Spring Framework example source code file (GroovyScriptFactoryTests.java)
The Spring Framework GroovyScriptFactoryTests.java source code
/*
* Copyright 2002-2008 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.springframework.scripting.groovy;
import java.io.FileNotFoundException;
import java.util.Arrays;
import java.util.Map;
import groovy.lang.DelegatingMetaClass;
import groovy.lang.GroovyObject;
import junit.framework.TestCase;
import org.easymock.MockControl;
import org.springframework.aop.support.AopUtils;
import org.springframework.aop.target.dynamic.Refreshable;
import org.springframework.beans.TestBean;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.UnsatisfiedDependencyException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.NestedRuntimeException;
import org.springframework.scripting.Calculator;
import org.springframework.scripting.CallCounter;
import org.springframework.scripting.ConfigurableMessenger;
import org.springframework.scripting.ContextScriptBean;
import org.springframework.scripting.Messenger;
import org.springframework.scripting.ScriptCompilationException;
import org.springframework.scripting.ScriptSource;
import org.springframework.scripting.support.ScriptFactoryPostProcessor;
import org.springframework.test.AssertThrows;
/**
* @author Rob Harrop
* @author Rick Evans
* @author Rod Johnson
* @author Juergen Hoeller
* @author Mark Fisher
*/
public class GroovyScriptFactoryTests extends TestCase {
public void testStaticScript() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovyContext.xml", getClass());
assertTrue(Arrays.asList(ctx.getBeanNamesForType(Calculator.class)).contains("calculator"));
assertTrue(Arrays.asList(ctx.getBeanNamesForType(Messenger.class)).contains("messenger"));
Calculator calc = (Calculator) ctx.getBean("calculator");
Messenger messenger = (Messenger) ctx.getBean("messenger");
assertFalse("Shouldn't get proxy when refresh is disabled", AopUtils.isAopProxy(calc));
assertFalse("Shouldn't get proxy when refresh is disabled", AopUtils.isAopProxy(messenger));
assertFalse("Scripted object should not be instance of Refreshable", calc instanceof Refreshable);
assertFalse("Scripted object should not be instance of Refreshable", messenger instanceof Refreshable);
assertEquals(calc, calc);
assertEquals(messenger, messenger);
assertTrue(!messenger.equals(calc));
assertTrue(messenger.hashCode() != calc.hashCode());
assertTrue(!messenger.toString().equals(calc.toString()));
String desiredMessage = "Hello World!";
assertEquals("Message is incorrect", desiredMessage, messenger.getMessage());
assertTrue(ctx.getBeansOfType(Calculator.class).values().contains(calc));
assertTrue(ctx.getBeansOfType(Messenger.class).values().contains(messenger));
}
public void testStaticPrototypeScript() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovyContext.xml", getClass());
ConfigurableMessenger messenger = (ConfigurableMessenger) ctx.getBean("messengerPrototype");
ConfigurableMessenger messenger2 = (ConfigurableMessenger) ctx.getBean("messengerPrototype");
assertFalse("Shouldn't get proxy when refresh is disabled", AopUtils.isAopProxy(messenger));
assertFalse("Scripted object should not be instance of Refreshable", messenger instanceof Refreshable);
assertNotSame(messenger, messenger2);
assertSame(messenger.getClass(), messenger2.getClass());
assertEquals("Hello World!", messenger.getMessage());
assertEquals("Hello World!", messenger2.getMessage());
messenger.setMessage("Bye World!");
messenger2.setMessage("Byebye World!");
assertEquals("Bye World!", messenger.getMessage());
assertEquals("Byebye World!", messenger2.getMessage());
}
public void testStaticScriptWithInstance() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovyContext.xml", getClass());
assertTrue(Arrays.asList(ctx.getBeanNamesForType(Messenger.class)).contains("messengerInstance"));
Messenger messenger = (Messenger) ctx.getBean("messengerInstance");
assertFalse("Shouldn't get proxy when refresh is disabled", AopUtils.isAopProxy(messenger));
assertFalse("Scripted object should not be instance of Refreshable", messenger instanceof Refreshable);
String desiredMessage = "Hello World!";
assertEquals("Message is incorrect", desiredMessage, messenger.getMessage());
assertTrue(ctx.getBeansOfType(Messenger.class).values().contains(messenger));
}
public void testStaticScriptWithInlineDefinedInstance() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovyContext.xml", getClass());
assertTrue(Arrays.asList(ctx.getBeanNamesForType(Messenger.class)).contains("messengerInstanceInline"));
Messenger messenger = (Messenger) ctx.getBean("messengerInstanceInline");
assertFalse("Shouldn't get proxy when refresh is disabled", AopUtils.isAopProxy(messenger));
