| // Copyright 2018 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <memory> |
| |
| #include "dawn/native/Error.h" |
| #include "dawn/native/ErrorData.h" |
| #include "gtest/gtest.h" |
| |
| namespace dawn::native { |
| namespace { |
| |
| int placeholderSuccess = 0xbeef; |
| const char* placeholderErrorMessage = "I am an error message :3"; |
| |
| // Check returning a success MaybeError with {}; |
| TEST(ErrorTests, Error_Success) { |
| auto ReturnSuccess = []() -> MaybeError { return {}; }; |
| |
| MaybeError result = ReturnSuccess(); |
| ASSERT_TRUE(result.IsSuccess()); |
| } |
| |
| // Check returning an error MaybeError with "return DAWN_VALIDATION_ERROR" |
| TEST(ErrorTests, Error_Error) { |
| auto ReturnError = []() -> MaybeError { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| MaybeError result = ReturnError(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| // Check returning a success ResultOrError with an implicit conversion |
| TEST(ErrorTests, ResultOrError_Success) { |
| auto ReturnSuccess = []() -> ResultOrError<int*> { return &placeholderSuccess; }; |
| |
| ResultOrError<int*> result = ReturnSuccess(); |
| ASSERT_TRUE(result.IsSuccess()); |
| ASSERT_EQ(result.AcquireSuccess(), &placeholderSuccess); |
| } |
| |
| // Check returning an error ResultOrError with "return DAWN_VALIDATION_ERROR" |
| TEST(ErrorTests, ResultOrError_Error) { |
| auto ReturnError = []() -> ResultOrError<int*> { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| ResultOrError<int*> result = ReturnError(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| // Check DAWN_TRY handles successes correctly. |
| TEST(ErrorTests, TRY_Success) { |
| auto ReturnSuccess = []() -> MaybeError { return {}; }; |
| |
| // We need to check that DAWN_TRY doesn't return on successes |
| bool tryReturned = true; |
| |
| auto Try = [ReturnSuccess, &tryReturned]() -> MaybeError { |
| DAWN_TRY(ReturnSuccess()); |
| tryReturned = false; |
| return {}; |
| }; |
| |
| MaybeError result = Try(); |
| ASSERT_TRUE(result.IsSuccess()); |
| ASSERT_FALSE(tryReturned); |
| } |
| |
| // Check DAWN_TRY handles errors correctly. |
| TEST(ErrorTests, TRY_Error) { |
| auto ReturnError = []() -> MaybeError { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto Try = [ReturnError]() -> MaybeError { |
| DAWN_TRY(ReturnError()); |
| // DAWN_TRY should return before this point |
| EXPECT_FALSE(true); |
| return {}; |
| }; |
| |
| MaybeError result = Try(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| // Check DAWN_TRY adds to the backtrace. |
| TEST(ErrorTests, TRY_AddsToBacktrace) { |
| auto ReturnError = []() -> MaybeError { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto SingleTry = [ReturnError]() -> MaybeError { |
| DAWN_TRY(ReturnError()); |
| return {}; |
| }; |
| |
| auto DoubleTry = [SingleTry]() -> MaybeError { |
| DAWN_TRY(SingleTry()); |
| return {}; |
| }; |
| |
| MaybeError singleResult = SingleTry(); |
| ASSERT_TRUE(singleResult.IsError()); |
| |
| MaybeError doubleResult = DoubleTry(); |
| ASSERT_TRUE(doubleResult.IsError()); |
| |
| std::unique_ptr<ErrorData> singleData = singleResult.AcquireError(); |
| std::unique_ptr<ErrorData> doubleData = doubleResult.AcquireError(); |
| |
| ASSERT_EQ(singleData->GetBacktrace().size() + 1, doubleData->GetBacktrace().size()); |
| } |
| |
