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/*
* Copyright (C) 2022 The Android Open Source Project
*
* 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 vogar.target.testng;
import org.testng.TestNG;
import vogar.monitor.TargetMonitor;
import vogar.target.TargetRunner;
import vogar.target.TestEnvironment;
import java.util.concurrent.atomic.AtomicReference;
public class TestNgTargetRunner implements TargetRunner {
private final TargetMonitor monitor;
private final Class<?> testClass;
private final TestEnvironment testEnvironment;
private final String qualification;
private final TestNgAnnotationTransformer transformer;
private final String[] args;
public TestNgTargetRunner(
TargetMonitor monitor,
AtomicReference<String> skipPastReference,
TestEnvironment testEnvironment,
int timeoutSeconds,
Class<?> testClass,
String qualification,
String[] excludeFilters,
String[] args) {
this.monitor = monitor;
this.testClass = testClass;
this.testEnvironment = testEnvironment;
this.qualification = qualification;
this.args = args;
this.transformer =
new TestNgAnnotationTransformer(
timeoutSeconds, skipPastReference, qualification, args);
}
@Override
public boolean run() {
// Set up TestNg core infrastructure.
TestNG testng = new TestNG(false);
// This transformer handles test timeout and overrides it if vogar was run
// with specific timeout parameter (see --timeout option).
testng.setAnnotationTransformer(transformer);
// Disable parallel execution of tests using @DataProvider's.
// If parallel execution is enabled with @DataProvider(..., parallel = true) then it
// would break vogar.monitor.HostMonitor#followProcess protocol which relies on receiving
// control messages in specific order. It expects "{outcome: ...}" json-object
// followed by another "{result: ...}" json-object for each test run; whereas with parallel
// execution enabled for @DataProvider, HostMonitor#followProcess would receive all
// "outcome" objects, and then all "result" objects, in random order.
// The easiest way of preventing this behavior would be to disable parallel execution
// for data providers.
testng.setDataProviderThreadCount(1);
// Make TestNG less noisy.
testng.setVerbose(0);
// Proxy to pass TestNg test lifecycle calls to vogar.
TestNgListenerAdapter adapter = new TestNgListenerAdapter(monitor);
testng.addListener(adapter);
// Listener that resets environment for each test.
testng.addListener(new TestEnvironmentListener(testEnvironment));
testng.setTestClasses(new Class[] {testClass});
testng.run();
return true;
}
}
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