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basic conversion service impl; still need super converters, custom converters, and conversion of generic collection elements

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This commit is contained in:
Keith Donald
2009-03-06 23:48:17 +00:00
parent c1f3ec0c5b
commit 3a7b4bf1b0
14 changed files with 1452 additions and 0 deletions
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org.springframework.core/src/test/java/org/springframework/core/convert/service/DefaultConversionServiceTests.java Normal file
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/*
* Copyright 2004-2009 the original author or authors.
*
* 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 org.springframework.core.convert.service;
import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import junit.framework.TestCase;
import org.springframework.core.convert.ConversionExecutor;
import org.springframework.core.convert.ConversionExecutorNotFoundException;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.StringToBoolean;
/**
* Test case for the default conversion service.
*
* @author Keith Donald
*/
public class DefaultConversionServiceTests extends TestCase {
ConversionService service = new DefaultConversionService();
public void testConversionForwardIndex() {
ConversionExecutor<String, Integer> executor = service.getConversionExecutor(String.class, Integer.class);
Integer three = executor.execute("3");
assertEquals(3, three.intValue());
}
public void testConversionReverseIndex() {
ConversionExecutor<Integer, String> executor = service.getConversionExecutor(Integer.class, String.class);
String threeString = executor.execute(new Integer(3));
assertEquals("3", threeString);
}
public void testConversionCompatibleTypes() {
ArrayList source = new ArrayList();
assertSame(source, service.getConversionExecutor(ArrayList.class, List.class).execute(source));
}
public void testConversionOverrideDefaultConverter() {
Converter<String, Boolean> customConverter = new StringToBoolean("ja", "nee");
((GenericConversionService) service).addConverter(customConverter);
ConversionExecutor<String, Boolean> executor = service.getConversionExecutor(String.class, Boolean.class);
assertTrue(executor.execute("ja").booleanValue());
}
public void testConverterLookupTargetClassNotSupported() {
try {
service.getConversionExecutor(String.class, HashMap.class);
fail("Should have thrown an exception");
} catch (ConversionExecutorNotFoundException e) {
}
}
public void testConversionToPrimitive() {
DefaultConversionService service = new DefaultConversionService();
ConversionExecutor executor = service.getConversionExecutor(String.class, int.class);
Integer three = (Integer) executor.execute("3");
assertEquals(3, three.intValue());
}
public void testConversionArrayToArray() {
ConversionExecutor executor = service.getConversionExecutor(String[].class, Integer[].class);
Integer[] result = (Integer[]) executor.execute(new String[] { "1", "2", "3" });
assertEquals(new Integer(1), result[0]);
assertEquals(new Integer(2), result[1]);
assertEquals(new Integer(3), result[2]);
}
public void testConversionArrayToPrimitiveArray() {
ConversionExecutor executor = service.getConversionExecutor(String[].class, int[].class);
int[] result = (int[]) executor.execute(new String[] { "1", "2", "3" });
assertEquals(1, result[0]);
assertEquals(2, result[1]);
assertEquals(3, result[2]);
}
public void testConversionArrayToList() {
ConversionExecutor executor = service.getConversionExecutor(String[].class, List.class);
List result = (List) executor.execute(new String[] { "1", "2", "3" });
assertEquals("1", result.get(0));
assertEquals("2", result.get(1));
assertEquals("3", result.get(2));
}
public void testConversionToArray() {
ConversionExecutor executor = service.getConversionExecutor(Collection.class, String[].class);
List list = new ArrayList();
list.add("1");
list.add("2");
list.add("3");
String[] result = (String[]) executor.execute(list);
assertEquals("1", result[0]);
assertEquals("2", result[1]);
assertEquals("3", result[2]);
}
public void testConversionListToArrayWithComponentConversion() {
ConversionExecutor executor = service.getConversionExecutor(Collection.class, Integer[].class);
List list = new ArrayList();
list.add("1");
list.add("2");
list.add("3");
Integer[] result = (Integer[]) executor.execute(list);
assertEquals(new Integer(1), result[0]);
assertEquals(new Integer(2), result[1]);
assertEquals(new Integer(3), result[2]);
}
public void testConversionArrayToConcreteList() {
ConversionExecutor executor = service.getConversionExecutor(String[].class, LinkedList.class);
LinkedList result = (LinkedList) executor.execute(new String[] { "1", "2", "3" });
assertEquals("1", result.get(0));
assertEquals("2", result.get(1));
assertEquals("3", result.get(2));
}
public void testConversionArrayToAbstractList() {
try {
service.getConversionExecutor(String[].class, AbstractList.class);
} catch (IllegalArgumentException e) {
}
}
public void testConversionStringToArray() {
ConversionExecutor executor = service.getConversionExecutor(String.class, String[].class);
String[] result = (String[]) executor.execute("1,2,3");
assertEquals(1, result.length);
assertEquals("1,2,3", result[0]);
}
public void testConversionStringToArrayWithElementConversion() {
ConversionExecutor executor = service.getConversionExecutor(String.class, Integer[].class);
Integer[] result = (Integer[]) executor.execute("123");
assertEquals(1, result.length);
assertEquals(new Integer(123), result[0]);
}
}