[TextAPI] Fix & Add tests for tbd files version 3.

[cishida]

Summary

• There was a simple typo in TextStub code that prevented version 3 files to be read.
• Included a version 3 unit test to handle the differences in the format.
• Also a typo in Error.h inside the comments.

[ributzka]

Hi Cyndy, thanks for catching this copy-past-o bug. LGTM

llvm/unittests/TextAPI/TextStubV3Tests.cpp

134

I think this test should work now on windows,

[cishida]

llvm/unittests/TextAPI/TextStubV3Tests.cpp

134

Would removing that macro from all the text stub tests and running them be enough to verify it works on windows?

[cishida]

• [TextAPI] Remove windows guard from tests

[cishida]

I currently don't have commit access rights to push this patch. Can you commit this change for me while I request access?

llvm/unittests/TextAPI/TextStubV3Tests.cpp

134

resolved with r357759

[ributzka]

Sure, np

llvm/include/llvm/Support/Error.h

#endif
   /// Check that this Expected<T> is an error of type ErrT.
   template <typename ErrT> bool errorIsA() const {
     return HasError && (*getErrorStorage())->template isA<ErrT>();
   }
 
   /// Take ownership of the stored error.
   /// After calling this the Expected<T> is in an indeterminate state that can
   /// only be safely destructed. No further calls (beside the destructor) should
-  /// be made on the Expected<T> vaule.
+  /// be made on the Expected<T> value.
   Error takeError() {
 #if LLVM_ENABLE_ABI_BREAKING_CHECKS
     Unchecked = false;
 #endif
     return HasError ? Error(std::move(*getErrorStorage())) : Error::success();
   }
 
   /// Returns a pointer to the stored T value.

llvm/lib/TextAPI/MachO/TextStub.cpp

static void mapping(IO &IO, const InterfaceFile *&File) {
     auto *Ctx = reinterpret_cast<TextAPIContext *>(IO.getContext());
     assert((!Ctx || !IO.outputting() ||
             (Ctx && Ctx->FileKind != FileType::Invalid)) &&
            "File type is not set in YAML context");
     MappingNormalization<NormalizedTBD, const InterfaceFile *> Keys(IO, File);
 
     // prope file type when reading.
     if (!IO.outputting()) {
-      if (IO.mapTag("!tapi-tbd-v2", false))
-        Ctx->FileKind = FileType::TBD_V2;
-      else if (IO.mapTag("!tapi-tbd-v3", false))
+      if (IO.mapTag("!tapi-tbd-v3", false))
+        Ctx->FileKind = FileType::TBD_V3;
+      else if (IO.mapTag("!tapi-tbd-v2", false))
         Ctx->FileKind = FileType::TBD_V2;
       else if (IO.mapTag("!tapi-tbd-v1", false) ||
                IO.mapTag("tag:yaml.org,2002:map", false))
         Ctx->FileKind = FileType::TBD_V1;
       else {
         IO.setError("unsupported file type");
         return;
       }
     }
 
-    // Set file tyoe when writing.
+    // Set file type when writing.
     if (IO.outputting()) {
       switch (Ctx->FileKind) {
       default:
         llvm_unreachable("unexpected file type");
       case FileType::TBD_V1:
         // Don't write the tag into the .tbd file for TBD v1.
         break;
       case FileType::TBD_V2:

llvm/unittests/TextAPI/CMakeLists.txt

 set(LLVM_LINK_COMPONENTS
   TextAPI
 )
 
 add_llvm_unittest(TextAPITests
   ELFYAMLTest.cpp
   TextStubV1Tests.cpp
   TextStubV2Tests.cpp
+  TextStubV3Tests.cpp
 )
 
-target_link_libraries(TextAPITests PRIVATE LLVMTestingSupport)
+target_link_libraries(TextAPITests PRIVATE LLVMTestingSupport)
 

