| /* |
| * 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.commons.jexl2; |
| |
| |
| /** |
| * Test cases for the if statement. |
| * |
| * @author Dion Gillard |
| * @since 1.1 |
| */ |
| public class IfTest extends JexlTestCase { |
| |
| public IfTest(String testName) { |
| super(testName); |
| } |
| |
| /** |
| * Make sure if true executes the true statement |
| * |
| * @throws Exception on any error |
| */ |
| public void testSimpleIfTrue() throws Exception { |
| Expression e = JEXL.createExpression("if (true) 1"); |
| JexlContext jc = new MapContext(); |
| |
| Object o = e.evaluate(jc); |
| assertEquals("Result is not 1", new Integer(1), o); |
| } |
| |
| /** |
| * Make sure if false doesn't execute the true statement |
| * |
| * @throws Exception on any error |
| */ |
| public void testSimpleIfFalse() throws Exception { |
| Expression e = JEXL.createExpression("if (false) 1"); |
| JexlContext jc = new MapContext(); |
| |
| Object o = e.evaluate(jc); |
| assertNull("Return value is not empty", o); |
| } |
| |
| /** |
| * Make sure if false executes the false statement |
| * |
| * @throws Exception on any error |
| */ |
| public void testSimpleElse() throws Exception { |
| Expression e = JEXL |
| .createExpression("if (false) 1 else 2;"); |
| JexlContext jc = new MapContext(); |
| |
| Object o = e.evaluate(jc); |
| assertEquals("Result is not 2", new Integer(2), o); |
| } |
| |
| /** |
| * Test the if statement handles blocks correctly |
| * |
| * @throws Exception on any error |
| */ |
| public void testBlockIfTrue() throws Exception { |
| Expression e = JEXL |
| .createExpression("if (true) { 'hello'; }"); |
| JexlContext jc = new MapContext(); |
| |
| Object o = e.evaluate(jc); |
| assertEquals("Result is wrong", "hello", o); |
| } |
| |
| /** |
| * Test the if statement handles blocks in the else statement correctly |
| * |
| * @throws Exception on any error |
| */ |
| public void testBlockElse() throws Exception { |
| Expression e = JEXL |
| .createExpression("if (false) {1} else {2 ; 3}"); |
| JexlContext jc = new MapContext(); |
| |
| Object o = e.evaluate(jc); |
| assertEquals("Result is wrong", new Integer(3), o); |
| } |
| |
| /** |
| * Test the if statement evaluates expressions correctly |
| * |
| * @throws Exception on any error |
| */ |
| public void testIfWithSimpleExpression() throws Exception { |
| Expression e = JEXL |
| .createExpression("if (x == 1) true;"); |
| JexlContext jc = new MapContext(); |
| jc.set("x", new Integer(1)); |
| |
| Object o = e.evaluate(jc); |
| assertEquals("Result is not true", Boolean.TRUE, o); |
| } |
| |
| /** |
| * Test the if statement evaluates arithmetic expressions correctly |
| * |
| * @throws Exception on any error |
| */ |
| public void testIfWithArithmeticExpression() throws Exception { |
| Expression e = JEXL |
| .createExpression("if ((x * 2) + 1 == 5) true;"); |
| JexlContext jc = new MapContext(); |
| jc.set("x", new Integer(2)); |
| |
| Object o = e.evaluate(jc); |
| assertEquals("Result is not true", Boolean.TRUE, o); |
| } |
| |
| /** |
| * Test the if statement evaluates decimal arithmetic expressions correctly |
| * |
| * @throws Exception on any error |
| */ |
| public void testIfWithDecimalArithmeticExpression() throws Exception { |
| Expression e = JEXL |
| .createExpression("if ((x * 2) == 5) true"); |
| JexlContext jc = new MapContext(); |
| jc.set("x", new Float(2.5f)); |
| |
| Object o = e.evaluate(jc); |
| assertEquals("Result is not true", Boolean.TRUE, o); |
| } |
| |
| /** |
| * Test the if statement works with assignment |
| * |
| * @throws Exception on any error |
| */ |
| public void testIfWithAssignment() throws Exception { |
| Expression e = JEXL |
| .createExpression("if ((x * 2) == 5) {y = 1} else {y = 2;}"); |
| JexlContext jc = new MapContext(); |
| jc.set("x", new Float(2.5f)); |
| |
| e.evaluate(jc); |
| Object result = jc.get("y"); |
| assertEquals("y has the wrong value", new Integer(1), result); |
| } |
| |
| /** |
| * Ternary operator condition undefined or null evaluates to false |
| * independantly of engine flags. |
| * @throws Exception |
| */ |
| public void testTernary() throws Exception { |
| JexlEngine jexl = new JexlEngine(); |
| jexl.setCache(64); |
| JexlContext jc = new MapContext(); |
| Expression e = jexl.createExpression("x.y.z = foo ?'bar':'quux'"); |
| Object o; |
| |
| // undefined foo |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be quux", "quux", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be quux", "quux", o); |
| } |
| |
| jc.set("foo", null); |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be quux", "quux", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be quux", "quux", o); |
| } |
| |
| jc.set("foo",Boolean.FALSE); |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be quux", "quux", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be quux", "quux", o); |
| } |
| |
| jc.set("foo",Boolean.TRUE); |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be bar", "bar", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be bar", "bar", o); |
| } |
| |
| debuggerCheck(jexl); |
| } |
| |
| /** |
| * Ternary operator condition undefined or null evaluates to false |
| * independantly of engine flags. |
| * @throws Exception |
| */ |
| public void testTernaryShorthand() throws Exception { |
| JexlEngine jexl = new JexlEngine(); |
| jexl.setCache(64); |
| JexlContext jc = new MapContext(); |
| Expression e = JEXL.createExpression("x.y.z = foo?:'quux'"); |
| Object o; |
| |
| // undefined foo |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be quux", "quux", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be quux", "quux", o); |
| } |
| |
| jc.set("foo", null); |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be quux", "quux", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be quux", "quux", o); |
| } |
| |
| jc.set("foo", Boolean.FALSE); |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be quux", "quux", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be quux", "quux", o); |
| } |
| |
| jc.set("foo","bar"); |
| |
| for(int l = 0; l < 4; ++l) { |
| jexl.setLenient((l & 1) != 0); |
| jexl.setSilent((l & 2) != 0); |
| o = e.evaluate(jc); |
| assertEquals("Should be bar", "bar", o); |
| o = jc.get("x.y.z"); |
| assertEquals("Should be bar", "bar", o); |
| } |
| |
| debuggerCheck(jexl); |
| } |
| } |