490 lines
15 KiB
Java
490 lines
15 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package javax.el;
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import org.junit.Assert;
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import org.junit.Test;
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public class TestStaticFieldELResolver {
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private static final String PROPERTY01_NAME = "publicStaticString";
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private static final String PROPERTY01_VALUE = "publicStaticStringNewValue";
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private static final String PROPERTY02_NAME = "nonExistingString";
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private static final String PROPERTY03_NAME = "publicString";
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private static final String PROPERTY04_NAME = "privateStaticString";
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private static final String PROPERTY05_NAME = "privateString";
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private static final String METHOD01_NAME = "<init>";
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private static final String METHOD02_NAME = "getPublicStaticString";
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private static final String METHOD03_NAME = "setPrivateString";
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private static final String METHOD04_NAME = "printPublicStaticString";
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/**
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* Tests that a null context results in an NPE as per EL Javadoc.
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*/
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@Test(expected = NullPointerException.class)
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public void testGetValue01() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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resolver.getValue(null, new Object(), new Object());
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}
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/**
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* Tests that a valid property is resolved.
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*/
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@Test
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public void testGetValue02() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Object result = resolver.getValue(context, new ELClass(
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TesterClass.class), PROPERTY01_NAME);
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Assert.assertEquals(PROPERTY01_NAME, result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests that a valid property is not resolved if base is not ELCLass.
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*/
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@Test
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public void testGetValue03() {
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doNegativeTest(new Object(), PROPERTY01_NAME, MethodUnderTest.GET_VALUE);
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}
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/**
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* Tests that non String property is not resolved.
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*/
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@Test
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public void testGetValue04() {
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doNegativeTest(new ELClass(TesterClass.class), new Object(),
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MethodUnderTest.GET_VALUE);
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}
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/**
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* Property doesn't exist
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*/
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@Test
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public void testGetValue05() {
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doThrowableTest(PROPERTY02_NAME, MethodUnderTest.GET_VALUE, true);
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}
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/**
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* Property is not static
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*/
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@Test
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public void testGetValue06() {
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doThrowableTest(PROPERTY03_NAME, MethodUnderTest.GET_VALUE, false);
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}
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/**
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* Property is not public
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*/
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@Test
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public void testGetValue07() {
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doThrowableTest(PROPERTY04_NAME, MethodUnderTest.GET_VALUE, true);
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}
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/**
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* Property is neither public nor static
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*/
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@Test
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public void testGetValue08() {
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doThrowableTest(PROPERTY05_NAME, MethodUnderTest.GET_VALUE, true);
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}
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/**
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* Tests that a valid property of Enum is resolved.
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*/
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@Test
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public void testGetValue09() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Object result = resolver.getValue(context, new ELClass(
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MethodUnderTest.class), MethodUnderTest.GET_TYPE.toString());
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Assert.assertEquals(MethodUnderTest.GET_TYPE, result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests that a null context results in an NPE as per EL Javadoc.
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*/
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@Test(expected = NullPointerException.class)
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public void testSetValue01() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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resolver.setValue(null, new Object(), new Object(), new Object());
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}
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/**
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* Tests that cannot write to a static field.
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*/
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@Test(expected = PropertyNotWritableException.class)
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public void testSetValue02() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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resolver.setValue(context, new ELClass(TesterClass.class),
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PROPERTY01_NAME, PROPERTY01_VALUE);
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}
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/**
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* Tests that the operation is not invoked if base is not ELCLass.
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*/
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@Test
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public void testSetValue03() {
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doNegativeTest(new Object(), PROPERTY01_NAME, MethodUnderTest.SET_VALUE);
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}
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/**
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* Tests that the operation is no invoked when the property is not String.
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*/
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@Test
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public void testSetValue04() {
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doNegativeTest(new ELClass(TesterClass.class), new Object(),
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MethodUnderTest.SET_VALUE);
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}
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/**
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* Tests that a null context results in an NPE as per EL Javadoc.
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*/
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@Test(expected = NullPointerException.class)
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public void testIsReadOnly01() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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resolver.isReadOnly(null, new Object(), new Object());
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}
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/**
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* Tests that the propertyResolved is true when base is ELCLass and the
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* property is String.
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*/
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@Test
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public void testIsReadOnly02() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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boolean result = resolver.isReadOnly(context, new ELClass(
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TesterClass.class), PROPERTY01_NAME);
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Assert.assertTrue(result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests that the propertyResolved is false if base is not ELCLass.
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*/
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@Test
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public void testIsReadOnly03() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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boolean result = resolver.isReadOnly(context, new Object(),
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PROPERTY01_NAME);
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Assert.assertTrue(result);
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Assert.assertFalse(context.isPropertyResolved());
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}
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/**
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* Tests that the propertyResolved is false when the property is not String.
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*/
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@Test
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public void testIsReadOnly04() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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boolean result = resolver.isReadOnly(context, new ELClass(
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TesterClass.class), new Object());
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Assert.assertTrue(result);
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Assert.assertFalse(context.isPropertyResolved());
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}
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/**
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* Tests that a null context results in an NPE as per EL Javadoc.
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*/
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@Test(expected = NullPointerException.class)
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public void testGetType01() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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resolver.getType(null, new Object(), new Object());
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}
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/**
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* Tests that a valid property is resolved.
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*/
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@Test
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public void testGetType02() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Class<?> result = resolver.getType(context, new ELClass(
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TesterClass.class), PROPERTY01_NAME);
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Assert.assertEquals(PROPERTY01_NAME.getClass(), result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests that a valid property is not resolved if base is not ELCLass.
