MbUnit Re: RowTest and DateTime

Wed, 16 Aug 2006 12:21:31 -0700

Dunno, I think my solution looks pretty clean.  It gets the type of the parameter from the method signature and includes it as part of the data binding's definition.  For Xml data binding this sort of thing is required anyways because we only have strings to work with.  I don't believe generics help us in this situation because they cannot be used as constants in attribute declarations.  We can't even use structures of any kind.  (*sigh*)
 
So if we're going to put values in attributes, we're stuck doing some kind of type conversion except for the primitive types.
 
Jeff.

From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Stopford
Sent: Tuesday, August 15, 2006 4:22 AM
To: [email protected]
Subject: MbUnit Re: RowTest and DateTime

Hi,
 
What worries me here is that its got to try and figure the type out and I am not sure it could be done cleanly. I would like to use your data binding work in v3 to improve what we have in v2.*. I think that using Generics could bring a lot to the table, maybe this could answer this sort of question?
 
Andy
 
On 8/15/06, Jeff Brown <[EMAIL PROTECTED]> wrote:
Perhaps we could set up a facility to assist in deserializing values of custom datatypes more automatically.  A couple of thoughts come to mind.  (This aligns with the data-binding work I discussed in a previous email.)
 
We would like to write the following.
 
[RowTest]
[Row(new DateTime(2006, 12, 31))]
public void DateTest(DateTime date) { ... }
 
But we can't because DateTime is not one of the special constant types as far as the compiler is concerned.  (GRRRR!  Stupid restrictive languages!)
 
But string and array constants are ok.  So MbUnit could perform the type conversion for us.  A little magic may go a long way.  So we could write:
 
[Row("2006/12/31")]
public void DateTest(DateTime date) { ... }
 
And MbUnit would know to convert the string to DateTime using Convert.ToDateTime or an equivalent (possibly extensible) mechanism before invoking the method.  But it could also recognize object arrays as constructor arguments like this:
 
[Row(new object[] { 2006, 12, 31 })]
public void DateTest(DateTime date) { ... }
 
With a little reflective magic it could locate the right DateTime constructor to invoke and pass in the arguments we specified.
There are other variations we could consider here too...
 
What do you think?
 
Jeff.
 
P.S.  I'm seriously considering throwing together a comprehensive proposal for data-binding techniques and applications across the framework.

From: [email protected] [mailto: [email protected]] On Behalf Of Andrew Stopford
Sent: Monday, August 14, 2006 2:45 AM
To: [email protected]
Subject: MbUnit Re: RowTest and DateTime

 
Hi Phil,
 
Faries ran off with my brain on this one again. I suspect that it's really the one way you can do this.
 
Andy
 
On 8/12/06, Phil Winstanley <[EMAIL PROTECTED]> wrote:

Here's how I ended up getting round the Constants required for Row values…

 

        [RowTest()]

        [Row(1, 1, null, ExpectedException = typeof(BLAH))]

        [Row(1, 2, ("01 Jan 2006"))]

        [Row(1, 3, ("01 Jan 1900"))]

        [Row(1, 4, ("01 Jan 2050"), ExpectedException = typeof (BLAH))]

        public void BLAH (int OneId, int TwoId, string OneDate)

        {

            DateTime myDate = Convert.ToDateTime(OneDate);

            Assert.IsTrue(true);

        }

 

Is that the right way to do it? Is there a better way?

 

From: [email protected] [mailto:[email protected]] On Behalf Of Andrew Stopford
Sent: 10 August 2006 23:53
To: [email protected]
Subject: MbUnit Re: RowTest and DateTime

 

Hi Phil,

 

I asume you mean the date type, you should be ok to use this type directly. Let me know how you get on.

 

Andy

 

On 8/10/06, Plip <[EMAIL PROTECTED]> wrote:


Just a quick question, should I pass DateTimes into my RowTests are
strings and then convert them to DateTimes once they get in there?

Thanks,

Phil.







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