|  | // Copyright 2020 The Tint 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. | 
|  |  | 
|  | #ifndef SRC_TINT_AST_TEST_HELPER_H_ | 
|  | #define SRC_TINT_AST_TEST_HELPER_H_ | 
|  |  | 
|  | #include "gtest/gtest.h" | 
|  | #include "src/tint/program_builder.h" | 
|  |  | 
|  | namespace tint::ast { | 
|  |  | 
|  | /// Helper base class for testing | 
|  | template <typename BASE> | 
|  | class TestHelperBase : public BASE, public ProgramBuilder {}; | 
|  |  | 
|  | /// Helper class for testing that derives from testing::Test. | 
|  | using TestHelper = TestHelperBase<testing::Test>; | 
|  |  | 
|  | /// Helper class for testing that derives from `T`. | 
|  | template <typename T> | 
|  | using TestParamHelper = TestHelperBase<testing::TestWithParam<T>>; | 
|  |  | 
|  | }  // namespace tint::ast | 
|  |  | 
|  | #endif  // SRC_TINT_AST_TEST_HELPER_H_ |