| // @@@ START COPYRIGHT @@@ |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
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| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
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| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
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| // under the License. |
| // |
| // @@@ END COPYRIGHT @@@ |
| |
| /******************************************************************************* |
| * Copyright (c) 2013, Salesforce.com, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * Neither the name of Salesforce.com nor the names of its contributors may |
| * be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| ******************************************************************************/ |
| package test.java.org.trafodion.phoenix.end2end; |
| |
| import static org.junit.Assert.*; |
| import org.junit.*; |
| import java.math.*; |
| import java.sql.*; |
| import java.util.*; |
| |
| |
| public class StddevTest extends BaseTest { |
| |
| @BeforeClass |
| public static void doTestSuiteSetup() throws Exception { |
| /* List all of the object names being used in this entire class. |
| * The objects are dropped with errors ignored, so it is OK if the |
| * object does not exist for a particular test. |
| */ |
| objDropList = new ArrayList<String>( |
| Arrays.asList("table " + ATABLE_NAME)); |
| doBaseTestSuiteSetup(); |
| } |
| /* @AfterClass, @Before, @After are defined in BaseTest */ |
| |
| @Test |
| public void testSTDDEV_POP() throws Exception { |
| printTestDescription(); |
| |
| initATableValues(); |
| |
| String query = null; |
| if (tgtPH()) query = "SELECT STDDEV_POP(A_INTEGER) FROM aTable"; |
| else if (tgtSQ()||tgtTR()) query = "SELECT STDDEV(A_INTEGER) FROM aTable"; |
| try { |
| PreparedStatement statement = conn.prepareStatement(query); |
| ResultSet rs = statement.executeQuery(); |
| assertTrue(rs.next()); |
| BigDecimal stddev = rs.getBigDecimal(1); |
| stddev = stddev.setScale(1, RoundingMode.HALF_UP); |
| if (tgtPH()) assertEquals(2.6, stddev.doubleValue(),0.0); |
| else if (tgtSQ()||tgtTR()) assertEquals(2.7, stddev.doubleValue(),0.0); |
| assertFalse(rs.next()); |
| } finally { |
| } |
| } |
| |
| @Test |
| public void testSTDDEV_SAMP() throws Exception { |
| printTestDescription(); |
| |
| initATableValues(); |
| |
| String query = null; |
| if (tgtPH()) query = "SELECT STDDEV_SAMP(x_decimal) FROM aTable"; |
| else if (tgtSQ()||tgtTR()) query = "SELECT STDDEV(DISTINCT x_decimal) FROM aTable"; |
| try { |
| PreparedStatement statement = conn.prepareStatement(query); |
| ResultSet rs = statement.executeQuery(); |
| assertTrue(rs.next()); |
| BigDecimal stddev = rs.getBigDecimal(1); |
| stddev = stddev.setScale(1, RoundingMode.HALF_UP); |
| assertEquals(2.0, stddev.doubleValue(),0.0); |
| assertFalse(rs.next()); |
| } finally { |
| } |
| } |
| |
| } |