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text-editor-spec.js
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text-editor-spec.js
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const {it, fit, ffit, fffit, beforeEach, afterEach, conditionPromise, timeoutPromise} = require('./async-spec-helpers')
const fs = require('fs')
const path = require('path')
const temp = require('temp').track()
const dedent = require('dedent')
const clipboard = require('../src/safe-clipboard')
const TextEditor = require('../src/text-editor')
const TextBuffer = require('text-buffer')
const TextMateLanguageMode = require('../src/text-mate-language-mode')
describe('TextEditor', () => {
let buffer, editor, lineLengths
beforeEach(async () => {
editor = await atom.workspace.open('sample.js')
buffer = editor.buffer
editor.update({autoIndent: false})
lineLengths = buffer.getLines().map(line => line.length)
await atom.packages.activatePackage('language-javascript')
})
it('generates unique ids for each editor', async () => {
// Deserialized editors are initialized with the serialized id. We can
// initialize an editor with what we expect to be the next id:
const deserialized = new TextEditor({id: editor.id+1})
expect(deserialized.id).toEqual(editor.id+1)
// The id generator should skip the id used up by the deserialized one:
const fresh = new TextEditor()
expect(fresh.id).toNotEqual(deserialized.id)
})
describe('when the editor is deserialized', () => {
it('restores selections and folds based on markers in the buffer', async () => {
editor.setSelectedBufferRange([[1, 2], [3, 4]])
editor.addSelectionForBufferRange([[5, 6], [7, 5]], {reversed: true})
editor.foldBufferRow(4)
expect(editor.isFoldedAtBufferRow(4)).toBeTruthy()
const buffer2 = await TextBuffer.deserialize(editor.buffer.serialize())
const editor2 = TextEditor.deserialize(editor.serialize(), {
assert: atom.assert,
textEditors: atom.textEditors,
project: {bufferForIdSync () { return buffer2 }}
})
expect(editor2.id).toBe(editor.id)
expect(editor2.getBuffer().getPath()).toBe(editor.getBuffer().getPath())
expect(editor2.getSelectedBufferRanges()).toEqual([[[1, 2], [3, 4]], [[5, 6], [7, 5]]])
expect(editor2.getSelections()[1].isReversed()).toBeTruthy()
expect(editor2.isFoldedAtBufferRow(4)).toBeTruthy()
editor2.destroy()
})
it("restores the editor's layout configuration", async () => {
editor.update({
softTabs: true,
atomicSoftTabs: false,
tabLength: 12,
softWrapped: true,
softWrapAtPreferredLineLength: true,
softWrapHangingIndentLength: 8,
invisibles: {space: 'S'},
showInvisibles: true,
editorWidthInChars: 120
})
// Force buffer and display layer to be deserialized as well, rather than
// reusing the same buffer instance
const buffer2 = await TextBuffer.deserialize(editor.buffer.serialize())
const editor2 = TextEditor.deserialize(editor.serialize(), {
assert: atom.assert,
textEditors: atom.textEditors,
project: {bufferForIdSync () { return buffer2 }}
})
expect(editor2.getSoftTabs()).toBe(editor.getSoftTabs())
expect(editor2.hasAtomicSoftTabs()).toBe(editor.hasAtomicSoftTabs())
expect(editor2.getTabLength()).toBe(editor.getTabLength())
expect(editor2.getSoftWrapColumn()).toBe(editor.getSoftWrapColumn())
expect(editor2.getSoftWrapHangingIndentLength()).toBe(editor.getSoftWrapHangingIndentLength())
expect(editor2.getInvisibles()).toEqual(editor.getInvisibles())
expect(editor2.getEditorWidthInChars()).toBe(editor.getEditorWidthInChars())
expect(editor2.displayLayer.tabLength).toBe(editor2.getTabLength())
expect(editor2.displayLayer.softWrapColumn).toBe(editor2.getSoftWrapColumn())
})
it('ignores buffers with retired IDs', () => {
const editor2 = TextEditor.deserialize(editor.serialize(), {
assert: atom.assert,
textEditors: atom.textEditors,
project: {bufferForIdSync () { return null }}
})
expect(editor2).toBeNull()
})
})
describe('.copy()', () => {
it('returns a different editor with the same initial state', () => {
expect(editor.getAutoHeight()).toBeFalsy()
expect(editor.getAutoWidth()).toBeFalsy()
expect(editor.getShowCursorOnSelection()).toBeTruthy()
const element = editor.getElement()
element.setHeight(100)
element.setWidth(100)
jasmine.attachToDOM(element)
editor.update({showCursorOnSelection: false})
editor.setSelectedBufferRange([[1, 2], [3, 4]])
editor.addSelectionForBufferRange([[5, 6], [7, 8]], {reversed: true})
editor.setScrollTopRow(3)
expect(editor.getScrollTopRow()).toBe(3)
editor.setScrollLeftColumn(4)
expect(editor.getScrollLeftColumn()).toBe(4)
editor.foldBufferRow(4)
expect(editor.isFoldedAtBufferRow(4)).toBeTruthy()
const editor2 = editor.copy()
const element2 = editor2.getElement()
element2.setHeight(100)
element2.setWidth(100)
jasmine.attachToDOM(element2)
expect(editor2.id).not.toBe(editor.id)
expect(editor2.getSelectedBufferRanges()).toEqual(editor.getSelectedBufferRanges())
