xref: /llvm-project/clang/unittests/Format/FormatTestProto.cpp (revision caf393da1823d50852f51604b3793e8f4a23c140)
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, 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 }
194 
195 TEST_F(FormatTestProto, DoesntWrapFileOptions) {
196   EXPECT_EQ(
197       "option java_package = "
198       "\"some.really.long.package.that.exceeds.the.column.limit\";",
199       format("option    java_package   =    "
200              "\"some.really.long.package.that.exceeds.the.column.limit\";"));
201 }
202 
203 TEST_F(FormatTestProto, TrailingCommentAfterFileOption) {
204   verifyFormat("option java_package = \"foo.pkg\";  // comment\n");
205 }
206 
207 TEST_F(FormatTestProto, FormatsOptions) {
208   verifyFormat("option (MyProto.options) = {\n"
209                "  field_a: OK\n"
210                "  field_b: \"OK\"\n"
211                "  field_c: \"OK\"\n"
212                "  msg_field: { field_d: 123 }\n"
213                "};");
214   verifyFormat("option (MyProto.options) = {\n"
215                "  field_a: OK\n"
216                "  field_b: \"OK\"\n"
217                "  field_c: \"OK\"\n"
218                "  msg_field: { field_d: 123 field_e: OK }\n"
219                "};");
220   verifyFormat("option (MyProto.options) = {\n"
221                "  field_a: OK  // Comment\n"
222                "  field_b: \"OK\"\n"
223                "  field_c: \"OK\"\n"
224                "  msg_field: { field_d: 123 }\n"
225                "};");
226   verifyFormat("option (MyProto.options) = {\n"
227                "  field_c: \"OK\"\n"
228                "  msg_field { field_d: 123 }\n"
229                "};");
230   verifyFormat("option (MyProto.options) = {\n"
231                "  field_a: OK\n"
232                "  field_b { field_c: OK }\n"
233                "  field_d: OKOKOK\n"
234                "  field_e: OK\n"
235                "}");
236 
237   // Support syntax with <> instead of {}.
238   verifyFormat("option (MyProto.options) = {\n"
239                "  field_c: \"OK\",\n"
240                "  msg_field: < field_d: 123 >\n"
241                "  empty: <>\n"
242                "  empty <>\n"
243                "};");
244 
245   verifyFormat("option (MyProto.options) = {\n"
246                "  field_a: OK\n"
247                "  field_b < field_c: OK >\n"
248                "  field_d: OKOKOK\n"
249                "  field_e: OK\n"
250                "}");
251 
252   verifyFormat("option (MyProto.options) = {\n"
253                "  msg_field: <>\n"
254                "  field_c: \"OK\",\n"
255                "  msg_field: < field_d: 123 >\n"
256                "  field_e: OK\n"
257                "  msg_field: < field_d: 12 >\n"
258                "};");
259 
260   verifyFormat("option (MyProto.options) = <\n"
261                "  field_a: OK\n"
262                "  field_b: \"OK\"\n"
263                "  field_c: 1\n"
264                "  field_d: 12.5\n"
265                "  field_e: OK\n"
266                ">;");
267 
268   verifyFormat("option (MyProto.options) = <\n"
269                "  field_a: OK,\n"
270                "  field_b: \"OK\",\n"
271                "  field_c: 1,\n"
272                "  field_d: 12.5,\n"
273                "  field_e: OK,\n"
274                ">;");
275 
276   verifyFormat("option (MyProto.options) = <\n"
277                "  field_a: \"OK\"\n"
278                "  msg_field: { field_b: OK }\n"
279                "  field_g: OK\n"
280                "  field_g: OK\n"
281                "  field_g: OK\n"
282                ">;");
283 
284   verifyFormat("option (MyProto.options) = <\n"
285                "  field_a: \"OK\"\n"
286                "  msg_field <\n"
287                "    field_b: OK\n"
288                "    field_c: OK\n"
289                "    field_d: OK\n"
290                "    field_e: OK\n"
291                "    field_f: OK\n"
292                "  >\n"
293                "  field_g: OK\n"
294                ">;");
295 
296   verifyFormat("option (MyProto.options) = <\n"
297                "  field_a: \"OK\"\n"
298                "  msg_field <\n"
299                "    field_b: OK,\n"
300                "    field_c: OK,\n"
301                "    field_d: OK,\n"
302                "    field_e: OK,\n"
303                "    field_f: OK\n"
304                "  >\n"
305                "  field_g: OK\n"
306                ">;");
307 
308   verifyFormat("option (MyProto.options) = <\n"
309                "  field_a: \"OK\"\n"
310                "  msg_field: <\n"