| // Check DAWN_TRY_ASSIGN handles successes correctly. |
| TEST(ErrorTests, TRY_RESULT_Success) { |
| auto ReturnSuccess = []() -> ResultOrError<int*> { return &placeholderSuccess; }; |
| |
| // We need to check that DAWN_TRY doesn't return on successes |
| bool tryReturned = true; |
| |
| auto Try = [ReturnSuccess, &tryReturned]() -> ResultOrError<int*> { |
| int* result = nullptr; |
| DAWN_TRY_ASSIGN(result, ReturnSuccess()); |
| tryReturned = false; |
| |
| EXPECT_EQ(result, &placeholderSuccess); |
| return result; |
| }; |
| |
| ResultOrError<int*> result = Try(); |
| ASSERT_TRUE(result.IsSuccess()); |
| ASSERT_FALSE(tryReturned); |
| ASSERT_EQ(result.AcquireSuccess(), &placeholderSuccess); |
| } |
| |
| // Check DAWN_TRY_ASSIGN handles errors correctly. |
| TEST(ErrorTests, TRY_RESULT_Error) { |
| auto ReturnError = []() -> ResultOrError<int*> { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto Try = [ReturnError]() -> ResultOrError<int*> { |
| int* result = nullptr; |
| DAWN_TRY_ASSIGN(result, ReturnError()); |
| DAWN_UNUSED(result); |
| |
| // DAWN_TRY should return before this point |
| EXPECT_FALSE(true); |
| return &placeholderSuccess; |
| }; |
| |
| ResultOrError<int*> result = Try(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| // Check DAWN_TRY_ASSIGN adds to the backtrace. |
| TEST(ErrorTests, TRY_RESULT_AddsToBacktrace) { |
| auto ReturnError = []() -> ResultOrError<int*> { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto SingleTry = [ReturnError]() -> ResultOrError<int*> { |
| DAWN_TRY(ReturnError()); |
| return &placeholderSuccess; |
| }; |
| |
| auto DoubleTry = [SingleTry]() -> ResultOrError<int*> { |
| DAWN_TRY(SingleTry()); |
| return &placeholderSuccess; |
| }; |
| |
| ResultOrError<int*> singleResult = SingleTry(); |
| ASSERT_TRUE(singleResult.IsError()); |
| |
| ResultOrError<int*> doubleResult = DoubleTry(); |
| ASSERT_TRUE(doubleResult.IsError()); |
| |
| std::unique_ptr<ErrorData> singleData = singleResult.AcquireError(); |
| std::unique_ptr<ErrorData> doubleData = doubleResult.AcquireError(); |
| |
| ASSERT_EQ(singleData->GetBacktrace().size() + 1, doubleData->GetBacktrace().size()); |
| } |
| |
| // Check a ResultOrError can be DAWN_TRY_ASSIGNED in a function that returns an Error |
| TEST(ErrorTests, TRY_RESULT_ConversionToError) { |
| auto ReturnError = []() -> ResultOrError<int*> { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto Try = [ReturnError]() -> MaybeError { |
| int* result = nullptr; |
| DAWN_TRY_ASSIGN(result, ReturnError()); |
| DAWN_UNUSED(result); |
| |
| return {}; |
| }; |
| |
| MaybeError result = Try(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| // Check a ResultOrError can be DAWN_TRY_ASSIGNED in a function that returns an Error |
| // Version without Result<E*, T*> |
| TEST(ErrorTests, TRY_RESULT_ConversionToErrorNonPointer) { |
| auto ReturnError = []() -> ResultOrError<int> { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto Try = [ReturnError]() -> MaybeError { |
| int result = 0; |
| DAWN_TRY_ASSIGN(result, ReturnError()); |
| DAWN_UNUSED(result); |
| |
| return {}; |
| }; |
| |
| MaybeError result = Try(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| // Check DAWN_TRY_ASSIGN handles successes correctly. |
| TEST(ErrorTests, TRY_RESULT_CLEANUP_Success) { |
