mirror of https://github.com/grpc/grpc.git
Matthew Stevenson
6 years ago
commit
b875ac978d
11 changed files with 138 additions and 20 deletions
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/*
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* |
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* Copyright 2019 gRPC 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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* |
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*/ |
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#include <gtest/gtest.h> |
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#include <grpc/grpc.h> |
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#include "src/core/lib/transport/metadata.h" |
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#include "src/core/lib/transport/static_metadata.h" |
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#include "test/core/util/test_config.h" |
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namespace grpc_core { |
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namespace { |
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TEST(StaticMetadataTest, ReadAllStaticElements) { |
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// This makes sure that all static elements are returned when
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// grpc_mdelem_from_slices is called with key pairs pregenerated.
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for (int i = 0; i < GRPC_STATIC_MDELEM_COUNT; i++) { |
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const grpc_mdelem mdelem = grpc_static_mdelem_manifested()[i]; |
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const grpc_mdelem mdelem2 = |
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grpc_mdelem_from_slices(GRPC_MDKEY(mdelem), GRPC_MDVALUE(mdelem)); |
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EXPECT_EQ(mdelem.payload, mdelem2.payload); |
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} |
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} |
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} // namespace
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} // namespace grpc_core
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int main(int argc, char** argv) { |
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grpc_init(); |
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grpc::testing::TestEnvironment env(argc, argv); |
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::testing::InitGoogleTest(&argc, argv); |
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int retval = RUN_ALL_TESTS(); |
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grpc_shutdown(); |
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return retval; |
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} |
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## C++ tests on iOS |
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[GTMGoogleTestRunner](https://github.com/google/google-toolbox-for-mac/blob/master/UnitTesting/GTMGoogleTestRunner.mm) is used to convert googletest cases to XCTest that can be run on iOS. GTMGoogleTestRunner doesn't execute the `main` function, so we can't have any test logic in `main`. |
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However, it's ok to call `::testing::InitGoogleTest` in `main`, as `GTMGoogleTestRunner` [calls InitGoogleTest](https://github.com/google/google-toolbox-for-mac/blob/master/UnitTesting/GTMGoogleTestRunner.mm#L151). |
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`grpc::testing::TestEnvironment` can also be called from `main`, as it does some test initialization (install crash handler, seed RNG) that's not strictly required to run testcases on iOS. |
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## Porting exising C++ tests to run on iOS |
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Please follow these guidelines when porting tests to run on iOS: |
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- Tests need to use the googletest framework |
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- Any setup/teardown code in `main` needs to be moved to `SetUpTestCase`/`TearDownTestCase`, and `TEST` needs to be changed to `TEST_F`. |
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- [Death tests](https://github.com/google/googletest/blob/master/googletest/docs/advanced.md#death-tests) are not supported on iOS, so use the `*_IF_SUPPORTED()` macros to ensure that your code compiles on iOS. |
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For example, the following test |
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```c++ |
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TEST(MyTest, TestOne) { |
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ASSERT_DEATH(ThisShouldDie(), ""); |
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} |
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int main(int argc, char** argv) { |
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grpc::testing::TestEnvironment env(argc, argv); |
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::testing::InitGoogleTest(&argc, argv); |
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grpc_init(); |
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return RUN_ALL_TESTS(); |
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grpc_shutdown(); |
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} |
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``` |
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should be changed to |
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```c++ |
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class MyTest : public ::testing::Test { |
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protected: |
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static void SetUpTestCase() { grpc_init(); } |
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static void TearDownTestCase() { grpc_shutdown(); } |
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}; |
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TEST_F(MyTest, TestOne) { |
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ASSERT_DEATH_IF_SUPPORTED(ThisShouldDie(), ""); |
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} |
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int main(int argc, char** argv) { |
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grpc::testing::TestEnvironment env(argc, argv); |
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::testing::InitGoogleTest(&argc, argv); |
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return RUN_ALL_TESTS(); |
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} |
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``` |
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## Limitations |
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Due to a [limitation](https://github.com/google/google-toolbox-for-mac/blob/master/UnitTesting/GTMGoogleTestRunner.mm#L48-L56) in GTMGoogleTestRunner, `SetUpTestCase`/`TeardownTestCase` will be called before/after *every* individual test case, similar to `SetUp`/`TearDown`. |
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