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Android example source code file (AssignableFromTest.java)

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

Java - Android tags/keywords

animal, assignablefrom, assignablefromtest, exception, human, mammal, nosuchmethodexception, pen, pencil, reflection, testcase, testmethod, writinginstrument

The AssignableFromTest.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * 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 android.test.suitebuilder;

import junit.framework.TestCase;

import java.lang.reflect.Method;

public class AssignableFromTest extends TestCase {
    private AssignableFrom assignableFrom;


    protected void setUp() throws Exception {
        super.setUp();
        assignableFrom = new AssignableFrom(Animal.class);
    }

    public void testSelfIsAssignable() throws Exception {
        assertTrue(assignableFrom.apply(testMethodFor(Animal.class)));
    }

    public void testSubclassesAreAssignable() throws Exception {
        assertTrue(assignableFrom.apply(testMethodFor(Mammal.class)));
        assertTrue(assignableFrom.apply(testMethodFor(Human.class)));
    }

    public void testNotAssignable() throws Exception {
        assertFalse(assignableFrom.apply(testMethodFor(Pencil.class)));
    }

    public void testImplementorsAreAssignable() throws Exception {
        assignableFrom = new AssignableFrom(WritingInstrument.class);

        assertTrue(assignableFrom.apply(testMethodFor(Pencil.class)));
        assertTrue(assignableFrom.apply(testMethodFor(Pen.class)));
    }

    private TestMethod testMethodFor(Class<? extends TestCase> aClass)
            throws NoSuchMethodException {
        Method method = aClass.getMethod("testX");
        return new TestMethod(method, aClass);
    }

    private class Animal extends TestCase {
        public void testX() {
        }
    }

    private class Mammal extends Animal {
        public void testX() {
        }
    }

    private class Human extends Mammal {
        public void testX() {
        }
    }

    private interface WritingInstrument {
    }

    private class Pencil extends TestCase implements WritingInstrument {
        public void testX() {
        }
    }

    private class Pen extends TestCase implements WritingInstrument {
        public void testX() {
        }
    }
}

Other Android examples (source code examples)

Here is a short list of links related to this Android AssignableFromTest.java source code file:

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