clang-tools-extra/unittests/clang-tidy/IncludeInserterTest.cpp

   1 //===---- IncludeInserterTest.cpp - clang-tidy ----------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "../clang-tidy/utils/IncludeInserter.h"
  10 #include "clang/Lex/Preprocessor.h"
  11 #include "clang/Frontend/CompilerInstance.h"
  12 #include "ClangTidyTest.h"
  13 #include "gtest/gtest.h"
  14
  15 // FIXME: Canonicalize paths correctly on windows.
  16 // Currently, adding virtual files will canonicalize the paths before
  17 // storing the virtual entries.
  18 // When resolving virtual entries in the FileManager, the paths (for
  19 // example coming from a #include directive) are not canonicalized
  20 // to native paths; thus, the virtual file is not found.
  21 // This needs to be fixed in the FileManager before we can make
  22 // clang-tidy tests work.
  23 #if !defined(_WIN32)
  24
  25 namespace clang {
  26 namespace tidy {
  27 namespace {
  28
  29 class IncludeInserterCheckBase : public ClangTidyCheck {
  30 public:
  31   IncludeInserterCheckBase(StringRef CheckName, ClangTidyContext *Context,
  32                            utils::IncludeSorter::IncludeStyle Style =
  33                                utils::IncludeSorter::IS_Google,
  34                            bool SelfContainedDiags = false)
  35       : ClangTidyCheck(CheckName, Context),
  36         Inserter(Style, SelfContainedDiags) {}
  37
  38   void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
  39                            Preprocessor *ModuleExpanderPP) override {
  40     Inserter.registerPreprocessor(PP);
  41   }
  42
  43   void registerMatchers(ast_matchers::MatchFinder *Finder) override {
  44     Finder->addMatcher(ast_matchers::declStmt().bind("stmt"), this);
  45   }
  46
  47   void check(const ast_matchers::MatchFinder::MatchResult &Result) override {
  48     auto Diag = diag(Result.Nodes.getNodeAs<DeclStmt>("stmt")->getBeginLoc(),
  49                      "foo, bar");
  50     for (StringRef Header : headersToInclude()) {
  51       Diag << Inserter.createMainFileIncludeInsertion(Header);
  52     }
  53   }
  54
  55   virtual std::vector<StringRef> headersToInclude() const = 0;
  56
  57   utils::IncludeInserter Inserter;
  58 };
  59
  60 class NonSystemHeaderInserterCheck : public IncludeInserterCheckBase {
  61 public:
  62   NonSystemHeaderInserterCheck(StringRef CheckName, ClangTidyContext *Context)
  63       : IncludeInserterCheckBase(CheckName, Context) {}
  64
  65   std::vector<StringRef> headersToInclude() const override {
  66     return {"path/to/header.h"};
  67   }
  68 };
  69
  70 class EarlyInAlphabetHeaderInserterCheck : public IncludeInserterCheckBase {
  71 public:
  72   EarlyInAlphabetHeaderInserterCheck(StringRef CheckName, ClangTidyContext *Context)
  73       : IncludeInserterCheckBase(CheckName, Context) {}
  74
  75   std::vector<StringRef> headersToInclude() const override {
  76     return {"a/header.h"};
  77   }
  78 };
  79
  80 class MultipleHeaderInserterCheck : public IncludeInserterCheckBase {
  81 public:
  82   MultipleHeaderInserterCheck(StringRef CheckName, ClangTidyContext *Context)
  83       : IncludeInserterCheckBase(CheckName, Context) {}
  84
  85   std::vector<StringRef> headersToInclude() const override {
  86     return {"path/to/header.h", "path/to/header2.h", "path/to/header.h"};
  87   }
  88 };
  89
  90 class MultipleHeaderSingleInserterCheck : public IncludeInserterCheckBase {
  91 public:
  92   MultipleHeaderSingleInserterCheck(StringRef CheckName,
  93                                     ClangTidyContext *Context)
  94       : IncludeInserterCheckBase(CheckName, Context,
  95                                  utils::IncludeSorter::IS_Google,
