/*
* 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.type;
import com.facebook.presto.operator.scalar.AbstractTestFunctions;
import org.testng.annotations.Test;
import static com.facebook.presto.spi.type.BooleanType.BOOLEAN;
import static com.facebook.presto.spi.type.RealType.REAL;
import static com.facebook.presto.spi.type.VarcharType.VARCHAR;
public class TestBooleanOperators
extends AbstractTestFunctions
{
@Test
public void testLiteral()
throws Exception
{
assertFunction("true", BOOLEAN, true);
assertFunction("false", BOOLEAN, false);
}
@Test
public void testTypeConstructor()
throws Exception
{
assertFunction("BOOLEAN 'true'", BOOLEAN, true);
assertFunction("BOOLEAN 'false'", BOOLEAN, false);
}
@Test
public void testEqual()
throws Exception
{
assertFunction("true = true", BOOLEAN, true);
assertFunction("true = false", BOOLEAN, false);
assertFunction("false = true", BOOLEAN, false);
assertFunction("false = false", BOOLEAN, true);
}
@Test
public void testNotEqual()
throws Exception
{
assertFunction("true <> true", BOOLEAN, false);
assertFunction("true <> false", BOOLEAN, true);
assertFunction("false <> true", BOOLEAN, true);
assertFunction("false <> false", BOOLEAN, false);
}
@Test
public void testLessThan()
throws Exception
{
assertFunction("true < true", BOOLEAN, false);
assertFunction("true < false", BOOLEAN, false);
assertFunction("false < true", BOOLEAN, true);
assertFunction("false < false", BOOLEAN, false);
}
@Test
public void testLessThanOrEqual()
throws Exception
{
assertFunction("true <= true", BOOLEAN, true);
assertFunction("true <= false", BOOLEAN, false);
assertFunction("false <= true", BOOLEAN, true);
assertFunction("false <= false", BOOLEAN, true);
}
@Test
public void testGreaterThan()
throws Exception
{
assertFunction("true > true", BOOLEAN, false);
assertFunction("true > false", BOOLEAN, true);
assertFunction("false > true", BOOLEAN, false);
assertFunction("false > false", BOOLEAN, false);
}
@Test
public void testGreaterThanOrEqual()
throws Exception
{
assertFunction("true >= true", BOOLEAN, true);
assertFunction("true >= false", BOOLEAN, true);
assertFunction("false >= true", BOOLEAN, false);
assertFunction("false >= false", BOOLEAN, true);
}
@Test
public void testBetween()
throws Exception
{
assertFunction("true BETWEEN true AND true", BOOLEAN, true);
assertFunction("true BETWEEN true AND false", BOOLEAN, false);
assertFunction("true BETWEEN false AND true", BOOLEAN, true);
assertFunction("true BETWEEN false AND false", BOOLEAN, false);
assertFunction("false BETWEEN true AND true", BOOLEAN, false);
assertFunction("false BETWEEN true AND false", BOOLEAN, false);
assertFunction("false BETWEEN false AND true", BOOLEAN, true);
assertFunction("false BETWEEN false AND false", BOOLEAN, true);
}
@Test
public void testCastToReal()
throws Exception
{
assertFunction("cast(true as real)", REAL, 1.0f);
assertFunction("cast(false as real)", REAL, 0.0f);
}
@Test
public void testCastToVarchar()
throws Exception
{
assertFunction("cast(true as varchar)", VARCHAR, "true");
assertFunction("cast(false as varchar)", VARCHAR, "false");
}
@Test
public void testCastFromVarchar()
throws Exception
{
assertFunction("cast('true' as boolean)", BOOLEAN, true);
assertFunction("cast('false' as boolean)", BOOLEAN, false);
}
@Test
public void testIsDistinctFrom()
throws Exception
{
assertFunction("CAST(NULL AS BOOLEAN) IS DISTINCT FROM CAST(NULL AS BOOLEAN)", BOOLEAN, false);
assertFunction("FALSE IS DISTINCT FROM FALSE", BOOLEAN, false);
assertFunction("TRUE IS DISTINCT FROM TRUE", BOOLEAN, false);
assertFunction("FALSE IS DISTINCT FROM TRUE", BOOLEAN, true);
assertFunction("TRUE IS DISTINCT FROM FALSE", BOOLEAN, true);
assertFunction("FALSE IS DISTINCT FROM NULL", BOOLEAN, true);
assertFunction("TRUE IS DISTINCT FROM NULL", BOOLEAN, true);
}
}