xref: /llvm-project/clang/unittests/Format/FormatTestTextProto.cpp (revision 69ecd2484f0d363537afc0157bd6a946fccf8453)
1 //===- unittest/Format/FormatTestTextProto.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 FormatTestTextProto : 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, const FormatStyle &Style) {
34     return format(Code, 0, Code.size(), Style);
35   }
36 
37   static void _verifyFormat(const char *File, int Line, llvm::StringRef Code,
38                             const FormatStyle &Style) {
39     ::testing::ScopedTrace t(File, Line, ::testing::Message() << Code.str());
40     EXPECT_EQ(Code.str(), format(Code, Style)) << "Expected code is not stable";
41     EXPECT_EQ(Code.str(), format(test::messUp(Code), Style));
42   }
43 
44   static void _verifyFormat(const char *File, int Line, llvm::StringRef Code) {
45     FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
46     Style.ColumnLimit = 60; // To make writing tests easier.
47     _verifyFormat(File, Line, Code, Style);
48   }
49 };
50 
51 #define verifyFormat(...) _verifyFormat(__FILE__, __LINE__, __VA_ARGS__)
52 
53 TEST_F(FormatTestTextProto, KeepsTopLevelEntriesFittingALine) {
54   verifyFormat("field_a: OK field_b: OK field_c: OK field_d: OK field_e: OK");
55 }
56 
57 TEST_F(FormatTestTextProto, SupportsMessageFields) {
58   verifyFormat("msg_field: {}");
59 
60   verifyFormat("msg_field: { field_a: A }");
61 
62   verifyFormat("msg_field: { field_a: \"OK\" field_b: 123 }");
63 
64   verifyFormat("msg_field: {\n"
65                "  field_a: 1\n"
66                "  field_b: OK\n"
67                "  field_c: \"OK\"\n"
68                "  field_d: 123\n"
69                "  field_e: 23\n"
70                "}");
71 
72   verifyFormat("msg_field {}");
73 
74   verifyFormat("msg_field { field_a: A }");
75 
76   verifyFormat("msg_field { field_a: \"OK\" field_b: 123 }");
77 
78   verifyFormat("msg_field {\n"
79                "  field_a: 1\n"
80                "  field_b: OK\n"
81                "  field_c: \"OK\"\n"
82                "  field_d: 123\n"
83                "  field_e: 23.0\n"
84                "  field_f: false\n"
85                "  field_g: 'lala'\n"
86                "  field_h: 1234.567e-89\n"
87                "}");
88 
89   verifyFormat("msg_field: { msg_field { field_a: 1 } }");
90 
91   verifyFormat("id: \"ala.bala\"\n"
92                "item { type: ITEM_A rank: 1 score: 90.0 }\n"
93                "item { type: ITEM_B rank: 2 score: 70.5 }\n"
94                "item {\n"
95                "  type: ITEM_A\n"
96                "  rank: 3\n"
97                "  score: 20.0\n"
98                "  description: \"the third item has a description\"\n"
99                "}");
100 }
101 
102 TEST_F(FormatTestTextProto, AvoidsTopLevelBinPacking) {
103   verifyFormat("field_a: OK\n"
104                "field_b: OK\n"
105                "field_c: OK\n"
106                "field_d: OK\n"
107                "field_e: OK\n"
108                "field_f: OK");
109 
110   verifyFormat("field_a: OK\n"
111                "field_b: \"OK\"\n"
112                "field_c: \"OK\"\n"
113                "msg_field: { field_d: 123 }\n"
114                "field_e: OK\n"
115                "field_f: OK");
116 
117   verifyFormat("field_a: OK\n"
118                "field_b: \"OK\"\n"
119                "field_c: \"OK\"\n"
120                "msg_field: { field_d: 123 field_e: OK }");
121 
122   verifyFormat("a: {\n"
123                "  field_a: OK\n"
124                "  field_b { field_c: OK }\n"
125                "  field_d: OKOKOK\n"
126                "  field_e: OK\n"
127                "}");
128 
129   verifyFormat("field_a: OK,\n"
130                "field_b { field_c: OK },\n"
131                "field_d: OKOKOK,\n"
132                "field_e: OK");
133 }
134 
135 TEST_F(FormatTestTextProto, AddsNewlinesAfterTrailingComments) {
136   verifyFormat("field_a: OK  // Comment\n"
137                "field_b: 1");
138 
