| package org.apache.maven.plugin.coreit; |
| |
| /* |
| * 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. |
| */ |
| |
| import junit.framework.TestCase; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * @author Benjamin Bentmann |
| * |
| */ |
| public class ExpressionUtilTest |
| extends TestCase |
| { |
| |
| public void testEvaluate() |
| { |
| Object array = new String[]{ "one", "two", "three" }; |
| Object list = Arrays.asList( new String[]{ "0", "-1", "-2" } ); |
| Object map = Collections.singletonMap( "some.key", "value" ); |
| Object bean = new BeanTwo(); |
| |
| Map contexts = new HashMap(); |
| contexts.put( "array", array ); |
| contexts.put( "list", list ); |
| contexts.put( "map", map ); |
| contexts.put( "bean", bean ); |
| |
| assertSame( array, evaluate( "array", contexts ) ); |
| assertSame( array, ExpressionUtil.evaluate( "array/", contexts ).get( "array" ) ); |
| assertSame( list, evaluate( "list", contexts ) ); |
| assertSame( map, evaluate( "map", contexts ) ); |
| assertSame( bean, evaluate( "bean", contexts ) ); |
| assertNull( evaluate( "no-root", contexts ) ); |
| |
| assertEquals( 3, evaluate( "array/length", contexts ) ); |
| assertEquals( "three", evaluate( "array/2", contexts ) ); |
| assertEquals( 5, evaluate( "array/2/length", contexts ) ); |
| assertNull( evaluate( "array/invalid", contexts ) ); |
| assertNull( evaluate( "array/-1", contexts ) ); |
| assertNull( evaluate( "array/999", contexts ) ); |
| assertEquals( 3, ExpressionUtil.evaluate( "array/*", contexts ).size() ); |
| assertEquals( "one", ExpressionUtil.evaluate( "array/*", contexts ).get( "array/0" ) ); |
| assertEquals( "two", ExpressionUtil.evaluate( "array/*", contexts ).get( "array/1" ) ); |
| assertEquals( "three", ExpressionUtil.evaluate( "array/*", contexts ).get( "array/2" ) ); |
| |
| assertEquals( 3, evaluate( "list/size", contexts ) ); |
| assertEquals( "-2", evaluate( "list/2", contexts ) ); |
| assertNull( evaluate( "list/invalid", contexts ) ); |
| assertNull( evaluate( "list/-1", contexts ) ); |
| assertNull( evaluate( "list/999", contexts ) ); |
| assertEquals( 3, ExpressionUtil.evaluate( "list/*", contexts ).size() ); |
| assertEquals( "0", ExpressionUtil.evaluate( "list/*", contexts ).get( "list/0" ) ); |
| assertEquals( "-1", ExpressionUtil.evaluate( "list/*", contexts ).get( "list/1" ) ); |
| assertEquals( "-2", ExpressionUtil.evaluate( "list/*", contexts ).get( "list/2" ) ); |
| |
| assertEquals( 1, evaluate( "map/size", contexts ) ); |
| assertEquals( "value", evaluate( "map/some.key", contexts ) ); |
| assertNull( evaluate( "map/invalid", contexts ) ); |
| |
| assertEquals( "field", evaluate( "bean/field", contexts ) ); |
| assertNull( evaluate( "bean/invalid", contexts ) ); |
| assertEquals( "prop", evaluate( "bean/bean/prop", contexts ) ); |
| assertEquals( "flag", evaluate( "bean/bean/flag", contexts ) ); |
| assertEquals( "arg", evaluate( "bean/bean/arg", contexts ) ); |
| } |
| |
| private static Object evaluate( String expression, Object context ) |
| { |
| return ExpressionUtil.evaluate( expression, context ).get( expression ); |
| } |
| |
| public void testGetProperty() |
| { |
| BeanOne bean1 = new BeanOne(); |
| BeanTwo bean2 = new BeanTwo(); |
| |
| assertEquals( bean1.isFlag(), ExpressionUtil.getProperty( bean1, "flag" ) ); |
| assertEquals( bean1.getProp(), ExpressionUtil.getProperty( bean1, "prop" ) ); |
| assertEquals( bean1.get( "get" ), ExpressionUtil.getProperty( bean1, "get" ) ); |
| |
| assertNull( ExpressionUtil.getProperty( bean2, "invalid" ) ); |
| assertEquals( bean2.field, ExpressionUtil.getProperty( bean2, "field" ) ); |
| assertSame( bean2.bean, ExpressionUtil.getProperty( bean2, "bean" ) ); |
| |
| assertEquals( 0, ExpressionUtil.getProperty( new String[0], "length" ) ); |
| } |
| |
| public static class BeanOne |
| { |
| public String isFlag() |
| { |
| return "flag"; |
| } |
| |
| public String getProp() |
| { |
| return "prop"; |
| } |
| |
| public String get( String arg ) |
| { |
| return arg; |
| } |
| } |
| |
| public static class BeanTwo |
| { |
| public String field = "field"; |
| |
| public BeanOne bean = new BeanOne(); |
| |
| } |
| } |