AndroidJUnit3Builder.java
/*
* Copyright (C) 2015 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 androidx.test.internal.runner.junit3;
import static androidx.test.internal.util.AndroidRunnerBuilderUtil.hasJUnit3TestMethod;
import static androidx.test.internal.util.AndroidRunnerBuilderUtil.isJUnit3Test;
import android.util.Log;
import androidx.test.internal.runner.EmptyTestRunner;
import androidx.test.internal.util.AndroidRunnerParams;
import junit.framework.TestCase;
import org.junit.internal.builders.JUnit3Builder;
import org.junit.runner.Runner;
import org.junit.runners.model.RunnerBuilder;
/**
* A {@link RunnerBuilder} that will build customized runners needed for specialized Android {@link
* TestCase}s.
*/
public class AndroidJUnit3Builder extends JUnit3Builder {
private static final String TAG = "AndroidJUnit3Builder";
private final AndroidRunnerParams androidRunnerParams;
/** @param runnerParams {@link AndroidRunnerParams} that stores common runner parameters */
public AndroidJUnit3Builder(AndroidRunnerParams runnerParams) {
androidRunnerParams = runnerParams;
}
@Override
public Runner runnerForClass(Class<?> testClass) throws Throwable {
try {
if (isJUnit3Test(testClass)) {
if (!hasJUnit3TestMethod(testClass)) {
// ideally we would just let JUnit38ClassRunner handle this case, but for historical
// reasons there was special handling when classpath scanning for this case
return new EmptyTestRunner(testClass);
}
return new JUnit38ClassRunner(new AndroidTestSuite(testClass, androidRunnerParams));
}
} catch (Throwable e) {
// log error message including stack trace before throwing to help with debugging.
Log.e(TAG, "Error constructing runner", e);
throw e;
}
return null;
}
}