  96                                  /*SelfContainedDiags=*/true) {}
  97
  98   std::vector<StringRef> headersToInclude() const override {
  99     return {"path/to/header.h", "path/to/header2.h", "path/to/header.h"};
 100   }
 101 };
 102
 103 class CSystemIncludeInserterCheck : public IncludeInserterCheckBase {
 104 public:
 105   CSystemIncludeInserterCheck(StringRef CheckName, ClangTidyContext *Context)
 106       : IncludeInserterCheckBase(CheckName, Context) {}
 107
 108   std::vector<StringRef> headersToInclude() const override {
 109     return {"<stdlib.h>"};
 110   }
 111 };
 112
 113 class CXXSystemIncludeInserterCheck : public IncludeInserterCheckBase {
 114 public:
 115   CXXSystemIncludeInserterCheck(StringRef CheckName, ClangTidyContext *Context)
 116       : IncludeInserterCheckBase(CheckName, Context) {}
 117
 118   std::vector<StringRef> headersToInclude() const override { return {"<set>"}; }
 119 };
 120
 121 class InvalidIncludeInserterCheck : public IncludeInserterCheckBase {
 122 public:
 123   InvalidIncludeInserterCheck(StringRef CheckName, ClangTidyContext *Context)
 124       : IncludeInserterCheckBase(CheckName, Context) {}
 125
 126   std::vector<StringRef> headersToInclude() const override {
 127     return {"a.h", "<stdlib.h", "cstdlib>", "b.h", "<c.h>", "<d>"};
 128   }
 129 };
 130
 131 class ObjCEarlyInAlphabetHeaderInserterCheck : public IncludeInserterCheckBase {
 132 public:
 133   ObjCEarlyInAlphabetHeaderInserterCheck(StringRef CheckName,
 134                                          ClangTidyContext *Context)
 135       : IncludeInserterCheckBase(CheckName, Context,
 136                                  utils::IncludeSorter::IS_Google_ObjC) {}
 137
 138   std::vector<StringRef> headersToInclude() const override {
 139     return {"a/header.h"};
 140   }
 141 };
 142
 143 class ObjCCategoryHeaderInserterCheck : public IncludeInserterCheckBase {
 144 public:
 145   ObjCCategoryHeaderInserterCheck(StringRef CheckName,
 146                                   ClangTidyContext *Context)
 147       : IncludeInserterCheckBase(CheckName, Context,
 148                                  utils::IncludeSorter::IS_Google_ObjC) {}
 149
 150   std::vector<StringRef> headersToInclude() const override {
 151     return {"top_level_test_header+foo.h"};
 152   }
 153 };
 154
 155 class ObjCGeneratedHeaderInserterCheck : public IncludeInserterCheckBase {
 156 public:
 157   ObjCGeneratedHeaderInserterCheck(StringRef CheckName,
 158                                    ClangTidyContext *Context)
 159       : IncludeInserterCheckBase(CheckName, Context,
 160                                  utils::IncludeSorter::IS_Google_ObjC) {}
 161
 162   std::vector<StringRef> headersToInclude() const override {
 163     return {"clang_tidy/tests/generated_file.proto.h"};
 164   }
 165 };
 166
 167 template <typename Check>
 168 std::string runCheckOnCode(StringRef Code, StringRef Filename) {
 169   std::vector<ClangTidyError> Errors;
 170   return test::runCheckOnCode<Check>(Code, &Errors, Filename, std::nullopt,
 171                                      ClangTidyOptions(),
 172                                      {// Main file include
 173                                       {"clang_tidy/tests/"
 174                                        "insert_includes_test_header.h",
 175                                        "\n"},
 176                                       // Top-level main file include +
 177                                       // category.
 178                                       {"top_level_test_header.h", "\n"},
 179                                       {"top_level_test_header+foo.h", "\n"},
 180                                       // ObjC category.