311                "    field_b: OK\n"
312                "    field_c: OK\n"
313                "    field_d: OK\n"
314                "    field_e: OK\n"
315                "    field_f: OK\n"
316                "  >\n"
317                "  field_g: OK\n"
318                ">;");
319 
320   verifyFormat("option (MyProto.options) = <\n"
321                "  field_a: \"OK\"\n"
322                "  msg_field: {\n"
323                "    field_b: OK\n"
324                "    field_c: OK\n"
325                "    field_d: OK\n"
326                "    field_e: OK\n"
327                "    field_f: OK\n"
328                "  }\n"
329                "  field_g: OK\n"
330                ">;");
331 
332   verifyFormat("option (MyProto.options) = <\n"
333                "  field_a: \"OK\"\n"
334                "  msg_field {\n"
335                "    field_b: OK\n"
336                "    field_c: OK\n"
337                "    field_d: OK\n"
338                "    field_e: OK\n"
339                "    field_f: OK\n"
340                "  }\n"
341                "  field_g: OK\n"
342                ">;");
343 
344   verifyFormat("option (MyProto.options) = {\n"
345                "  field_a: \"OK\"\n"
346                "  msg_field <\n"
347                "    field_b: OK\n"
348                "    field_c: OK\n"
349                "    field_d: OK\n"
350                "    field_e: OK\n"
351                "    field_f: OK\n"
352                "  >\n"
353                "  field_g: OK\n"
354                "};");
355 
356   verifyFormat("option (MyProto.options) = {\n"
357                "  field_a: \"OK\"\n"
358                "  msg_field: <\n"
359                "    field_b: OK\n"
360                "    field_c: OK\n"
361                "    field_d: OK\n"
362                "    field_e: OK\n"
363                "    field_f: OK\n"
364                "  >\n"
365                "  field_g: OK\n"
366                "};");
367 
368   verifyFormat("option (MyProto.options) = <\n"
369                "  field_a: \"OK\"\n"
370                "  msg_field {\n"
371                "    field_b: OK\n"
372                "    field_c: OK\n"
373                "    field_d: OK\n"
374                "    msg_field <\n"
375                "      field_A: 1\n"
376                "      field_B: 2\n"
377                "      field_C: 3\n"
378                "      field_D: 4\n"
379                "      field_E: 5\n"
380                "    >\n"
381                "    msg_field < field_A: 1 field_B: 2 field_C: 3 f_D: 4 >\n"
382                "    field_e: OK\n"
383                "    field_f: OK\n"
384                "  }\n"
385                "  field_g: OK\n"
386                ">;");
387 
388   verifyFormat("option (MyProto.options) = <\n"
389                "  data1 < key1: value1 >\n"
390                "  data2 { key2: value2 }\n"
391                ">;");
392 
393   verifyFormat("option (MyProto.options) = <\n"
394                "  app_id: 'com.javax.swing.salsa.latino'\n"
395                "  head_id: 1\n"
396                "  data < key: value >\n"
397                ">;");
398 
399   verifyFormat("option (MyProto.options) = {\n"
400                "  app_id: 'com.javax.swing.salsa.latino'\n"
401                "  head_id: 1\n"
402                "  headheadheadheadheadhead_id: 1\n"
403                "  product_data { product { 1 } }\n"
404                "};");
405 }
406 
407 TEST_F(FormatTestProto, DoesntWrapPackageStatements) {
408   verifyFormat(
409       "package"
410       " some.really.long.package.that.exceeds.the.column.limit00000000;");
411 }
412 
413 TEST_F(FormatTestProto, TrailingCommentAfterPackage) {
414   verifyFormat("package foo.pkg;  // comment\n");
415 }
416 
417 TEST_F(FormatTestProto, FormatsService) {
418   verifyFormat("service SearchService {\n"
419                "  rpc Search(SearchRequest) returns (SearchResponse) {\n"
420                "    option foo = true;\n"
421                "  }\n"
422                "};");
423 }
424 
425 TEST_F(FormatTestProto, ExtendingMessage) {
426   verifyFormat("extend .foo.Bar {}");
427 }
428 
429 TEST_F(FormatTestProto, FormatsImports) {
430   verifyFormat("import \"a.proto\";\n"
431                "import \"b.proto\";\n"
432                "// comment\n"
433                "message A {}");
434 
435   verifyFormat("import public \"a.proto\";\n"
436                "import \"b.proto\";\n"
437                "// comment\n"
438                "message A {}");
439 
440   // Missing semicolons should not confuse clang-format.
