public void ExecuteTest()
{
//Arrange
int getValue = 42;
bool onGetQuestIsEqualToExpected = false;
bool onActionOnQuestIsEqualToExpected = false;
bool oldValueEqualsToValueFromGetter = false;
Quest quest = QuestHelper.CreateQuest();
MockPropertyChangeQuestCommand command = new MockPropertyChangeQuestCommand();
command.OnGetPropertyValue += q =>
{
onGetQuestIsEqualToExpected = quest == q;
return(getValue);
};
command.OnActionOnQuest += (q, ov) =>
{
onActionOnQuestIsEqualToExpected = quest == q;
oldValueEqualsToValueFromGetter = ov == getValue;
};
//Act
bool result = command.Execute(quest);
//Assert
Assert.IsTrue(result);
Assert.IsTrue(onGetQuestIsEqualToExpected);
Assert.IsTrue(onActionOnQuestIsEqualToExpected);
Assert.IsTrue(oldValueEqualsToValueFromGetter);
}
public void ExecuteSameQuestTwiceTest()
{
//Arrange
int getPropertyValueCounter = 0;
int actionOnQuestCounter = 0;
Quest quest = QuestHelper.CreateQuest();
MockPropertyChangeQuestCommand command = new MockPropertyChangeQuestCommand();
command.OnGetPropertyValue += q => getPropertyValueCounter++;
command.OnActionOnQuest += (q, ov) =>
{
actionOnQuestCounter++;
};
//Act
bool firstResult = command.Execute(quest);
bool secondResult = command.Execute(quest);
//Assert
Assert.IsTrue(firstResult);
Assert.IsFalse(secondResult);
Assert.AreEqual(1, getPropertyValueCounter);
Assert.AreEqual(1, actionOnQuestCounter);
}
public void UndoAfterExecuteTest()
{
//Arrange
int getValue = 42;
Quest quest = QuestHelper.CreateQuest();
Quest questToSet = null;
int valueToSet = default(int);
MockPropertyChangeQuestCommand command = new MockPropertyChangeQuestCommand();
command.OnGetPropertyValue += q => getValue;
command.OnActionOnQuest += (q, ov) => { };
command.OnSetPropertyValue += (q, v) =>
{
questToSet = q;
valueToSet = v;
};
//Act
command.Execute(quest);
bool undoResult = command.Undo(quest);
//Assert
Assert.IsTrue(undoResult);
Assert.AreEqual(quest, questToSet);
Assert.AreEqual(getValue, valueToSet);
}
public void UndoWithoutExecuteTest()
{
//Arrange
int setPropertyCalledValue = 0;
Quest quest = QuestHelper.CreateQuest();
MockPropertyChangeQuestCommand command = new MockPropertyChangeQuestCommand();
command.OnSetPropertyValue += (q, v) => { setPropertyCalledValue++; };
//Act
bool undoResult = command.Undo(quest);
//Assert
Assert.IsFalse(undoResult);
Assert.AreEqual(0, setPropertyCalledValue);
}