/*
* Copyright 2002-2014 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.expression.spel.support;
import java.util.List;
import org.junit.Test;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.expression.EvaluationException;
import org.springframework.expression.Operation;
import org.springframework.expression.OperatorOverloader;
import org.springframework.expression.TypeComparator;
import org.springframework.expression.TypeConverter;
import org.springframework.expression.TypeLocator;
import static org.junit.Assert.*;
public class StandardComponentsTests {
@Test
public void testStandardEvaluationContext() {
StandardEvaluationContext context = new StandardEvaluationContext();
assertNotNull(context.getTypeComparator());
TypeComparator tc = new StandardTypeComparator();
context.setTypeComparator(tc);
assertEquals(tc, context.getTypeComparator());
TypeLocator tl = new StandardTypeLocator();
context.setTypeLocator(tl);
assertEquals(tl, context.getTypeLocator());
}
@Test(expected = EvaluationException.class)
public void testStandardOperatorOverloader() throws EvaluationException {
OperatorOverloader oo = new StandardOperatorOverloader();
assertFalse(oo.overridesOperation(Operation.ADD, null, null));
oo.operate(Operation.ADD, 2, 3);
}
@Test
public void testStandardTypeLocator() {
StandardTypeLocator tl = new StandardTypeLocator();
List<String> prefixes = tl.getImportPrefixes();
assertEquals(1, prefixes.size());
tl.registerImport("java.util");
prefixes = tl.getImportPrefixes();
assertEquals(2, prefixes.size());
tl.removeImport("java.util");
prefixes = tl.getImportPrefixes();
assertEquals(1, prefixes.size());
}
@Test
public void testStandardTypeConverter() throws EvaluationException {
TypeConverter tc = new StandardTypeConverter();
tc.convertValue(3, TypeDescriptor.forObject(3), TypeDescriptor.valueOf(Double.class));
}
}