TestDefaultWarningCollector.java

/*
 * 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.facebook.presto.execution.warnings;

import com.facebook.presto.common.WarningHandlingLevel;
import com.facebook.presto.spi.PrestoException;
import com.facebook.presto.spi.PrestoWarning;
import com.facebook.presto.spi.StandardWarningCode;
import com.facebook.presto.spi.WarningCode;
import com.facebook.presto.spi.WarningCollector;
import org.testng.annotations.Test;

import static org.testng.Assert.assertEquals;

public class TestDefaultWarningCollector
{
    @Test
    public void testNoWarnings()
    {
        WarningCollector warningCollector = new DefaultWarningCollector(new WarningCollectorConfig().setMaxWarnings(0), WarningHandlingLevel.NORMAL);
        warningCollector.add(new PrestoWarning(new WarningCode(1, "1"), "warning 1"));
        assertEquals(warningCollector.getWarnings().size(), 0);
    }

    @Test
    public void testMaxWarnings()
    {
        WarningCollector warningCollector = new DefaultWarningCollector(new WarningCollectorConfig().setMaxWarnings(2), WarningHandlingLevel.NORMAL);
        warningCollector.add(new PrestoWarning(new WarningCode(1, "1"), "warning 1"));
        warningCollector.add(new PrestoWarning(new WarningCode(2, "2"), "warning 2"));
        warningCollector.add(new PrestoWarning(new WarningCode(3, "3"), "warning 3"));
        assertEquals(warningCollector.getWarnings().size(), 2);
    }

    @Test
    public void testAddingSameTypeWarnings()
    {
        WarningCollector warningCollector = new DefaultWarningCollector(new WarningCollectorConfig(), WarningHandlingLevel.NORMAL);
        warningCollector.add(new PrestoWarning(new WarningCode(1, "1"), "warning 1-1"));
        warningCollector.add(new PrestoWarning(new WarningCode(1, "1"), "warning 1-2"));
        warningCollector.add(new PrestoWarning(new WarningCode(2, "2"), "warning 2"));
        warningCollector.add(new PrestoWarning(new WarningCode(3, "3"), "warning 3"));
        assertEquals(warningCollector.getWarnings().size(), 4);
    }

    @Test
    public void testWarningSuppress()
    {
        WarningCollector warningCollector = new DefaultWarningCollector(new WarningCollectorConfig(), WarningHandlingLevel.SUPPRESS);
        warningCollector.add(new PrestoWarning(new WarningCode(1, "1"), "warning 1"));
        assertEquals(warningCollector.getWarnings().size(), 0);
    }

    @Test(expectedExceptions = {PrestoException.class})
    public void testWarningAsErrorThrowsException()
    {
        WarningCollector warningCollector = new DefaultWarningCollector(new WarningCollectorConfig(), WarningHandlingLevel.AS_ERROR);
        warningCollector.add(new PrestoWarning(new WarningCode(1, "1"), "warning 1"));
    }

    @Test
    public void testWarningAsErrorNoExceptionWhenAddingParserWarning()
    {
        WarningCollector warningCollector = new DefaultWarningCollector(new WarningCollectorConfig(), WarningHandlingLevel.AS_ERROR);
        warningCollector.add(new PrestoWarning(StandardWarningCode.PARSER_WARNING, "1"));
        assertEquals(warningCollector.getWarnings().size(), 1);
    }
}