");
209   verifyFormat("option (MyProto.options) = {\n"
210                "  field_a: OK  // Comment\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_c: \"OK\"\n"
217                "  msg_field { field_d: 123 }\n"
218                "};");
219   verifyFormat("option (MyProto.options) = {\n"
220                "  field_a: OK\n"
221                "  field_b { field_c: OK }\n"
222                "  field_d: OKOKOK\n"
223                "  field_e: OK\n"
224                "}");
225 
226   // Support syntax with <> instead of {}.
227   verifyFormat("option (MyProto.options) = {\n"
228                "  field_c: \"OK\",\n"
229                "  msg_field: < field_d: 123 >\n"
230                "  empty: <>\n"
231                "  empty <>\n"
232                "};");
233 
234   verifyFormat("option (MyProto.options) = {\n"
235                "  field_a: OK\n"
236                "  field_b < field_c: OK >\n"
237                "  field_d: OKOKOK\n"
238                "  field_e: OK\n"
239                "}");
240 
241   verifyFormat("option (MyProto.options) = {\n"
242                "  msg_field: <>\n"
243                "  field_c: \"OK\",\n"
244                "  msg_field: < field_d: 123 >\n"
245                "  field_e: OK\n"
246                "  msg_field: < field_d: 12 >\n"
247                "};");
248 
249   verifyFormat("option (MyProto.options) = <\n"
250                "  field_a: OK\n"
251                "  field_b: \"OK\"\n"
252                "  field_c: 1\n"
253                "  field_d: 12.5\n"
254                "  field_e: OK\n"
255                ">;");
256 
257   verifyFormat("option (MyProto.options) = <\n"
258                "  field_a: OK,\n"
259                "  field_b: \"OK\",\n"
260                "  field_c: 1,\n"
261                "  field_d: 12.5,\n"
262                "  field_e: OK,\n"
263                ">;");
264 
265   verifyFormat("option (MyProto.options) = <\n"
266                "  field_a: \"OK\"\n"
267                "  msg_field: { field_b: OK }\n"
268                "  field_g: OK\n"
269                "  field_g: OK\n"
270                "  field_g: OK\n"
271                ">;");
272 
273   verifyFormat("option (MyProto.options) = <\n"
274                "  field_a: \"OK\"\n"
275                "  msg_field <\n"
276                "    field_b: OK\n"
277                "    field_c: OK\n"
278                "    field_d: OK\n"
279                "    field_e: OK\n"
280                "    field_f: OK\n"
281                "  >\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                "    msg_field <\n"
364                "      field_A: 1\n"
365                "      field_B: 2\n"
366                "      field_C: 3\n"
367                "      field_D: 4\n"
368                "      field_E: 5\n"
369                "    >\n"
370                "    msg_field < field_A: 1 field_B: 2 field_C: 3 f_D: 4 >\n"
371                "    field_e: OK\n"
372                "    field_f: OK\n"
373                "  }\n"
374                "  field_g: OK\n"
375                ">;");
376 
377   verifyFormat("option (MyProto.options) = <\n"
378                "  data1 < key1: value1 >\n"
379                "  data2 { key2: value2 }\n"
380                ">;");
381 
382   verifyFormat("option (MyProto.options) = <\n"
383                "  app_id: 'com.javax.swing.salsa.latino'\n"
384                "  head_id: 1\n"
385                "  data < key: value >\n"
386                ">;");
387 
388   verifyFormat("option (MyProto.options) = {\n"
389                "  app_id: 'com.javax.swing.salsa.latino'\n"
390                "  head_id: 1\n"
391                "  headheadheadheadheadhead_id: 1\n"
392                "  product_data { product { 1 } }\n"
393                "};");
394 }
395 
396 TEST_F(FormatTestProto, FormatsService) {
397   verifyFormat("service SearchService {\n"
398                "  rpc Search(SearchRequest) returns (SearchResponse) {\n"
399                "    option foo = true;\n"
400                "  }\n"
401                "};");
402 }
403 
404 TEST_F(FormatTestProto, ExtendingMessage) {
405   verifyFormat("extend .foo.Bar {}");
406 }
407 
408 TEST_F(FormatTestProto, FormatsImports) {
409   verifyFormat("import \"a.proto\";\n"
410                "import \"b.proto\";\n"
411                "// comment\n"
412                "message A {}");
413 
414   verifyFormat("import public \"a.proto\";\n"
415                "import \"b.proto\";\n"
416                "// comment\n"
417                "message A {}");
418 
419   // Missing semicolons should not confuse clang-format.
