package com.twelvemonkeys.util;
import java.util.Map;
import java.util.HashMap;
/**
* NOTE: This TestCase is written especially for NullMap, and is full of dirty
* tricks. A good indication that NullMap is not a good, general-purpose Map
* implementation...
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/test/java/com/twelvemonkeys/util/NullMapTestCase.java#2 $
*/
public class NullMapTestCase extends MapAbstractTestCase {
private boolean empty = true;
public Map makeEmptyMap() {
return new NullMap();
}
public Map makeFullMap() {
return new NullMap();
}
public Map makeConfirmedMap() {
// Always empty
return new HashMap();
}
public void resetEmpty() {
empty = true;
super.resetEmpty();
}
public void resetFull() {
empty = false;
super.resetFull();
}
public void verifyAll() {
if (empty) {
super.verifyAll();
}
}
// Overriden, as this map is always empty
public void testMapIsEmpty() {
resetEmpty();
assertEquals("Map.isEmpty() should return true with an empty map",
true, map.isEmpty());
verifyAll();
resetFull();
assertEquals("Map.isEmpty() should return true with a full map",
true, map.isEmpty());
}
// Overriden, as this map is always empty
public void testMapSize() {
resetEmpty();
assertEquals("Map.size() should be 0 with an empty map",
0, map.size());
verifyAll();
resetFull();
assertEquals("Map.size() should equal the number of entries " +
"in the map", 0, map.size());
}
public void testMapContainsKey() {
Object[] keys = getSampleKeys();
resetEmpty();
for(int i = 0; i < keys.length; i++) {
assertTrue("Map must not contain key when map is empty",
!map.containsKey(keys[i]));
}
verifyAll();
}
public void testMapContainsValue() {
Object[] values = getSampleValues();
resetEmpty();
for(int i = 0; i < values.length; i++) {
assertTrue("Empty map must not contain value",
!map.containsValue(values[i]));
}
verifyAll();
}
public void testMapEquals() {
resetEmpty();
assertTrue("Empty maps unequal.", map.equals(confirmed));
verifyAll();
}
public void testMapHashCode() {
resetEmpty();
assertTrue("Empty maps have different hashCodes.",
map.hashCode() == confirmed.hashCode());
}
public void testMapGet() {
resetEmpty();
Object[] keys = getSampleKeys();
for (int i = 0; i < keys.length; i++) {
assertTrue("Empty map.get() should return null.",
map.get(keys[i]) == null);
}
verifyAll();
}
public void testMapPut() {
resetEmpty();
Object[] keys = getSampleKeys();
Object[] values = getSampleValues();
Object[] newValues = getNewSampleValues();
for (int i = 0; i < keys.length; i++) {
Object o = map.put(keys[i], values[i]);
//confirmed.put(keys[i], values[i]);
verifyAll();
assertTrue("First map.put should return null", o == null);
}
for (int i = 0; i < keys.length; i++) {
map.put(keys[i], newValues[i]);
//confirmed.put(keys[i], newValues[i]);
verifyAll();
}
}
public void testMapToString() {
resetEmpty();
assertTrue("Empty map toString() should not return null",
map.toString() != null);
verifyAll();
}
public void testMapPutAll() {
// TODO: Find a menaingful way to test this
}
public void testMapRemove() {
resetEmpty();
Object[] keys = getSampleKeys();
for(int i = 0; i < keys.length; i++) {
Object o = map.remove(keys[i]);
assertTrue("First map.remove should return null", o == null);
}
verifyAll();
}
//-----------------------------------------------------------------------
public void testEntrySetClearChangesMap() {
}
public void testKeySetClearChangesMap() {
}
public void testKeySetRemoveChangesMap() {
}
public void testValuesClearChangesMap() {
}
public void testEntrySetContains1() {
}
public void testEntrySetContains2() {
}
public void testEntrySetContains3() {
}
public void testEntrySetRemove1() {
}
public void testEntrySetRemove2() {
}
public void testEntrySetRemove3() {
}
}