/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.ant.antunit;

import org.apache.tools.ant.BuildEvent;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.util.StringUtils;

import junit.framework.Assert;
import junit.framework.TestCase;

public class LogCapturerTest extends TestCase {

    public LogCapturerTest(String name) {
        super(name);
    }

    public void testAddAsReference() {
        Project p = new Project();
        LogCapturer c = new LogCapturer(p);
        assertSame(c, p.getReference(LogCapturer.REFERENCE_ID));
    }

    public void testMessagePriorities() {
        Project p = new Project();
        LogCapturer c = new LogCapturer(p);

        String[] messages = new String[] {"err", "warn", "info", "verbose",
                                          "debug"};
        for (int i = 0; i < messages.length; i++) {
            BuildEvent be = new BuildEvent(p);
            be.setMessage(messages[i], i);
            c.messageLogged(be);
        }
        assertMessages(c.getErrLog(), messages, Project.MSG_ERR);
        assertMessages(c.getWarnLog(), messages, Project.MSG_WARN);
        assertMessages(c.getInfoLog(), messages, Project.MSG_INFO);
        assertMessages(c.getVerboseLog(), messages, Project.MSG_VERBOSE);
        assertMessages(c.getDebugLog(), messages, Project.MSG_DEBUG);
    }

    public void testWithoutMerge() {
        Project p = new Project();
        LogCapturer c = new LogCapturer(p);

        for (int i = 0; i < 2; i++) {
            BuildEvent be = new BuildEvent(p);
            be.setMessage(String.valueOf(i), 0);
            c.messageLogged(be);
        }
        Assert.assertEquals(c.getErrLog(false),
                            "0" + StringUtils.LINE_SEP
                            + "1" + StringUtils.LINE_SEP);
    }

    public void testWithMerge() {
        Project p = new Project();
        LogCapturer c = new LogCapturer(p);

        for (int i = 0; i < 2; i++) {
            BuildEvent be = new BuildEvent(p);
            be.setMessage(String.valueOf(i), 0);
            c.messageLogged(be);
        }
        Assert.assertEquals(c.getErrLog(), "01");
        Assert.assertEquals(c.getErrLog(true), "01");
    }

    private static void assertMessages(String actual, String[] messages,
                                       int upTo) {
        for (int i = 0; i <= upTo && i < messages.length; i++) {
            Assert.assertTrue("checking for " + messages[i] + " in " + actual,
                              actual.indexOf(messages[i]) > -1);
        }
        for (int i = upTo + 1; i < messages.length; i++) {
            Assert.assertTrue("checking for " + messages[i] + " in " + actual,
                              actual.indexOf(messages[i]) == -1);
        }
    }
}