org.apache.lucene.benchmark.byTask.utils.StreamUtilsTest.java Source code

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Here is the source code for org.apache.lucene.benchmark.byTask.utils.StreamUtilsTest.java

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/*
 * 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.lucene.benchmark.byTask.utils;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;

import org.apache.commons.compress.compressors.CompressorStreamFactory;
import org.apache.lucene.benchmark.BenchmarkTestCase;
import org.junit.Before;
import org.junit.Test;

public class StreamUtilsTest extends BenchmarkTestCase {
    private static final String TEXT = "Some-Text...";
    private Path testDir;

    @Test
    public void testGetInputStreamPlainText() throws Exception {
        assertReadText(rawTextFile("txt"));
        assertReadText(rawTextFile("TXT"));
    }

    @Test
    public void testGetInputStreamGzip() throws Exception {
        assertReadText(rawGzipFile("gz"));
        assertReadText(rawGzipFile("gzip"));
        assertReadText(rawGzipFile("GZ"));
        assertReadText(rawGzipFile("GZIP"));
    }

    @Test
    public void testGetInputStreamBzip2() throws Exception {
        assertReadText(rawBzip2File("bz2"));
        assertReadText(rawBzip2File("bzip"));
        assertReadText(rawBzip2File("BZ2"));
        assertReadText(rawBzip2File("BZIP"));
    }

    @Test
    public void testGetOutputStreamBzip2() throws Exception {
        assertReadText(autoOutFile("bz2"));
        assertReadText(autoOutFile("bzip"));
        assertReadText(autoOutFile("BZ2"));
        assertReadText(autoOutFile("BZIP"));
    }

    @Test
    public void testGetOutputStreamGzip() throws Exception {
        assertReadText(autoOutFile("gz"));
        assertReadText(autoOutFile("gzip"));
        assertReadText(autoOutFile("GZ"));
        assertReadText(autoOutFile("GZIP"));
    }

    @Test
    public void testGetOutputStreamPlain() throws Exception {
        assertReadText(autoOutFile("txt"));
        assertReadText(autoOutFile("text"));
        assertReadText(autoOutFile("TXT"));
        assertReadText(autoOutFile("TEXT"));
    }

    private Path rawTextFile(String ext) throws Exception {
        Path f = testDir.resolve("testfile." + ext);
        BufferedWriter w = Files.newBufferedWriter(f, StandardCharsets.UTF_8);
        w.write(TEXT);
        w.newLine();
        w.close();
        return f;
    }

    private Path rawGzipFile(String ext) throws Exception {
        Path f = testDir.resolve("testfile." + ext);
        OutputStream os = new CompressorStreamFactory().createCompressorOutputStream(CompressorStreamFactory.GZIP,
                Files.newOutputStream(f));
        writeText(os);
        return f;
    }

    private Path rawBzip2File(String ext) throws Exception {
        Path f = testDir.resolve("testfile." + ext);
        OutputStream os = new CompressorStreamFactory().createCompressorOutputStream(CompressorStreamFactory.BZIP2,
                Files.newOutputStream(f));
        writeText(os);
        return f;
    }

    private Path autoOutFile(String ext) throws Exception {
        Path f = testDir.resolve("testfile." + ext);
        OutputStream os = StreamUtils.outputStream(f);
        writeText(os);
        return f;
    }

    private void writeText(OutputStream os) throws IOException {
        BufferedWriter w = new BufferedWriter(new OutputStreamWriter(os, StandardCharsets.UTF_8));
        w.write(TEXT);
        w.newLine();
        w.close();
    }

    private void assertReadText(Path f) throws Exception {
        InputStream ir = StreamUtils.inputStream(f);
        InputStreamReader in = new InputStreamReader(ir, StandardCharsets.UTF_8);
        BufferedReader r = new BufferedReader(in);
        String line = r.readLine();
        assertEquals("Wrong text found in " + f.getFileName(), TEXT, line);
        r.close();
    }

    @Override
    @Before
    public void setUp() throws Exception {
        super.setUp();
        testDir = createTempDir("ContentSourceTest");
    }
}