Hmm, that's a bit tricky. There's a few solutions but none of them are very
nice.
What you really want is to be able to provide your own assertion context,
or at least change the behaviour when a failure is reported. Unfortunately
none of that code is extensible, as far as I can tell.
That's an area we can look to improve, but for now you might have to cobble
something together yourself. How about something like this?
[Test]
public void Multiple_asserts_with_screenshot()
{
var success = false;
WithScreenshot(() => Assert.IsTrue(false), ref success);
WithScreenshot(() => Assert.AreEqual(1, 2), ref success);
Assert.IsTrue(success);
}
private void WithScreenshot(Action action, ref bool success)
{
try
{
action();
}
catch (AssertionFailureException)
{
var bitmap = Capture.Screenshot();
TestContext.CurrentContext.LogWriter.Default.EmbedImage(null, bitmap);
success = false;
}
}
On 13 April 2012 20:29, manx <[email protected]> wrote:
> Hi
>
> Basically I'd like to make a screenshot of active window whenever
> assertion fails (at least for now). As I mentioned before I perform
> tests within multiple assertion block so I don't want to wait for
> entire test completion to make this screenshot. Also built-in
> screenshot mechanism is not satisfying for me since I didn't see
> triggers different from test finish, test failure etc.
>
> I tried to put whole test in try - catch block and catch
> AssertionException but it doesn't work in every case and I wasn't able
> to figure out why.
>
>
> On 13 Kwi, 18:13, Graham Hay <[email protected]> wrote:
> > Exactly what behaviour are you looking for? Do you want to perform the
> > action when the assert fails, or can you wait until the test has
> completed?
> >
> > On 13 April 2012 10:24, manx <[email protected]> wrote:
> >
> >
> >
> >
> >
> >
> >
> > > Hi
> >
> > > I need to write own custom attribute to decorate test method which
> > > will allow me to perform any action when assertion fails. My tests are
> > > already with [MultipleAsserts] attribute so this action cannot be
> > > triggered when test fails but when single assertion fails.
> >
> > > I appreciate any suggestions
> > > M.
> >
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