Groovy example source code file (MethodFailureTest.java)

This example Groovy source code file (MethodFailureTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

closure, groovyruntimeexception, groovyruntimeexception, groovytestcase, methodfailuretest, mockgroovyobject, mockgroovyobject, object, object, should, should

The Groovy MethodFailureTest.java source code

/*
 * Copyright 2003-2011 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.codehaus.groovy.runtime;

import groovy.lang.Closure;
import groovy.lang.GroovyObject;
import groovy.lang.GroovyRuntimeException;
import groovy.util.GroovyTestCase;

/**
 * Tests failing method invocations to ensure correct exceptions
 *
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 21515 $
 */
public class MethodFailureTest extends GroovyTestCase {

    public void testFailingMethod() {
        MockGroovyObject object = new MockGroovyObject();
        try {
            object.invokeMethod("nonExistentMethod", "hello");

            fail("Should have thrown an exception");
        }
        catch (GroovyRuntimeException e) {
            System.out.println(e);
        }
    }

    public void testMethodWhichCallsTheFailingMethod() {
        MockGroovyObject object = new MockGroovyObject();
        try {
            object.invokeMethod("methodThatFails", null);

            fail("Should have thrown an exception");
        }
        catch (GroovyRuntimeException e) {
            System.out.println(e);
            //e.printStackTrace();
        }
    }

    public void testMethodWhichCallsTheFailingMethodInsideAClosure() {
        MockGroovyObject object = new MockGroovyObject();
        try {
            object.invokeMethod("callClosure", new Closure(this) {
                protected Object doCall(GroovyObject object) {
                    return object.invokeMethod("nonExistentMethod", "hello");
                }
            });

            fail("Should have thrown an exception");
        }
        catch (GroovyRuntimeException e) {
            System.out.println(e);
            //e.printStackTrace();
        }
    }

}