Add {Shift} and {leftarrow} supported.

[disappearedgod]

Current behavior:

I get a input and type a string(like 'ava') and want to select the last char with Shift + leftarraow from the cursor.

But I sees leftarraow would work without Shift. The cursor moves after 'v', like 'av | a'

Desired behavior:

I want to select the last char with typing Shift + leftarraow

Test code to reproduce

cy.get('#ID').find('input[type=text]').eq(0)
.type('ava')
.type('{Shift}{leftarrow}', {release : false})

Versions

cypress :5.0.2
macOS :10.15.2
Chrome

[disappearedgod]

[jennifer-shehane]

Cypress' API does not fully support text selection at the moment. Closing as duplicate of #2839 which does detail a workaround for simulating test selection here: #2839 (comment)