139   verifyFormat("field_a: OK\n"
140                "msg_field: {\n"
141                "  field_b: OK  // Comment\n"
142                "}");
143 
144   verifyFormat("field_a: OK\n"
145                "msg_field {\n"
146                "  field_b: OK  // Comment\n"
147                "}");
148 }
149 
150 TEST_F(FormatTestTextProto, ImplicitStringLiteralConcatenation) {
151   verifyFormat("field_a: 'aaaaa'\n"
152                "         'bbbbb'");
153   verifyFormat("field_a: \"aaaaa\"\n"
154                "         \"bbbbb\"");
155   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
156   Style.AlwaysBreakBeforeMultilineStrings = true;
157   verifyFormat("field_a:\n"
158                "    'aaaaa'\n"
159                "    'bbbbb'",
160                Style);
161   verifyFormat("field_a:\n"
162                "    \"aaaaa\"\n"
163                "    \"bbbbb\"",
164                Style);
165 }
166 
167 TEST_F(FormatTestTextProto, SupportsAngleBracketMessageFields) {
168   // Single-line tests
169   verifyFormat("msg_field <>");
170   verifyFormat("msg_field: <>");
171   verifyFormat("msg_field < field_a: OK >");
172   verifyFormat("msg_field: < field_a: 123 >");
173   verifyFormat("msg_field < field_a <> >");
174   verifyFormat("msg_field < field_a < field_b <> > >");
175   verifyFormat("msg_field: < field_a < field_b: <> > >");
176   verifyFormat("msg_field < field_a: OK, field_b: \"OK\" >");
177   verifyFormat("msg_field: < field_a: OK, field_b: \"OK\" >");
178   // Multiple lines tests
179   verifyFormat("msg_field <\n"
180                "  field_a: OK\n"
181                "  field_b: <>,\n"
182                "  field_c: OK\n"
183                ">");
184 
185   verifyFormat("msg_field <\n"
186                "  field_a { field_b: 1 },\n"
187                "  field_c: < f_d: 2 >\n"
188                ">");
189 
190   verifyFormat("msg_field: <\n"
191                "  field_a: OK\n"
192                "  field_b: <>,\n"
193                "  field_c: OK\n"
194                ">");
195 
196   verifyFormat("msg_field: <\n"
197                "  field_a { field_b: 1 },\n"
198                "  field_c: < fd_d: 2 >\n"
199                ">");
200 
201   verifyFormat("field_a: \"OK\",\n"
202                "msg_field: < field_b: 123 >,\n"
203                "field_c: {}");
204 
205   verifyFormat("field_a < field_b: 1 >,\n"
206                "msg_fid: < fiel_b: 123 >,\n"
207                "field_c <>");
208 
209   verifyFormat("field_a < field_b: 1 >\n"
210                "msg_fied: < field_b: 123 >\n"
211                "field_c <>");
212 
213   verifyFormat("field <\n"
214                "  field < field: <> >,\n"
215                "  field <>\n"
216                ">\n"
217                "field: < field: 1 >");
218 
219   verifyFormat("msg_field <\n"
220                "  field_a: OK\n"
221                "  field_b: \"OK\"\n"
222                "  field_c: 1\n"
223                "  field_d: 12.5\n"
224                "  field_e: OK\n"
225                ">");
226 
227   verifyFormat("msg_field: <>\n"
228                "field_c: \"OK\",\n"
229                "msg_field: < field_d: 123 >\n"
230                "field_e: OK\n"
231                "msg_field: < field_d: 12 >");
232 
233   verifyFormat("field_a: OK,\n"
234                "field_b < field_c: OK >,\n"
235                "field_d: < 12.5 >,\n"
236                "field_e: OK");
237 
238   verifyFormat("field_a: OK\n"
239                "field_b < field_c: OK >\n"
240                "field_d: < 12.5 >\n"
241                "field_e: OKOKOK");
242 
243   verifyFormat("msg_field <\n"
244                "  field_a: OK,\n"
245                "  field_b < field_c: OK >,\n"
246                "  field_d: < 12.5 >,\n"
247                "  field_e: OK\n"
248                ">");
249 
250   verifyFormat("msg_field <\n"
251                "  field_a: < field: OK >,\n"
252                "  field_b < field_c: OK >,\n"
253                "  field_d: < 12.5 >,\n"
