@Test
public void checkIterator() {
int size = 20;
IElement singleDummy;
ArrayList<IElement> dummies = new ArrayList<>();
for (int i = 0; i < size; i++) {
singleDummy = mock(this.elementClass);
/*
* Nodes are stored with an index, so set it please!
*/
if (singleDummy instanceof Node) {
when(((Node) singleDummy).getIndex()).thenReturn(i);
}
if (singleDummy instanceof Edge) {
when(((Edge) singleDummy).getHashString()).thenReturn("" + i);
}
dataStructure.add(singleDummy);
dummies.add(singleDummy);
}
Iterator<IElement> elemIterator = dataStructure.iterator();
while (elemIterator.hasNext()) {
singleDummy = elemIterator.next();
assertTrue(dummies.contains(singleDummy));
dummies.remove(singleDummy);
}
assertTrue(dummies.isEmpty());
}
@Test
public void checkResizement() {
int initialSize = dataStructure.getDefaultSize();
int goalSize = 10 * initialSize;
assertEquals(0, dataStructure.size());
IElement singleDummy;
for (int i = 0; i < goalSize; i++) {
singleDummy = mock(this.elementClass);
/*
* Nodes are stored with an index, so set it please!
*/
if (singleDummy instanceof Node) {
when(((Node) singleDummy).getIndex()).thenReturn(i);
}
if (singleDummy instanceof Edge) {
when(((Edge) singleDummy).getHashString()).thenReturn("" + i);
}
dataStructure.add(singleDummy);
}
assertEquals(goalSize, dataStructure.size());
}
@Test
public void checkDuplicateCalls() {
IElement dummy = getDummy(elementClass);
assertTrue(dataStructure.add(dummy));
assertFalse(dataStructure.add(dummy));
assertTrue(dataStructure.remove(dummy));
assertFalse(dataStructure.remove(dummy));
}
@Test
public void checkNullsInIterator() {
IElement singleDummy;
dataStructure.reinitializeWithSize(10);
Iterator<IElement> elemIterator = dataStructure.iterator();
while (elemIterator.hasNext()) {
singleDummy = elemIterator.next();
assertNotNull(singleDummy);
}
}
@Test
public void checkCorrectSize() {
IElement[] dummies = new IElement[10];
for (int i = 0; i < dummies.length; i++) {
dummies[i] = mock(this.elementClass);
if (Node.class.isAssignableFrom(this.elementClass))
when(((Node) dummies[i]).getIndex()).thenReturn(i);
if (dummies[i] instanceof Edge) when(((Edge) dummies[i]).getHashString()).thenReturn("" + i);
assertTrue(dataStructure.add(dummies[i]));
}
assertEquals(dummies.length, dataStructure.size());
}
@Test
public void checkNullsInGetElements() {
assumeTrue(dataStructure instanceof INodeListDatastructureReadable);
INodeListDatastructureReadable tempDS = (INodeListDatastructureReadable) dataStructure;
dataStructure.reinitializeWithSize(10);
for (IElement singleDummy : tempDS.getElements()) {
assertNotNull(singleDummy);
}
}
@Test
public void checkAddAndRemove() {
IElement dummy = mock(elementClass);
if (dummy instanceof Edge) {
when(((Edge) dummy).getHashString()).thenReturn("1");
}
assertFalse(dataStructure.contains(dummy));
assertEquals(0, dataStructure.size());
assertTrue(dataStructure.add(dummy));
assertTrue(dataStructure.contains(dummy));
assertEquals(1, dataStructure.size());
assertTrue(dataStructure.remove(dummy));
assertFalse(dataStructure.contains(dummy));
assertEquals(0, dataStructure.size());
}
@SuppressWarnings("unchecked")
@Test
public void checkOnlyOneDatatype() {
IElement dummy;
int exceptionCounter = 0;
/*
* Checking whether add() throws the exception we want it to throw does
* not cover all cases here - we want to ensure that really only
* instances of one single element class can be stored, and *all* other
* instance types are rejected
*
* The exception counter will be increased for each *allowed* class and
* each *rejected* class. There should be no gap in between...
*/
for (Class otherElementClass : GlobalTestParameters.elementClasses) {
if (elementClass.isAssignableFrom(otherElementClass)) {
assertTrue(
"Datastructure "
+ dataStructure.getClass()
+ "["
+ this.elementClass
+ "] can't store "
+ otherElementClass
+ " even if it should",
dataStructure.canStore(otherElementClass));
exceptionCounter++;
continue;
}
dummy = (IElement) mock(otherElementClass);
boolean exceptionThrown = false;
assertFalse(
"Datastructure "
+ dataStructure.getClass()
+ "["
+ this.elementClass
+ "/"
+ dataStructure.getDataType()
+ "] can store "
+ otherElementClass
+ " even if it shouldn't",
dataStructure.canStore(otherElementClass));
try {
dataStructure.add(dummy);
} catch (RuntimeException e) {
exceptionCounter++;
exceptionThrown = true;
}
assertTrue("Whoopsie - whats up with " + otherElementClass, exceptionThrown);
/*
* So, this is thrown when the datastructure is not allowed to be
* added to that list, but no exception is thrown. Common error:
* add() has not called canAdd()
*/
}
assertEquals(GlobalTestParameters.elementClasses.length, exceptionCounter);
}