Robustify speech recognition test

[danmoseley]

Fix #76626 (?)

I can't reproduce the failure despite looping the tests for some time while keeping the machine busy doing builds. So I really have no theory why it failed.

1. Change the test words to a couple found by trial and error to be recognized with particularly high confidence level. Used two so we can see if both fail or just one.
2. Add diagnostic logging that is output if the tests fail.
3. Increase a couple of relevant timeouts from defaults.

Also added an error case test with silence. (Was not able to find an input string that it would refuse to recognize. It always just had low confidence. White noise does lead to failure, but I don't have a quick way to make that in a test.)

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Issue Details

---

Fix #76626 (?)

I can't reproduce the failure despite looping the tests for some time while keeping the machine busy doing builds. So I really have no theory why it failed.

1. Change the test words to a couple found by trial and error to be recognized with particularly high confidence level. Used two so we can see if both fail or just one.
2. Add diagnostic logging that is output if the tests fail.
3. Increase a couple of relevant timeouts from defaults.

Also added an error case test with silence. (Was not able to find an input string that it would refuse to recognize. It always just had low confidence.)

Author:	danmoseley
Assignees:	-
Labels:	area-System.Speech
Milestone:	-

[danmoseley]

Looks like I should use "Contains"

       Passing synthesized input 'recognize'
        Speech detected at position 00:00:00
        Received speech recognized event with result 'A recognized'
        Recognized 'A recognized' with confidence 0.0050567742
        Elapsed 00:00:02.1001459
        Alternatives included 'A recognized'' with confidence 0.0050567742
        Alternatives included 'a recognized'' with confidence 0.0050567742
        Alternatives included 'recognized'' with confidence 0.0020464011
        Alternatives included 'I recognized'' with confidence 0.0024469797

Also retries, as this should be ~0.85 confidence, somethings' all wrong in this case.

[danmoseley]

1. Added retries.
2. Skip on 32 bit Windows 7, as that's all the recent failures.
3. Change to "contains" so that "a recognized" matches "recognize"

The combination of this should do it.

[danmoseley]

test failures are unrelated: #76681

[danmoseley]

Fixed typo, since rerunning might not be a bad thing.

[danmoseley]

@carlossanlop maybe you could review? I expect checks to be green/known failures

[danmoseley]

Failures are #75354 and #76681. Should be good to merge.

[carlossanlop]

LGTM. Just left a non-blocking question.

CI failures are unrelated:

• SendFileGetsCanceledByDispose failed with ObjectDisposedException  #75354
• dotnet build returns exit code 1 even when the build passes #74328