254                "  field_e: OK,\n"
255                ">");
256 
257   verifyFormat("msg_field: <\n"
258                "  field_a: \"OK\"\n"
259                "  msg_field: { field_b: OK }\n"
260                "  field_g: OK\n"
261                "  field_g: OK\n"
262                "  field_g: OK\n"
263                ">");
264 
265   verifyFormat("field_a {\n"
266                "  field_d: ok\n"
267                "  field_b: < field_c: 1 >\n"
268                "  field_d: ok\n"
269                "  field_d: ok\n"
270                "}");
271 
272   verifyFormat("field_a: {\n"
273                "  field_d: ok\n"
274                "  field_b: < field_c: 1 >\n"
275                "  field_d: ok\n"
276                "  field_d: ok\n"
277                "}");
278 
279   verifyFormat("field_a: <\n"
280                "  f1: 1,\n"
281                "  f2: <>\n"
282                ">\n"
283                "field_b <\n"
284                "  field_b1: <>\n"
285                "  field_b2: ok,\n"
286                "  field_b3: <\n"
287                "    field_x {}  // Comment\n"
288                "    field_y: { field_z: 1 }\n"
289                "    field_w: ok\n"
290                "  >\n"
291                "  field {\n"
292                "    field_x <>  // Comment\n"
293                "    field_y: < field_z: 1 >\n"
294                "    field_w: ok\n"
295                "    msg_field: <\n"
296                "      field: <>\n"
297                "      field: < field: 1 >\n"
298                "      field: < field: 2 >\n"
299                "      field: < field: 3 >\n"
300                "      field: < field: 4 >\n"
301                "      field: ok\n"
302                "    >\n"
303                "  }\n"
304                ">\n"
305                "field: OK,\n"
306                "field_c < field < field <> > >");
307 
308   verifyFormat("app_id: 'com.javax.swing.salsa.latino'\n"
309                "head_id: 1\n"
310                "data < key: value >");
311 
312   verifyFormat("app_id: 'com.javax.swing.salsa.latino'\n"
313                "head_id: 1\n"
314                "data < key: value >\n"
315                "tail_id: 2");
316 
317   verifyFormat("app_id: 'com.javax.swing.salsa.latino'\n"
318                "head_id: 1\n"
319                "data < key: value >\n"
320                "data { key: value }");
321 
322   verifyFormat("app {\n"
323                "  app_id: 'com.javax.swing.salsa.latino'\n"
324                "  head_id: 1\n"
325                "  data < key: value >\n"
326                "}");
327 
328   verifyFormat("app: {\n"
329                "  app_id: 'com.javax.swing.salsa.latino'\n"
330                "  head_id: 1\n"
331                "  data < key: value >\n"
332                "}");
333 
334   verifyFormat("app_id: 'com.javax.swing.salsa.latino'\n"
335                "headheadheadheadheadhead_id: 1\n"
336                "product_data { product { 1 } }");
337 
338   verifyFormat("app_id: 'com.javax.swing.salsa.latino'\n"
339                "headheadheadheadheadhead_id: 1\n"
340                "product_data < product { 1 } >");
341 
342   verifyFormat("app_id: 'com.javax.swing.salsa.latino'\n"
343                "headheadheadheadheadhead_id: 1\n"
344                "product_data < product < 1 > >");
345 
346   verifyFormat("app <\n"
347                "  app_id: 'com.javax.swing.salsa.latino'\n"
348                "  headheadheadheadheadhead_id: 1\n"
349                "  product_data < product { 1 } >\n"
350                ">");
351 
352   verifyFormat("dcccwrnfioeruvginerurneitinfo {\n"
353                "  exte3nsionrnfvui { key: value }\n"
354                "}");
355 }
356 
357 TEST_F(FormatTestTextProto, DiscardsUnbreakableTailIfCanBreakAfter) {
358   // The two closing braces count towards the string UnbreakableTailLength, but
359   // since we have broken after the corresponding opening braces, we don't
360   // consider that length for string breaking.
