/*
 * JBoss, Home of Professional Open Source
 * Copyright 2009, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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.jboss.shrinkwrap.api.asset;

import java.io.InputStream;

import junit.framework.Assert;

import org.junit.Test;

/**
 * Test to ensure that we are can use a ClassLoader Resource as a resource.
 * 
 * https://jira.jboss.org/jira/browse/TMPARCH-5
 * 
 * @author <a href="mailto:aslak@conduct.no">Aslak Knutsen</a>
 * 
 */
public class ClassLoaderAssetTestCase {
    private static final String EXISTING_RESOURCE = "org/jboss/shrinkwrap/api/asset/Test.properties";

    private static final String NON_EXISTING_RESOURCE = "org/jboss/shrinkwrap/api/asset/NoFileShouldBePlacedHere.properties";

    @Test
    public void shouldBeAbleToReadResource() throws Exception {
        Asset asset = new ClassLoaderAsset(EXISTING_RESOURCE);
        InputStream io = asset.openStream();

        Assert.assertNotNull(io);
        Assert.assertEquals("Should be able to read the content of the resource", "shrinkwrap=true",
            ApiTestUtils.convertToString(io));
    }

    @Test
    public void shouldThrowExceptionOnNullName() {
        try {
            new ClassLoaderAsset(null);
            Assert.fail("Should have thrown IllegalArgumentException");
        } catch (Exception e) {
            Assert.assertEquals("A null resourceName argument should result in a IllegalArgumentException",
                IllegalArgumentException.class, e.getClass());
        }
    }

    @Test
    public void shouldThrowExceptionOnNullClassloader() {
        try {
            new ClassLoaderAsset(EXISTING_RESOURCE, null);
            Assert.fail("Should have thrown IllegalArgumentException");
        } catch (Exception e) {
            Assert.assertEquals("A null classLoader argument should result in a IllegalArgumentException",
                IllegalArgumentException.class, e.getClass());
        }
    }

    @Test
    public void shouldThrowExceptionOnMissingResource() {
        try {
            new ClassLoaderAsset(NON_EXISTING_RESOURCE);
            Assert.fail("Should have thrown IllegalArgumentException");
        } catch (Exception e) {
            Assert.assertEquals(
                "A resource that is not found in the classLoader should result in a IllegalArgumentException",
                IllegalArgumentException.class, e.getClass());
        }
    }
    
    @Test
    public void shouldBeAbleToReturnResource() throws Exception {
        final Asset asset = new ClassLoaderAsset(EXISTING_RESOURCE);
        
        Assert.assertEquals(((ClassLoaderAsset)asset).getSource(), EXISTING_RESOURCE);
    }
}