| /* |
| * 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 javax.el; |
| |
| import java.beans.FeatureDescriptor; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class TestMapELResolver { |
| |
| /** |
| * Tests that a null context results in an NPE as per EL Javadoc. |
| */ |
| @Test(expected = NullPointerException.class) |
| public void testGetType01() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| mapELResolver.getType(null, new Object(), new Object()); |
| } |
| |
| /** |
| * Tests that a valid property is not resolved if base is not Map. |
| */ |
| @Test |
| public void testGetType02() { |
| doNegativeTest(new Object(), new Object(), MethodUnderTest.GET_TYPE, |
| true); |
| } |
| |
| /** |
| * Tests that a valid property is resolved. |
| */ |
| @Test |
| public void testGetType03() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Class<?> result = mapELResolver.getType(context, new HashMap<>(), |
| "test"); |
| |
| Assert.assertEquals(Object.class, result); |
| Assert.assertTrue(context.isPropertyResolved()); |
| } |
| |
| /** |
| * Tests that a null context results in an NPE as per EL Javadoc. |
| */ |
| @Test(expected = NullPointerException.class) |
| public void testGetValue01() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| mapELResolver.getValue(null, new Object(), new Object()); |
| } |
| |
| /** |
| * Tests that a valid property is not resolved if base is not Map. |
| */ |
| @Test |
| public void testGetValue02() { |
| doNegativeTest(new Object(), new Object(), MethodUnderTest.GET_VALUE, |
| true); |
| } |
| |
| /** |
| * Tests that a valid property is resolved. |
| */ |
| @Test |
| public void testGetValue03() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Map<String, String> map = new HashMap<>(); |
| map.put("key", "value"); |
| Object result = mapELResolver.getValue(context, map, "key"); |
| |
| Assert.assertEquals("value", result); |
| Assert.assertTrue(context.isPropertyResolved()); |
| |
| result = mapELResolver.getValue(context, map, "unknown-key"); |
| |
| Assert.assertNull(result); |
| Assert.assertTrue(context.isPropertyResolved()); |
| } |
| |
| /** |
| * Tests that a null context results in an NPE as per EL Javadoc. |
| */ |
| @Test(expected = NullPointerException.class) |
| public void testSetValue01() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| mapELResolver.setValue(null, new Object(), new Object(), new Object()); |
| } |
| |
| /** |
| * Tests that a valid property is not set if base is not Map. |
| */ |
| @Test |
| public void testSetValue02() { |
| doNegativeTest(new Object(), new Object(), MethodUnderTest.SET_VALUE, |
| false); |
| } |
| |
| /** |
| * Tests that an exception is thrown when readOnly is true. |
| */ |
| @Test(expected = PropertyNotWritableException.class) |
| public void testSetValue03() { |
| MapELResolver mapELResolver = new MapELResolver(true); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| mapELResolver.setValue(context, new HashMap<>(), new Object(), |
| new Object()); |
| } |
| |
| /** |
| * Tests that a valid property is set. |
| */ |
| @Test |
| public void testSetValue04() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Map<String, String> map = new HashMap<>(); |
| mapELResolver.setValue(context, map, "key", "value"); |
| |
| Assert.assertEquals("value", |
| mapELResolver.getValue(context, map, "key")); |
| Assert.assertTrue(context.isPropertyResolved()); |
| } |
| |
| /** |
| * Tests that an exception is thrown when the map is not modifiable. |
| */ |
| @Test(expected = PropertyNotWritableException.class) |
| public void testSetValue05() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Map<Object, Object> map = Collections.unmodifiableMap(new HashMap<>()); |
| mapELResolver.setValue(context, map, "key", "value"); |
| } |
| |
| /** |
| * Tests that a null context results in an NPE as per EL Javadoc. |
| */ |
| @Test(expected = NullPointerException.class) |
| public void testIsReadOnly01() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| mapELResolver.isReadOnly(null, new Object(), new Object()); |
