public void CompletedEvent()
{
// Arrange
bool premature = true;
bool eventFired = false;
OperationCounter ops = new OperationCounter();
ops.Completed += (sender, eventArgs) =>
{
if (premature)
{
Assert.True(false, "Event fired too early!");
}
if (eventFired)
{
Assert.True(false, "Event fired multiple times.");
}
Assert.Equal(ops, sender);
Assert.Equal(eventArgs, EventArgs.Empty);
eventFired = true;
};
// Act & assert
ops.Increment(); // should not fire event (will throw exception)
premature = false;
ops.Decrement(); // should fire event
Assert.True(eventFired);
ops.Increment(); // should not fire event (will throw exception)
}
public void CompletedEvent()
{
// Arrange
bool premature = true;
bool eventFired = false;
OperationCounter ops = new OperationCounter();
ops.Completed += (sender, eventArgs) =>
{
if (premature)
{
Assert.True(false, "Event fired too early!");
}
if (eventFired)
{
Assert.True(false, "Event fired multiple times.");
}
Assert.Equal(ops, sender);
Assert.Equal(eventArgs, EventArgs.Empty);
eventFired = true;
};
// Act & assert
ops.Increment(); // should not fire event (will throw exception)
premature = false;
ops.Decrement(); // should fire event
Assert.True(eventFired);
ops.Increment(); // should not fire event (will throw exception)
}
public void DecrementWithNoArguments() {
// Arrange
OperationCounter ops = new OperationCounter();
// Act
int returned = ops.Decrement();
int newCount = ops.Count;
// Assert
Assert.AreEqual(-1, returned);
Assert.AreEqual(-1, newCount);
}
public void DecrementWithIntegerArgument()
{
// Arrange
OperationCounter ops = new OperationCounter();
// Act
int returned = ops.Decrement(3);
int newCount = ops.Count;
// Assert
Assert.Equal(-3, returned);
Assert.Equal(-3, newCount);
}
public void DecrementWithNoArguments()
{
// Arrange
OperationCounter ops = new OperationCounter();
// Act
int returned = ops.Decrement();
int newCount = ops.Count;
// Assert
Assert.Equal(-1, returned);
Assert.Equal(-1, newCount);
}
public void DecrementWithIntegerArgument()
{
// Arrange
OperationCounter ops = new OperationCounter();
// Act
int returned = ops.Decrement(3);
int newCount = ops.Count;
// Assert
Assert.AreEqual(-3, returned);
Assert.AreEqual(-3, newCount);
}