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 /*
  * 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.operator.window;
import static com.facebook.presto.SessionTestUtils.TEST_SESSION;
import static com.google.common.base.Preconditions.checkArgument;
public abstract class AbstractTestWindowFunction
    protected final LocalQueryRunner queryRunner;
    protected AbstractTestWindowFunction()
    {
         = new LocalQueryRunner();
    }
    @AfterClass
    public void tearDown()
    {
        .close();
    }
    protected void assertWindowQuery(@Language("SQL"String sqlMaterializedResult expected)
    {
        WindowAssertions.assertWindowQuery(sqlexpected);
    }
    protected void assertUnboundedWindowQuery(@Language("SQL"String sqlMaterializedResult expected)
    {
        assertWindowQuery(unbounded(sql), expected);
    }
    protected void assertWindowQueryWithNulls(@Language("SQL"String sqlMaterializedResult expected)
    {
        WindowAssertions.assertWindowQueryWithNulls(sqlexpected);
    }
    protected void assertUnboundedWindowQueryWithNulls(@Language("SQL"String sqlMaterializedResult expected)
    {
        assertWindowQueryWithNulls(unbounded(sql), expected);
    }
    @Language("SQL")
    private static String unbounded(@Language("SQL"String sql)
    {
        checkArgument(sql.endsWith(")"), "SQL does not end with ')'");
        return sql.substring(0, sql.length() - 1) + " ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)";
    }
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