441   verifyFormat("import \"a.proto\"\n"
442                "import \"b.proto\"\n"
443                "// comment\n"
444                "message A {}");
445 }
446 
447 TEST_F(FormatTestProto, KeepsLongStringLiteralsOnSameLine) {
448   verifyFormat(
449       "option (MyProto.options) = {\n"
450       "  foo: {\n"
451       "    text: \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasaaaaaaaa\"\n"
452       "  }\n"
453       "}");
454 }
455 
456 TEST_F(FormatTestProto, FormatsOptionsExtensions) {
457   verifyFormat("option (MyProto.options) = {\n"
458                "  msg_field: { field_d: 123 }\n"
459                "  [ext.t/u] { key: value }\n"
460                "  key: value\n"
461                "  [t.u/v] <\n"
462                "    [ext] { key: value }\n"
463                "  >\n"
464                "};");
465 }
466 
467 TEST_F(FormatTestProto, SpacesAroundPercents) {
468   verifyFormat("option (MyProto.options) = {\n"
469                "  key: %lld\n"
470                "  key: 0x%04x\n"
471                "  key: \"%d %d\"\n"
472                "};");
473 }
474 
475 TEST_F(FormatTestProto, FormatsRepeatedListInitializersInOptions) {
476   verifyFormat("option (MyProto.options) = {\n"
477                "  key: item\n"
478                "  keys: [\n"
479                "    'ala',\n"
480                "    'bala',\n"
481                "    'porto',\n"
482                "    'kala',\n"
483                "    'too',\n"
484                "    'long',\n"
485                "    'long',\n"
486                "    'long'\n"
487                "  ]\n"
488                "  key: [ item ]\n"
489                "  msg {\n"
490                "    key: item\n"
491                "    keys: [\n"
492                "      'ala',\n"
493                "      'bala',\n"
494                "      'porto',\n"
495                "      'kala',\n"
496                "      'too',\n"
497                "      'long',\n"
498                "      'long'\n"
499                "    ]\n"
500                "  }\n"
501                "  key: value\n"
502                "};");
503 }
504 
505 TEST_F(FormatTestProto, AcceptsOperatorAsKeyInOptions) {
506   verifyFormat("option (MyProto.options) = {\n"
507                "  bbbbbbbbb: <\n"
508                "    ccccccccccccccccccccccc: <\n"
509                "      operator: 1\n"
510                "      operator: 2\n"
511                "      operator: 3\n"
512                "      operator { key: value }\n"
513                "    >\n"
514                "  >\n"
515                "};");
516 }
517 
518 TEST_F(FormatTestProto, BreaksEntriesOfSubmessagesContainingSubmessages) {
519   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
520   Style.ColumnLimit = 60;
521   // The column limit allows for the keys submessage to be put on 1 line, but we
522   // break it since it contains a submessage an another entry.
