| /* |
| * 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.sql; |
| |
| import org.apache.drill.shaded.guava.com.google.common.base.Function; |
| import org.apache.drill.shaded.guava.com.google.common.collect.Lists; |
| import org.apache.drill.test.BaseTestQuery; |
| import org.apache.drill.categories.SqlTest; |
| import org.apache.drill.common.exceptions.UserRemoteException; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import javax.annotation.Nullable; |
| import java.math.BigDecimal; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import static org.hamcrest.CoreMatchers.containsString; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| @Category(SqlTest.class) |
| public class TestSimpleCastFunctions extends BaseTestQuery { |
| |
| private static final List<Function<String, String>> inputFunctions = Lists.newArrayList(); |
| |
| static { |
| inputFunctions.add(new Function<String, String>() { |
| @Nullable |
| @Override |
| public String apply(String input) { |
| return input.toLowerCase(); |
| } |
| }); |
| |
| inputFunctions.add(new Function<String, String>() { |
| @Nullable |
| @Override |
| public String apply(String input) { |
| return input.toUpperCase(); |
| } |
| }); |
| |
| inputFunctions.add(new Function<String, String>() { |
| @Nullable |
| @Override |
| public String apply(String input) { |
| return " " + input + " "; |
| } |
| }); |
| } |
| |
| @Test |
| public void testCastFromBooleanToString() throws Exception { |
| testBuilder() |
| .sqlQuery("select" + |
| " cast(false as varchar(5)) c1," + |
| " cast(true as varchar(4)) c2," + |
| " cast((1 < 5) as varchar(4)) c3," + |
| " cast((1 > 5) as varchar(5)) c4" + |
| " from (values(1))") |
| .unOrdered() |
| .baselineColumns("c1", "c2", "c3", "c4") |
| .baselineValues("false", "true", "true", "false") |
| .go(); |
| } |
| |
| @Test |
| public void testCastStringToBooleanTrueValue() throws Exception { |
| List<String> literals = Arrays.asList("t", "true", "y", "yes", "on", "1"); |
| String query = "select cast('%s' as boolean) b_val from (values(1))"; |
| for (String literal : literals) { |
| for (Function<String, String> function : inputFunctions) { |
| testBuilder() |
| .sqlQuery(query, function.apply(literal)) |
| .unOrdered() |
| .baselineColumns("b_val") |
| .baselineValues(true) |
| .go(); |
| } |
| } |
| } |
| |
| @Test |
| public void testCastStringToBooleanFalseValue() throws Exception { |
| List<String> literals = Arrays.asList("f", "false", "n", "no", "off", "0"); |
| String query = "select cast('%s' as boolean) b_val from (values(1))"; |
| for (String literal : literals) { |
| for (Function<String, String> function : inputFunctions) { |
| testBuilder() |
| .sqlQuery(query, function.apply(literal)) |
| .unOrdered() |
| .baselineColumns("b_val") |
| .baselineValues(false) |
| .go(); |
| } |
| } |
| } |
| |
| @Test |
| public void testCastNumericToBooleanTrueValue() throws Exception { |
| testBuilder() |
| .sqlQuery("select cast(1 as boolean) b_val from (values(1))") |
| .unOrdered() |
| .baselineColumns("b_val") |
| .baselineValues(true) |
| .go(); |
| } |
| |
| @Test |
| public void testCastNumericToBooleanFalseValue() throws Exception { |
| testBuilder() |
| .sqlQuery("select cast(0 as boolean) b_val from (values(1))") |
| .unOrdered() |
| .baselineColumns("b_val") |
| .baselineValues(false) |
| .go(); |
| } |
| |
| @Test |
| public void testCastNullToBoolean() throws Exception { |
| testBuilder() |
| .sqlQuery("select cast(null as boolean) b_val from (values(1))") |
| .unOrdered() |
| .baselineColumns("b_val") |
| .baselineValues((String) null) |
| .go(); |
| } |
| |
| @Test(expected = UserRemoteException.class) |
| public void testIncorrectStringBoolean() throws Exception { |
| try { |
| test("select cast('A' as boolean) b_val from (values(1))"); |
| } catch (UserRemoteException e) { |
| assertThat(e.getMessage(), containsString("Invalid value for boolean: A")); |
| throw e; |
| } |
| } |
| |
| @Test(expected = UserRemoteException.class) |
| public void testIncorrectNumericBoolean() throws Exception { |
| try { |
| test("select cast(123 as boolean) b_val from (values(1))"); |
| } catch (UserRemoteException e) { |
| assertThat(e.getMessage(), containsString("Invalid value for boolean: 123")); |
| throw e; |
| } |
| } |
| |
| @Test |
| public void testDecimalConstantCast() throws Exception { |
| testBuilder() |
| .sqlQuery("select casthigh(cast(1025.0 as decimal(28,8))) a") |
| .unOrdered() |
| .baselineColumns("a") |
| .baselineValues(BigDecimal.valueOf(102500000000L, 8)) |
| .go(); |
| } |
| |
| @Test |
| public void testNullableDecimalConstantCast() throws Exception { |
| testBuilder() |
| .sqlQuery("select casthigh(case when true then cast(1025.0 as decimal(28,8)) else null end) a") |
| .unOrdered() |
| .baselineColumns("a") |
| .baselineValues(BigDecimal.valueOf(102500000000L, 8)) |
| .go(); |
| |
| } |
| |
| @Test |
| public void testDecimalCastAsVariable() throws Exception { |
| testBuilder() |
| .sqlQuery("select casthigh(cast(a as decimal(28,8))) a from (VALUES (1.0), (2.0), (3.0)) as t1(a)") |
| .unOrdered() |
| .baselineColumns("a") |
| .baselineValues(BigDecimal.valueOf(100000000, 8)) |
| .baselineValues(BigDecimal.valueOf(200000000, 8)) |
| .baselineValues(BigDecimal.valueOf(300000000, 8)) |
| .go(); |
| } |
| |
| } |