420   verifyFormat("import \"a.proto\"\n"
421                "import \"b.proto\"\n"
422                "// comment\n"
423                "message A {}");
424 }
425 
426 TEST_F(FormatTestProto, KeepsLongStringLiteralsOnSameLine) {
427   verifyFormat(
428       "option (MyProto.options) = {\n"
429       "  foo: {\n"
430       "    text: \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasaaaaaaaa\"\n"
431       "  }\n"
432       "}");
433 }
434 
435 TEST_F(FormatTestProto, FormatsOptionsExtensions) {
436   verifyFormat("option (MyProto.options) = {\n"
437                "  msg_field: { field_d: 123 }\n"
438                "  [ext.t/u] { key: value }\n"
439                "  key: value\n"
440                "  [t.u/v] <\n"
441                "    [ext] { key: value }\n"
442                "  >\n"
443                "};");
444 }
445 
446 TEST_F(FormatTestProto, SpacesAroundPercents) {
447   verifyFormat("option (MyProto.options) = {\n"
448                "  key: %lld\n"
449                "  key: 0x%04x\n"
450                "  key: \"%d %d\"\n"
451                "};");
452 }
453 
454 TEST_F(FormatTestProto, FormatsRepeatedListInitializersInOptions) {
455   verifyFormat("option (MyProto.options) = {\n"
456                "  key: item\n"
457                "  keys: [\n"
458                "    'ala',\n"
459                "    'bala',\n"
460                "    'porto',\n"
461                "    'kala',\n"
462                "    'too',\n"
463                "    'long',\n"
464                "    'long',\n"
465                "    'long'\n"
466                "  ]\n"
467                "  key: [ item ]\n"
468                "  msg {\n"
469                "    key: item\n"
470                "    keys: [\n"
471                "      'ala',\n"
472                "      'bala',\n"
473                "      'porto',\n"
474                "      'kala',\n"
475                "      'too',\n"
476                "      'long',\n"
477                "      'long'\n"
478                "    ]\n"
479                "  }\n"
480                "  key: value\n"
481                "};");
482 }
483 
484 TEST_F(FormatTestProto, AcceptsOperatorAsKeyInOptions) {
485   verifyFormat("option (MyProto.options) = {\n"
486                "  bbbbbbbbb: <\n"
487                "    ccccccccccccccccccccccc: <\n"
488                "      operator: 1\n"
489                "      operator: 2\n"
490                "      operator: 3\n"
491                "      operator { key: value }\n"
492                "    >\n"
493                "  >\n"
494                "};");
495 }
496 
497 TEST_F(FormatTestProto, BreaksEntriesOfSubmessagesContainingSubmessages) {
498   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
499   Style.ColumnLimit = 60;
500   // The column limit allows for the keys submessage to be put on 1 line, but we
501   // break it since it contains a submessage an another entry.
502   verifyFormat("option (MyProto.options) = {\n"
503                "  key: valueeeeeeee\n"
504                "  keys: {\n"
505                "    item: 'aaaaaaaaaaaaaaaa'\n"
506                "    sub <>\n"
507                "  }\n"
508                "}");
509   verifyFormat("option (MyProto.options) = {\n"
510                "  key: valueeeeeeee\n"
511                "  keys: {\n"
512                "    item: 'aaaaaaaaaaaaaaaa'\n"
513                "    sub {}\n"
514                "  }\n"
515                "}");
516   verifyFormat("option (MyProto.options) = {\n"
517                "  key: valueeeeeeee\n"
518                "  keys: {\n"
519                "    sub {}\n"
520                "    sub: <>\n"
521                "    sub: []\n"
522                "  }\n"
523                "}");
524   verifyFormat("option (MyProto.options) = {\n"
525                "  key: valueeeeeeee\n"
526                "  keys: {\n"
527                "    item: 'aaaaaaaaaaa'\n"
528                "    sub { msg: 1 }\n"
529                "  }\n"
530                "}");
531   verifyFormat("option (MyProto.options) = {\n"
532                "  key: valueeeeeeee\n"
533                "  keys: {\n"
534                "    item: 'aaaaaaaaaaa'\n"
535                "    sub: { msg: 1 }\n"
536                "  }\n"
537                "}");
538   verifyFormat("option (MyProto.options) = {\n"
539                "  key: valueeeeeeee\n"
540                "  keys: {\n"
541                "    item: 'aaaaaaaaaaa'\n"