 181                                       {"clang_tidy/tests/"
 182                                        "insert_includes_test_header+foo.h",
 183                                        "\n"},
 184                                       // Non system headers
 185                                       {"a/header.h", "\n"},
 186                                       {"path/to/a/header.h", "\n"},
 187                                       {"path/to/z/header.h", "\n"},
 188                                       {"path/to/header.h", "\n"},
 189                                       {"path/to/header2.h", "\n"},
 190                                       // Generated headers
 191                                       {"clang_tidy/tests/"
 192                                        "generated_file.proto.h",
 193                                        "\n"},
 194                                       // Fake system headers.
 195                                       {"stdlib.h", "\n"},
 196                                       {"unistd.h", "\n"},
 197                                       {"list", "\n"},
 198                                       {"map", "\n"},
 199                                       {"set", "\n"},
 200                                       {"vector", "\n"}});
 201 }
 202
 203 TEST(IncludeInserterTest, InsertAfterLastNonSystemInclude) {
 204   const char *PreCode = R"(
 205 #include "clang_tidy/tests/insert_includes_test_header.h"
 206
 207 #include <list>
 208 #include <map>
 209
 210 #include "path/to/a/header.h"
 211
 212 void foo() {
 213   int a = 0;
 214 })";
 215   const char *PostCode = R"(
 216 #include "clang_tidy/tests/insert_includes_test_header.h"
 217
 218 #include <list>
 219 #include <map>
 220
 221 #include "path/to/a/header.h"
 222 #include "path/to/header.h"
 223
 224 void foo() {
 225   int a = 0;
 226 })";
 227
 228   EXPECT_EQ(PostCode,
 229             runCheckOnCode<NonSystemHeaderInserterCheck>(
 230                 PreCode, "clang_tidy/tests/insert_includes_test_input2.cc"));
 231 }
 232
 233 TEST(IncludeInserterTest, InsertMultipleIncludesAndDeduplicate) {
 234   const char *PreCode = R"(
 235 #include "clang_tidy/tests/insert_includes_test_header.h"
 236
 237 #include <list>
 238 #include <map>
 239
 240 #include "path/to/a/header.h"
 241
 242 void foo() {
 243   int a = 0;
 244 })";
 245   const char *PostCode = R"(
 246 #include "clang_tidy/tests/insert_includes_test_header.h"
 247
 248 #include <list>
 249 #include <map>
 250
 251 #include "path/to/a/header.h"
 252 #include "path/to/header.h"
 253 #include "path/to/header2.h"
 254
 255 void foo() {
 256   int a = 0;
 257 })";
 258
 259   EXPECT_EQ(PostCode,
 260             runCheckOnCode<MultipleHeaderInserterCheck>(
 261                 PreCode, "clang_tidy/tests/insert_includes_test_input2.cc"));
 262 }
 263
 264 TEST(IncludeInserterTest, InsertMultipleIncludesNoDeduplicate) {
 265   const char *PreCode = R"(
 266 #include "clang_tidy/tests/insert_includes_test_header.h"
 267
 268 #include <list>
 269 #include <map>
 270
 271 #include "path/to/a/header.h"
 272
 273 void foo() {
 274   int a = 0;
 275 })";
 276   // FIXME: ClangFormat bug - https://bugs.llvm.org/show_bug.cgi?id=49298
 277   // clang-format off
 278   const char *PostCode = R"(
 279 #include "clang_tidy/tests/insert_includes_test_header.h"
 280
 281 #include <list>
 282 #include <map>
 283
