| /* |
| * 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 |
| * 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 org.apache.drill.exec.udfs; |
| |
| import org.apache.drill.test.ClusterFixture; |
| import org.apache.drill.test.ClusterFixtureBuilder; |
| import org.apache.drill.test.ClusterTest; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| public class TestDistributionFunctions extends ClusterTest { |
| |
| @BeforeClass |
| public static void setup() throws Exception { |
| ClusterFixtureBuilder builder = ClusterFixture.builder(dirTestWatcher); |
| startCluster(builder); |
| } |
| |
| @Test |
| public void testWidthBucket() throws Exception { |
| // Test with float input |
| String query = "SELECT width_bucket(5.35, 0,10,5) AS bucket FROM (VALUES(1))"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("bucket") |
| .baselineValues(3) |
| .go(); |
| |
| // Test with int input |
| query = "SELECT width_bucket(2, 0,10,5) AS bucket FROM (VALUES(1))"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("bucket") |
| .baselineValues(2) |
| .go(); |
| |
| // Test with string input |
| query = "SELECT width_bucket('9', 0,10,5) AS bucket FROM (VALUES(1))"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("bucket") |
| .baselineValues(5) |
| .go(); |
| |
| // Test with input out of range |
| query = "SELECT width_bucket(-5, 0,10,5) AS too_low_bucket, width_bucket(505, 0,10,5) AS too_high_bucket FROM (VALUES(1))"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("too_low_bucket", "too_high_bucket") |
| .baselineValues(0, 6) |
| .go(); |
| |
| } |
| |
| @Test |
| public void testKendall() throws Exception { |
| String query = "SELECT kendall_correlation(col1,col2) AS R FROM cp.`test_data.csvh`"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("R") |
| .baselineValues(0.16666666666666666) |
| .go(); |
| |
| } |
| |
| @Test |
| public void testRegrSlope() throws Exception { |
| String query = "SELECT regr_slope(spend,sales) AS slope FROM cp.`regr_test.csvh`"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("slope") |
| .baselineValues(10.619633290847284) |
| .go(); |
| } |
| |
| @Test |
| public void testRegrIntercept() throws Exception { |
| String query = "SELECT regr_intercept(spend,sales) AS intercept FROM cp.`regr_test.csvh`"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("intercept") |
| .baselineValues(1400.2322223740048) |
| .go(); |
| } |
| |
| @Test |
| public void testPercentChange() throws Exception { |
| String query = "SELECT percent_change(100, 150) as delta"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("delta") |
| .baselineValues(50.0) |
| .go(); |
| |
| query = "SELECT percent_change(200, 100) as delta"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("delta") |
| .baselineValues(-50.0) |
| .go(); |
| |
| query = "SELECT percent_change(200, null) as delta"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("delta") |
| .baselineValues(null) |
| .go(); |
| |
| query = "SELECT percent_change(null, null) as delta"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("delta") |
| .baselineValues(null) |
| .go(); |
| |
| query = "SELECT percent_change(null, 200) as delta"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("delta") |
| .baselineValues(null) |
| .go(); |
| |
| query = "SELECT percent_change(200, 0) as delta"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("delta") |
| .baselineValues(0.0) |
| .go(); |
| |
| query = "SELECT percent_change(0, 34) as delta"; |
| testBuilder() |
| .sqlQuery(query) |
| .unOrdered() |
| .baselineColumns("delta") |
| .baselineValues(0.0) |
| .go(); |
| } |
| } |