361   verifyFormat(
362       "foo: {\n"
363       "  bar: {\n"
364       "    text: \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"\n"
365       "  }\n"
366       "}");
367 }
368 
369 TEST_F(FormatTestTextProto, KeepsLongStringLiteralsOnSameLine) {
370   verifyFormat(
371       "foo: {\n"
372       "  text: \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasaaaaaaaaaa\"\n"
373       "}");
374 }
375 
376 TEST_F(FormatTestTextProto, KeepsCommentsIndentedInList) {
377   verifyFormat("aaaaaaaaaa: 100\n"
378                "bbbbbbbbbbbbbbbbbbbbbbbbbbb: 200\n"
379                "# Single line comment for stuff here.\n"
380                "cccccccccccccccccccccccc: 3849\n"
381                "# Multiline comment for stuff here.\n"
382                "# Multiline comment for stuff here.\n"
383                "# Multiline comment for stuff here.\n"
384                "cccccccccccccccccccccccc: 3849");
385 }
386 
387 TEST_F(FormatTestTextProto, UnderstandsHashComments) {
388   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
389   Style.ColumnLimit = 60; // To make writing tests easier.
390   EXPECT_EQ("aaa: 100\n"
391             "## this is a double-hash comment.\n"
392             "bb: 100\n"
393             "## another double-hash comment.\n"
394             "### a triple-hash comment\n"
395             "cc: 200\n"
396             "### another triple-hash comment\n"
397             "#### a quadriple-hash comment\n"
398             "dd: 100\n"
399             "#### another quadriple-hash comment\n",
400             format("aaa: 100\n"
401                    "##this is a double-hash comment.\n"
402                    "bb: 100\n"
403                    "## another double-hash comment.\n"
404                    "###a triple-hash comment\n"
405                    "cc: 200\n"
406                    "### another triple-hash comment\n"
407                    "####a quadriple-hash comment\n"
408                    "dd: 100\n"
409                    "#### another quadriple-hash comment\n",
410                    Style));
411 }
412 
413 TEST_F(FormatTestTextProto, FormatsExtensions) {
414   verifyFormat("[type] { key: value }");
415   verifyFormat("[type] {\n"
416                "  keyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy: value\n"
417                "}");
418   verifyFormat("[type.type] { key: value }");
419   verifyFormat("[type.type] < key: value >");
420   verifyFormat("[type.type/type.type] { key: value }");
421   verifyFormat("msg {\n"
422                "  [type.type] { key: value }\n"
423                "}");
424   verifyFormat("msg {\n"
425                "  [type.type] {\n"
426                "    keyyyyyyyyyyyyyy: valuuuuuuuuuuuuuuuuuuuuuuuuue\n"
427                "  }\n"
428                "}");
429   verifyFormat("key: value\n"
430                "[a.b] { key: value }");
431   verifyFormat("msg: <\n"
432                "  key: value\n"
433                "  [a.b.c/d.e]: < key: value >\n"
434                "  [f.g]: <\n"
435                "    key: valueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\n"
436                "    key: {}\n"
437                "  >\n"
438                "  key {}\n"
439                "  [h.i.j] < key: value >\n"
440                "  [a]: {\n"
441                "    [b.c]: {}\n"
442                "    [d] <>\n"
443                "    [e/f]: 1\n"
444                "  }\n"
445                ">");
446   verifyFormat("[longg.long.long.long.long.long.long.long.long.long.long\n"
447                "     .longg.longlong] { key: value }");
448   verifyFormat("[longg.long.long.long.long.long.long.long.long.long.long\n"
449                "     .longg.longlong] {\n"
450                "  key: value\n"
451                "  key: value\n"
452                "  key: value\n"
453                "  key: value\n"
454                "}");
455   verifyFormat("[longg.long.long.long.long.long.long.long.long.long\n"
456                "     .long/longg.longlong] { key: value }");
457   verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/\n"
458                " bbbbbbbbbbbbbb] { key: value }");
459   // These go over the column limit intentionally, since the alternative
460   // [aa..a\n] is worse.