 284 #include "path/to/a/header.h"
 285 #include "path/to/header.h"
 286 #include "path/to/header2.h"
 287 #include "path/to/header.h"
 288
 289 void foo() {
 290   int a = 0;
 291 })";
 292   // clang-format on
 293
 294   EXPECT_EQ(PostCode,
 295             runCheckOnCode<MultipleHeaderSingleInserterCheck>(
 296                 PreCode, "clang_tidy/tests/insert_includes_test_input2.cc"));
 297 }
 298
 299 TEST(IncludeInserterTest, InsertBeforeFirstNonSystemInclude) {
 300   const char *PreCode = R"(
 301 #include "clang_tidy/tests/insert_includes_test_header.h"
 302
 303 #include <list>
 304 #include <map>
 305
 306 #include "path/to/z/header.h"
 307
 308 void foo() {
 309   int a = 0;
 310 })";
 311   const char *PostCode = R"(
 312 #include "clang_tidy/tests/insert_includes_test_header.h"
 313
 314 #include <list>
 315 #include <map>
 316
 317 #include "path/to/header.h"
 318 #include "path/to/z/header.h"
 319
 320 void foo() {
 321   int a = 0;
 322 })";
 323
 324   EXPECT_EQ(PostCode,
 325             runCheckOnCode<NonSystemHeaderInserterCheck>(
 326                 PreCode, "clang_tidy/tests/insert_includes_test_input2.cc"));
 327 }
 328
 329 TEST(IncludeInserterTest, InsertBetweenNonSystemIncludes) {
 330   const char *PreCode = R"(
 331 #include "clang_tidy/tests/insert_includes_test_header.h"
 332
 333 #include <list>
 334 #include <map>
 335
 336 #include "path/to/a/header.h"
 337 #include "path/to/z/header.h"
 338
 339 void foo() {
 340   int a = 0;
 341 })";
 342   const char *PostCode = R"(
 343 #include "clang_tidy/tests/insert_includes_test_header.h"
 344
 345 #include <list>
 346 #include <map>
 347
 348 #include "path/to/a/header.h"
 349 #include "path/to/header.h"
 350 #include "path/to/z/header.h"
 351
 352 void foo() {
 353   int a = 0;
 354 })";
 355
 356   EXPECT_EQ(PostCode,
 357             runCheckOnCode<NonSystemHeaderInserterCheck>(
 358                 PreCode, "clang_tidy/tests/insert_includes_test_input2.cc"));
 359 }
 360
 361 TEST(IncludeInserterTest, NonSystemIncludeAlreadyIncluded) {
 362   const char *PreCode = R"(
 363 #include "clang_tidy/tests/insert_includes_test_header.h"
 364
 365 #include <list>
 366 #include <map>
 367
 368 #include "path/to/a/header.h"
 369 #include "path/to/header.h"
 370 #include "path/to/z/header.h"
 371
 372 void foo() {
 373   int a = 0;
 374 })";
 375   EXPECT_EQ(PreCode,
 376             runCheckOnCode<NonSystemHeaderInserterCheck>(
 377                 PreCode, "clang_tidy/tests/insert_includes_test_input2.cc"));
 378 }
 379
 380 TEST(IncludeInserterTest, InsertNonSystemIncludeAfterLastCXXSystemInclude) {
 381   const char *PreCode = R"(
 382 #include "clang_tidy/tests/insert_includes_test_header.h"
 383
 384 #include <list>
 385 #include <map>
 386
 387 void foo() {
 388   int a = 0;
 389 })";
 390   const char *PostCode = R"(
 391 #include "clang_tidy/tests/insert_includes_test_header.h"
 392
 393 #include <list>
 394 #include <map>
 395
 396 #include "path/to/header.h"
 397
 398 void foo() {
 399   int a = 0;
 400 })";
 401
 402   EXPECT_EQ(PostCode,
 403             runCheckOnCode<NonSystemHeaderInserterCheck>(
 404                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 405 }
 406
 407 TEST(IncludeInserterTest, InsertNonSystemIncludeAfterMainFileInclude) {
 408   const char *PreCode = R"(
 409 #include "clang_tidy/tests/insert_includes_test_header.h"
 410