| auto ReturnSuccess = []() -> ResultOrError<int*> { return &placeholderSuccess; }; |
| |
| // We need to check that DAWN_TRY_ASSIGN_WITH_CLEANUP doesn't return on successes and the |
| // cleanup is not called. |
| bool tryReturned = true; |
| bool tryCleanup = false; |
| |
| auto Try = [ReturnSuccess, &tryReturned, &tryCleanup]() -> ResultOrError<int*> { |
| int* result = nullptr; |
| DAWN_TRY_ASSIGN_WITH_CLEANUP(result, ReturnSuccess(), { tryCleanup = true; }); |
| tryReturned = false; |
| |
| EXPECT_EQ(result, &placeholderSuccess); |
| return result; |
| }; |
| |
| ResultOrError<int*> result = Try(); |
| ASSERT_TRUE(result.IsSuccess()); |
| ASSERT_FALSE(tryReturned); |
| ASSERT_FALSE(tryCleanup); |
| ASSERT_EQ(result.AcquireSuccess(), &placeholderSuccess); |
| } |
| |
| // Check DAWN_TRY_ASSIGN handles cleanups. |
| TEST(ErrorTests, TRY_RESULT_CLEANUP_Cleanup) { |
| auto ReturnError = []() -> ResultOrError<int*> { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| // We need to check that DAWN_TRY_ASSIGN_WITH_CLEANUP calls cleanup when error. |
| bool tryCleanup = false; |
| |
| auto Try = [ReturnError, &tryCleanup]() -> ResultOrError<int*> { |
| int* result = nullptr; |
| DAWN_TRY_ASSIGN_WITH_CLEANUP(result, ReturnError(), { tryCleanup = true; }); |
| DAWN_UNUSED(result); |
| |
| // DAWN_TRY_ASSIGN_WITH_CLEANUP should return before this point |
| EXPECT_FALSE(true); |
| return &placeholderSuccess; |
| }; |
| |
| ResultOrError<int*> result = Try(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| ASSERT_TRUE(tryCleanup); |
| } |
| |
| // Check DAWN_TRY_ASSIGN can override return value when needed. |
| TEST(ErrorTests, TRY_RESULT_CLEANUP_OverrideReturn) { |
| auto ReturnError = []() -> ResultOrError<int*> { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto Try = [ReturnError]() -> bool { |
| int* result = nullptr; |
| DAWN_TRY_ASSIGN_WITH_CLEANUP(result, ReturnError(), {}, true); |
| DAWN_UNUSED(result); |
| |
| // DAWN_TRY_ASSIGN_WITH_CLEANUP should return before this point |
| EXPECT_FALSE(true); |
| return false; |
| }; |
| |
| bool result = Try(); |
| ASSERT_TRUE(result); |
| } |
| |
| // Check a MaybeError can be DAWN_TRIED in a function that returns an ResultOrError |
| // Check DAWN_TRY handles errors correctly. |
| TEST(ErrorTests, TRY_ConversionToErrorOrResult) { |
| auto ReturnError = []() -> MaybeError { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto Try = [ReturnError]() -> ResultOrError<int*> { |
| DAWN_TRY(ReturnError()); |
| return &placeholderSuccess; |
| }; |
| |
| ResultOrError<int*> result = Try(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| // Check a MaybeError can be DAWN_TRIED in a function that returns an ResultOrError |
| // Check DAWN_TRY handles errors correctly. Version without Result<E*, T*> |
| TEST(ErrorTests, TRY_ConversionToErrorOrResultNonPointer) { |
| auto ReturnError = []() -> MaybeError { |
| return DAWN_VALIDATION_ERROR(placeholderErrorMessage); |
| }; |
| |
| auto Try = [ReturnError]() -> ResultOrError<int> { |
| DAWN_TRY(ReturnError()); |
| return 42; |
| }; |
| |
| ResultOrError<int> result = Try(); |
| ASSERT_TRUE(result.IsError()); |
| |
| std::unique_ptr<ErrorData> errorData = result.AcquireError(); |
| ASSERT_EQ(errorData->GetMessage(), placeholderErrorMessage); |
| } |
| |
| } // namespace |
| } // namespace dawn::native |