unittests/TextAPI/TextStubV2Tests.cpp

   1 //===-- TextStubV2Tests.cpp - TBD V2 File Test ----------------------------===//
   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 "llvm/TextAPI/MachO/InterfaceFile.h"
  10 #include "llvm/TextAPI/MachO/TextAPIReader.h"
  11 #include "llvm/TextAPI/MachO/TextAPIWriter.h"
  12 #include "gtest/gtest.h"
  13 #include <string>
  14 #include <vector>
  15
  16 using namespace llvm;
  17 using namespace llvm::MachO;
  18
  19 struct ExportedSymbol {
  20   SymbolKind Kind;
  21   std::string Name;
  22   bool WeakDefined;
  23   bool ThreadLocalValue;
  24 };
  25 using ExportedSymbolSeq = std::vector<ExportedSymbol>;
  26
  27 inline bool operator<(const ExportedSymbol &lhs, const ExportedSymbol &rhs) {
  28   return std::tie(lhs.Kind, lhs.Name) < std::tie(rhs.Kind, rhs.Name);
  29 }
  30
  31 inline bool operator==(const ExportedSymbol &lhs, const ExportedSymbol &rhs) {
  32   return std::tie(lhs.Kind, lhs.Name, lhs.WeakDefined, lhs.ThreadLocalValue) ==
  33          std::tie(rhs.Kind, rhs.Name, rhs.WeakDefined, rhs.ThreadLocalValue);
  34 }
  35
  36 static ExportedSymbol TBDv2Symbols[] = {
  37     {SymbolKind::GlobalSymbol, "$ld$hide$os9.0$_sym1", false, false},
  38     {SymbolKind::GlobalSymbol, "_sym1", false, false},
  39     {SymbolKind::GlobalSymbol, "_sym2", false, false},
  40     {SymbolKind::GlobalSymbol, "_sym3", false, false},
  41     {SymbolKind::GlobalSymbol, "_sym4", false, false},
  42     {SymbolKind::GlobalSymbol, "_sym5", false, false},
  43     {SymbolKind::GlobalSymbol, "_tlv1", false, true},
  44     {SymbolKind::GlobalSymbol, "_tlv2", false, true},
  45     {SymbolKind::GlobalSymbol, "_tlv3", false, true},
  46     {SymbolKind::GlobalSymbol, "_weak1", true, false},
  47     {SymbolKind::GlobalSymbol, "_weak2", true, false},
  48     {SymbolKind::GlobalSymbol, "_weak3", true, false},
  49     {SymbolKind::ObjectiveCClass, "class1", false, false},
  50     {SymbolKind::ObjectiveCClass, "class2", false, false},
  51     {SymbolKind::ObjectiveCClass, "class3", false, false},
  52     {SymbolKind::ObjectiveCInstanceVariable, "class1._ivar1", false, false},
  53     {SymbolKind::ObjectiveCInstanceVariable, "class1._ivar2", false, false},
  54     {SymbolKind::ObjectiveCInstanceVariable, "class1._ivar3", false, false},
  55 };
  56
  57 namespace TBDv2 {
  58
  59 TEST(TBDv2, ReadFile) {
  60   static const char tbd_v2_file1[] =
  61       "--- !tapi-tbd-v2\n"
  62       "archs: [ armv7, armv7s, armv7k, arm64 ]\n"
  63       "platform: ios\n"
  64       "flags: [ installapi ]\n"
  65       "install-name: Test.dylib\n"
  66       "current-version: 2.3.4\n"
  67       "compatibility-version: 1.0\n"
  68       "swift-version: 1.1\n"
  69       "parent-umbrella: Umbrella.dylib\n"
  70       "exports:\n"
  71       "  - archs: [ armv7, armv7s, armv7k, arm64 ]\n"
  72       "    allowable-clients: [ clientA ]\n"
  73       "    re-exports: [ /usr/lib/libfoo.dylib ]\n"
  74       "    symbols: [ _sym1, _sym2, _sym3, _sym4, $ld$hide$os9.0$_sym1 ]\n"
  75       "    objc-classes: [ _class1, _class2 ]\n"
  76       "    objc-ivars: [ _class1._ivar1, _class1._ivar2 ]\n"
  77       "    weak-def-symbols: [ _weak1, _weak2 ]\n"
  78       "    thread-local-symbols: [ _tlv1, _tlv2 ]\n"
  79       "  - archs: [ armv7, armv7s, armv7k ]\n"
  80       "    symbols: [ _sym5 ]\n"
  81       "    objc-classes: [ _class3 ]\n"
  82       "    objc-ivars: [ _class1._ivar3 ]\n"
  83       "    weak-def-symbols: [ _weak3 ]\n"
  84       "    thread-local-symbols: [ _tlv3 ]\n"
  85       "...\n";
