/*
* Copyright 2013 Robert von Burg <eitch@eitchnet.ch>
*
* 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 li.strolch.utils.objectfilter;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.util.List;
import org.junit.Test;
import li.strolch.utils.objectfilter.ObjectFilter;
/**
* @author Robert von Burg <eitch@eitchnet.ch>
*/
@SuppressWarnings("nls")
public class ObjectFilterTest {
@Test
public void shouldAdd() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj);
testAssertions(filter, 1, 1, 1, 0, 0);
}
@Test
public void shouldUpdate() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.update(myObj);
testAssertions(filter, 1, 1, 0, 1, 0);
}
@Test
public void shouldRemove() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.remove(myObj);
testAssertions(filter, 1, 1, 0, 0, 1);
}
@Test
public void shouldAddUpdateRemoveDifferentObjects() {
Object objToAdd = new Object();
Object objToUpdate = new Object();
Object objToRemove = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(objToAdd);
filter.update(objToUpdate);
filter.remove(objToRemove);
testAssertions(filter, 3, 1, 1, 1, 1);
}
@Test
public void shouldAddUpdateRemoveSameObject() {
Object objToAddUpdateRemove = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(objToAddUpdateRemove);
filter.update(objToAddUpdateRemove);
filter.remove(objToAddUpdateRemove);
testAssertions(filter, 0, 1, 0, 0, 0);
}
@Test
public void shouldNotAddTwice() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj);
try {
filter.add(myObj);
fail("Should have failed adding twice!");
} catch (RuntimeException e) {
assertEquals("Stale State exception: Invalid + after +", e.getMessage());
}
testAssertions(filter, 1, 1, 1, 0, 0);
}
@Test
public void shouldNotRemoveTwice() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.remove(myObj);
try {
filter.remove(myObj);
fail("Should have failed removing twice!");
} catch (RuntimeException e) {
assertEquals("Stale State exception: Invalid - after -", e.getMessage());
}
testAssertions(filter, 1, 1, 0, 0, 1);
}
@Test
public void shouldAcceptUpdateTwice() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.update(myObj);
filter.update(myObj);
testAssertions(filter, 1, 1, 0, 1, 0);
}
@Test
public void shouldStillBeAddWithUpdate() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj);
filter.update(myObj);
filter.update(myObj);
testAssertions(filter, 1, 1, 1, 0, 0);
}
@Test
public void shouldNotAcceptAddAfterModify() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.update(myObj);
try {
filter.add(myObj);
fail("Should have failed add after modify");
} catch (RuntimeException e) {
assertEquals("Stale State exception: Invalid + after +=", e.getMessage());
}
testAssertions(filter, 1, 1, 0, 1, 0);
}
@Test
public void shouldAcceptAddAfterRemove() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.remove(myObj);
filter.add(myObj);
testAssertions(filter, 1, 1, 0, 1, 0);
}
@Test
public void shouldNotAcceptModifyAfterRemove() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.remove(myObj);
try {
filter.update(myObj);
fail("Should have failed modify after remove");
} catch (RuntimeException e) {
assertEquals("Stale State exception: Invalid += after -", e.getMessage());
}
testAssertions(filter, 1, 1, 0, 0, 1);
}
@Test
public void shouldNotAcceptDifferentKeyForSameObject() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj);
try {
filter.update("different_key", myObj);
fail("Should have failed because of different key for already registered object");
} catch (RuntimeException e) {
String msg = "Object may be present in the same filter instance only once, registered using one key only";
assertTrue("Encountered exception: " + e.getMessage(), e.getMessage().contains(msg));
}
testAssertions(filter, 1, 1, 1, 0, 0);
}
@Test
public void shouldReplaceOnAddAfterRemove() {
TestObject obj1 = new TestObject(1);
TestObject obj2 = new TestObject(1);
assertEquals("Test objects are not equal!", obj1, obj2);
ObjectFilter filter = new ObjectFilter();
filter.remove(Object.class.getName(), obj1);
filter.add(Object.class.getName(), obj2);
testAssertions(filter, 1, 1, 0, 1, 0);
List<Object> updated = filter.getUpdated(Object.class.getName());
Object updatedObj = updated.get(0);
String msg = "registered object is not the last operation's object";
assertTrue(msg, obj2 == updatedObj);
}
@Test
public void shouldReplaceOnUpdateAfterAdd() {
TestObject obj1 = new TestObject(1);
