Tuesday, June 17, 2008

Announcing Gallio Alpha 3 Update 3

Here comes the next update to Gallio and MbUnit v3.

This is an interim release with a few new features and updates.

Download here: (link)

New and Noteworthy

ReSharper v4.0 Final Integration

This update now supports the final release of ReSharper v4.0.

Enjoy!

MbUnit [Factory] Attribute

Suppose we've got a function like this:

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To test it, we'll need some different kinds of objects.

So let's use a factory:

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That's quite simple, assuming we only want to use single objects for each run.

But we can do better.  We can also return arrays of objects:

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However, this doesn't test the case where the value was null.  In that case, the formatter function is supposed to throw an ArgumentNullException.

We can simulate the behavior of the [ExpectedException] attribute by returning additional metadata along with the data item.  Of course, we can include other metadata too, like test descriptions, and other data.

image

 

MbUnit [Repeat] and [ThreadedRepeat] Attributes

Sometimes when testing features with non-deterministic behavior, it's useful to be able to run a test repeatedly.

Use the [Repeat] and [ThreadedRepeat] attributes in MbUnit to run tests sequentially or concurrently.

Since the attribute is a test decorator, it may be used with most any kind of test, including data-driven tests.  It can also be used on fixtures, if you like.

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Each run appears as a separate item in the report.  They are considered dynamic test steps that are nested within the test.

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CSV Files with Metadata

Several people have requested the ability to include additional metadata in rows that are specified by CSV files using the [CsvData] attribute in MbUnit.

Now you can.

Just enclose the name of the column that contains metadata with '[' and ']' and that column will be exposed as a metadata item whose key is the name of the column.

So given this test:

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And this data file:

Item, Price, [ConsumedBy]
Apples, 1.00, Worm
Bananas, 1.50, Monkey
Cookies, 2.00, "Cookie Monster"

We get this output in the report:

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Notice that the metadata appears in the report as well as the name of the resource and the line number where the data came from!

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3 comments:

Yann Trevin said...

Similarly to the contract verifiers in the previous release, the new Factory attribute makes a clever usage of the enumerators. I like it.

Anonymous said...

Does [Factory] work with anonymous classes instead of object arrays? Some times I would prefer anonymous class verbosity to know what argument does what.

Anonymous said...

It seems like you're referencing a different version of xunit than is publicly available from the codeproject site (you're v 1.0.0.1267, and the "earliest" release for download is v 1.0.0.1279, which they're calling 1.0.1). Other than that very small issue it looks great.