/*
* Copyright 2006-2014 the original author or authors.
*
* Licensed 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.springframework.batch.item;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.Serializable;
import org.junit.Before;
import org.junit.Test;
import org.springframework.util.SerializationUtils;
/**
* @author Lucas Ward
*
*/
public class ExecutionContextTests {
private ExecutionContext context;
@Before
public void setUp() throws Exception {
context = new ExecutionContext();
}
@Test
public void testNormalUsage() {
context.putString("1", "testString1");
context.putString("2", "testString2");
context.putLong("3", 3);
context.putDouble("4", 4.4);
context.putInt("5", 5);
assertEquals("testString1", context.getString("1"));
assertEquals("testString2", context.getString("2"));
assertEquals("defaultString", context.getString("55", "defaultString"));
assertEquals(4.4, context.getDouble("4"), 0);
assertEquals(5.5, context.getDouble("55", 5.5), 0);
assertEquals(3, context.getLong("3"));
assertEquals(5, context.getLong("55", 5));
assertEquals(5, context.getInt("5"));
assertEquals(6, context.getInt("55", 6));
}
@Test
public void testInvalidCast() {
context.putLong("1", 1);
try {
context.getDouble("1");
fail();
}
catch (ClassCastException ex) {
// expected
}
}
@Test
public void testIsEmpty() {
assertTrue(context.isEmpty());
context.putString("1", "test");
assertFalse(context.isEmpty());
}
@Test
public void testDirtyFlag() {
assertFalse(context.isDirty());
context.putString("1", "test");
assertTrue(context.isDirty());
context.clearDirtyFlag();
assertFalse(context.isDirty());
}
@Test
public void testNotDirtyWithDuplicate() {
context.putString("1", "test");
assertTrue(context.isDirty());
context.clearDirtyFlag();
context.putString("1", "test");
assertFalse(context.isDirty());
}
@Test
public void testNotDirtyWithRemoveMissing() {
context.putString("1", "test");
assertTrue(context.isDirty());
context.putString("1", null); // remove an item that was present
assertTrue(context.isDirty());
context.putString("1", null); // remove a non-existent item
assertFalse(context.isDirty());
}
@Test
public void testContains() {
context.putString("1", "testString");
assertTrue(context.containsKey("1"));
assertTrue(context.containsValue("testString"));
}
@Test
public void testEquals() {
context.putString("1", "testString");
ExecutionContext tempContext = new ExecutionContext();
assertFalse(tempContext.equals(context));
tempContext.putString("1", "testString");
assertTrue(tempContext.equals(context));
}
/**
* Putting null value is equivalent to removing the entry for the given key.
*/
@Test
public void testPutNull() {
context.put("1", null);
assertNull(context.get("1"));
assertFalse(context.containsKey("1"));
}
@Test
public void testGetNull() {
assertNull(context.get("does not exist"));
}
@Test
public void testSerialization() {
TestSerializable s = new TestSerializable();
s.value = 7;
context.putString("1", "testString1");
context.putString("2", "testString2");
context.putLong("3", 3);
context.putDouble("4", 4.4);
context.put("5", s);
context.putInt("6", 6);
byte[] serialized = SerializationUtils.serialize(context);
ExecutionContext deserialized = (ExecutionContext) SerializationUtils.deserialize(serialized);
assertEquals(context, deserialized);
assertEquals(7, ((TestSerializable) deserialized.get("5")).value);
}
@Test
public void testCopyConstructor() throws Exception {
ExecutionContext context = new ExecutionContext();
context.put("foo", "bar");
ExecutionContext copy = new ExecutionContext(context);
assertEquals(copy, context);
}
@Test
public void testCopyConstructorNullnNput() throws Exception {
ExecutionContext context = new ExecutionContext((ExecutionContext) null);
assertTrue(context.isEmpty());
}
/**
* Value object for testing serialization
*/
@SuppressWarnings("serial")
private static class TestSerializable implements Serializable {
int value;
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + value;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
TestSerializable other = (TestSerializable) obj;
if (value != other.value) {
return false;
}
return true;
}
}
}