  86
  87   auto Result = TextAPIReader::get(MemoryBufferRef(tbd_v2_file1, "Test.tbd"));
  88   EXPECT_TRUE(!!Result);
  89   auto File = std::move(Result.get());
  90   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
  91   auto Archs = AK_armv7 | AK_armv7s | AK_armv7k | AK_arm64;
  92   EXPECT_EQ(Archs, File->getArchitectures());
  93   EXPECT_EQ(PlatformKind::iOS, File->getPlatform());
  94   EXPECT_EQ(std::string("Test.dylib"), File->getInstallName());
  95   EXPECT_EQ(PackedVersion(2, 3, 4), File->getCurrentVersion());
  96   EXPECT_EQ(PackedVersion(1, 0, 0), File->getCompatibilityVersion());
  97   EXPECT_EQ(2U, File->getSwiftABIVersion());
  98   EXPECT_EQ(ObjCConstraintType::Retain_Release, File->getObjCConstraint());
  99   EXPECT_TRUE(File->isTwoLevelNamespace());
 100   EXPECT_TRUE(File->isApplicationExtensionSafe());
 101   EXPECT_TRUE(File->isInstallAPI());
 102   InterfaceFileRef client("clientA", Archs);
 103   InterfaceFileRef reexport("/usr/lib/libfoo.dylib", Archs);
 104   EXPECT_EQ(1U, File->allowableClients().size());
 105   EXPECT_EQ(client, File->allowableClients().front());
 106   EXPECT_EQ(1U, File->reexportedLibraries().size());
 107   EXPECT_EQ(reexport, File->reexportedLibraries().front());
 108
 109   ExportedSymbolSeq Exports;
 110   for (const auto *Sym : File->symbols()) {
 111     EXPECT_FALSE(Sym->isWeakReferenced());
 112     EXPECT_FALSE(Sym->isUndefined());
 113     Exports.emplace_back(ExportedSymbol{Sym->getKind(), Sym->getName(),
 114                                         Sym->isWeakDefined(),
 115                                         Sym->isThreadLocalValue()});
 116   }
 117   llvm::sort(Exports.begin(), Exports.end());
 118
 119   EXPECT_EQ(sizeof(TBDv2Symbols) / sizeof(ExportedSymbol), Exports.size());
 120   EXPECT_TRUE(
 121       std::equal(Exports.begin(), Exports.end(), std::begin(TBDv2Symbols)));
 122 }
 123
 124 TEST(TBDv2, ReadFile2) {
 125   static const char tbd_v2_file2[] =
 126       "--- !tapi-tbd-v2\n"
 127       "archs: [ armv7, armv7s, armv7k, arm64 ]\n"
 128       "platform: ios\n"
 129       "flags: [ flat_namespace, not_app_extension_safe ]\n"
 130       "install-name: Test.dylib\n"
 131       "swift-version: 1.1\n"
 132       "exports:\n"
 133       "  - archs: [ armv7, armv7s, armv7k, arm64 ]\n"
 134       "    symbols: [ _sym1, _sym2, _sym3, _sym4, $ld$hide$os9.0$_sym1 ]\n"
 135       "    objc-classes: [ _class1, _class2 ]\n"
 136       "    objc-ivars: [ _class1._ivar1, _class1._ivar2 ]\n"
 137       "    weak-def-symbols: [ _weak1, _weak2 ]\n"
 138       "    thread-local-symbols: [ _tlv1, _tlv2 ]\n"
 139       "  - archs: [ armv7, armv7s, armv7k ]\n"
 140       "    symbols: [ _sym5 ]\n"
 141       "    objc-classes: [ _class3 ]\n"
 142       "    objc-ivars: [ _class1._ivar3 ]\n"
 143       "    weak-def-symbols: [ _weak3 ]\n"
 144       "    thread-local-symbols: [ _tlv3 ]\n"
 145       "undefineds:\n"
 146       "  - archs: [ armv7, armv7s, armv7k, arm64 ]\n"
 147       "    symbols: [ _undefSym1, _undefSym2, _undefSym3 ]\n"
 148       "    objc-classes: [ _undefClass1, _undefClass2 ]\n"
 149       "    objc-ivars: [ _undefClass1._ivar1, _undefClass1._ivar2 ]\n"
 150       "    weak-ref-symbols: [ _undefWeak1, _undefWeak2 ]\n"
 151       "...\n";
 152
 153   auto Result = TextAPIReader::get(MemoryBufferRef(tbd_v2_file2, "Test.tbd"));
 154   EXPECT_TRUE(!!Result);
 155   auto File = std::move(Result.get());
 156   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 157   auto Archs = AK_armv7 | AK_armv7s | AK_armv7k | AK_arm64;
