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Groovy example source code file (InvokeGroovyMethodTest.java)

This example Groovy source code file (InvokeGroovyMethodTest.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

arraylist, case, closure, groovytestcase, integer, integer, list, object, object, stringbuffer, stringbuffer, switch, throwable, throwable, util

The Groovy InvokeGroovyMethodTest.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.util.GroovyTestCase;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Tests method invocation
 *
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 21515 $
 */
public class InvokeGroovyMethodTest extends GroovyTestCase {

    private StringBuffer buffer;

    // Method invocation tests
    //-------------------------------------------------------------------------

    public void testInvokeMethodNoParams() throws Throwable {
        buffer = new StringBuffer();

        List list = new ArrayList();
        list.add("abc");
        list.add("def");

        InvokerHelper.invokeMethod(list, "each", new Closure(this) {
            protected Object doCall(Object arguments) {
                buffer.append(arguments.toString());
                return null;
            }
        });

        assertEquals("buffer", "abcdef", buffer.toString());
    }

    public void testMatchesWithObject() throws Throwable {
        assertMatches(new Integer(1), new Integer(1), true);
        assertMatches(new Integer(1), new Integer(2), false);
    }

    public void testMatchesWithClass() throws Throwable {
        assertMatches(new Integer(1), Integer.class, true);
        assertMatches(new Integer(1), Number.class, true);
        assertMatches(new Integer(1), Double.class, false);
    }

    public void testMatchesWithList() throws Throwable {
        assertMatches(new Integer(1), Arrays.asList(new Object[]{new Integer(2), new Integer(1)}), true);
        assertMatches(new Integer(1), Arrays.asList(new Object[]{new Integer(2), new Integer(3)}), false);
    }

    // Implementation methods
    //-------------------------------------------------------------------------
    protected void assertMatches(Object switchValue, Object caseValue, boolean expected) {
        assertEquals(
                "Switch on: " + switchValue + " Case: " + caseValue,
                expected,
                ((Boolean) (InvokerHelper.invokeMethod(caseValue, "isCase", switchValue))).booleanValue());
    }

}

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