393 lines
13 KiB
Java
393 lines
13 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 TestArrayELResolver {
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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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ArrayELResolver resolver = new ArrayELResolver();
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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 not resolved if base is not an array.
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*/
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@Test
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public void testGetType02() {
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doNegativeTest(new Object(), new Object(), MethodUnderTest.GET_TYPE,
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true);
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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 testGetType03() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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Class<?> result = resolver.getType(context, base, Integer.valueOf(0));
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Assert.assertEquals(base.getClass().getComponentType(), result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests that the key is out of bounds and exception will be thrown.
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*/
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@Test(expected = PropertyNotFoundException.class)
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public void testGetType04() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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resolver.getType(context, base, Integer.valueOf(1));
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}
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/**
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* Tests that a result is returned even when a coercion cannot be performed.
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*/
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@Test
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public void testGetType05() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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Class<?> result = resolver.getType(context, base, "index");
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Assert.assertEquals(base.getClass().getComponentType(), 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 testGetValue01() {
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ArrayELResolver resolver = new ArrayELResolver();
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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 not resolved if base is not an array.
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*/
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@Test
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public void testGetValue02() {
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doNegativeTest(new Object(), new Object(), MethodUnderTest.GET_VALUE,
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true);
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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 testGetValue03() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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Object result = resolver.getValue(context, base, Integer.valueOf(0));
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Assert.assertEquals("element", result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests a coercion cannot be performed as the key is not integer.
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*/
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@Test(expected = IllegalArgumentException.class)
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public void testGetValue04() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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resolver.getValue(context, base, "key");
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}
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/**
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* Tests that the key is out of bounds and null will be returned.
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*/
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@Test
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public void testGetValue05() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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Object result = resolver.getValue(context, base, Integer.valueOf(1));
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Assert.assertNull(result);
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Assert.assertTrue(context.isPropertyResolved());
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result = resolver.getValue(context, base, Integer.valueOf(-1));
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Assert.assertNull(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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ArrayELResolver resolver = new ArrayELResolver();
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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 a valid property is not set if base is not an array.
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*/
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@Test
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public void testSetValue02() {
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doNegativeTest(new Object(), new Object(), MethodUnderTest.SET_VALUE,
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false);
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}
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/**
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* Tests that an exception is thrown when readOnly is true.
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*/
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@Test(expected = PropertyNotWritableException.class)
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public void testSetValue03() {
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ArrayELResolver resolver = new ArrayELResolver(true);
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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resolver.setValue(context, new String[] {}, new Object(), new Object());
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}
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/**
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* Tests that a valid property is set.
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*/
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@Test
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public void testSetValue04() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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resolver.setValue(context, base, Integer.valueOf(0), "new-element");
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Assert.assertEquals("new-element",
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resolver.getValue(context, base, Integer.valueOf(0)));
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Assert.assertTrue(context.isPropertyResolved());
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resolver.setValue(context, base, Integer.valueOf(0), null);
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Assert.assertEquals(null,
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resolver.getValue(context, base, Integer.valueOf(0)));
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Assert.assertTrue(context.isPropertyResolved());
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}
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/**
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* Tests a coercion cannot be performed as the key is not integer.
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*/
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@Test(expected = IllegalArgumentException.class)
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public void testSetValue05() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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resolver.setValue(context, base, "key", "new-element");
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}
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/**
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* Tests that the key is out of bounds and exception will be thrown.
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*/
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@Test(expected = PropertyNotFoundException.class)
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public void testSetValue06() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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resolver.setValue(context, base, Integer.valueOf(1), "new-element");
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}
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/**
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* Tests that an exception will be thrown if the value is not from the
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* corresponding type.
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*/
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@Test(expected = ClassCastException.class)
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public void testSetValue07() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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resolver.setValue(context, base, Integer.valueOf(0), Integer.valueOf(1));
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}
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/**
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* Tests setting arrays of primitives.
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* https://bz.apache.org/bugzilla/show_bug.cgi?id=55691
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*/
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@Test
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public void testSetValue08() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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int[] base = new int[] { 1, 2, 3 };
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resolver.setValue(context, base, Integer.valueOf(1), Integer.valueOf(4));
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Assert.assertEquals(Integer.valueOf(base[1]), Integer.valueOf(4));
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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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ArrayELResolver resolver = new ArrayELResolver();
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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 false if base is not an array.
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*/
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@Test
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public void testIsReadOnly02() {
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ArrayELResolver resolver = new ArrayELResolver();
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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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new Object());
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Assert.assertFalse(result);
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Assert.assertFalse(context.isPropertyResolved());
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resolver = new ArrayELResolver(true);
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result = resolver.isReadOnly(context, new Object(), 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 if the ArrayELResolver is constructed with readOnly the method
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* will return always true, otherwise false.
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*/
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@Test
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public void testIsReadOnly03() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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boolean result = resolver.isReadOnly(context, base, Integer.valueOf(0));
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Assert.assertFalse(result);
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Assert.assertTrue(context.isPropertyResolved());
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resolver = new ArrayELResolver(true);
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result = resolver.isReadOnly(context, base, Integer.valueOf(0));
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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 key is out of bounds and exception will be thrown.
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*/
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@Test(expected = PropertyNotFoundException.class)
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public void testIsReadOnly04() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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resolver.isReadOnly(context, base, Integer.valueOf(1));
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}
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/**
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* Tests that a result is returned even when a coercion cannot be performed.
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*/
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@Test
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public void testIsReadOnly05() {
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ArrayELResolver resolver = new ArrayELResolver();
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ELContext context = new StandardELContext(
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ELManager.getExpressionFactory());
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String[] base = new String[] { "element" };
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boolean result = resolver.isReadOnly(context, base, "key");
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Assert.assertFalse(result);
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Assert.assertTrue(context.isPropertyResolved());
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resolver = new ArrayELResolver(true);
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result = resolver.isReadOnly(context, base, "key");
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Assert.assertTrue(result);
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Assert.assertTrue(context.isPropertyResolved());
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}
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private void doNegativeTest(Object base, Object trigger,
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MethodUnderTest method, boolean checkResult) {
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ArrayELResolver resolver = new ArrayELResolver();
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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, base, trigger);
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break;
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}
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case SET_VALUE: {
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resolver.setValue(context, base, trigger, new Object());
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break;
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}
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case GET_TYPE: {
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result = resolver.getType(context, base, trigger);
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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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if (checkResult) {
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Assert.assertNull(result);
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}
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Assert.assertFalse(context.isPropertyResolved());
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}
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private enum MethodUnderTest {
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GET_VALUE, SET_VALUE, GET_TYPE
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}
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}
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