com.google.reducisaurus.JsCompressorTest.java Source code

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Here is the source code for com.google.reducisaurus.JsCompressorTest.java

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/**
 * Copyright 2009 Google Inc.
 * 
 * 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 com.google.reducisaurus;

import com.google.reducisaurus.servlets.ErrorCollector;

import junit.framework.TestCase;

import org.apache.commons.io.FileUtils;
import org.junit.Test;

import java.io.File;
import java.io.StringReader;
import java.io.StringWriter;

public class JsCompressorTest extends TestCase {

    private String readFileToString(String filename) throws Exception {
        File file = new File(filename);
        return FileUtils.readFileToString(file, "UTF-8");
    }

    private String compressNoErrors(String js) throws Exception {
        StringReader input = new StringReader(js);
        StringWriter output = new StringWriter();
        ErrorCollector errorCollector = new ErrorCollector();
        new JsCompressor().compress(input, output, errorCollector);
        return output.toString();
    }

    @Test
    public final void testCompressSimple() throws Exception {
        assertEquals("", compressNoErrors(""));
        assertEquals("alert(a);", compressNoErrors("alert(a);"));
        assertEquals("function(a){alert(a)};", compressNoErrors("function (foo) { alert(foo); };"));
    }

    public final void testReadFileToString() throws Exception {
        assertEquals("function (foo) { alert (foo); };\n", readFileToString("tests/testdata/simple.js"));
    }

    public final void testFeedGadgetJs() throws Exception {
        String input = readFileToString("tests/testdata/feedgadget.js");
        String expected = readFileToString("tests/testdata/feedgadget-min.js");
        assertEquals(expected, compressNoErrors(input));
    }

    public final void testJQueryJs() throws Exception {
        String input = readFileToString("tests/testdata/jquery-1.3.2.js");
        String expected = readFileToString("tests/testdata/jquery-1.3.2-min.js");
        assertEquals(expected, compressNoErrors(input));
    }

    public final void testConcatenatedJs() throws Exception {
        String input = readFileToString("tests/testdata/concatenated.js");
        String expected = readFileToString("tests/testdata/concatenated-min.js");
        assertEquals(expected, compressNoErrors(input));
    }
}