542                "    sub < msg: 1 >\n"
543                "  }\n"
544                "}");
545   verifyFormat("option (MyProto.options) = {\n"
546                "  key: valueeeeeeee\n"
547                "  keys: {\n"
548                "    item: 'aaaaaaaaaaa'\n"
549                "    sub: [ msg: 1 ]\n"
550                "  }\n"
551                "}");
552   verifyFormat("option (MyProto.options) = {\n"
553                "  key: valueeeeeeee\n"
554                "  keys: <\n"
555                "    item: 'aaaaaaaaaaa'\n"
556                "    sub: [ 1, 2 ]\n"
557                "  >\n"
558                "}");
559   verifyFormat("option (MyProto.options) = {\n"
560                "  key: valueeeeeeee\n"
561                "  keys: {\n"
562                "    sub {}\n"
563                "    item: 'aaaaaaaaaaaaaaaa'\n"
564                "  }\n"
565                "}");
566   verifyFormat("option (MyProto.options) = {\n"
567                "  key: valueeeeeeee\n"
568                "  keys: {\n"
569                "    sub: []\n"
570                "    item: 'aaaaaaaaaaaaaaaa'\n"
571                "  }\n"
572                "}");
573   verifyFormat("option (MyProto.options) = {\n"
574                "  key: valueeeeeeee\n"
575                "  keys: {\n"
576                "    sub <>\n"
577                "    item: 'aaaaaaaaaaaaaaaa'\n"
578                "  }\n"
579                "}");
580   verifyFormat("option (MyProto.options) = {\n"
581                "  key: valueeeeeeee\n"
582                "  keys: {\n"
583                "    sub { key: value }\n"
584                "    item: 'aaaaaaaaaaaaaaaa'\n"
585                "  }\n"
586                "}");
587   verifyFormat("option (MyProto.options) = {\n"
588                "  key: valueeeeeeee\n"
589                "  keys: {\n"
590                "    sub: [ 1, 2 ]\n"
591                "    item: 'aaaaaaaaaaaaaaaa'\n"
592                "  }\n"
593                "}");
594   verifyFormat("option (MyProto.options) = {\n"
595                "  key: valueeeeeeee\n"
596                "  keys: {\n"
597                "    sub < sub_2: {} >\n"
598                "    item: 'aaaaaaaaaaaaaaaa'\n"
599                "  }\n"
600                "}");
601   verifyFormat("option (MyProto.options) = {\n"
602                "  key: valueeeeeeee\n"
603                "  keys: {\n"
604                "    item: data\n"
605                "    sub: [ 1, 2 ]\n"
606                "    item: 'aaaaaaaaaaaaaaaa'\n"
607                "  }\n"
608                "}");
609   verifyFormat("option (MyProto.options) = {\n"
610                "  key: valueeeeeeee\n"
611                "  keys: {\n"
612                "    item: data\n"
613                "    sub < sub_2: {} >\n"
614                "    item: 'aaaaaaaaaaaaaaaa'\n"
615                "  }\n"
616                "}");
617   verifyFormat("option (MyProto.options) = {\n"
618                "  sub: {\n"
619                "    key: valueeeeeeee\n"
620                "    keys: {\n"
621                "      sub: [ 1, 2 ]\n"
622                "      item: 'aaaaaaaaaaaaaaaa'\n"
623                "    }\n"
624                "  }\n"
625                "}");
626 }
627 
628 TEST_F(FormatTestProto, PreventBreaksBetweenKeyAndSubmessages) {
629   verifyFormat("option (MyProto.options) = {\n"
630                "  submessage: {\n"
631                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
632                "  }\n"
633                "}");
634   verifyFormat("option (MyProto.options) = {\n"
635                "  submessage {\n"
636                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
637                "  }\n"
638                "}");
639   verifyFormat("option (MyProto.options) = {\n"
640                "  submessage: <\n"
641                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
642                "  >\n"
643                "}");
644   verifyFormat("option (MyProto.options) = {\n"
645                "  submessage <\n"
646                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
647                "  >\n"
648                "}");
649   verifyFormat("option (MyProto.options) = {\n"
650                "  repeatedd: [\n"
651                "    'eyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
652                "  ]\n"
653                "}");
654 }
655 
656 
657 } // end namespace tooling
658 } // end namespace clang
659