org.apache.metron.performance.load.LoadOptionsTest.java Source code

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Here is the source code for org.apache.metron.performance.load.LoadOptionsTest.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.metron.performance.load;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.PosixParser;
import org.apache.commons.io.IOUtils;
import org.junit.Assert;
import org.junit.Test;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.util.EnumMap;
import java.util.List;
import java.util.Optional;

public class LoadOptionsTest {
    @Test
    public void testHappyPath() throws Exception {
        CommandLine cli = LoadOptions.parse(new PosixParser(), new String[] { "-eps", "1000", "-ot", "foo" });
        EnumMap<LoadOptions, Optional<Object>> results = LoadOptions.createConfig(cli);
        Assert.assertEquals(1000L, results.get(LoadOptions.EPS).get());
        Assert.assertEquals("foo", results.get(LoadOptions.OUTPUT_TOPIC).get());
        Assert.assertEquals(LoadGenerator.CONSUMER_GROUP, results.get(LoadOptions.CONSUMER_GROUP).get());
        Assert.assertEquals(Runtime.getRuntime().availableProcessors(), results.get(LoadOptions.NUM_THREADS).get());
        Assert.assertFalse(results.get(LoadOptions.BIASED_SAMPLE).isPresent());
        Assert.assertFalse(results.get(LoadOptions.CSV).isPresent());
    }

    @Test
    public void testCsvPresent() throws Exception {
        CommandLine cli = LoadOptions.parse(new PosixParser(), new String[] { "-c", "/tmp/blah" });
        EnumMap<LoadOptions, Optional<Object>> results = LoadOptions.createConfig(cli);
        Assert.assertEquals(new File("/tmp/blah"), results.get(LoadOptions.CSV).get());
    }

    @Test
    public void testCsvMissing() throws Exception {
        CommandLine cli = LoadOptions.parse(new PosixParser(), new String[] {});
        EnumMap<LoadOptions, Optional<Object>> results = LoadOptions.createConfig(cli);
        Assert.assertFalse(results.get(LoadOptions.CSV).isPresent());
    }

    @Test
    public void testThreadsByCores() throws Exception {
        CommandLine cli = LoadOptions.parse(new PosixParser(), new String[] { "-p", "2C" });
        EnumMap<LoadOptions, Optional<Object>> results = LoadOptions.createConfig(cli);
        Assert.assertEquals(2 * Runtime.getRuntime().availableProcessors(),
                results.get(LoadOptions.NUM_THREADS).get());
    }

    @Test
    public void testThreadsByNum() throws Exception {
        CommandLine cli = LoadOptions.parse(new PosixParser(), new String[] { "-p", "5" });
        EnumMap<LoadOptions, Optional<Object>> results = LoadOptions.createConfig(cli);
        Assert.assertEquals(5, results.get(LoadOptions.NUM_THREADS).get());
    }

    @Test
    public void testTemplatePresent() throws Exception {
        File templateFile = new File("target/template");
        String template = "test template1";
        try (BufferedWriter w = new BufferedWriter(new FileWriter(templateFile))) {
            IOUtils.write(template, w);
        }
        templateFile.deleteOnExit();
        CommandLine cli = LoadOptions.parse(new PosixParser(), new String[] { "-t", templateFile.getPath() });
        EnumMap<LoadOptions, Optional<Object>> results = LoadOptions.createConfig(cli);
        List<String> templates = (List<String>) results.get(LoadOptions.TEMPLATE).get();
        Assert.assertEquals(1, templates.size());
        Assert.assertEquals(template, templates.get(0));
    }

    @Test(expected = IllegalStateException.class)
    public void testTemplateMissing() throws Exception {
        LoadOptions.createConfig(LoadOptions.parse(new PosixParser(), new String[] { "-t", "target/template2" }));
    }
}