TestObject obj2 = new TestObject(1);
assertEquals("Test objects are not equal!", obj1, obj2);
ObjectFilter filter = new ObjectFilter();
filter.add(Object.class.getName(), obj1);
filter.update(Object.class.getName(), obj2);
testAssertions(filter, 1, 1, 1, 0, 0);
List<Object> added = filter.getAdded(Object.class.getName());
Object addedObj = added.get(0);
String msg = "registered object is not the last operation's object";
assertTrue(msg, obj2 == addedObj);
}
@Test
public void shouldReplaceOnUpdateAfterUpdate() {
TestObject obj1 = new TestObject(1);
TestObject obj2 = new TestObject(1);
assertEquals("Test objects are not equal!", obj1, obj2);
ObjectFilter filter = new ObjectFilter();
filter.update(Object.class.getName(), obj1);
filter.update(Object.class.getName(), obj2);
testAssertions(filter, 1, 1, 0, 1, 0);
List<Object> updated = filter.getUpdated(Object.class.getName());
Object updatedObj = updated.get(0);
String msg = "registered object is not the last operation's object";
assertTrue(msg, obj2 == updatedObj);
}
@Test
public void shouldReplaceOnRemoveAfterModify() {
TestObject obj1 = new TestObject(1);
TestObject obj2 = new TestObject(1);
assertEquals("Test objects are not equal!", obj1, obj2);
ObjectFilter filter = new ObjectFilter();
filter.update(Object.class.getName(), obj1);
filter.remove(Object.class.getName(), obj2);
testAssertions(filter, 1, 1, 0, 0, 1);
List<Object> removed = filter.getRemoved(Object.class.getName());
Object removedObj = removed.get(0);
String msg = "registered object is not the last operation's object";
assertTrue(msg, obj2 == removedObj);
}
@Test
public void shouldRemoveAfterAddAndRemove() {
Object myObj = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj);
filter.remove(myObj);
testAssertions(filter, 0, 1, 0, 0, 0);
}
@Test
public void shouldClear() {
Object myObj1 = new Object();
Object myObj2 = new Object();
Object myObj3 = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj1);
filter.update(myObj2);
filter.remove(myObj3);
filter.clearCache();
testAssertions(filter, 0, 0, 0, 0, 0);
}
@Test
public void shouldGetAll() {
Object myObj1 = new Object();
Object myObj2 = new Object();
Object myObj3 = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj1);
filter.update(myObj2);
filter.remove(myObj3);
testAssertions(filter, 3, 1, 1, 1, 1);
List<Object> all = filter.getAll(Object.class.getName());
assertEquals(3, all.size());
assertTrue(all.contains(myObj1));
assertTrue(all.contains(myObj2));
assertTrue(all.contains(myObj3));
}
@Test
public void shouldGetAdded() {
Object myObj1 = new Object();
ObjectFilter filter = new ObjectFilter();
filter.add(myObj1);
testAssertions(filter, 1, 1, 1, 0, 0);
List<Object> list = filter.getAdded(Object.class.getName());
assertEquals(1, list.size());
assertTrue(list.contains(myObj1));
}
@Test
public void shouldGetUpdated() {
Object myObj1 = new Object();
ObjectFilter filter = new ObjectFilter();
filter.update(myObj1);
testAssertions(filter, 1, 1, 0, 1, 0);
List<Object> list = filter.getUpdated(Object.class.getName());
assertEquals(1, list.size());
assertTrue(list.contains(myObj1));
}
@Test
public void shouldGetRemoved() {
Object myObj1 = new Object();
ObjectFilter filter = new ObjectFilter();
filter.remove(myObj1);
testAssertions(filter, 1, 1, 0, 0, 1);
List<Object> list = filter.getRemoved(Object.class.getName());
assertEquals(1, list.size());
assertTrue(list.contains(myObj1));
}
private void testAssertions(ObjectFilter filter, int size, int sizeKeySet, int added, int updated, int removed) {
assertEquals(size, filter.sizeCache());
assertEquals(sizeKeySet, filter.sizeKeySet());
List<Object> addedList = filter.getAdded(Object.class.getName());
assertEquals(added, addedList.size());
List<Object> updatedList = filter.getUpdated(Object.class.getName());
assertEquals(updated, updatedList.size());
List<Object> removedList = filter.getRemoved(Object.class.getName());
assertEquals(removed, removedList.size());
}
private class TestObject {
private int id;
public TestObject(int id) {
this.id = id;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + getOuterType().hashCode();
result = prime * result + this.id;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
TestObject other = (TestObject) obj;
if (!getOuterType().equals(other.getOuterType()))
return false;
if (this.id != other.id)
return false;
return true;
}
private ObjectFilterTest getOuterType() {
return ObjectFilterTest.this;
}
}
}