 411 void foo() {
 412   int a = 0;
 413 })";
 414   const char *PostCode = R"(
 415 #include "clang_tidy/tests/insert_includes_test_header.h"
 416
 417 #include "path/to/header.h"
 418
 419 void foo() {
 420   int a = 0;
 421 })";
 422
 423   EXPECT_EQ(PostCode,
 424             runCheckOnCode<NonSystemHeaderInserterCheck>(
 425                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 426 }
 427
 428 TEST(IncludeInserterTest, InsertCXXSystemIncludeAfterLastCXXSystemInclude) {
 429   const char *PreCode = R"(
 430 #include "clang_tidy/tests/insert_includes_test_header.h"
 431
 432 #include <list>
 433 #include <map>
 434
 435 #include "path/to/a/header.h"
 436
 437 void foo() {
 438   int a = 0;
 439 })";
 440   const char *PostCode = R"(
 441 #include "clang_tidy/tests/insert_includes_test_header.h"
 442
 443 #include <list>
 444 #include <map>
 445 #include <set>
 446
 447 #include "path/to/a/header.h"
 448
 449 void foo() {
 450   int a = 0;
 451 })";
 452
 453   EXPECT_EQ(PostCode,
 454             runCheckOnCode<CXXSystemIncludeInserterCheck>(
 455                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 456 }
 457
 458 TEST(IncludeInserterTest, InsertCXXSystemIncludeBeforeFirstCXXSystemInclude) {
 459   const char *PreCode = R"(
 460 #include "clang_tidy/tests/insert_includes_test_header.h"
 461
 462 #include <vector>
 463
 464 #include "path/to/a/header.h"
 465
 466 void foo() {
 467   int a = 0;
 468 })";
 469   const char *PostCode = R"(
 470 #include "clang_tidy/tests/insert_includes_test_header.h"
 471
 472 #include <set>
 473 #include <vector>
 474
 475 #include "path/to/a/header.h"
 476
 477 void foo() {
 478   int a = 0;
 479 })";
 480
 481   EXPECT_EQ(PostCode,
 482             runCheckOnCode<CXXSystemIncludeInserterCheck>(
 483                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 484 }
 485
 486 TEST(IncludeInserterTest, InsertCXXSystemIncludeBetweenCXXSystemIncludes) {
 487   const char *PreCode = R"(
 488 #include "clang_tidy/tests/insert_includes_test_header.h"
 489
 490 #include <map>
 491 #include <vector>
 492
 493 #include "path/to/a/header.h"
 494
 495 void foo() {
 496   int a = 0;
 497 })";
 498   const char *PostCode = R"(
 499 #include "clang_tidy/tests/insert_includes_test_header.h"
 500
 501 #include <map>
 502 #include <set>
 503 #include <vector>
 504
 505 #include "path/to/a/header.h"
 506
 507 void foo() {
 508   int a = 0;
 509 })";
 510
 511   EXPECT_EQ(PostCode,
 512             runCheckOnCode<CXXSystemIncludeInserterCheck>(
 513                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 514 }
 515
 516 TEST(IncludeInserterTest, InsertCXXSystemIncludeAfterMainFileInclude) {
 517   const char *PreCode = R"(
 518 #include "clang_tidy/tests/insert_includes_test_header.h"
 519
 520 #include "path/to/a/header.h"
 521
 522 void foo() {
 523   int a = 0;
 524 })";
 525   const char *PostCode = R"(
 526 #include "clang_tidy/tests/insert_includes_test_header.h"
 527
 528 #include <set>
 529
 530 #include "path/to/a/header.h"
 531
 532 void foo() {
 533   int a = 0;
 534 })";
 535
 536   EXPECT_EQ(PostCode,
 537             runCheckOnCode<CXXSystemIncludeInserterCheck>(
 538                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 539 }
 540
 541 TEST(IncludeInserterTest, InsertCXXSystemIncludeAfterCSystemInclude) {
 542   const char *PreCode = R"(
