Should Throw - need to expose error details

[staxmanade]

Given the following test

It "should not fail" {
    { throw 'helpful error message' } | Should Not Throw
}

I get the following output.

[-]   should fail 2ms
      Expected: the expression to not throw an exception
      at line: 9 in C:\Code\sample\powershellTests\src\run-sample.Tests.ps1

When an exception happens in a test, I would be helpful if we could see the actual exception. Currently the exception information appears to be swallowed and is hiding crucial details that would help us diagnose a failing test.

Similarly if we say "{ something } | Should Throw" I would be great if you could consider a syntax that would allow us to assert more specific information about the error.

Possibly something like

{ throw "hi"; } | Should Throw "hi"

Keeping in mind wild card or regex searches

{ [string]::Format("{0} {1}", "hello") } | Should Throw "*Index (zero based) must be greater than or equal to zero and less than the size of the argument list.*"

Or be able to determine the type of the exception object.

[FallenGameR]

Actually Pester also discards error info and makes it impossible to get the error details right now:

    It "does not record error information for tests" `
    {
        $error.Count | should be 0
        {throw "anything"} | should throw
        $error.Count | should be 0
    }

[jole78]

This would be a huge improvement. I often find myself wanting to test for the actual exception message and not only for a thrown exception.