| // Copyright Istio 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. |
| |
| package maintest |
| |
| import ( |
| "os" |
| "testing" |
| ) |
| |
| const ( |
| // environment variable that triggers execution of the regular `main()` |
| // function that was compiled into the test binary |
| envRunRegularMain = "RUN_REGULAR_MAIN" |
| ) |
| |
| // TestMainOrRegularMain either runs tests or executes the regular `main()` |
| // function that was compiled into the test binary. |
| func TestMainOrRegularMain(m *testing.M, main func()) { |
| if shouldRunRegularMain() { |
| main() // run `main()` function that was compiled into the test binary |
| os.Exit(0) |
| } |
| os.Exit(m.Run()) // run tests |
| } |
| |
| // AskRegularMain changes environment for the test binary to trigger execution |
| // of the regular `main()` function, that was compiled into the test binary, |
| // instead of tests. |
| func AskRegularMain(env []string) []string { |
| return append(env, envRunRegularMain+"=1") |
| } |
| |
| func shouldRunRegularMain() bool { |
| return os.Getenv(envRunRegularMain) == "1" |
| } |