Mattermost-server: UI Automation: Write an automated test using Cypress for "Input box on main thread can expand with RHS closed"

[saturninoabril]

Test Key: M18711
Test folder: /cypress/integration/messaging
Title: Input box on main thread can expand with RHS closed

Steps:
Without any type of RHS open:

1. Type a post that is several lines long (can be done with SHIFT+ENTER blank newlines)
2. As the post becomes longer note the input box becomes taller to accommodate

Expected:
Text box continues to expand for each new line until it reaches about 50%. The box then begins to scroll once its maximum height has been reached

Note:

• If viewing the bottom of the channel when you start to type the post, recent posts above the message box move upward as the message box expands, so they are not covered
• If you are scrolled up in the center channel when you start to type the post, the message box expands over the posts (the posts do not move up)

See our end-to-end testing documentation for reference.

Jira ticket: MM-18711

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[larkox]

Hello Saturnino. Before taking on this one, would you mind explaining what you mean with RHS? I am not sure what you are referring to, so before getting into this issue I would like to know what it is so I can see if I can take on it.

[amyblais]

@larkox RHS refers to the right-hand-sidebar. Does this help?

[larkox]

Great. I expected it to be that, but I wanted to make sure. May I take this one?