assertFalse("Scripted object should not be instance of Refreshable", messenger instanceof Refreshable);
String desiredMessage = "Hello World!";
assertEquals("Message is incorrect", desiredMessage, messenger.getMessage());
assertTrue(ctx.getBeansOfType(Messenger.class).values().contains(messenger));
}
public void testNonStaticScript() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovyRefreshableContext.xml", getClass());
Messenger messenger = (Messenger) ctx.getBean("messenger");
assertTrue("Should be a proxy for refreshable scripts", AopUtils.isAopProxy(messenger));
assertTrue("Should be an instance of Refreshable", messenger instanceof Refreshable);
String desiredMessage = "Hello World!";
assertEquals("Message is incorrect", desiredMessage, messenger.getMessage());
Refreshable refreshable = (Refreshable) messenger;
refreshable.refresh();
assertEquals("Message is incorrect after refresh.", desiredMessage, messenger.getMessage());
assertEquals("Incorrect refresh count", 2, refreshable.getRefreshCount());
}
public void testNonStaticPrototypeScript() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovyRefreshableContext.xml", getClass());
ConfigurableMessenger messenger = (ConfigurableMessenger) ctx.getBean("messengerPrototype");
ConfigurableMessenger messenger2 = (ConfigurableMessenger) ctx.getBean("messengerPrototype");
assertTrue("Should be a proxy for refreshable scripts", AopUtils.isAopProxy(messenger));
assertTrue("Should be an instance of Refreshable", messenger instanceof Refreshable);
assertEquals("Hello World!", messenger.getMessage());
assertEquals("Hello World!", messenger2.getMessage());
messenger.setMessage("Bye World!");
messenger2.setMessage("Byebye World!");
assertEquals("Bye World!", messenger.getMessage());
assertEquals("Byebye World!", messenger2.getMessage());
Refreshable refreshable = (Refreshable) messenger;
refreshable.refresh();
assertEquals("Hello World!", messenger.getMessage());
assertEquals("Byebye World!", messenger2.getMessage());
assertEquals("Incorrect refresh count", 2, refreshable.getRefreshCount());
}
public void testScriptCompilationException() throws Exception {
try {
new ClassPathXmlApplicationContext("org/springframework/scripting/groovy/groovyBrokenContext.xml");
fail("Should throw exception for broken script file");
}
catch (NestedRuntimeException ex) {
assertTrue("Wrong root cause: " + ex, ex.contains(ScriptCompilationException.class));
}
}
public void testScriptedClassThatDoesNotHaveANoArgCtor() throws Exception {
MockControl mock = MockControl.createControl(ScriptSource.class);
ScriptSource script = (ScriptSource) mock.getMock();
script.getScriptAsString();
final String badScript = "class Foo { public Foo(String foo) {}}";
mock.setReturnValue(badScript);
script.suggestedClassName();
mock.setReturnValue("someName");
mock.replay();
GroovyScriptFactory factory = new GroovyScriptFactory(ScriptFactoryPostProcessor.INLINE_SCRIPT_PREFIX + badScript);
try {
factory.getScriptedObject(script, new Class[]{});
fail("Must have thrown a ScriptCompilationException (no public no-arg ctor in scripted class).");
}
catch (ScriptCompilationException expected) {
assertTrue(expected.contains(InstantiationException.class));
}
mock.verify();
}
public void testScriptedClassThatHasNoPublicNoArgCtor() throws Exception {
MockControl mock = MockControl.createControl(ScriptSource.class);
ScriptSource script = (ScriptSource) mock.getMock();
script.getScriptAsString();
final String badScript = "class Foo { protected Foo() {}}";
mock.setReturnValue(badScript);
script.suggestedClassName();
mock.setReturnValue("someName");
mock.replay();
GroovyScriptFactory factory = new GroovyScriptFactory(ScriptFactoryPostProcessor.INLINE_SCRIPT_PREFIX + badScript);
try {
factory.getScriptedObject(script, new Class[]{});
fail("Must have thrown a ScriptCompilationException (no oublic no-arg ctor in scripted class).");
}
catch (ScriptCompilationException expected) {
assertTrue(expected.contains(IllegalAccessException.class));
}
mock.verify();
}
public void testWithTwoClassesDefinedInTheOneGroovyFile_CorrectClassFirst() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("twoClassesCorrectOneFirst.xml", getClass());
Messenger messenger = (Messenger) ctx.getBean("messenger");
assertNotNull(messenger);
assertEquals("Hello World!", messenger.getMessage());
// Check can cast to GroovyObject
GroovyObject goo = (GroovyObject) messenger;
}
public void testWithTwoClassesDefinedInTheOneGroovyFile_WrongClassFirst() throws Exception {
try {
ApplicationContext ctx = new ClassPathXmlApplicationContext("twoClassesWrongOneFirst.xml", getClass());
ctx.getBean("messenger", Messenger.class);
fail("Must have failed: two classes defined in GroovyScriptFactory source, non-Messenger class defined first.");
}
// just testing for failure here, hence catching Exception...