 543 #include "clang_tidy/tests/insert_includes_test_header.h"
 544
 545 #include <stdlib.h>
 546
 547 #include "path/to/a/header.h"
 548
 549 void foo() {
 550   int a = 0;
 551 })";
 552   const char *PostCode = R"(
 553 #include "clang_tidy/tests/insert_includes_test_header.h"
 554
 555 #include <stdlib.h>
 556
 557 #include <set>
 558
 559 #include "path/to/a/header.h"
 560
 561 void foo() {
 562   int a = 0;
 563 })";
 564
 565   EXPECT_EQ(PostCode,
 566             runCheckOnCode<CXXSystemIncludeInserterCheck>(
 567                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 568 }
 569
 570 TEST(IncludeInserterTest, InsertCXXSystemIncludeBeforeNonSystemInclude) {
 571   const char *PreCode = R"(
 572 #include "path/to/a/header.h"
 573
 574 void foo() {
 575   int a = 0;
 576 })";
 577   const char *PostCode = R"(
 578 #include <set>
 579
 580 #include "path/to/a/header.h"
 581
 582 void foo() {
 583   int a = 0;
 584 })";
 585
 586   EXPECT_EQ(
 587       PostCode,
 588       runCheckOnCode<CXXSystemIncludeInserterCheck>(
 589           PreCode, "repo/clang_tidy/tests/insert_includes_test_header.cc"));
 590 }
 591
 592 TEST(IncludeInserterTest, InsertCSystemIncludeBeforeCXXSystemInclude) {
 593   const char *PreCode = R"(
 594 #include <set>
 595
 596 #include "path/to/a/header.h"
 597
 598 void foo() {
 599   int a = 0;
 600 })";
 601   const char *PostCode = R"(
 602 #include <stdlib.h>
 603
 604 #include <set>
 605
 606 #include "path/to/a/header.h"
 607
 608 void foo() {
 609   int a = 0;
 610 })";
 611
 612   EXPECT_EQ(
 613       PostCode,
 614       runCheckOnCode<CSystemIncludeInserterCheck>(
 615           PreCode, "repo/clang_tidy/tests/insert_includes_test_header.cc"));
 616 }
 617
 618 TEST(IncludeInserterTest, InsertIncludeIfThereWasNoneBefore) {
 619   const char *PreCode = R"(
 620 void foo() {
 621   int a = 0;
 622 })";
 623   const char *PostCode = R"(#include <set>
 624
 625
 626 void foo() {
 627   int a = 0;
 628 })";
 629
 630   EXPECT_EQ(
 631       PostCode,
 632       runCheckOnCode<CXXSystemIncludeInserterCheck>(
 633           PreCode, "repo/clang_tidy/tests/insert_includes_test_header.cc"));
 634 }
 635
 636 TEST(IncludeInserterTest, DontInsertDuplicateIncludeEvenIfMiscategorized) {
 637   const char *PreCode = R"(
 638 #include "clang_tidy/tests/insert_includes_test_header.h"
 639
 640 #include <map>
 641 #include <set>
 642 #include <vector>
 643
 644 #include "a/header.h"
 645 #include "path/to/a/header.h"
 646 #include "path/to/header.h"
 647
 648 void foo() {
 649   int a = 0;
 650 })";
 651
 652   const char *PostCode = R"(
 653 #include "clang_tidy/tests/insert_includes_test_header.h"
 654
 655 #include <map>
 656 #include <set>
 657 #include <vector>
 658
 659 #include "a/header.h"
 660 #include "path/to/a/header.h"
 661 #include "path/to/header.h"
 662
 663 void foo() {
 664   int a = 0;
 665 })";
 666
 667   EXPECT_EQ(PostCode, runCheckOnCode<EarlyInAlphabetHeaderInserterCheck>(
 668                           PreCode, "workspace_folder/clang_tidy/tests/"
 669                                    "insert_includes_test_header.cc"));
 670 }
 671
 672 TEST(IncludeInserterTest, HandleOrderInSubdirectory) {
 673   const char *PreCode = R"(
 674 #include "clang_tidy/tests/insert_includes_test_header.h"
 675
 676 #include <map>
 677 #include <set>
 678 #include <vector>
 679
 680 #include "path/to/a/header.h"
 681 #include "path/to/header.h"
