Write more tests for post-4.5 release

[corinagum]

Feature Request

Is your feature request related to a problem? Please describe.
No

Describe the suggestion or request in detail
The following issues (mostly speech-related) should have more tests written:

• Should not stop after first spoken text #2016
• Fix mobile focus UX #2087
• Remove markdown from spoken text for screen reader #2096
  • Not trivial to test aria-label
• Fix Speech speaking the title, subtitle, and text of cards #2118

Also, the mockWebSpeech.js file needs more coverage in these areas:

• Web Chat should select voice based on language
• Web Chat should set SpeechRecognition.lang based on language
• Unhappy paths
  • Bird tweets
  • User denied access to microphone
  • Unrecognizable voice (a.k.a. no-match)
  • Network error or wrong credentials
• Abort while recognizing, then restart microphone again (regression of Speech: Stop microphone button should re-enable the button after a few seconds #2240)
• TBD

Speech tests around consecutive activities with different inputHint

Note that 1st and 2nd activity could sometimes have a slight delay between them, ~1 second.

1st activity	2nd activity	Should turn on microphone if via keyboard	Should turn on microphone if via microphone
Accepting input	Accepting input	No	No
Accepting input	Expecting input	No	Yes
Accepting input	Ignoring input	No	No
Expecting input	Accepting input	No	Yes
Expecting input	Expecting input	No	Yes
Expecting input	Ignoring input	No	No (explicitly turn it off)
Ignoring input	Accepting input	No	No
Ignoring input	Expecting input	No	Yes
Ignoring input	Ignoring input	No	No

Reliability issues

• suggested-actions command should show suggested actions with images
  • After emptycard was sent, we didn't wait until suggested actions show up
  • Today, we use minNumActivitiesShown to test, but this cannot be used to test empty card or suggested actions
  • Use suggestedActionsShowed condition to wait until suggested actions show up before taking the snapshot

Describe alternatives you have considered
N/A

[Enhancement]

[compulim]

Reopening, we still have the input hint need to be tested.