llvm/unittests/TextAPI/TextStubV3Tests.cpp

+//===-- TextStubV3Tests.cpp - TBD V3 File Test ----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v3.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===-----------------------------------------------------------------------===/
+
+#include "llvm/TextAPI/MachO/InterfaceFile.h"
+#include "llvm/TextAPI/MachO/TextAPIReader.h"
+#include "llvm/TextAPI/MachO/TextAPIWriter.h"
+#include "gtest/gtest.h"
+#include <string>
+#include <vector>
+
+using namespace llvm;
+using namespace llvm::MachO;
+
+struct ExportedSymbol {
+  SymbolKind Kind;
+  std::string Name;
+  bool WeakDefined;
+  bool ThreadLocalValue;
+};
+using ExportedSymbolSeq = std::vector<ExportedSymbol>;
+using UUIDs = std::vector<std::pair<Architecture, std::string>>;
+
+inline bool operator<(const ExportedSymbol &lhs, const ExportedSymbol &rhs) {
+  return std::tie(lhs.Kind, lhs.Name) < std::tie(rhs.Kind, rhs.Name);
+}
+
+inline bool operator==(const ExportedSymbol &lhs, const ExportedSymbol &rhs) {
+  return std::tie(lhs.Kind, lhs.Name, lhs.WeakDefined, lhs.ThreadLocalValue) ==
+         std::tie(rhs.Kind, rhs.Name, rhs.WeakDefined, rhs.ThreadLocalValue);
+}
+
+static ExportedSymbol TBDv3Symbols[] = {
+    {SymbolKind::GlobalSymbol, "$ld$hide$os9.0$_sym1", false, false},
+    {SymbolKind::GlobalSymbol, "_sym1", false, false},
+    {SymbolKind::GlobalSymbol, "_sym2", false, false},
+    {SymbolKind::GlobalSymbol, "_sym3", false, false},
+    {SymbolKind::GlobalSymbol, "_sym4", false, false},
+    {SymbolKind::GlobalSymbol, "_sym5", false, false},
+    {SymbolKind::GlobalSymbol, "_tlv1", false, true},
+    {SymbolKind::GlobalSymbol, "_tlv3", false, true},
+    {SymbolKind::GlobalSymbol, "_weak1", true, false},
+    {SymbolKind::GlobalSymbol, "_weak2", true, false},
+    {SymbolKind::GlobalSymbol, "_weak3", true, false},
+    {SymbolKind::ObjectiveCClass, "class1", false, false},
+    {SymbolKind::ObjectiveCClass, "class2", false, false},
+    {SymbolKind::ObjectiveCClass, "class3", false, false},
+    {SymbolKind::ObjectiveCClassEHType, "class1", false, false},
+    {SymbolKind::ObjectiveCInstanceVariable, "class1._ivar1", false, false},
+    {SymbolKind::ObjectiveCInstanceVariable, "class1._ivar2", false, false},
+    {SymbolKind::ObjectiveCInstanceVariable, "class1._ivar3", false, false},
+};
+
+namespace TBDv3 {
+
+TEST(TBDv3, ReadFile) {
+  static const char tbd_v3_file1[] =
+      "--- !tapi-tbd-v3\n"
+      "archs: [ armv7, arm64 ]\n"
+      "uuids: [ 'armv7: 00000000-0000-0000-0000-000000000000',\n"
+      "         'arm64: 11111111-1111-1111-1111-111111111111']\n"
+      "platform: ios\n"
+      "flags: [ installapi ]\n"
+      "install-name: Test.dylib\n"
+      "current-version: 2.3.4\n"
+      "compatibility-version: 1.0\n"
+      "swift-abi-version: 1.1\n"
+      "parent-umbrella: Umbrella.dylib\n"
+      "exports:\n"
+      "  - archs: [ armv7, arm64 ]\n"
+      "    allowable-clients: [ clientA ]\n"
+      "    re-exports: [ /usr/lib/libfoo.dylib ]\n"
+      "    symbols: [ _sym1, _sym2, _sym3, _sym4, $ld$hide$os9.0$_sym1 ]\n"
+      "    objc-classes: [ class1, class2 ]\n"
+      "    objc-eh-types: [ class1 ]\n"
+      "    objc-ivars: [ class1._ivar1, class1._ivar2 ]\n"
+      "    weak-def-symbols: [ _weak1, _weak2 ]\n"
+      "    thread-local-symbols: [ _tlv1, _tlv3 ]\n"
+      "  - archs: [ armv7 ]\n"
+      "    symbols: [ _sym5 ]\n"
+      "    objc-classes: [ class3 ]\n"
+      "    objc-ivars: [ class1._ivar3 ]\n"
+      "    weak-def-symbols: [ _weak3 ]\n"
+      "    thread-local-symbols: [ _tlv3 ]\n"
+      "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v3_file1, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  auto Archs = AK_armv7 | AK_arm64;
+  EXPECT_EQ(Archs, File->getArchitectures());
+  UUIDs uuids = {{AK_armv7, "00000000-0000-0000-0000-000000000000"},
+                 {AK_arm64, "11111111-1111-1111-1111-111111111111"}};
+  EXPECT_EQ(uuids, File->uuids());
+  EXPECT_EQ(PlatformKind::iOS, File->getPlatform());
+  EXPECT_EQ(std::string("Test.dylib"), File->getInstallName());
+  EXPECT_EQ(PackedVersion(2, 3, 4), File->getCurrentVersion());
+  EXPECT_EQ(PackedVersion(1, 0, 0), File->getCompatibilityVersion());
