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 * permit persons to whom the Software is furnished to do so, subject to
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 *
 * The above copyright notice and this permission notice shall be
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package org.voltdb.regressionsuites;

import java.io.IOException;

import org.voltdb.BackendTarget;
import org.voltdb.VoltTable;
import org.voltdb.VoltTable.ColumnInfo;
import org.voltdb.VoltType;
import org.voltdb.client.Client;
import org.voltdb.compiler.VoltProjectBuilder;

import junit.framework.Test;

public class TestEmptySchema extends RegressionSuite
{
    public TestEmptySchema(String name) {
        super(name);
    }

    static VoltProjectBuilder getBuilderForTest() throws IOException {
        VoltProjectBuilder builder = new VoltProjectBuilder();
        builder.addLiteralSchema("");
        return builder;
    }

    public void testEmptySchema() throws Exception {
        final Client client = getClient();
        // sleep a little so that we have time for the IPC backend to actually be running
        // so it can screw us on empty results
        Thread.sleep(1000);

        // Even running should be an improvement (ENG-4645), but do something just to be sure
        // Also, check to be sure we get a full schema for the table and index stats
        ColumnInfo[] expectedSchema = new ColumnInfo[13];
        expectedSchema[0] = new ColumnInfo("TIMESTAMP", VoltType.BIGINT);
        expectedSchema[1] = new ColumnInfo("HOST_ID", VoltType.INTEGER);
        expectedSchema[2] = new ColumnInfo("HOSTNAME", VoltType.STRING);
        expectedSchema[3] = new ColumnInfo("SITE_ID", VoltType.INTEGER);
        expectedSchema[4] = new ColumnInfo("PARTITION_ID", VoltType.BIGINT);
        expectedSchema[5] = new ColumnInfo("TABLE_NAME", VoltType.STRING);
        expectedSchema[6] = new ColumnInfo("TABLE_TYPE", VoltType.STRING);
        expectedSchema[7] = new ColumnInfo("TUPLE_COUNT", VoltType.BIGINT);
        expectedSchema[8] = new ColumnInfo("TUPLE_ALLOCATED_MEMORY", VoltType.BIGINT);
        expectedSchema[9] = new ColumnInfo("TUPLE_DATA_MEMORY", VoltType.BIGINT);
        expectedSchema[10] = new ColumnInfo("STRING_DATA_MEMORY", VoltType.BIGINT);
        expectedSchema[11] = new ColumnInfo("TUPLE_LIMIT", VoltType.INTEGER);
        expectedSchema[12] = new ColumnInfo("PERCENT_FULL", VoltType.INTEGER);
        VoltTable expectedTable = new VoltTable(expectedSchema);

        VoltTable[] results = client.callProcedure("@Statistics", "TABLE", 0).getResults();
        System.out.println("TABLE RESULTS: " + results[0]);
        assertEquals(0, results[0].getRowCount());
        assertEquals(expectedSchema.length, results[0].getColumnCount());
        validateSchema(results[0], expectedTable);

        expectedSchema = new ColumnInfo[12];
        expectedSchema[0] = new ColumnInfo("TIMESTAMP", VoltType.BIGINT);
        expectedSchema[1] = new ColumnInfo("HOST_ID", VoltType.INTEGER);
        expectedSchema[2] = new ColumnInfo("HOSTNAME", VoltType.STRING);
        expectedSchema[3] = new ColumnInfo("SITE_ID", VoltType.INTEGER);
        expectedSchema[4] = new ColumnInfo("PARTITION_ID", VoltType.BIGINT);
        expectedSchema[5] = new ColumnInfo("INDEX_NAME", VoltType.STRING);
        expectedSchema[6] = new ColumnInfo("TABLE_NAME", VoltType.STRING);
        expectedSchema[7] = new ColumnInfo("INDEX_TYPE", VoltType.STRING);
        expectedSchema[8] = new ColumnInfo("IS_UNIQUE", VoltType.TINYINT);
        expectedSchema[9] = new ColumnInfo("IS_COUNTABLE", VoltType.TINYINT);
        expectedSchema[10] = new ColumnInfo("ENTRY_COUNT", VoltType.BIGINT);
        expectedSchema[11] = new ColumnInfo("MEMORY_ESTIMATE", VoltType.BIGINT);
        expectedTable = new VoltTable(expectedSchema);

        results = client.callProcedure("@Statistics", "INDEX", 0).getResults();
        System.out.println("INDEX RESULTS: " + results[0]);
        assertEquals(0, results[0].getRowCount());
        assertEquals(expectedSchema.length, results[0].getColumnCount());
        validateSchema(results[0], expectedTable);
    }

    static public Test suite() throws IOException {
        // the suite made here will all be using the tests from this class
        MultiConfigSuiteBuilder builder = new MultiConfigSuiteBuilder(TestEmptySchema.class);

        // build up a project builder for the workload
        VoltProjectBuilder project = getBuilderForTest();
        boolean success;
        LocalCluster config = new LocalCluster("decimal-default.jar", 2, 1, 0, BackendTarget.NATIVE_EE_JNI);
        success = config.compile(project);
        assertTrue(success);

        // add this config to the set of tests to run
        builder.addServerConfig(config);

        return builder;
    }
}