catch (Exception expected) {
}
}
public void testCtorWithNullScriptSourceLocator() throws Exception {
try {
new GroovyScriptFactory(null);
fail("Must have thrown exception by this point.");
}
catch (IllegalArgumentException expected) {
}
}
public void testCtorWithEmptyScriptSourceLocator() throws Exception {
try {
new GroovyScriptFactory("");
fail("Must have thrown exception by this point.");
}
catch (IllegalArgumentException expected) {
}
}
public void testCtorWithWhitespacedScriptSourceLocator() throws Exception {
try {
new GroovyScriptFactory("\n ");
fail("Must have thrown exception by this point.");
}
catch (IllegalArgumentException expected) {
}
}
public void testWithInlineScriptWithLeadingWhitespace() throws Exception {
try {
new ClassPathXmlApplicationContext("lwspBadGroovyContext.xml", getClass());
fail("Must have thrown a BeanCreationException ('inline:' prefix was preceded by whitespace");
}
catch (BeanCreationException expected) {
assertTrue(expected.contains(FileNotFoundException.class));
}
}
public void testGetScriptedObjectDoesNotChokeOnNullInterfacesBeingPassedIn() throws Exception {
MockControl mock = MockControl.createControl(ScriptSource.class);
ScriptSource scriptSource = (ScriptSource) mock.getMock();
scriptSource.getScriptAsString();
mock.setReturnValue("class Bar {}");
scriptSource.suggestedClassName();
mock.setReturnValue("someName");
mock.replay();
GroovyScriptFactory factory = new GroovyScriptFactory("a script source locator (doesn't matter here)");
Object scriptedObject = factory.getScriptedObject(scriptSource, null);
assertNotNull(scriptedObject);
mock.verify();
}
public void testGetScriptedObjectDoesChokeOnNullScriptSourceBeingPassedIn() throws Exception {
GroovyScriptFactory factory = new GroovyScriptFactory("a script source locator (doesn't matter here)");
try {
factory.getScriptedObject(null, null);
fail("Must have thrown a NullPointerException as per contract ('null' ScriptSource supplied");
}
catch (NullPointerException expected) {
}
}
public void testResourceScriptFromTag() throws Exception {
ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("groovy-with-xsd.xml", getClass());
Messenger messenger = (Messenger) ctx.getBean("messenger");
CallCounter countingAspect = (CallCounter) ctx.getBean("getMessageAspect");
assertTrue(AopUtils.isAopProxy(messenger));
assertFalse(messenger instanceof Refreshable);
assertEquals(0, countingAspect.getCalls());
assertEquals("Hello World!", messenger.getMessage());
assertEquals(1, countingAspect.getCalls());
ctx.close();
assertEquals(-200, countingAspect.getCalls());
}
public void testPrototypeScriptFromTag() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovy-with-xsd.xml", getClass());
ConfigurableMessenger messenger = (ConfigurableMessenger) ctx.getBean("messengerPrototype");
ConfigurableMessenger messenger2 = (ConfigurableMessenger) ctx.getBean("messengerPrototype");
assertNotSame(messenger, messenger2);
assertSame(messenger.getClass(), messenger2.getClass());
assertEquals("Hello World!", messenger.getMessage());
assertEquals("Hello World!", messenger2.getMessage());
messenger.setMessage("Bye World!");
messenger2.setMessage("Byebye World!");
assertEquals("Bye World!", messenger.getMessage());
assertEquals("Byebye World!", messenger2.getMessage());
}
public void testInlineScriptFromTag() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovy-with-xsd.xml", getClass());
Calculator calculator = (Calculator) ctx.getBean("calculator");
assertNotNull(calculator);
assertFalse(calculator instanceof Refreshable);
}
public void testRefreshableFromTag() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovy-with-xsd.xml", getClass());
