Test: Evaluate API gaps for better VIM support

[Tyriar]

Test for #8997:

• Any OS (Linux) - @Tyriar

Set up

• Clone the repository VS Code Extension Samples
• Go to the folder vim-sample and do npm install
• Open VS Code on vim-sample
• Run the extension using Launch Extension.

This will run Vim sample extension and is referred as Vim editor from here after. Verify following scenarios on this.

Good to know

• Vim editor has basically 3 modes: Normal, Visual, Edit.

Mode change

• Press i for edit mode when in normal or visual mode.
• Press esc for normal node when in edit mode.
• Press v for visual mode when in normal mode.

Line vs wrapped line

A line is a complete line that can consists of one or more wrapped lines in the screen.

Note: All of these scenarios have to be tested in non-edit mode

Test Cursor movements

When cursor is in wrapped line then typing...

Test left - right motions

• g0: Moves to beginning
• vg0: Selects till beginning
• `g^: Moves to first non white space character
• vg^: Selects till first non white space character
• g$: Moves to end
• vg$: Selects till end
• g_: Moves to last non white space character
• vg_: Selects till last non white space character
• gm: Moves to center
• vgm: Selects till center

Test up - down motions (Where n is a number variable and default is 1)

• ngkMove up n wrapped lines
• nvgkSelect till n wrapped lines up
• ngjMove down n wrapped lines
• nvgjSelect till n wrapped lines down
• nH Move to first non white space character of nth line from the top of the view
• nvH Select till first non white space character of nth line from the top of the view
• nL Move to first non white space character of nth line from the bottom of the view
• nvL Select till first non white space character of nth line from the bottom of the view
• nM Move to first non white space character of center line of the view
• nvM Select till first non white space character of center line of the view

Test Tab motions

In Normal / Visual mode, typing : will open an Input box. In the input box, type and test following for current active editor

Note: For convenience, input box is pre-filled with value tabm.

When tabs are enabled

• tabm Moves to last position in its group
• tabm{n} Moves to position n in its group. Default is 0.
• tabm>{n} Moves to right by n positions in its group. Default is 1.
• tabm<{n} Moves to left by n positions in its group. Default is 1.
• tabm>> Moves to last position in its group.
• tabm<< Moves to last position in its group.
• tabm. Moves to center of its group. Default is 1.

When tabs are disabled

Note: 0: Left, 1:Center, 2:Right

• tabm, tabm>, tabm>> Moves to Right group
• tabm<, tabm<< Moves to Left group
• tabm. Moves to Center group
• tabm{n} Moves to group n. Default is Right.

Known bugs

• cursroMove to end of wrapped line in select mode is not selecting the text #9732
• getLinesViewportData api in verticalObjects is returning range where start line and end line is not visible #9542