 158   EXPECT_EQ(Archs, File->getArchitectures());
 159   EXPECT_EQ(PlatformKind::iOS, File->getPlatform());
 160   EXPECT_EQ(std::string("Test.dylib"), File->getInstallName());
 161   EXPECT_EQ(PackedVersion(1, 0, 0), File->getCurrentVersion());
 162   EXPECT_EQ(PackedVersion(1, 0, 0), File->getCompatibilityVersion());
 163   EXPECT_EQ(2U, File->getSwiftABIVersion());
 164   EXPECT_EQ(ObjCConstraintType::Retain_Release, File->getObjCConstraint());
 165   EXPECT_FALSE(File->isTwoLevelNamespace());
 166   EXPECT_FALSE(File->isApplicationExtensionSafe());
 167   EXPECT_FALSE(File->isInstallAPI());
 168   EXPECT_EQ(0U, File->allowableClients().size());
 169   EXPECT_EQ(0U, File->reexportedLibraries().size());
 170 }
 171
 172 TEST(TBDv2, WriteFile) {
 173   static const char tbd_v2_file3[] =
 174       "--- !tapi-tbd-v2\n"
 175       "archs:           [ i386, x86_64 ]\n"
 176       "platform:        macosx\n"
 177       "install-name:    '/usr/lib/libfoo.dylib'\n"
 178       "current-version: 1.2.3\n"
 179       "compatibility-version: 0\n"
 180       "swift-version:   5\n"
 181       "exports:\n"
 182       "  - archs:           [ i386 ]\n"
 183       "    symbols:         [ _sym1 ]\n"
 184       "    weak-def-symbols: [ _sym2 ]\n"
 185       "    thread-local-symbols: [ _sym3 ]\n"
 186       "  - archs:           [ x86_64 ]\n"
 187       "    allowable-clients: [ clientA ]\n"
 188       "    re-exports:      [ '/usr/lib/libfoo.dylib' ]\n"
 189       "    symbols:         [ '_OBJC_EHTYPE_$_Class1' ]\n"
 190       "    objc-classes:    [ _Class1 ]\n"
 191       "    objc-ivars:      [ _Class1._ivar1 ]\n"
 192       "...\n";
 193
 194   InterfaceFile File;
 195   File.setPath("libfoo.dylib");
 196   File.setInstallName("/usr/lib/libfoo.dylib");
 197   File.setFileType(FileType::TBD_V2);
 198   File.setArchitectures(AK_i386 | AK_x86_64);
 199   File.setPlatform(PlatformKind::macOS);
 200   File.setCurrentVersion(PackedVersion(1, 2, 3));
 201   File.setTwoLevelNamespace();
 202   File.setApplicationExtensionSafe();
 203   File.setSwiftABIVersion(5);
 204   File.setObjCConstraint(ObjCConstraintType::Retain_Release);
 205   File.addAllowableClient("clientA", AK_x86_64);
 206   File.addReexportedLibrary("/usr/lib/libfoo.dylib", AK_x86_64);
 207   File.addSymbol(SymbolKind::GlobalSymbol, "_sym1", AK_i386);
 208   File.addSymbol(SymbolKind::GlobalSymbol, "_sym2", AK_i386,
 209                  SymbolFlags::WeakDefined);
 210   File.addSymbol(SymbolKind::GlobalSymbol, "_sym3", AK_i386,
 211                  SymbolFlags::ThreadLocalValue);
 212   File.addSymbol(SymbolKind::ObjectiveCClass, "Class1", AK_x86_64);
 213   File.addSymbol(SymbolKind::ObjectiveCClassEHType, "Class1", AK_x86_64);
 214   File.addSymbol(SymbolKind::ObjectiveCInstanceVariable, "Class1._ivar1",
 215                  AK_x86_64);
 216
 217   SmallString<4096> Buffer;
 218   raw_svector_ostream OS(Buffer);
 219   auto Result = TextAPIWriter::writeToStream(OS, File);
 220   EXPECT_FALSE(Result);
 221   EXPECT_STREQ(tbd_v2_file3, Buffer.c_str());
 222 }
 223
 224 TEST(TBDv2, Platform_macOS) {
 225   static const char tbd_v1_platform_macos[] = "--- !tapi-tbd-v2\n"
 226                                               "archs: [ x86_64 ]\n"
 227                                               "platform: macosx\n"
 228                                               "install-name: Test.dylib\n"
 229                                               "...\n";
 230
 231   auto Result =
 232       TextAPIReader::get(MemoryBufferRef(tbd_v1_platform_macos, "Test.tbd"));
 233   EXPECT_TRUE(!!Result);