| } |
| |
| /** |
| * Tests that the propertyResolved is false if base is not Map. |
| */ |
| @Test |
| public void testIsReadOnly02() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| boolean result = mapELResolver.isReadOnly(context, new Object(), |
| new Object()); |
| |
| Assert.assertFalse(result); |
| Assert.assertFalse(context.isPropertyResolved()); |
| |
| mapELResolver = new MapELResolver(true); |
| |
| result = mapELResolver.isReadOnly(context, new Object(), new Object()); |
| |
| Assert.assertTrue(result); |
| Assert.assertFalse(context.isPropertyResolved()); |
| } |
| |
| /** |
| * Tests that if the MapELResolver is constructed with readOnly the method |
| * will return always true, otherwise false. |
| */ |
| @Test |
| public void testIsReadOnly03() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| boolean result = mapELResolver.isReadOnly(context, new HashMap<>(), |
| new Object()); |
| |
| Assert.assertFalse(result); |
| Assert.assertTrue(context.isPropertyResolved()); |
| |
| mapELResolver = new MapELResolver(true); |
| |
| result = mapELResolver.isReadOnly(context, new HashMap<>(), |
| new Object()); |
| |
| Assert.assertTrue(result); |
| Assert.assertTrue(context.isPropertyResolved()); |
| } |
| |
| /** |
| * Tests that the readOnly is true always when the map is not modifiable. |
| */ |
| @Test |
| public void testIsReadOnly04() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Map<Object, Object> map = Collections.unmodifiableMap(new HashMap<>()); |
| boolean result = mapELResolver.isReadOnly(context, map, new Object()); |
| |
| Assert.assertTrue(result); |
| Assert.assertTrue(context.isPropertyResolved()); |
| } |
| |
| /** |
| * Tests that a valid FeatureDescriptors are not returned if base is not |
| * Map. |
| */ |
| @Test |
| public void testGetFeatureDescriptors01() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Iterator<FeatureDescriptor> result = mapELResolver |
| .getFeatureDescriptors(context, new Object()); |
| |
| Assert.assertNull(result); |
| } |
| |
| /** |
| * Tests that a valid FeatureDescriptors are returned. |
| */ |
| @Test |
| public void testGetFeatureDescriptors02() { |
| MapELResolver mapELResolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Map<String, String> map = new HashMap<>(); |
| map.put("key", "value"); |
| Iterator<FeatureDescriptor> result = mapELResolver |
| .getFeatureDescriptors(context, map); |
| |
| while (result.hasNext()) { |
| FeatureDescriptor featureDescriptor = result.next(); |
| Assert.assertEquals("key", featureDescriptor.getDisplayName()); |
| Assert.assertEquals("key", featureDescriptor.getName()); |
| Assert.assertEquals("", featureDescriptor.getShortDescription()); |
| Assert.assertFalse(featureDescriptor.isExpert()); |
| Assert.assertFalse(featureDescriptor.isHidden()); |
| Assert.assertTrue(featureDescriptor.isPreferred()); |
| Assert.assertEquals("key".getClass(), |
| featureDescriptor.getValue(ELResolver.TYPE)); |
| Assert.assertEquals(Boolean.TRUE, featureDescriptor |
| .getValue(ELResolver.RESOLVABLE_AT_DESIGN_TIME)); |
| } |
| } |
| |
| private void doNegativeTest(Object base, Object trigger, |
| MethodUnderTest method, boolean checkResult) { |
| MapELResolver resolver = new MapELResolver(); |
| ELContext context = new StandardELContext( |
| ELManager.getExpressionFactory()); |
| |
| Object result = null; |
| switch (method) { |
| case GET_VALUE: { |
| result = resolver.getValue(context, base, trigger); |
| break; |
| } |
| case SET_VALUE: { |
| resolver.setValue(context, base, trigger, new Object()); |
| break; |
| } |
| case GET_TYPE: { |
| result = resolver.getType(context, base, trigger); |
| break; |
| } |
| default: { |
| // Should never happen |
| Assert.fail("Missing case for method"); |
| } |
| } |
| |
| if (checkResult) { |
| Assert.assertNull(result); |
| } |
| Assert.assertFalse(context.isPropertyResolved()); |
| } |
| |
| private static enum MethodUnderTest { |
| GET_VALUE, SET_VALUE, GET_TYPE |
| } |
| } |