+  EXPECT_EQ(2U, File->getSwiftABIVersion());
+  EXPECT_EQ(ObjCConstraintType::Retain_Release, File->getObjCConstraint());
+  EXPECT_TRUE(File->isTwoLevelNamespace());
+  EXPECT_TRUE(File->isApplicationExtensionSafe());
+  EXPECT_TRUE(File->isInstallAPI());
+  InterfaceFileRef client("clientA", Archs);
+  InterfaceFileRef reexport("/usr/lib/libfoo.dylib", Archs);
+  EXPECT_EQ(1U, File->allowableClients().size());
+  EXPECT_EQ(client, File->allowableClients().front());
+  EXPECT_EQ(1U, File->reexportedLibraries().size());
+  EXPECT_EQ(reexport, File->reexportedLibraries().front());
+
+  ExportedSymbolSeq Exports;
+  for (const auto *Sym : File->symbols()) {
+    EXPECT_FALSE(Sym->isWeakReferenced());
+    EXPECT_FALSE(Sym->isUndefined());
+    Exports.emplace_back(ExportedSymbol{Sym->getKind(), Sym->getName(),
+                                        Sym->isWeakDefined(),
+                                        Sym->isThreadLocalValue()});
+  }
+  llvm::sort(Exports.begin(), Exports.end());
+
+  EXPECT_EQ(sizeof(TBDv3Symbols) / sizeof(ExportedSymbol), Exports.size());
+  EXPECT_TRUE(
+      std::equal(Exports.begin(), Exports.end(), std::begin(TBDv3Symbols)));
+}
+
+TEST(TBDv3, WriteFile) {
+  static const char tbd_v3_file3[] =
+      "--- !tapi-tbd-v3\n"
+      "archs:           [ i386, x86_64 ]\n"
+      "platform:        macosx\n"
+      "install-name:    '/usr/lib/libfoo.dylib'\n"
+      "current-version: 1.2.3\n"
+      "compatibility-version: 0\n"
+      "swift-abi-version: 5\n"
+      "exports:\n"
+      "  - archs:           [ i386 ]\n"
+      "    symbols:         [ _sym1 ]\n"
+      "    weak-def-symbols: [ _sym2 ]\n"
+      "    thread-local-symbols: [ _sym3 ]\n"
+      "  - archs:           [ x86_64 ]\n"
+      "    allowable-clients: [ clientA ]\n"
+      "    re-exports:      [ '/usr/lib/libfoo.dylib' ]\n"
+      "    objc-classes:    [ Class1 ]\n"
+      "    objc-eh-types:   [ Class1 ]\n"
+      "    objc-ivars:      [ Class1._ivar1 ]\n"
+      "...\n";
+
+  InterfaceFile File;
+  File.setPath("libfoo.dylib");
+  File.setInstallName("/usr/lib/libfoo.dylib");
+  File.setFileType(FileType::TBD_V3);
+  File.setArchitectures(AK_i386 | AK_x86_64);
+  File.setPlatform(PlatformKind::macOS);
+  File.setCurrentVersion(PackedVersion(1, 2, 3));
+  File.setTwoLevelNamespace();
+  File.setApplicationExtensionSafe();
+  File.setSwiftABIVersion(5);
+  File.setObjCConstraint(ObjCConstraintType::Retain_Release);
+  File.addAllowableClient("clientA", AK_x86_64);
+  File.addReexportedLibrary("/usr/lib/libfoo.dylib", AK_x86_64);
+  File.addSymbol(SymbolKind::GlobalSymbol, "_sym1", AK_i386);
+  File.addSymbol(SymbolKind::GlobalSymbol, "_sym2", AK_i386,
+                 SymbolFlags::WeakDefined);
+  File.addSymbol(SymbolKind::GlobalSymbol, "_sym3", AK_i386,
+                 SymbolFlags::ThreadLocalValue);
+  File.addSymbol(SymbolKind::ObjectiveCClass, "Class1", AK_x86_64);
+  File.addSymbol(SymbolKind::ObjectiveCClassEHType, "Class1", AK_x86_64);
+  File.addSymbol(SymbolKind::ObjectiveCInstanceVariable, "Class1._ivar1",
+                 AK_x86_64);
+
+  SmallString<4096> Buffer;
+  raw_svector_ostream OS(Buffer);
+  auto Result = TextAPIWriter::writeToStream(OS, File);
+  EXPECT_FALSE(Result);
+  EXPECT_STREQ(tbd_v3_file3, Buffer.c_str());
+}
+
+TEST(TBDv3, Platform_macOS) {
+  static const char tbd_v1_platform_macos[] = "--- !tapi-tbd-v3\n"
+                                              "archs: [ x86_64 ]\n"
+                                              "platform: macosx\n"
+                                              "install-name: Test.dylib\n"
+                                              "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_platform_macos, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(PlatformKind::macOS, File->getPlatform());
+}
+
+TEST(TBDv3, Platform_iOS) {
+  static const char tbd_v1_platform_ios[] = "--- !tapi-tbd-v3\n"
+                                            "archs: [ arm64 ]\n"
+                                            "platform: ios\n"
+                                            "install-name: Test.dylib\n"
