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