All 2 entries tagged Tdd

Nemerle, NUnit and custom operators

Nemerle allows the definition of new operators. I always feel annoyed having to write code like “Assert.AreEqual(42, myVal)” when unit testing with NUnit.

So I created this operator for use in my project’s test library:

namespace Equin.Vectorization.Library.Tests
    module Utilities
        public static @=!=[T](x : T, y : T) : void
            Assert.AreEqual(x, y)

Now in my test cases I can use it like this:

[Test] public PixelAtTopLeft() : void
    using (bmp = CreateBitmap(Size(10, 10), [Pt(0,0)]))
        def ps = PixelSelector(bmp, Color.Black)
        def pixels = ps.GetPixels()

        mutable count = 0
        mutable aPoint : Pt[int] = null
        foreach (pt in pixels)
            count++
            aPoint = pt

        1 =!= count
        0 =!= aPoint.X
        0 =!= aPoint.Y

It’s just sugar, I know, but it makes the assertions really jump out at me. It’s less to type as well :)
I could even make it a macro instead of a method call, that would then let me create a pretty message string as well…

: 01 Nov 2006 18:52 |  Tags: Coding Nemerle Project Tdd |  Comments (0) |  Close comments |  Report a problem

Rhino Mocks Boo Macros Released

Writing about web page http://www.equin.co.uk/boo/rmbm.htm

My Boo syntactic macros for the Rhino Mocks mock object library are available to test. I've only spent a few days working on them but they are already powerful.

For download links and docs see preliminary documentation

: 27 Jun 2006 16:09 |  Tags: Bdd Boo Coding Dotnet Rhino Mocks Tdd |  Comments (1) |  Close comments |  Report a problem