+                                            "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_platform_ios, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(PlatformKind::iOS, File->getPlatform());
+}
+
+TEST(TBDv3, Platform_watchOS) {
+  static const char tbd_v1_platform_watchos[] = "--- !tapi-tbd-v3\n"
+                                                "archs: [ armv7k ]\n"
+                                                "platform: watchos\n"
+                                                "install-name: Test.dylib\n"
+                                                "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_platform_watchos, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(PlatformKind::watchOS, File->getPlatform());
+}
+
+TEST(TBDv3, Platform_tvOS) {
+  static const char tbd_v1_platform_tvos[] = "--- !tapi-tbd-v3\n"
+                                             "archs: [ arm64 ]\n"
+                                             "platform: tvos\n"
+                                             "install-name: Test.dylib\n"
+                                             "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_platform_tvos, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(PlatformKind::tvOS, File->getPlatform());
+}
+
+TEST(TBDv3, Platform_bridgeOS) {
+  static const char tbd_v1_platform_bridgeos[] = "--- !tapi-tbd-v3\n"
+                                                 "archs: [ armv7k ]\n"
+                                                 "platform: bridgeos\n"
+                                                 "install-name: Test.dylib\n"
+                                                 "...\n";
+
+  auto Buffer =
+      MemoryBuffer::getMemBuffer(tbd_v1_platform_bridgeos, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(PlatformKind::bridgeOS, File->getPlatform());
+}
+
+TEST(TBDv3, Swift_1_0) {
+  static const char tbd_v1_swift_1_0[] = "--- !tapi-tbd-v3\n"
+                                         "archs: [ arm64 ]\n"
+                                         "platform: ios\n"
+                                         "install-name: Test.dylib\n"
+                                         "swift-abi-version: 1.0\n"
+                                         "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_swift_1_0, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(1U, File->getSwiftABIVersion());
+}
+
+TEST(TBDv3, Swift_1_1) {
+  static const char tbd_v1_swift_1_1[] = "--- !tapi-tbd-v3\n"
+                                         "archs: [ arm64 ]\n"
+                                         "platform: ios\n"
+                                         "install-name: Test.dylib\n"
+                                         "swift-abi-version: 1.1\n"
+                                         "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_swift_1_1, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(2U, File->getSwiftABIVersion());
+}
+
+TEST(TBDv3, Swift_2_0) {
+  static const char tbd_v1_swift_2_0[] = "--- !tapi-tbd-v3\n"
+                                         "archs: [ arm64 ]\n"
+                                         "platform: ios\n"
+                                         "install-name: Test.dylib\n"
+                                         "swift-abi-version: 2.0\n"
+                                         "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_swift_2_0, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(3U, File->getSwiftABIVersion());
+}
+
+TEST(TBDv3, Swift_3_0) {
+  static const char tbd_v1_swift_3_0[] = "--- !tapi-tbd-v3\n"
+                                         "archs: [ arm64 ]\n"
+                                         "platform: ios\n"
+                                         "install-name: Test.dylib\n"
+                                         "swift-abi-version: 3.0\n"
+                                         "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_swift_3_0, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(4U, File->getSwiftABIVersion());
+}
+
+TEST(TBDv3, Swift_4_0) {
+  static const char tbd_v1_swift_4_0[] = "--- !tapi-tbd-v3\n"
+                                         "archs: [ arm64 ]\n"
+                                         "platform: ios\n"