523   verifyFormat("option (MyProto.options) = {\n"
524                "  key: valueeeeeeee\n"
525                "  keys: {\n"
526                "    item: 'aaaaaaaaaaaaaaaa'\n"
527                "    sub <>\n"
528                "  }\n"
529                "}");
530   verifyFormat("option (MyProto.options) = {\n"
531                "  key: valueeeeeeee\n"
532                "  keys: {\n"
533                "    item: 'aaaaaaaaaaaaaaaa'\n"
534                "    sub {}\n"
535                "  }\n"
536                "}");
537   verifyFormat("option (MyProto.options) = {\n"
538                "  key: valueeeeeeee\n"
539                "  keys: {\n"
540                "    sub {}\n"
541                "    sub: <>\n"
542                "    sub: []\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: { msg: 1 }\n"
557                "  }\n"
558                "}");
559   verifyFormat("option (MyProto.options) = {\n"
560                "  key: valueeeeeeee\n"
561                "  keys: {\n"
562                "    item: 'aaaaaaaaaaa'\n"
563                "    sub < msg: 1 >\n"
564                "  }\n"
565                "}");
566   verifyFormat("option (MyProto.options) = {\n"
567                "  key: valueeeeeeee\n"
568                "  keys: {\n"
569                "    item: 'aaaaaaaaaaa'\n"
570                "    sub: [ msg: 1 ]\n"
571                "  }\n"
572                "}");
573   verifyFormat("option (MyProto.options) = {\n"
574                "  key: valueeeeeeee\n"
575                "  keys: <\n"
576                "    item: 'aaaaaaaaaaa'\n"
577                "    sub: [ 1, 2 ]\n"
578                "  >\n"
579                "}");
580   verifyFormat("option (MyProto.options) = {\n"
581                "  key: valueeeeeeee\n"
582                "  keys: {\n"
583                "    sub {}\n"
584                "    item: 'aaaaaaaaaaaaaaaa'\n"
585                "  }\n"
586                "}");
587   verifyFormat("option (MyProto.options) = {\n"
588                "  key: valueeeeeeee\n"
589                "  keys: {\n"
590                "    sub: []\n"
591                "    item: 'aaaaaaaaaaaaaaaa'\n"
592                "  }\n"
593                "}");
594   verifyFormat("option (MyProto.options) = {\n"
595                "  key: valueeeeeeee\n"
596                "  keys: {\n"
597                "    sub <>\n"
598                "    item: 'aaaaaaaaaaaaaaaa'\n"
599                "  }\n"
600                "}");
601   verifyFormat("option (MyProto.options) = {\n"
602                "  key: valueeeeeeee\n"
603                "  keys: {\n"
604                "    sub { key: value }\n"
605                "    item: 'aaaaaaaaaaaaaaaa'\n"
606                "  }\n"
607                "}");
608   verifyFormat("option (MyProto.options) = {\n"
609                "  key: valueeeeeeee\n"
610                "  keys: {\n"
611                "    sub: [ 1, 2 ]\n"
612                "    item: 'aaaaaaaaaaaaaaaa'\n"
613                "  }\n"
614                "}");
615   verifyFormat("option (MyProto.options) = {\n"
616                "  key: valueeeeeeee\n"
617                "  keys: {\n"
618                "    sub < sub_2: {} >\n"
619                "    item: 'aaaaaaaaaaaaaaaa'\n"
620                "  }\n"
621                "}");
622   verifyFormat("option (MyProto.options) = {\n"
623                "  key: valueeeeeeee\n"
624                "  keys: {\n"
625                "    item: data\n"
626                "    sub: [ 1, 2 ]\n"
627                "    item: 'aaaaaaaaaaaaaaaa'\n"
628                "  }\n"
629                "}");
630   verifyFormat("option (MyProto.options) = {\n"
631                "  key: valueeeeeeee\n"
632                "  keys: {\n"
633                "    item: data\n"
634                "    sub < sub_2: {} >\n"
635                "    item: 'aaaaaaaaaaaaaaaa'\n"
636                "  }\n"
637                "}");
638   verifyFormat("option (MyProto.options) = {\n"
639                "  sub: {\n"
640                "    key: valueeeeeeee\n"
641                "    keys: {\n"
642                "      sub: [ 1, 2 ]\n"
643                "      item: 'aaaaaaaaaaaaaaaa'\n"
644                "    }\n"
645                "  }\n"
646                "}");
647 }
648 
649 TEST_F(FormatTestProto, PreventBreaksBetweenKeyAndSubmessages) {
650   verifyFormat("option (MyProto.options) = {\n"
651                "  submessage: {\n"
652                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
653                "  }\n"
654                "}");
655   verifyFormat("option (MyProto.options) = {\n"
656                "  submessage {\n"
657                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
658                "  }\n"
659                "}");
660   verifyFormat("option (MyProto.options) = {\n"
661                "  submessage: <\n"
662                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
663                "  >\n"
664                "}");
665   verifyFormat("option (MyProto.options) = {\n"
666                "  submessage <\n"
667                "    key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
668                "  >\n"
669                "}");
670   verifyFormat("option (MyProto.options) = {\n"
671                "  repeatedd: [\n"
672                "    'eyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
673                "  ]\n"
674                "}");
675 }
676 
677 } // namespace format
678 } // end namespace clang
679