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/*
* Copyright (c) 2011 Google, Inc.
*
* 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.common.truth;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.Lists;
import java.util.List;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runner.Runner;
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunListener;
import org.junit.runner.notification.RunNotifier;
import org.junit.runners.JUnit4;
/** Tests for {@link ExpectFailure} not used as JUnit's TestRule. */
@RunWith(JUnit4.class)
public class ExpectFailureNonRuleTest {
@Test
public void testExpect_userThrowExceptionInSubject_shouldPropagate() throws Exception {
final List<Failure> reportedFailure = Lists.newArrayList();
RunNotifier runNotifier = new RunNotifier();
runNotifier.addListener(
new RunListener() {
@Override
public void testFailure(Failure failure) throws Exception {
reportedFailure.add(failure);
}
});
Runner runner = new JUnit4(ExpectFailureThrowInSubject.class);
runner.run(runNotifier);
assertThat(reportedFailure).hasSize(2);
assertThat(reportedFailure.get(0).getException())
.hasMessageThat()
.contains("Throw deliberately");
assertThat(reportedFailure.get(1).getException())
.hasMessageThat()
.contains("ExpectFailure.whenTesting() invoked, but no failure was caught.");
}
@Test
public void testExpect_userThrowExceptionAfterSubject_shouldPropagate() throws Exception {
final List<Failure> reportedFailure = Lists.newArrayList();
RunNotifier runNotifier = new RunNotifier();
runNotifier.addListener(
new RunListener() {
@Override
public void testFailure(Failure failure) throws Exception {
reportedFailure.add(failure);
}
});
Runner runner = new JUnit4(ExpectFailureThrowAfterSubject.class);
runner.run(runNotifier);
assertThat(reportedFailure).hasSize(2);
assertThat(reportedFailure.get(0).getException())
.hasMessageThat()
.contains("Throw deliberately");
assertThat(reportedFailure.get(1).getException())
.hasMessageThat()
.contains("ExpectFailure.whenTesting() invoked, but no failure was caught.");
}
/**
* A test supporting test class which will fail because method in a subject will throw exception.
*/
public static class ExpectFailureThrowInSubject {
final ExpectFailure expectFailure = new ExpectFailure();
@Before
public void setupExpectFailure() {
expectFailure.enterRuleContext();
}
@After
public void ensureFailureCaught() {
expectFailure.ensureFailureCaught();
expectFailure.leaveRuleContext();
}
@Test
public void testExpect_throwInSubject_shouldPropagate() {
expectFailure.whenTesting().that(throwingMethod()).isEqualTo(4);
}
}
/**
* A test supporting test class which will fail because method after a subject will throw
* exception.
*/
public static class ExpectFailureThrowAfterSubject {
final ExpectFailure expectFailure = new ExpectFailure();
@Before
public void setupExpectFailure() {
expectFailure.enterRuleContext();
}
@After
public void ensureFailureCaught() {
expectFailure.ensureFailureCaught();
expectFailure.leaveRuleContext();
}
@Test
public void testExpect_throwInSubject_shouldPropagate() {
expectFailure.whenTesting().that(4).isEqualTo(4); // No failure being caught
long unused = throwingMethod();
}
}
private static long throwingMethod() {
throw new RuntimeException("Throw deliberately");
}
}
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