public void GetNextColor_ReturnsFirstColor_OnFirstCall()
{
PatternBasedColorAlternator <string> alternator = GetDummyAlternator();
Color firstColor = alternator.GetNextColor(dummyTarget);
Assert.Equal(firstColor, dummyColors.First());
}
public void GetNextColor_ReturnsThirdColor_OnThirdCall()
{
PatternBasedColorAlternator <string> alternator = GetDummyAlternator();
Color firstColor = alternator.GetNextColor(dummyTarget);
Color secondColor = alternator.GetNextColor(dummyTarget);
Color thirdColor = alternator.GetNextColor(dummyTarget);
Assert.Equal(thirdColor, dummyColors.Last());
}
public void GetNextColor_ThrowsException_WhenCalledWithNoColorsAssigned()
{
PatternBasedColorAlternator <string> alternator = new PatternBasedColorAlternator <string>(new TextPatternCollection(new[] { dummyPattern }));
Assert.Throws <InvalidOperationException>(() => alternator.GetNextColor(dummyTarget));
}
public void GetNextColor_ThrowsException_WhenCalledWithNoColorsAssigned()
{
PatternBasedColorAlternator<string> alternator = new PatternBasedColorAlternator<string>(new TextPatternCollection(new[] { dummyPattern }));
Assert.Throws<InvalidOperationException>(() => alternator.GetNextColor(dummyTarget));
}
