public void Call_Canvas_BucketFill_When_Params_Are_Fine()
{
uint expected_x = 1;
uint expected_y = 1;
var expected_colour = 'c';
var args = new string[]
{
expected_x.ToString(),
expected_y.ToString(),
expected_colour.ToString()
};
var mockCanvas = new Mock <ICanvas>();
mockCanvas.Setup(m => m.BucketFill(It.IsAny <BucketFillParameters>()));
var command = new BucketFillCommand();
command.Input = args;
command.Execute(mockCanvas.Object);
var expected_bulk_fill_parameters = new BucketFillParameters
{
//adjust 1-based coordinates to 0-based
Point = new Point(expected_x - 1, expected_y - 1),
Color = expected_colour
};
mockCanvas.Verify(x => x.BucketFill(expected_bulk_fill_parameters),
Times.Exactly(1),
"BucketFillCommand doesn't call Canvas.BucketFill with correct args");
}
public void Throw_When_No_Canvas_Exist()
{
var command = new BucketFillCommand();
command.Input = new string[] { "1", "1", "c" };
Action test = () => command.Execute(null);
test.Should().Throw <ArgumentNullException>();
}
public void Throw_When_Null_Argument()
{
var canvas = new Canvas(new CanvasDimentions {
Width = 100, Height = 100
});
var command = new BucketFillCommand();
Action test = () => command.Execute(canvas);
test.Should().Throw <ArgumentNullException>();
}
public void Throw_When_An_Expected_Param_Is_Of_Invalid_Format(string arg1, string arg2, string arg3)
{
var canvas = new Canvas(new CanvasDimentions {
Width = 100, Height = 100
});
var command = new BucketFillCommand();
command.Input = new string[] { arg1, arg2, arg3 };
Action test = () => command.Execute(canvas);
test.Should().Throw <ArgumentException>();
}
public void Throw_When_Fewer_Params_Than_Expected_Are_Passed()
{
var canvas = new Canvas(new CanvasDimentions {
Width = 100, Height = 100
});
var command = new BucketFillCommand();
command.Input = new string[] { "1", "2" };
Action test = () => command.Execute(canvas);
test.Should().Throw <ArgumentException>();
}
