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/*
* 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.el.lang;
import java.math.BigDecimal;
import java.math.BigInteger;
import javax.el.ELProcessor;
import org.junit.Assert;
import org.junit.Test;
public class TestELArithmetic {
private static final String a = "1.1";
private static final BigInteger b =
new BigInteger("1000000000000000000000");
@Test
public void testAdd01() throws Exception {
Assert.assertEquals("1000000000000000000001.1",
String.valueOf(ELArithmetic.add(a, b)));
}
@Test
public void testAdd02() {
ELProcessor processor = new ELProcessor();
Object result = processor.eval("null + null");
Assert.assertEquals(Long.valueOf(0), result);
}
@Test
public void testSubtract01() throws Exception {
Assert.assertEquals("-999999999999999999998.9",
String.valueOf(ELArithmetic.subtract(a, b)));
}
@Test
public void testSubtract02() {
ELProcessor processor = new ELProcessor();
Object result = processor.eval("null - null");
Assert.assertEquals(Long.valueOf(0), result);
}
@Test
public void testMultiply01() throws Exception {
Assert.assertEquals("1100000000000000000000.0",
String.valueOf(ELArithmetic.multiply(a, b)));
}
@Test
public void testMultiply02() {
ELProcessor processor = new ELProcessor();
Object result = processor.eval("null * null");
Assert.assertEquals(Long.valueOf(0), result);
}
@Test
public void testDivide01() throws Exception {
Assert.assertEquals("0.0",
String.valueOf(ELArithmetic.divide(a, b)));
}
@Test
public void testDivide02() {
ELProcessor processor = new ELProcessor();
Object result = processor.eval("null / null");
Assert.assertEquals(Long.valueOf(0), result);
}
@Test
public void testMod01() throws Exception {
Assert.assertEquals("1.1",
String.valueOf(ELArithmetic.mod(a, b)));
}
@Test
public void testMod02() {
ELProcessor processor = new ELProcessor();
Object result = processor.eval("null % null");
Assert.assertEquals(Long.valueOf(0), result);
}
@Test
public void testMod03() {
ELProcessor processor = new ELProcessor();
// Large so BigInteger rather than Long is used internally
BigInteger result = (BigInteger) processor.eval("1 % -9999999999999999999");
Assert.assertEquals(BigInteger.valueOf(1), result);
}
@Test
public void testUnaryMinus01() {
ELProcessor processor = new ELProcessor();
Object result = processor.eval("-null");
Assert.assertEquals(Long.valueOf(0), result);
}
@Test
public void testBug47371bigDecimal() throws Exception {
Assert.assertEquals(BigDecimal.valueOf(1),
ELArithmetic.add("", BigDecimal.valueOf(1)));
}
@Test
public void testBug47371double() throws Exception {
Assert.assertEquals(Double.valueOf(7), ELArithmetic.add("", Double.valueOf(7)));
}
@Test
public void testBug47371doubleString() throws Exception {
Assert.assertEquals(Double.valueOf(2), ELArithmetic.add("", "2."));
}
@Test
public void testBug47371bigInteger() throws Exception {
Assert.assertEquals(BigInteger.valueOf(0),
ELArithmetic.multiply("", BigInteger.valueOf(1)));
}
@Test
public void testBug47371long() throws Exception {
Assert.assertEquals(Long.valueOf(1), ELArithmetic.add("", Integer.valueOf(1)));
}
@Test
public void testBug47371long2() throws Exception {
Assert.assertEquals(Long.valueOf(-3), ELArithmetic.subtract("1", "4"));
}
@Test
public void testBug47371doubleString2() throws Exception {
Assert.assertEquals(Double.valueOf(2), ELArithmetic.add("1.", "1"));
}
}
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