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// Copyright 2017 The Bazel Authors. All rights reserved.
//
// 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.devtools.build.android.desugar;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.android.desugar.runtime.ThrowableExtensionTestUtility.getStrategyClassName;
import static com.google.devtools.build.android.desugar.runtime.ThrowableExtensionTestUtility.getTwrStrategyClassNameSpecifiedInSystemProperty;
import static com.google.devtools.build.android.desugar.runtime.ThrowableExtensionTestUtility.isMimicStrategy;
import static com.google.devtools.build.android.desugar.runtime.ThrowableExtensionTestUtility.isNullStrategy;
import static com.google.devtools.build.android.desugar.runtime.ThrowableExtensionTestUtility.isReuseStrategy;
import static org.junit.Assert.fail;
import com.google.devtools.build.android.desugar.runtime.ThrowableExtension;
import com.google.devtools.build.android.desugar.testdata.ClassUsingTryWithResources;
import java.io.IOException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** The functional test for desugaring try-with-resources. */
@RunWith(JUnit4.class)
public class DesugarTryWithResourcesFunctionalTest {
@Test
public void testCheckSuppressedExceptionsReturningEmptySuppressedExceptions() {
Throwable[] suppressed = ClassUsingTryWithResources.checkSuppressedExceptions(false);
assertThat(suppressed).isEmpty();
}
@Test
public void testPrintStackTraceOfCaughtException() {
String trace = ClassUsingTryWithResources.printStackTraceOfCaughtException();
if (isMimicStrategy()) {
assertThat(trace.toLowerCase()).contains("suppressed");
} else if (isReuseStrategy()) {
assertThat(trace.toLowerCase()).contains("suppressed");
} else if (isNullStrategy()) {
assertThat(trace.toLowerCase()).doesNotContain("suppressed");
} else {
fail("unexpected desugaring strategy " + ThrowableExtension.getStrategy());
}
}
@Test
public void testCheckSuppressedExceptionReturningOneSuppressedException() {
Throwable[] suppressed = ClassUsingTryWithResources.checkSuppressedExceptions(true);
if (isMimicStrategy()) {
assertThat(suppressed).hasLength(1);
} else if (isReuseStrategy()) {
assertThat(suppressed).hasLength(1);
} else if (isNullStrategy()) {
assertThat(suppressed).isEmpty();
} else {
fail("unexpected desugaring strategy " + ThrowableExtension.getStrategy());
}
}
@Test
public void testSimpleTryWithResources() {
try {
ClassUsingTryWithResources.simpleTryWithResources();
fail("Expected RuntimeException");
} catch (Exception expected) {
assertThat(expected.getClass()).isEqualTo(RuntimeException.class);
String expectedStrategyName = getTwrStrategyClassNameSpecifiedInSystemProperty();
assertThat(getStrategyClassName()).isEqualTo(expectedStrategyName);
if (isMimicStrategy()) {
assertThat(expected.getSuppressed()).isEmpty();
assertThat(ThrowableExtension.getSuppressed(expected)).hasLength(1);
assertThat(ThrowableExtension.getSuppressed(expected)[0].getClass())
.isEqualTo(IOException.class);
} else if (isReuseStrategy()) {
assertThat(expected.getSuppressed()).hasLength(1);
assertThat(expected.getSuppressed()[0].getClass()).isEqualTo(IOException.class);
assertThat(ThrowableExtension.getSuppressed(expected)[0].getClass())
.isEqualTo(IOException.class);
} else if (isNullStrategy()) {
assertThat(expected.getSuppressed()).isEmpty();
assertThat(ThrowableExtension.getSuppressed(expected)).isEmpty();
} else {
fail("unexpected desugaring strategy " + getStrategyClassName());
}
}
}
}
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