/*
* Copyright 2010 the original author or authors.
*
* 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 org.gradle.groovy.scripts;
import org.gradle.api.GradleScriptException;
import org.gradle.logging.StandardOutputCapture;
import org.hamcrest.Description;
import org.jmock.Expectations;
import org.jmock.Sequence;
import org.jmock.api.Action;
import org.jmock.api.Invocation;
import org.jmock.integration.junit4.JMock;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.jmock.lib.legacy.ClassImposteriser;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
@RunWith(JMock.class)
public class DefaultScriptRunnerFactoryTest {
private final JUnit4Mockery context = new JUnit4Mockery() {{
setImposteriser(ClassImposteriser.INSTANCE);
}};
private final Script scriptMock = context.mock(Script.class, "<script-to-string>");
private final StandardOutputCapture standardOutputCaptureMock = context.mock(StandardOutputCapture.class);
private final ClassLoader classLoaderDummy = context.mock(ClassLoader.class);
private final ScriptSource scriptSourceDummy = context.mock(ScriptSource.class);
private final ScriptExecutionListener scriptExecutionListenerMock = context.mock(ScriptExecutionListener.class);
private final DefaultScriptRunnerFactory factory = new DefaultScriptRunnerFactory(scriptExecutionListenerMock);
@Before
public void setUp() {
context.checking(new Expectations() {{
allowing(scriptMock).getStandardOutputCapture();
will(returnValue(standardOutputCaptureMock));
allowing(scriptMock).getScriptSource();
will(returnValue(scriptSourceDummy));
allowing(scriptMock).getContextClassloader();
will(returnValue(classLoaderDummy));
ignoring(scriptSourceDummy);
}});
}
@Test
public void createsScriptRunner() {
ScriptRunner<Script> scriptRunner = factory.create(scriptMock);
assertThat(scriptRunner.getScript(), sameInstance(scriptMock));
}
@Test
public void redirectsStandardOutputAndSetsContextClassLoaderWhenScriptIsRun() {
ScriptRunner<Script> scriptRunner = factory.create(scriptMock);
context.checking(new Expectations() {{
Sequence sequence = context.sequence("seq");
one(scriptExecutionListenerMock).beforeScript(scriptMock);
inSequence(sequence);
one(standardOutputCaptureMock).start();
inSequence(sequence);
one(scriptMock).run();
inSequence(sequence);
will(doAll(new Action() {
public void describeTo(Description description) {
description.appendValue("check context classloader");
}
public Object invoke(Invocation invocation) throws Throwable {
assertThat(Thread.currentThread().getContextClassLoader(), sameInstance(classLoaderDummy));
return null;
}
}));
one(standardOutputCaptureMock).stop();
inSequence(sequence);
one(scriptExecutionListenerMock).afterScript(scriptMock, null);
inSequence(sequence);
}});
ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
assertThat(originalClassLoader, not(sameInstance(classLoaderDummy)));
scriptRunner.run();
assertThat(Thread.currentThread().getContextClassLoader(), sameInstance(originalClassLoader));
}
@Test
public void wrapsExecutionExceptionAndRestoresStateWhenScriptFails() {
final RuntimeException failure = new RuntimeException();
ScriptRunner<Script> scriptRunner = factory.create(scriptMock);
context.checking(new Expectations() {{
Sequence sequence = context.sequence("seq");
one(scriptExecutionListenerMock).beforeScript(scriptMock);
inSequence(sequence);
one(standardOutputCaptureMock).start();
inSequence(sequence);
one(scriptMock).run();
inSequence(sequence);
will(throwException(failure));
one(standardOutputCaptureMock).stop();
inSequence(sequence);
one(scriptExecutionListenerMock).afterScript(with(sameInstance(scriptMock)), with(notNullValue(Throwable.class)));
inSequence(sequence);
}});
ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
assertThat(originalClassLoader, not(sameInstance(classLoaderDummy)));
try {
scriptRunner.run();
fail();
} catch (GradleScriptException e) {
assertThat(e.getMessage(), equalTo("A problem occurred evaluating <script-to-string>."));
assertThat(e.getCause(), sameInstance((Throwable) failure));
}
assertThat(Thread.currentThread().getContextClassLoader(), sameInstance(originalClassLoader));
}
}