 234   auto File = std::move(Result.get());
 235   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 236   EXPECT_EQ(PlatformKind::macOS, File->getPlatform());
 237 }
 238
 239 TEST(TBDv2, Platform_iOS) {
 240   static const char tbd_v1_platform_ios[] = "--- !tapi-tbd-v2\n"
 241                                             "archs: [ arm64 ]\n"
 242                                             "platform: ios\n"
 243                                             "install-name: Test.dylib\n"
 244                                             "...\n";
 245
 246   auto Result =
 247       TextAPIReader::get(MemoryBufferRef(tbd_v1_platform_ios, "Test.tbd"));
 248   EXPECT_TRUE(!!Result);
 249   auto File = std::move(Result.get());
 250   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 251   EXPECT_EQ(PlatformKind::iOS, File->getPlatform());
 252 }
 253
 254 TEST(TBDv2, Platform_watchOS) {
 255   static const char tbd_v1_platform_watchos[] = "--- !tapi-tbd-v2\n"
 256                                                 "archs: [ armv7k ]\n"
 257                                                 "platform: watchos\n"
 258                                                 "install-name: Test.dylib\n"
 259                                                 "...\n";
 260
 261   auto Result =
 262       TextAPIReader::get(MemoryBufferRef(tbd_v1_platform_watchos, "Test.tbd"));
 263   EXPECT_TRUE(!!Result);
 264   auto File = std::move(Result.get());
 265   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 266   EXPECT_EQ(PlatformKind::watchOS, File->getPlatform());
 267 }
 268
 269 TEST(TBDv2, Platform_tvOS) {
 270   static const char tbd_v1_platform_tvos[] = "--- !tapi-tbd-v2\n"
 271                                              "archs: [ arm64 ]\n"
 272                                              "platform: tvos\n"
 273                                              "install-name: Test.dylib\n"
 274                                              "...\n";
 275
 276   auto Result =
 277       TextAPIReader::get(MemoryBufferRef(tbd_v1_platform_tvos, "Test.tbd"));
 278   EXPECT_TRUE(!!Result);
 279   auto File = std::move(Result.get());
 280   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 281   EXPECT_EQ(PlatformKind::tvOS, File->getPlatform());
 282 }
 283
 284 TEST(TBDv2, Platform_bridgeOS) {
 285   static const char tbd_v1_platform_bridgeos[] = "--- !tapi-tbd-v2\n"
 286                                                  "archs: [ armv7k ]\n"
 287                                                  "platform: bridgeos\n"
 288                                                  "install-name: Test.dylib\n"
 289                                                  "...\n";
 290
 291   auto Result =
 292       TextAPIReader::get(MemoryBufferRef(tbd_v1_platform_bridgeos, "Test.tbd"));
 293   EXPECT_TRUE(!!Result);
 294   auto File = std::move(Result.get());
 295   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 296   EXPECT_EQ(PlatformKind::bridgeOS, File->getPlatform());
 297 }
 298
 299 TEST(TBDv2, Swift_1_0) {
 300   static const char tbd_v1_swift_1_0[] = "--- !tapi-tbd-v2\n"
 301                                          "archs: [ arm64 ]\n"
 302                                          "platform: ios\n"
 303                                          "install-name: Test.dylib\n"
 304                                          "swift-version: 1.0\n"
 305                                          "...\n";
 306
 307   auto Result =
 308       TextAPIReader::get(MemoryBufferRef(tbd_v1_swift_1_0, "Test.tbd"));
 309   EXPECT_TRUE(!!Result);
 310   auto File = std::move(Result.get());
