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Ant example source code file (ConcatFilterTest.java)

This example Ant source code file (ConcatFilterTest.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 - Ant tags/keywords

concatfiltertest, file, file_append, file_append_with, file_append_with, file_prepend, file_prepend_with, file_prepend_with, fileutils, io, ioexception, line, line, string, string

The ConcatFilterTest.java source code

/*
 *  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.tools.ant.filters;

import java.io.File;
import java.io.IOException;

import org.apache.tools.ant.BuildFileTest;
import org.apache.tools.ant.util.FileUtils;
import org.apache.tools.ant.util.StringUtils;

/**
 * JUnit Testcases for ConcatReader
 */
public class ConcatFilterTest extends BuildFileTest {

    private static final FileUtils FILE_UTILS = FileUtils.getFileUtils();
    private static final String lSep = StringUtils.LINE_SEP;

    private static final String FILE_PREPEND_WITH =
          "this-should-be-the-first-line" + lSep
        + "Line  1" + lSep
        + "Line  2" + lSep
        + "Line  3" + lSep
        + "Line  4" + lSep
    ;

    private static final String FILE_PREPEND =
          "Line  1" + lSep
        + "Line  2" + lSep
        + "Line  3" + lSep
        + "Line  4" + lSep
        + "Line  5" + lSep
    ;

    private static final String FILE_APPEND_WITH =
          "Line 57" + lSep
        + "Line 58" + lSep
        + "Line 59" + lSep
        + "Line 60" + lSep
        + "this-should-be-the-last-line" + lSep
    ;

    private static final String FILE_APPEND =
          "Line 56" + lSep
        + "Line 57" + lSep
        + "Line 58" + lSep
        + "Line 59" + lSep
        + "Line 60" + lSep
    ;


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

    public void setUp() {
        configureProject("src/etc/testcases/filters/concat.xml");
    }

    public void tearDown() {
        executeTarget("cleanup");
    }

    public void testFilterReaderNoArgs() throws IOException {
        executeTarget("testFilterReaderNoArgs");
        File expected = FILE_UTILS.resolveFile(getProject().getBaseDir(),"input/concatfilter.test");
        File result = FILE_UTILS.resolveFile(getProject().getBaseDir(), "result/concat.FilterReaderNoArgs.test");
        assertTrue("testFilterReaderNoArgs: Result not like expected", FILE_UTILS.contentEquals(expected, result));
    }

    public void testFilterReaderBefore() {
        doTest("testFilterReaderPrepend", FILE_PREPEND_WITH, FILE_APPEND);
    }

    public void testFilterReaderAfter() {
        doTest("testFilterReaderAppend", FILE_PREPEND, FILE_APPEND_WITH);
    }

    public void testFilterReaderBeforeAfter() {
        doTest("testFilterReaderPrependAppend", FILE_PREPEND_WITH, FILE_APPEND_WITH);
    }

    public void testConcatFilter() {
        doTest("testConcatFilter", FILE_PREPEND, FILE_APPEND);
    }

    public void testConcatFilterBefore() {
        doTest("testConcatFilterPrepend", FILE_PREPEND_WITH, FILE_APPEND);
    }

    public void testConcatFilterAfter() {
        doTest("testConcatFilterAppend", FILE_PREPEND, FILE_APPEND_WITH);
    }

    public void testConcatFilterBeforeAfter() {
        doTest("testConcatFilterPrependAppend", FILE_PREPEND_WITH, FILE_APPEND_WITH);
    }


    /**
     * Executes a target and checks the beginning and the ending of a file.
     * The filename depends on the target name: target name <i>testHelloWorld
     * will search for a file <i>result/concat.HelloWorld.test.
     * @param target The target to invoke
     * @param expectedStart The string which should be at the beginning of the file
     * @param expectedEnd The string which should be at the end of the file
     */
    protected void doTest(String target, String expectedStart, String expectedEnd) {
        executeTarget(target);
        String resultContent = read("result/concat." + target.substring(4) + ".test");
        assertTrue("First 5 lines differs.", resultContent.startsWith(expectedStart));
        assertTrue("Last 5 lines differs.", resultContent.endsWith(expectedEnd));
    }


    /**
     * Wrapper for FileUtils.readFully().
     * Additionally it resolves the filename according the the projects basedir
     * and closes the used reader.
     * @param filename The name of the file to read
     * @return the content of the file or <i>null if something goes wrong
     */
    protected String read(String filename) {
        String content = null;
        try {
            File file = FILE_UTILS.resolveFile(getProject().getBaseDir(), filename);
            java.io.FileReader rdr = new java.io.FileReader(file);
            content = FileUtils.readFully(rdr);
            rdr.close();
            rdr = null;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return content;
    }

}

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