 682
 683 void foo() {
 684   int a = 0;
 685 })";
 686
 687   const char *PostCode = R"(
 688 #include "clang_tidy/tests/insert_includes_test_header.h"
 689
 690 #include <map>
 691 #include <set>
 692 #include <vector>
 693
 694 #include "a/header.h"
 695 #include "path/to/a/header.h"
 696 #include "path/to/header.h"
 697
 698 void foo() {
 699   int a = 0;
 700 })";
 701
 702   EXPECT_EQ(PostCode, runCheckOnCode<EarlyInAlphabetHeaderInserterCheck>(
 703                           PreCode, "workspace_folder/clang_tidy/tests/"
 704                                    "insert_includes_test_header.cc"));
 705 }
 706
 707 TEST(IncludeInserterTest, InvalidHeaderName) {
 708   const char *PreCode = R"(
 709 #include "clang_tidy/tests/insert_includes_test_header.h"
 710
 711 #include <list>
 712 #include <map>
 713
 714 #include "path/to/a/header.h"
 715
 716 void foo() {
 717   int a = 0;
 718 })";
 719   const char *PostCode = R"(
 720 #include "clang_tidy/tests/insert_includes_test_header.h"
 721
 722 #include <c.h>
 723
 724 #include <d>
 725 #include <list>
 726 #include <map>
 727
 728 #include "a.h"
 729 #include "b.h"
 730 #include "path/to/a/header.h"
 731
 732 void foo() {
 733   int a = 0;
 734 })";
 735
 736   EXPECT_EQ(PostCode,
 737             runCheckOnCode<InvalidIncludeInserterCheck>(
 738                 PreCode, "clang_tidy/tests/insert_includes_test_header.cc"));
 739 }
 740
 741 TEST(IncludeInserterTest, InsertHeaderObjectiveC) {
 742   const char *PreCode = R"(
 743 #import "clang_tidy/tests/insert_includes_test_header.h"
 744
 745 void foo() {
 746   int a = 0;
 747 })";
 748   const char *PostCode = R"(
 749 #import "clang_tidy/tests/insert_includes_test_header.h"
 750
 751 #import "a/header.h"
 752
 753 void foo() {
 754   int a = 0;
 755 })";
 756
 757   EXPECT_EQ(
 758       PostCode,
 759       runCheckOnCode<ObjCEarlyInAlphabetHeaderInserterCheck>(
 760           PreCode, "repo/clang_tidy/tests/insert_includes_test_header.mm"));
 761 }
 762
 763 TEST(IncludeInserterTest, InsertCategoryHeaderObjectiveC) {
 764   const char *PreCode = R"(
 765 #import "top_level_test_header.h"
 766
 767 void foo() {
 768   int a = 0;
 769 })";
 770   const char *PostCode = R"(
 771 #import "top_level_test_header.h"
 772 #import "top_level_test_header+foo.h"
 773
 774 void foo() {
 775   int a = 0;
 776 })";
 777
 778   EXPECT_EQ(PostCode, runCheckOnCode<ObjCCategoryHeaderInserterCheck>(
 779                           PreCode, "top_level_test_header.mm"));
 780 }
 781
 782 TEST(IncludeInserterTest, InsertGeneratedHeaderObjectiveC) {
 783   const char *PreCode = R"(
 784 #import "clang_tidy/tests/insert_includes_test_header.h"
 785
 786 #include <list>
 787 #include <map>
 788
 789 #include "path/to/a/header.h"
 790
 791 void foo() {
 792   int a = 0;
 793 })";
 794   const char *PostCode = R"(
 795 #import "clang_tidy/tests/insert_includes_test_header.h"
 796
 797 #include <list>
 798 #include <map>
 799
 800 #include "path/to/a/header.h"
 801
 802 #import "clang_tidy/tests/generated_file.proto.h"
 803
 804 void foo() {
 805   int a = 0;
 806 })";
 807
 808   EXPECT_EQ(
 809       PostCode,
 810       runCheckOnCode<ObjCGeneratedHeaderInserterCheck>(
 811           PreCode, "repo/clang_tidy/tests/insert_includes_test_header.mm"));
 812 }
 813
 814 } // anonymous namespace
 815 } // namespace tidy
 816 } // namespace clang
 817
 818 #endif