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test/org/apache/el/lang/TestELArithmetic.java

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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 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"));
+    }
+}