/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.operation.scalar.cast;
import com.google.common.collect.ImmutableList;
import io.crate.metadata.FunctionIdent;
import io.crate.metadata.Functions;
import io.crate.operation.Input;
import io.crate.operation.scalar.ScalarFunctionModule;
import io.crate.planner.symbol.Function;
import io.crate.planner.symbol.Literal;
import io.crate.planner.symbol.Symbol;
import io.crate.types.ArrayType;
import io.crate.types.DataType;
import io.crate.types.DataTypes;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.inject.ModulesBuilder;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import java.util.Arrays;
import java.util.List;
import static io.crate.testing.TestingHelpers.*;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;
public class ToStringArrayFunctionTest {
private Functions functions;
@Rule
public ExpectedException expectedException = ExpectedException.none();
@Before
public void setUp() {
functions = new ModulesBuilder()
.add(new ScalarFunctionModule()).createInjector().getInstance(Functions.class);
}
@Test
public void testNormalize() throws Exception {
List<Symbol> arguments = Arrays.<Symbol>asList(
Literal.newLiteral(new Integer[]{ 1, 2, 3 }, new ArrayType(DataTypes.INTEGER))
);
BytesRef[] expected = new BytesRef[]{ new BytesRef("1"), new BytesRef("2"), new BytesRef("3") };
Function function = createFunction(ToStringArrayFunction.NAME, new ArrayType(DataTypes.STRING), arguments);
ToStringArrayFunction arrayFunction = (ToStringArrayFunction) functions.get(function.info().ident());
Symbol result = arrayFunction.normalizeSymbol(function);
assertLiteralSymbol(result, expected, new ArrayType(DataTypes.STRING));
arguments.set(0, Literal.newLiteral(new Float[]{ 1.0f, 2.0f, 3.0f }, new ArrayType(DataTypes.FLOAT)));
expected = new BytesRef[]{ new BytesRef("1.0"), new BytesRef("2.0"), new BytesRef("3.0") };
function = createFunction(ToStringArrayFunction.NAME, new ArrayType(DataTypes.STRING), arguments);
arrayFunction = (ToStringArrayFunction) functions.get(function.info().ident());
result = arrayFunction.normalizeSymbol(function);
assertLiteralSymbol(result, expected, new ArrayType(DataTypes.STRING));
}
@Test
public void testEvaluate() throws Exception {
List<Symbol> arguments = Arrays.<Symbol>asList(
createReference("int_array", new ArrayType(DataTypes.INTEGER))
);
Object[] expected = new BytesRef[]{ new BytesRef("1"), new BytesRef("2"), new BytesRef("3") };
Function function = createFunction(ToStringArrayFunction.NAME, new ArrayType(DataTypes.STRING), arguments);
ToStringArrayFunction arrayFunction = (ToStringArrayFunction) functions.get(function.info().ident());
Input[] args = new Input[1];
args[0] = new Input<Object>() {
@Override
public Object value() {
return new Integer[]{ 1, 2, 3 };
}
};
Object[] result = arrayFunction.evaluate(args);
assertThat(result, is(expected));
}
@Test
public void testInvalidArgumentType() throws Exception {
expectedException.expect(IllegalArgumentException.class);
expectedException.expectMessage("Argument must be a collection type");
functions.get(new FunctionIdent(ToStringArrayFunction.NAME, ImmutableList.<DataType>of(DataTypes.STRING)));
}
@Test
public void testInvalidArgumentInnerType() throws Exception {
expectedException.expect(IllegalArgumentException.class);
expectedException.expectMessage("Array inner type 'object' not supported for conversion");
functions.get(new FunctionIdent(ToStringArrayFunction.NAME, ImmutableList.<DataType>of(new ArrayType(DataTypes.OBJECT))));
}
}