461   verifyFormat(
462       "[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa] {\n"
463       "  key: value\n"
464       "}");
465   verifyFormat(
466       "[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa] {\n"
467       "  [type.type] {\n"
468       "    keyyyyyyyyyyyyyy: valuuuuuuuuuuuuuuuuuuuuuuuuue\n"
469       "  }\n"
470       "}");
471   verifyFormat("[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/\n"
472                " bbbbbbb] {\n"
473                "  [type.type] {\n"
474                "    keyyyyyyyyyyyyyy: valuuuuuuuuuuuuuuuuuuuuuuuuue\n"
475                "  }\n"
476                "}");
477   verifyFormat(
478       "aaaaaaaaaaaaaaa {\n"
479       "  bbbbbb {\n"
480       "    [a.b/cy] {\n"
481       "      eeeeeeeeeeeee: \"The lazy coo cat jumps over the lazy hot dog\"\n"
482       "    }\n"
483       "  }\n"
484       "}");
485 }
486 
487 TEST_F(FormatTestTextProto, SpacesAroundPercents) {
488   verifyFormat("key: %d");
489   verifyFormat("key: 0x%04x");
490   verifyFormat("key: \"%d %d\"");
491 }
492 
493 TEST_F(FormatTestTextProto, FormatsRepeatedListInitializers) {
494   verifyFormat("keys: []");
495   verifyFormat("keys: [ 1 ]");
496   verifyFormat("keys: [ 'ala', 'bala' ]");
497   verifyFormat("keys: [\n"
498                "  'ala',\n"
499                "  'bala',\n"
500                "  'porto',\n"
501                "  'kala',\n"
502                "  'too',\n"
503                "  'long',\n"
504                "  'ng'\n"
505                "]");
506   verifyFormat("key: item\n"
507                "keys: [\n"
508                "  'ala',\n"
509                "  'bala',\n"
510                "  'porto',\n"
511                "  'kala',\n"
512                "  'too',\n"
513                "  'long',\n"
514                "  'long',\n"
515                "  'long'\n"
516                "]\n"
517                "key: item\n"
518                "msg {\n"
519                "  key: item\n"
520                "  keys: [\n"
521                "    'ala',\n"
522                "    'bala',\n"
523                "    'porto',\n"
524                "    'kala',\n"
525                "    'too',\n"
526                "    'long',\n"
527                "    'long'\n"
528                "  ]\n"
529                "}\n"
530                "key: value");