+                                         "install-name: Test.dylib\n"
+                                         "swift-abi-version: 4.0\n"
+                                         "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_swift_4_0, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_FALSE(!!Result);
+  auto errorMessage = toString(Result.takeError());
+  EXPECT_EQ("malformed file\nTest.tbd:5:20: error: invalid Swift ABI "
+            "version.\nswift-abi-version: 4.0\n                   ^~~\n",
+            errorMessage);
+}
+
+TEST(TBDv3, Swift_5) {
+  static const char tbd_v1_swift_5[] = "--- !tapi-tbd-v3\n"
+                                       "archs: [ arm64 ]\n"
+                                       "platform: ios\n"
+                                       "install-name: Test.dylib\n"
+                                       "swift-abi-version: 5\n"
+                                       "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_swift_5, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(5U, File->getSwiftABIVersion());
+}
+
+TEST(TBDv3, Swift_99) {
+  static const char tbd_v1_swift_99[] = "--- !tapi-tbd-v3\n"
+                                        "archs: [ arm64 ]\n"
+                                        "platform: ios\n"
+                                        "install-name: Test.dylib\n"
+                                        "swift-abi-version: 99\n"
+                                        "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(tbd_v1_swift_99, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+  auto File = std::move(Result.get());
+  EXPECT_EQ(FileType::TBD_V3, File->getFileType());
+  EXPECT_EQ(99U, File->getSwiftABIVersion());
+}
+
+TEST(TBDv3, UnknownArchitecture) {
+  static const char tbd_v3_file_unknown_architecture[] =
+      "--- !tapi-tbd-v3\n"
+      "archs: [ foo ]\n"
+      "platform: macosx\n"
+      "install-name: Test.dylib\n"
+      "...\n";
+
+  auto Buffer =
+      MemoryBuffer::getMemBuffer(tbd_v3_file_unknown_architecture, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_TRUE(!!Result);
+}
+
+TEST(TBDv3, UnknownPlatform) {
+  static const char tbd_v3_file_unknown_platform[] = "--- !tapi-tbd-v3\n"
+                                                     "archs: [ i386 ]\n"
+                                                     "platform: newOS\n"
+                                                     "...\n";
+
+  auto Buffer =
+      MemoryBuffer::getMemBuffer(tbd_v3_file_unknown_platform, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_FALSE(!!Result);
+  auto errorMessage = toString(Result.takeError());
+  EXPECT_EQ("malformed file\nTest.tbd:3:11: error: unknown platform\nplatform: "
+            "newOS\n          ^~~~~\n",
+            errorMessage);
+}
+
+TEST(TBDv3, MalformedFile1) {
+  static const char malformed_file1[] = "--- !tapi-tbd-v3\n"
+                                        "archs: [ arm64 ]\n"
+                                        "foobar: \"Unsupported key\"\n"
+                                        "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(malformed_file1, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_FALSE(!!Result);
+  auto errorMessage = toString(Result.takeError());
+  ASSERT_EQ("malformed file\nTest.tbd:2:1: error: missing required key "
+            "'platform'\narchs: [ arm64 ]\n^\n",
+            errorMessage);
+}
+
+TEST(TBDv3, MalformedFile2) {
+  static const char malformed_file2[] = "--- !tapi-tbd-v3\n"
+                                        "archs: [ arm64 ]\n"
+                                        "platform: ios\n"
+                                        "install-name: Test.dylib\n"
+                                        "foobar: \"Unsupported key\"\n"
+                                        "...\n";
+
+  auto Buffer = MemoryBuffer::getMemBuffer(malformed_file2, "Test.tbd");
+  auto Result = TextAPIReader::get(std::move(Buffer));
+  EXPECT_FALSE(!!Result);
+  auto errorMessage = toString(Result.takeError());
+  ASSERT_EQ(
+      "malformed file\nTest.tbd:5:9: error: unknown key 'foobar'\nfoobar: "
+      "\"Unsupported key\"\n        ^~~~~~~~~~~~~~~~~\n",
+      errorMessage);
+}
+
+} // namespace TBDv3