pulsar/spec/app/selection-spec.coffee

75 lines
2.8 KiB
CoffeeScript

Buffer = require 'text-buffer'
EditSession = require 'edit-session'
Range = require 'range'
describe "Selection", ->
[buffer, editSession, selection] = []
beforeEach ->
buffer = new Buffer(require.resolve('fixtures/sample.js'))
editSession = new EditSession(buffer: buffer, tabLength: 2)
selection = editSession.getSelection()
afterEach ->
buffer.destroy()
describe ".deleteSelectedText()", ->
describe "when nothing is selected", ->
it "deletes nothing", ->
selection.setBufferRange new Range([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 new Range([0,4], [0,14])
selection.deleteSelectedText()
expect(buffer.lineForRow(0)).toBe "var = function () {"
endOfLine = buffer.lineForRow(0).length
selection.setBufferRange new Range([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 new Range([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 "when only the selection's tail is moved (regression)", ->
it "emits the 'screen-range-changed' event", ->
selection.setBufferRange([[2, 0], [2, 10]], reverse: true)
changeScreenRangeHandler = jasmine.createSpy('changeScreenRangeHandler')
selection.on 'screen-range-changed', 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]])
selection.destroy()
expect(selection.marker.isDestroyed()).toBeTruthy()