531   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
532   Style.ColumnLimit = 60; // To make writing tests easier.
533   Style.Cpp11BracedListStyle = true;
534   verifyFormat("keys: [1]", Style);
535 }
536 
537 TEST_F(FormatTestTextProto, AcceptsOperatorAsKey) {
538   verifyFormat("aaaaaaaaaaa: <\n"
539                "  bbbbbbbbb: <\n"
540                "    ccccccccccccccccccccccc: <\n"
541                "      operator: 1\n"
542                "      operator: 2\n"
543                "      operator: 3\n"
544                "      operator { key: value }\n"
545                "    >\n"
546                "  >\n"
547                ">");
548 }
549 
550 TEST_F(FormatTestTextProto, BreaksConsecutiveStringLiterals) {
551   verifyFormat("ala: \"str1\"\n"
552                "     \"str2\"\n");
553 }
554 
555 TEST_F(FormatTestTextProto, PutsMultipleEntriesInExtensionsOnNewlines) {
556   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
557   verifyFormat("pppppppppp: {\n"
558                "  ssssss: \"http://example.com/blahblahblah\"\n"
559                "  ppppppp: \"sssss/MMMMMMMMMMMM\"\n"
560                "  [ns.sssss.eeeeeeeee.eeeeeeeeeeeeeee] { begin: 24 end: 252 }\n"
561                "  [ns.sssss.eeeeeeeee.eeeeeeeeeeeeeee] {\n"
562                "    begin: 24\n"
563                "    end: 252\n"
564                "    key: value\n"
565                "    key: value\n"
566                "  }\n"
567                "}",
568                Style);
569 }
570 
571 TEST_F(FormatTestTextProto, BreaksAfterBraceFollowedByClosingBraceOnNextLine) {
572   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
573   Style.ColumnLimit = 60;
574   verifyFormat("keys: [\n"
575                "  data: { item: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' }\n"
576                "]");
577   verifyFormat("keys: <\n"
578                "  data: { item: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' }\n"
579                ">");
580 }
581 
582 TEST_F(FormatTestTextProto, BreaksEntriesOfSubmessagesContainingSubmessages) {
583   FormatStyle Style = getGoogleStyle(FormatStyle::LK_TextProto);
584   Style.ColumnLimit = 60;
585   // The column limit allows for the keys submessage to be put on 1 line, but we
586   // break it since it contains a submessage an another entry.
587   verifyFormat("key: valueeeeeeee\n"
588                "keys: {\n"
589                "  item: 'aaaaaaaaaaaaaaaa'\n"
590                "  sub <>\n"
591                "}");
592   verifyFormat("key: valueeeeeeee\n"
593                "keys: {\n"
594                "  item: 'aaaaaaaaaaaaaaaa'\n"
595                "  sub {}\n"
596                "}");
597   verifyFormat("key: valueeeeeeee\n"
598                "keys: {\n"
599                "  sub {}\n"
600                "  sub: <>\n"
601                "  sub: []\n"
602                "}");
603   verifyFormat("key: valueeeeeeee\n"
604                "keys: {\n"
605                "  item: 'aaaaaaaaaaa'\n"
606                "  sub { msg: 1 }\n"
607                "}");
608   verifyFormat("key: valueeeeeeee\n"
609                "keys: {\n"
610                "  item: 'aaaaaaaaaaa'\n"
611                "  sub: { msg: 1 }\n"
612                "}");
613   verifyFormat("key: valueeeeeeee\n"
614                "keys: {\n"
615                "  item: 'aaaaaaaaaaa'\n"
616                "  sub < msg: 1 >\n"
617                "}");
618   verifyFormat("key: valueeeeeeee\n"
619                "keys: {\n"
620                "  item: 'aaaaaaaaaaa'\n"
621                "  sub: [ msg: 1 ]\n"
622                "}");
623   verifyFormat("key: valueeeeeeee\n"
624                "keys: <\n"
625                "  item: 'aaaaaaaaaaa'\n"
626                "  sub: [ 1, 2 ]\n"
627                ">");
628   verifyFormat("key: valueeeeeeee\n"
629                "keys: {\n"
630                "  sub {}\n"
631                "  item: 'aaaaaaaaaaaaaaaa'\n"
632                "}");
633   verifyFormat("key: valueeeeeeee\n"
634                "keys: {\n"
635                "  sub: []\n"