 311   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 312   EXPECT_EQ(1U, File->getSwiftABIVersion());
 313 }
 314
 315 TEST(TBDv2, Swift_1_1) {
 316   static const char tbd_v1_swift_1_1[] = "--- !tapi-tbd-v2\n"
 317                                          "archs: [ arm64 ]\n"
 318                                          "platform: ios\n"
 319                                          "install-name: Test.dylib\n"
 320                                          "swift-version: 1.1\n"
 321                                          "...\n";
 322
 323   auto Result =
 324       TextAPIReader::get(MemoryBufferRef(tbd_v1_swift_1_1, "Test.tbd"));
 325   EXPECT_TRUE(!!Result);
 326   auto File = std::move(Result.get());
 327   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 328   EXPECT_EQ(2U, File->getSwiftABIVersion());
 329 }
 330
 331 TEST(TBDv2, Swift_2_0) {
 332   static const char tbd_v1_swift_2_0[] = "--- !tapi-tbd-v2\n"
 333                                          "archs: [ arm64 ]\n"
 334                                          "platform: ios\n"
 335                                          "install-name: Test.dylib\n"
 336                                          "swift-version: 2.0\n"
 337                                          "...\n";
 338
 339   auto Result =
 340       TextAPIReader::get(MemoryBufferRef(tbd_v1_swift_2_0, "Test.tbd"));
 341   EXPECT_TRUE(!!Result);
 342   auto File = std::move(Result.get());
 343   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 344   EXPECT_EQ(3U, File->getSwiftABIVersion());
 345 }
 346
 347 TEST(TBDv2, Swift_3_0) {
 348   static const char tbd_v1_swift_3_0[] = "--- !tapi-tbd-v2\n"
 349                                          "archs: [ arm64 ]\n"
 350                                          "platform: ios\n"
 351                                          "install-name: Test.dylib\n"
 352                                          "swift-version: 3.0\n"
 353                                          "...\n";
 354
 355   auto Result =
 356       TextAPIReader::get(MemoryBufferRef(tbd_v1_swift_3_0, "Test.tbd"));
 357   EXPECT_TRUE(!!Result);
 358   auto File = std::move(Result.get());
 359   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 360   EXPECT_EQ(4U, File->getSwiftABIVersion());
 361 }
 362
 363 TEST(TBDv2, Swift_4_0) {
 364   static const char tbd_v1_swift_4_0[] = "--- !tapi-tbd-v2\n"
 365                                          "archs: [ arm64 ]\n"
 366                                          "platform: ios\n"
 367                                          "install-name: Test.dylib\n"
 368                                          "swift-version: 4.0\n"
 369                                          "...\n";
 370
 371   auto Result =
 372       TextAPIReader::get(MemoryBufferRef(tbd_v1_swift_4_0, "Test.tbd"));
 373   EXPECT_FALSE(!!Result);
 374   auto errorMessage = toString(Result.takeError());
 375   EXPECT_EQ("malformed file\nTest.tbd:5:16: error: invalid Swift ABI "
 376             "version.\nswift-version: 4.0\n               ^~~\n",
 377             errorMessage);
 378 }
 379
 380 TEST(TBDv2, Swift_5) {
 381   static const char tbd_v1_swift_5[] = "--- !tapi-tbd-v2\n"
 382                                        "archs: [ arm64 ]\n"
 383                                        "platform: ios\n"
 384                                        "install-name: Test.dylib\n"
 385                                        "swift-version: 5\n"
 386                                        "...\n";
 387
 388   auto Result = TextAPIReader::get(MemoryBufferRef(tbd_v1_swift_5, "Test.tbd"));
