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/*
* Copyright (C) 2014 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 com.google.android.apps.common.testing.ui.testapp;
import static com.google.android.apps.common.testing.ui.espresso.Espresso.onView;
import static com.google.android.apps.common.testing.ui.espresso.Espresso.setFailureHandler;
import static com.google.android.apps.common.testing.ui.espresso.action.ViewActions.click;
import static com.google.android.apps.common.testing.ui.espresso.matcher.ViewMatchers.withText;
import com.google.android.apps.common.testing.ui.espresso.FailureHandler;
import com.google.android.apps.common.testing.ui.espresso.NoMatchingViewException;
import com.google.android.apps.common.testing.ui.espresso.base.DefaultFailureHandler;
import android.content.Context;
import android.test.ActivityInstrumentationTestCase2;
import android.test.suitebuilder.annotation.LargeTest;
import android.util.Log;
import android.view.View;
import org.hamcrest.Matcher;
/**
* A sample of how to set a non-default {@link FailureHandler}.
*/
@LargeTest
public class CustomFailureHandlerTest extends ActivityInstrumentationTestCase2<MainActivity> {
private static final String TAG = "CustomFailureHandlerTest";
@SuppressWarnings("deprecation")
public CustomFailureHandlerTest() {
// This constructor was deprecated - but we want to support lower API levels.
super("com.google.android.apps.common.testing.ui.testapp", MainActivity.class);
}
@Override
public void setUp() throws Exception {
super.setUp();
getActivity();
setFailureHandler(new CustomFailureHandler(getInstrumentation().getTargetContext()));
}
public void testWithCustomFailureHandler() {
try {
onView(withText("does not exist")).perform(click());
} catch (MySpecialException expected) {
Log.e(TAG, "Special exception is special and expected: ", expected);
}
}
/**
* A {@link FailureHandler} that re-throws {@link NoMatchingViewException} as
* {@link MySpecialException}. All other functionality is delegated to
* {@link DefaultFailureHandler}.
*/
private static class CustomFailureHandler implements FailureHandler {
private final FailureHandler delegate;
public CustomFailureHandler(Context targetContext) {
delegate = new DefaultFailureHandler(targetContext);
}
@Override
public void handle(Throwable error, Matcher<View> viewMatcher) {
try {
delegate.handle(error, viewMatcher);
} catch (NoMatchingViewException e) {
throw new MySpecialException(e);
}
}
}
private static class MySpecialException extends RuntimeException {
MySpecialException(Throwable cause) {
super(cause);
}
}
}
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