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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.annotations.GwtIncompatible;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link ExpectFailure} used as JUnit {@link Rule}. */
@RunWith(JUnit4.class)
@GwtIncompatible("org.junit.Rule")
public class ExpectFailureRuleTest {
@Rule public final ExpectFailure expectFailure = new ExpectFailure();
@Rule public final ExpectedException thrown = ExpectedException.none();
@Test
public void expectFail_captureFailureAsExpected() {
expectFailure.whenTesting().withMessage("abc").fail();
assertThat(expectFailure.getFailure()).hasMessageThat().isEqualTo("abc");
}
@Test
public void expectFail_passesIfUnused() {
assertThat(4).isEqualTo(4);
}
@Test
public void expectFail_failsAfterTest() {
expectFailure.whenTesting().that(4).isEqualTo(4);
thrown.expectMessage("ExpectFailure.whenTesting() invoked, but no failure was caught.");
}
@Test
public void expectFail_throwInSubject_shouldPropagateOriginalException() {
thrown.expectMessage("Throwing deliberately");
expectFailure.whenTesting().that(throwingMethod()).isEqualTo(2);
}
@Test
public void expectFail_throwAfterSubject_shouldPropagateOriginalException() {
expectFailure.whenTesting().that(2).isEqualTo(2);
thrown.expectMessage("Throwing deliberately");
throwingMethod();
}
private static long throwingMethod() {
throw new RuntimeException("Throwing deliberately");
}
}
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