Re: Updates to NUnit 2.5

More updates checked into CVS. All of this will be documented
for the release, but some of you may want an early heads-up,
especially if you are working on addins.

EXTENSIBILITY

The ParameterProviders extension point has been renamed
to TestCaseProviders. The interface that extensions must
implement is now ITestCaseProvider. Here's the definition:

    public interface ITestCaseProvider
    {
        bool HasTestCasesFor(MethodInfo method);
        IEnumerable GetTestCasesFor(MethodInfo method);
    }

This is essentially the same as the IParameterProvider
interface in the first two alphas.

BUILT-IN PARAMETERIZED TESTS

NUnit currently has two built-in providers:
TestCaseParameterProvider for TestCaseAttribute and 
TestCaseFactoryProvider for FactoryAttribute.

TestCaseParameterProvider will perform a number of
conversions in order to make the provided argument
compatible with method call.

TestCaseFactoryProvider can work with properties,
methods and fields that implement IEnumerable. For
static cases, use of an array is the simplest
approach. Either static or instance members may be
used. For methods takin a single ValueType argument,
the enumerator may return the bare argument rather
than an array with one member.

All of the above work at load time. For dynamic
test cases, provided at the instance of executin
the test and possibly varying from run to run, I
plan to add DynamicTest and DynamicTestCaseProvider.

OTHER STUFF

The RequiredAddinAttribute may be placed on the assembly,
on a class or on a method. If the named addin is not
loaded, the test or suite is NotRunnable and shows up
as red in the Gui.

Charlie

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On 
> Behalf Of Charlie Poole
> Sent: Monday, June 16, 2008 12:14 PM
> To: [email protected]
> Subject: [nunit-developer] Updates to NUnit 2.5
> 
> Hi All,
> 
> Now that I'm back home, I can properly upload a number of 
> changes I made on my laptop while travelling. 
> 
> So far, I have made the following changes:
> 
> 1. The release is now 2.5 Alpha 3.
> 
> 2. I have changed DataSourceAttribute to FactoryAttribute and 
> it may now appear on a property, field or method. Any of 
> these may be either static or instance members.
> 
> 3. IParameterProvider.GetParametersFor(MethodInfo method) now 
> returns IEnumerable rather than IList.
> 
> 4. The Test abstract class now has default implementations 
> for several properties that were previously abstract. One of the
> Run() overloads has been removed.
> 
> I'll post further as more changes are made.
> 
> Charlie
> 
> 
> 
> 
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