pulsar/spec/selection-spec.js
2017-11-02 09:48:00 -07:00

158 lines
5.5 KiB
JavaScript

const TextEditor = require('../src/text-editor')
describe('Selection', () => {
let buffer, editor, selection
beforeEach(() => {
buffer = atom.project.bufferForPathSync('sample.js')
editor = new TextEditor({buffer, tabLength: 2})
selection = editor.getLastSelection()
})
afterEach(() => buffer.destroy())
describe('.deleteSelectedText()', () => {
describe('when nothing is selected', () => {
it('deletes nothing', () => {
selection.setBufferRange([[0, 3], [0, 3]])
selection.deleteSelectedText()
expect(buffer.lineForRow(0)).toBe('var quicksort = function () {')
})
})
describe('when one line is selected', () => {
it('deletes selected text and clears the selection', () => {
selection.setBufferRange([[0, 4], [0, 14]])
selection.deleteSelectedText()
expect(buffer.lineForRow(0)).toBe('var = function () {')
const endOfLine = buffer.lineForRow(0).length
selection.setBufferRange([[0, 0], [0, endOfLine]])
selection.deleteSelectedText()
expect(buffer.lineForRow(0)).toBe('')
expect(selection.isEmpty()).toBeTruthy()
})
})
describe('when multiple lines are selected', () => {
it('deletes selected text and clears the selection', () => {
selection.setBufferRange([[0, 1], [2, 39]])
selection.deleteSelectedText()
expect(buffer.lineForRow(0)).toBe('v;')
expect(selection.isEmpty()).toBeTruthy()
})
})
describe('when the cursor precedes the tail', () => {
it('deletes selected text and clears the selection', () => {
selection.cursor.setScreenPosition([0, 13])
selection.selectToScreenPosition([0, 4])
selection.delete()
expect(buffer.lineForRow(0)).toBe('var = function () {')
expect(selection.isEmpty()).toBeTruthy()
})
})
})
describe('.isReversed()', () => {
it('returns true if the cursor precedes the tail', () => {
selection.cursor.setScreenPosition([0, 20])
selection.selectToScreenPosition([0, 10])
expect(selection.isReversed()).toBeTruthy()
selection.selectToScreenPosition([0, 25])
expect(selection.isReversed()).toBeFalsy()
})
})
describe('.selectLine(row)', () => {
describe('when passed a row', () => {
it('selects the specified row', () => {
selection.setBufferRange([[2, 4], [3, 4]])
selection.selectLine(5)
expect(selection.getBufferRange()).toEqual([[5, 0], [6, 0]])
})
})
describe('when not passed a row', () => {
it('selects all rows spanned by the selection', () => {
selection.setBufferRange([[2, 4], [3, 4]])
selection.selectLine()
expect(selection.getBufferRange()).toEqual([[2, 0], [4, 0]])
})
})
})
describe("when only the selection's tail is moved (regression)", () => {
it('notifies ::onDidChangeRange observers', () => {
selection.setBufferRange([[2, 0], [2, 10]], {reversed: true})
const changeScreenRangeHandler = jasmine.createSpy('changeScreenRangeHandler')
selection.onDidChangeRange(changeScreenRangeHandler)
buffer.insert([2, 5], 'abc')
expect(changeScreenRangeHandler).toHaveBeenCalled()
})
})
describe('when the selection is destroyed', () => {
it('destroys its marker', () => {
selection.setBufferRange([[2, 0], [2, 10]])
const { marker } = selection
selection.destroy()
expect(marker.isDestroyed()).toBeTruthy()
})
})
describe('.insertText(text, options)', () => {
it('allows pasting white space only lines when autoIndent is enabled', () => {
selection.setBufferRange([[0, 0], [0, 0]])
selection.insertText(' \n \n\n', {autoIndent: true})
expect(buffer.lineForRow(0)).toBe(' ')
expect(buffer.lineForRow(1)).toBe(' ')
expect(buffer.lineForRow(2)).toBe('')
})
it('auto-indents if only a newline is inserted', () => {
selection.setBufferRange([[2, 0], [3, 0]])
selection.insertText('\n', {autoIndent: true})
expect(buffer.lineForRow(2)).toBe(' ')
})
it('auto-indents if only a carriage return + newline is inserted', () => {
selection.setBufferRange([[2, 0], [3, 0]])
selection.insertText('\r\n', {autoIndent: true})
expect(buffer.lineForRow(2)).toBe(' ')
})
it('does not adjust the indent of trailing lines if preserveTrailingLineIndentation is true', () => {
selection.setBufferRange([[5, 0], [5, 0]])
selection.insertText(' foo\n bar\n', {preserveTrailingLineIndentation: true, indentBasis: 1})
expect(buffer.lineForRow(6)).toBe(' bar')
})
})
describe('.fold()', () => {
it('folds the buffer range spanned by the selection', () => {
selection.setBufferRange([[0, 3], [1, 6]])
selection.fold()
expect(selection.getScreenRange()).toEqual([[0, 4], [0, 4]])
expect(selection.getBufferRange()).toEqual([[1, 6], [1, 6]])
expect(editor.lineTextForScreenRow(0)).toBe(`var${editor.displayLayer.foldCharacter}sort = function(items) {`)
expect(editor.isFoldedAtBufferRow(0)).toBe(true)
})
it("doesn't create a fold when the selection is empty", () => {
selection.setBufferRange([[0, 3], [0, 3]])
selection.fold()
expect(selection.getScreenRange()).toEqual([[0, 3], [0, 3]])
expect(selection.getBufferRange()).toEqual([[0, 3], [0, 3]])
expect(editor.lineTextForScreenRow(0)).toBe('var quicksort = function () {')
expect(editor.isFoldedAtBufferRow(0)).toBe(false)
})
})
})