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vscode-test-set-content

Provides a set of helper functions for setting the content of the Visual Studio Code instance.

Usage

const setContent = require( 'vscode-test-set-content' );

setContent( 'Fancy content!' )
    .then( textEditor => {
        assert.equal( textEditor.document.lineAt( 0 ).text, 'Fancy content!' );
        // You'd want to continue your assertions here.
    } );

Setting the content with a collapsed selection (^):

setContent.withSelection( 'Put a collapsed selection here ^' )
    .then( textEditor => {
        // Sets editor's content to "Put a collapsed selection here " and puts a collapsed selection at the end.
    } );

Setting the content with a ranged selection ([, ], {, }):

setContent.withSelection( 'Fancy [content}!' )
    .then( textEditor => {
        // Now you have textEditor with "Fancy content!", where "content" word is selected.
    } );

Markers

Collapsed:
- ^ - Simply marks where the selection caret should be.
Ranged:
- [, ] - Marks where selection anchor opening or close should be. Anchor is a position where the selection was started.
- {, } - Marks where selection active opening or close should be.
```
Active part is the part where the selection ended, and it's the point from which the selection is continued from if you continue to enlarge the selection.
```

Customizing Markers

If the default markers collide with your use case, you can customize it.

const setContent = require( 'vscode-test-set-content' );

setContent.withSelection( 'let 🦄foo = () => { 🍕return🚒 []; };', {
        caret: '🦄',
        anchor: {
            start: '🍕',
            end: '🙈'
        },
        active: {
            start: '🤦',
            end: '🚒'
        }
    } )
    .then( textEditor => {
        // Sets editor content to "let foo = () => { return []; };" with caret before "foo", and "return" selected.
    } );

Limitations

Nested and intersecting ranges are not handled, since those are not handled in VSCode itself as of version 1.9.1.