636                "  item: 'aaaaaaaaaaaaaaaa'\n"
637                "}");
638   verifyFormat("key: valueeeeeeee\n"
639                "keys: {\n"
640                "  sub <>\n"
641                "  item: 'aaaaaaaaaaaaaaaa'\n"
642                "}");
643   verifyFormat("key: valueeeeeeee\n"
644                "keys: {\n"
645                "  sub { key: value }\n"
646                "  item: 'aaaaaaaaaaaaaaaa'\n"
647                "}");
648   verifyFormat("key: valueeeeeeee\n"
649                "keys: {\n"
650                "  sub: [ 1, 2 ]\n"
651                "  item: 'aaaaaaaaaaaaaaaa'\n"
652                "}");
653   verifyFormat("key: valueeeeeeee\n"
654                "keys: {\n"
655                "  sub < sub_2: {} >\n"
656                "  item: 'aaaaaaaaaaaaaaaa'\n"
657                "}");
658   verifyFormat("key: valueeeeeeee\n"
659                "keys: {\n"
660                "  item: data\n"
661                "  sub: [ 1, 2 ]\n"
662                "  item: 'aaaaaaaaaaaaaaaa'\n"
663                "}");
664   verifyFormat("key: valueeeeeeee\n"
665                "keys: {\n"
666                "  item: data\n"
667                "  sub < sub_2: {} >\n"
668                "  item: 'aaaaaaaaaaaaaaaa'\n"
669                "}");
670   verifyFormat("sub: {\n"
671                "  key: valueeeeeeee\n"
672                "  keys: {\n"
673                "    sub: [ 1, 2 ]\n"
674                "    item: 'aaaaaaaaaaaaaaaa'\n"
675                "  }\n"
676                "}");
677   verifyFormat("sub: {\n"
678                "  key: 1\n"
679                "  sub: {}\n"
680                "}\n"
681                "# comment\n");
682   verifyFormat("sub: {\n"
683                "  key: 1\n"
684                "  # comment\n"
685                "  sub: {}\n"
686                "}");
687 }
688 
689 TEST_F(FormatTestTextProto, PreventBreaksBetweenKeyAndSubmessages) {
690   verifyFormat("submessage: {\n"
691                "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
692                "}");
693   verifyFormat("submessage {\n"
694                "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
695                "}");
696   verifyFormat("submessage: <\n"
697                "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
698                ">");
699   verifyFormat("submessage <\n"
700                "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
701                ">");
702   verifyFormat("repeatedd: [\n"
703                "  'eyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
704                "]");
705   // "{" is going over the column limit.
706   verifyFormat(
707       "submessageeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee: {\n"
708       "  key: 'aaaaa'\n"
709       "}");
710 }
711 
712 TEST_F(FormatTestTextProto, FormatsCommentsAtEndOfFile) {
713   verifyFormat("key: value\n"
714                "# endfile comment");
715   verifyFormat("key: value\n"
716                "// endfile comment");
717   verifyFormat("key: value\n"
718                "// endfile comment 1\n"
719                "// endfile comment 2");
720   verifyFormat("submessage { key: value }\n"
721                "# endfile comment");
722   verifyFormat("submessage <\n"
723                "  key: value\n"
724                "  item {}\n"
725                ">\n"
726                "# endfile comment");
727 }
728 
729 TEST_F(FormatTestTextProto, KeepsAmpersandsNextToKeys) {
730   verifyFormat("@tmpl { field: 1 }");
731   verifyFormat("@placeholder: 1");
732   verifyFormat("@name <>");
733   verifyFormat("submessage: @base { key: value }");
734   verifyFormat("submessage: @base {\n"
735                "  key: value\n"
736                "  item: {}\n"
737                "}");
738   verifyFormat("submessage: {\n"
739                "  msg: @base {\n"
740                "    yolo: {}\n"
741                "    key: value\n"
742                "  }\n"
743                "  key: value\n"
744                "}");
745 }
746 
747 } // namespace format
748 } // end namespace clang
749