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*/
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@Test
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public void testGetType03() {
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doNegativeTest(new Object(), PROPERTY01_NAME, MethodUnderTest.GET_TYPE);
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}
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/**
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* Tests that non String property is not resolved.
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*/
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@Test
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public void testGetType04() {
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doNegativeTest(new ELClass(TesterClass.class), new Object(),
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MethodUnderTest.GET_TYPE);
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}
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/**
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* Property doesn't exist
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*/
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@Test
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public void testGetType05() {
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doThrowableTest(PROPERTY02_NAME, MethodUnderTest.GET_TYPE, true);
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}
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/**
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* Property is not static
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*/
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@Test
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public void testGetType06() {
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doThrowableTest(PROPERTY03_NAME, MethodUnderTest.GET_TYPE, false);
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}
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/**
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* Property is not public
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*/
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@Test
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public void testGetType07() {
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doThrowableTest(PROPERTY04_NAME, MethodUnderTest.GET_TYPE, true);
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}
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/**
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* Property is neither public nor static
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*/
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@Test
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public void testGetType08() {
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doThrowableTest(PROPERTY05_NAME, MethodUnderTest.GET_TYPE, true);
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}
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/**
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* Tests that a valid property of Enum is resolved.
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*/
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@Test
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public void testGetType09() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Class<?> result = resolver.getType(context, new ELClass(
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MethodUnderTest.class), MethodUnderTest.GET_TYPE.toString());
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Assert.assertEquals(MethodUnderTest.GET_TYPE.getClass(), result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests that a null context results in an NPE as per EL Javadoc.
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*/
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@Test(expected = NullPointerException.class)
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public void testInvoke01() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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resolver.invoke(null, new Object(), new Object(), new Class<?>[] {},
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new Object[] {});
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}
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/**
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* Tests a constructor invocation.
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*/
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@Test
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public void testInvoke02() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Object result = resolver.invoke(context,
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new ELClass(TesterClass.class), METHOD01_NAME, null, null);
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Assert.assertEquals(TesterClass.class, result.getClass());
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests a method invocation.
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*/
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@Test
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public void testInvoke03() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Object result = resolver.invoke(context,
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new ELClass(TesterClass.class), METHOD02_NAME,
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new Class<?>[] {}, new Object[] {});
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Assert.assertEquals(PROPERTY01_NAME, result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests that a valid method is not resolved if base is not ELCLass.
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*/
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@Test
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public void testInvoke04() {
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doNegativeTest(new Object(), METHOD02_NAME, MethodUnderTest.INVOKE);
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}
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/**
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* Tests that non String method name is not resolved.
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*/
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@Test
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public void testInvoke05() {
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doNegativeTest(new ELClass(TesterClass.class), new Object(),
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MethodUnderTest.INVOKE);
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}
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/**
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* Tests that a private constructor invocation will fail.
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*/
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@Test
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public void testInvoke06() {
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doThrowableTest(METHOD01_NAME, MethodUnderTest.INVOKE, false);
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}
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/**
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* Tests that a non static method invocation will fail.
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*/
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@Test
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public void testInvoke07() {
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doThrowableTest(METHOD03_NAME, MethodUnderTest.INVOKE, false);
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}
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/**
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* Tests a void method invocation.
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*/
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@Test
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public void testInvoke08() {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Object result = resolver.invoke(context,
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new ELClass(TesterClass.class), METHOD04_NAME,
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new Class<?>[] {}, new Object[] {});
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Assert.assertNull(result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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private void doNegativeTest(Object elClass, Object trigger,
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MethodUnderTest method) {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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Object result = null;
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switch (method) {
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case GET_VALUE: {
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result = resolver.getValue(context, elClass, trigger);
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break;
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}
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case SET_VALUE: {
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resolver.setValue(context, elClass, trigger, PROPERTY01_VALUE);
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result = resolver.getValue(context, elClass, trigger);
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break;
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}
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case GET_TYPE: {
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result = resolver.getType(context, elClass, trigger);
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break;
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}
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case INVOKE: {
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result = resolver.invoke(context, elClass, trigger,
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new Class<?>[] { String.class }, new Object[] { "test" });
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break;
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}
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default: {
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// Should never happen
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Assert.fail("Missing case for method");
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}
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}
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Assert.assertNull(result);
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Assert.assertFalse(context.isPropertyResolved());
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}
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private void doThrowableTest(String trigger, MethodUnderTest method,
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boolean checkCause) {
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StaticFieldELResolver resolver = new StaticFieldELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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ELException exception = null;
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try {
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switch (method) {
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case GET_VALUE: {
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resolver.getValue(context, new ELClass(TesterClass.class),
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trigger);
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break;
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}
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case GET_TYPE: {
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resolver.getType(context, new ELClass(TesterClass.class),
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trigger);
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break;
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}
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case INVOKE: {
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resolver.invoke(context, new ELClass(TesterClass.class),
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trigger, new Class<?>[] { String.class },
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new Object[] { "test" });
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break;
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}
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default: {
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// Should never happen
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Assert.fail("Missing case for method");
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}
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}
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} catch (PropertyNotFoundException | MethodNotFoundException e) {
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exception = e;
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}
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Assert.assertTrue(context.isPropertyResolved());
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Assert.assertNotNull(exception);
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if (checkCause) {
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// Can't be null due to assertion above
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Throwable cause = exception.getCause();
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Assert.assertNotNull(cause);
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}
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}
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private enum MethodUnderTest {
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GET_VALUE, SET_VALUE, GET_TYPE, INVOKE
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}
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}
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