assertTrue(Arrays.asList(ctx.getBeanNamesForType(Messenger.class)).contains("refreshableMessenger"));
Messenger messenger = (Messenger) ctx.getBean("refreshableMessenger");
CallCounter countingAspect = (CallCounter) ctx.getBean("getMessageAspect");
assertTrue(AopUtils.isAopProxy(messenger));
assertTrue(messenger instanceof Refreshable);
assertEquals(0, countingAspect.getCalls());
assertEquals("Hello World!", messenger.getMessage());
assertEquals(1, countingAspect.getCalls());
assertTrue(ctx.getBeansOfType(Messenger.class).values().contains(messenger));
}
public void testAnonymousScriptDetected() throws Exception {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovy-with-xsd.xml", getClass());
Map beans = ctx.getBeansOfType(Messenger.class);
assertEquals(4, beans.size());
}
/**
* Tests the SPR-2098 bug whereby no more than 1 property element could be
* passed to a scripted bean :(
*/
public void testCanPassInMoreThanOneProperty() {
ApplicationContext ctx = new ClassPathXmlApplicationContext("groovy-multiple-properties.xml", getClass());
TestBean tb = (TestBean) ctx.getBean("testBean");
ContextScriptBean bean = (ContextScriptBean) ctx.getBean("bean");
assertEquals("The first property ain't bein' injected.", "Sophie Marceau", bean.getName());
assertEquals("The second property ain't bein' injected.", 31, bean.getAge());
assertEquals(tb, bean.getTestBean());
assertEquals(ctx, bean.getApplicationContext());
ContextScriptBean bean2 = (ContextScriptBean) ctx.getBean("bean2");
assertEquals(tb, bean2.getTestBean());
assertEquals(ctx, bean2.getApplicationContext());
try {
ctx.getBean("bean3");
fail("Should have thrown BeanCreationException");
}
catch (BeanCreationException ex) {
// expected
assertTrue(ex.contains(UnsatisfiedDependencyException.class));
}
}
public void testMetaClassWithBeans() {
testMetaClass("org/springframework/scripting/groovy/calculators.xml");
}
public void testMetaClassWithXsd() {
testMetaClass("org/springframework/scripting/groovy/calculators-with-xsd.xml");
}
private void testMetaClass(final String xmlFile) {
// expect the exception we threw in the custom metaclass to show it got invoked
AssertThrows at = new AssertThrows(IllegalStateException.class) {
public void test() throws Exception {
ApplicationContext ctx =
new ClassPathXmlApplicationContext(xmlFile);
Calculator calc = (Calculator) ctx.getBean("delegatingCalculator");
calc.add(1, 2);
}
};
at.runTest();
assertEquals("Gotcha", at.getActualException().getMessage());
}
public void testFactoryBean() {
ApplicationContext context = new ClassPathXmlApplicationContext("groovyContext.xml", getClass());
Object factory = context.getBean("&factory");
assertTrue(factory instanceof FactoryBean);
Object result = context.getBean("factory");
assertTrue(result instanceof String);
assertEquals("test", result);
}
public void testRefreshableFactoryBean() {
ApplicationContext context = new ClassPathXmlApplicationContext("groovyContext.xml", getClass());
Object factory = context.getBean("&refreshableFactory");
assertTrue(factory instanceof FactoryBean);
Object result = context.getBean("refreshableFactory");
assertTrue(result instanceof String);
assertEquals("test", result);
}
public static class TestCustomizer implements GroovyObjectCustomizer {
public void customize(GroovyObject goo) {
DelegatingMetaClass dmc = new DelegatingMetaClass(goo.getMetaClass()) {
public Object invokeMethod(Object arg0, String mName, Object[] arg2) {
if (mName.indexOf("Missing") != -1) {
throw new IllegalStateException("Gotcha");
}
else {
return super.invokeMethod(arg0, mName, arg2);
}
}
};
dmc.initialize();
goo.setMetaClass(dmc);
}
}
}
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