/*
* 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.atop;
import com.facebook.presto.testing.MaterializedResult;
import com.facebook.presto.testing.MaterializedRow;
import com.facebook.presto.testing.QueryRunner;
import com.google.common.collect.Iterables;
import org.intellij.lang.annotations.Language;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import static com.facebook.presto.atop.LocalAtopQueryRunner.createQueryRunner;
import static java.lang.String.format;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
public class TestAtopSmoke
{
private QueryRunner queryRunner;
@BeforeClass
public void setUp()
throws Exception
{
queryRunner = createQueryRunner();
}
@AfterClass
public void tearDown()
{
queryRunner.close();
}
@Test
public void testDisks()
{
assertThatQueryReturnsValue("SELECT device_name FROM disks LIMIT 1", "sda");
}
@Test
public void testPredicatePushdown()
{
assertThatQueryReturnsValue("SELECT device_name FROM disks WHERE start_time < current_timestamp LIMIT 1", "sda");
}
@Test
public void testReboots()
{
assertThatQueryReturnsValue("SELECT count(*) FROM reboots WHERE CAST(power_on_time AS date) = current_date", 2L);
}
private void assertThatQueryReturnsValue(@Language("SQL") String sql, Object expected)
{
MaterializedResult rows = queryRunner.execute(sql);
MaterializedRow materializedRow = Iterables.getOnlyElement(rows);
int fieldCount = materializedRow.getFieldCount();
assertTrue(fieldCount == 1, format("Expected only one column, but got '%d'", fieldCount));
Object value = materializedRow.getField(0);
assertEquals(value, expected);
assertTrue(Iterables.getOnlyElement(rows).getFieldCount() == 1);
}
}