com.linkedin.pinot.core.startree.hll.HllStarTreeIndexTest.java Source code

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Here is the source code for com.linkedin.pinot.core.startree.hll.HllStarTreeIndexTest.java

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/**
 * Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
 *
 * 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.linkedin.pinot.core.startree.hll;

import com.linkedin.pinot.common.data.Schema;
import com.linkedin.pinot.core.indexsegment.IndexSegment;
import com.linkedin.pinot.core.startree.StarTreeIndexTestSegmentHelper;
import org.apache.commons.io.FileUtils;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;

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

/**
 * This test generates a Star-Tree segment with random data, and ensures that
 * aggregation results computed using star-tree index operator are the same as
 * aggregation results computed by scanning raw docs.
 */
public class HllStarTreeIndexTest extends BaseHllStarTreeIndexTest {

    private static final String SEGMENT_NAME = "starTreeSegment";
    private static final String SEGMENT_DIR_NAME = "/tmp/star-tree-index";

    private IndexSegment _segment;
    private Schema _schema;

    @BeforeSuite
    void setup() throws Exception {
        _schema = StarTreeIndexTestSegmentHelper.buildSegmentWithHll(SEGMENT_DIR_NAME, SEGMENT_NAME, HLL_CONFIG);
        _segment = StarTreeIndexTestSegmentHelper.loadSegment(SEGMENT_DIR_NAME, SEGMENT_NAME);
    }

    @AfterSuite
    void tearDown() throws IOException {
        FileUtils.deleteDirectory(new File(SEGMENT_DIR_NAME));
    }

    /**
     * This test ensures that the aggregation result computed using the star-tree index operator
     * is the same as computed by scanning raw-docs, for a hard-coded set of queries.
     *
     * @throws Exception
     */
    @Test
    public void test() throws Exception {
        testHardCodedQueries(_segment, _schema);
    }
}