 389   EXPECT_TRUE(!!Result);
 390   auto File = std::move(Result.get());
 391   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 392   EXPECT_EQ(5U, File->getSwiftABIVersion());
 393 }
 394
 395 TEST(TBDv2, Swift_99) {
 396   static const char tbd_v1_swift_99[] = "--- !tapi-tbd-v2\n"
 397                                         "archs: [ arm64 ]\n"
 398                                         "platform: ios\n"
 399                                         "install-name: Test.dylib\n"
 400                                         "swift-version: 99\n"
 401                                         "...\n";
 402
 403   auto Result =
 404       TextAPIReader::get(MemoryBufferRef(tbd_v1_swift_99, "Test.tbd"));
 405   EXPECT_TRUE(!!Result);
 406   auto File = std::move(Result.get());
 407   EXPECT_EQ(FileType::TBD_V2, File->getFileType());
 408   EXPECT_EQ(99U, File->getSwiftABIVersion());
 409 }
 410
 411 TEST(TBDv2, UnknownArchitecture) {
 412   static const char tbd_v2_file_unknown_architecture[] =
 413       "--- !tapi-tbd-v2\n"
 414       "archs: [ foo ]\n"
 415       "platform: macosx\n"
 416       "install-name: Test.dylib\n"
 417       "...\n";
 418
 419   auto Result = TextAPIReader::get(
 420       MemoryBufferRef(tbd_v2_file_unknown_architecture, "Test.tbd"));
 421   EXPECT_TRUE(!!Result);
 422 }
 423
 424 TEST(TBDv2, UnknownPlatform) {
 425   static const char tbd_v2_file_unknown_platform[] = "--- !tapi-tbd-v2\n"
 426                                                      "archs: [ i386 ]\n"
 427                                                      "platform: newOS\n"
 428                                                      "...\n";
 429
 430   auto Result = TextAPIReader::get(
 431       MemoryBufferRef(tbd_v2_file_unknown_platform, "Test.tbd"));
 432   EXPECT_FALSE(!!Result);
 433   auto errorMessage = toString(Result.takeError());
 434   EXPECT_EQ("malformed file\nTest.tbd:3:11: error: unknown platform\nplatform: "
 435             "newOS\n          ^~~~~\n",
 436             errorMessage);
 437 }
 438
 439 TEST(TBDv2, MalformedFile1) {
 440   static const char malformed_file1[] = "--- !tapi-tbd-v2\n"
 441                                         "archs: [ arm64 ]\n"
 442                                         "foobar: \"Unsupported key\"\n"
 443                                         "...\n";
 444
 445   auto Result =
 446       TextAPIReader::get(MemoryBufferRef(malformed_file1, "Test.tbd"));
 447   EXPECT_FALSE(!!Result);
 448   auto errorMessage = toString(Result.takeError());
 449   ASSERT_EQ("malformed file\nTest.tbd:2:1: error: missing required key "
 450             "'platform'\narchs: [ arm64 ]\n^\n",
 451             errorMessage);
 452 }
 453
 454 TEST(TBDv2, MalformedFile2) {
 455   static const char malformed_file2[] = "--- !tapi-tbd-v2\n"
 456                                         "archs: [ arm64 ]\n"
 457                                         "platform: ios\n"
 458                                         "install-name: Test.dylib\n"
 459                                         "foobar: \"Unsupported key\"\n"
 460                                         "...\n";
 461
 462   auto Result =
 463       TextAPIReader::get(MemoryBufferRef(malformed_file2, "Test.tbd"));
 464   EXPECT_FALSE(!!Result);
 465   auto errorMessage = toString(Result.takeError());
 466   ASSERT_EQ(
 467       "malformed file\nTest.tbd:5:9: error: unknown key 'foobar'\nfoobar: "
 468       "\"Unsupported key\"\n        ^~~~~~~~~~~~~~~~~\n",
 469       errorMessage);
 470 }
 471
 472 } // namespace TBDv2