expect(editor2.getSelections()[1].isReversed()).toBeTruthy()
expect(editor2.getScrollTopRow()).toBe(3)
expect(editor2.getScrollLeftColumn()).toBe(4)
expect(editor2.isFoldedAtBufferRow(4)).toBeTruthy()
expect(editor2.getAutoWidth()).toBe(false)
expect(editor2.getAutoHeight()).toBe(false)
expect(editor2.getShowCursorOnSelection()).toBeFalsy()
// editor2 can now diverge from its origin edit session
editor2.getLastSelection().setBufferRange([[2, 1], [4, 3]])
expect(editor2.getSelectedBufferRanges()).not.toEqual(editor.getSelectedBufferRanges())
editor2.unfoldBufferRow(4)
expect(editor2.isFoldedAtBufferRow(4)).not.toBe(editor.isFoldedAtBufferRow(4))
})
})
describe('.update()', () => {
it('updates the editor with the supplied config parameters', () => {
let changeSpy
const { element } = editor // force element initialization
element.setUpdatedSynchronously(false)
editor.update({showInvisibles: true})
editor.onDidChange(changeSpy = jasmine.createSpy('onDidChange'))
const returnedPromise = editor.update({
tabLength: 6,
softTabs: false,
softWrapped: true,
editorWidthInChars: 40,
showInvisibles: false,
mini: false,
lineNumberGutterVisible: false,
scrollPastEnd: true,
autoHeight: false,
maxScreenLineLength: 1000
})
expect(returnedPromise).toBe(element.component.getNextUpdatePromise())
expect(changeSpy.callCount).toBe(1)
expect(editor.getTabLength()).toBe(6)
expect(editor.getSoftTabs()).toBe(false)
expect(editor.isSoftWrapped()).toBe(true)
expect(editor.getEditorWidthInChars()).toBe(40)
expect(editor.getInvisibles()).toEqual({})
expect(editor.isMini()).toBe(false)
expect(editor.isLineNumberGutterVisible()).toBe(false)
expect(editor.getScrollPastEnd()).toBe(true)
expect(editor.getAutoHeight()).toBe(false)
})
})
describe('title', () => {
describe('.getTitle()', () => {
it("uses the basename of the buffer's path as its title, or 'untitled' if the path is undefined", () => {
expect(editor.getTitle()).toBe('sample.js')
buffer.setPath(undefined)
expect(editor.getTitle()).toBe('untitled')
})
})
describe('.getLongTitle()', () => {
it('returns file name when there is no opened file with identical name', () => {
expect(editor.getLongTitle()).toBe('sample.js')
buffer.setPath(undefined)
expect(editor.getLongTitle()).toBe('untitled')
})
it("returns '<filename> — <parent-directory>' when opened files have identical file names", async () => {
const editor1 = await atom.workspace.open(path.join('sample-theme-1', 'readme'))
const editor2 = await atom.workspace.open(path.join('sample-theme-2', 'readme'))
expect(editor1.getLongTitle()).toBe('readme \u2014 sample-theme-1')
expect(editor2.getLongTitle()).toBe('readme \u2014 sample-theme-2')
})
it("returns '<filename> — <parent-directories>' when opened files have identical file names in subdirectories", async () => {
const path1 = path.join('sample-theme-1', 'src', 'js')
const path2 = path.join('sample-theme-2', 'src', 'js')
const editor1 = await atom.workspace.open(path.join(path1, 'main.js'))
const editor2 = await atom.workspace.open(path.join(path2, 'main.js'))
expect(editor1.getLongTitle()).toBe(`main.js \u2014 ${path1}`)
expect(editor2.getLongTitle()).toBe(`main.js \u2014 ${path2}`)
})
it("returns '<filename> — <parent-directories>' when opened files have identical file and same parent dir name", async () => {
const editor1 = await atom.workspace.open(path.join('sample-theme-2', 'src', 'js', 'main.js'))
const editor2 = await atom.workspace.open(path.join('sample-theme-2', 'src', 'js', 'plugin', 'main.js'))
expect(editor1.getLongTitle()).toBe('main.js \u2014 js')
expect(editor2.getLongTitle()).toBe(`main.js \u2014 ${path.join('js', 'plugin')}`)
})
it('returns the filename when the editor is not in the workspace', async () => {
editor.onDidDestroy(() => {
expect(editor.getLongTitle()).toBe('sample.js')
})
await atom.workspace.getActivePane().close()
expect(editor.isDestroyed()).toBe(true)
})
})
it('notifies ::onDidChangeTitle observers when the underlying buffer path changes', () => {
const observed = []
editor.onDidChangeTitle(title => observed.push(title))
buffer.setPath('/foo/bar/baz.txt')
buffer.setPath(undefined)
expect(observed).toEqual(['baz.txt', 'untitled'])
})
})
describe('path', () => {
it('notifies ::onDidChangePath observers when the underlying buffer path changes', () => {
const observed = []
editor.onDidChangePath(filePath => observed.push(filePath))
buffer.setPath(__filename)
buffer.setPath(undefined)
expect(observed).toEqual([__filename, undefined])
})
})
describe('encoding', () => {
it('notifies ::onDidChangeEncoding observers when the editor encoding changes', () => {
const observed = []
editor.onDidChangeEncoding(encoding => observed.push(encoding))
editor.setEncoding('utf16le')
editor.setEncoding('utf16le')
editor.setEncoding('utf16be')
editor.setEncoding()
editor.setEncoding()
expect(observed).toEqual(['utf16le', 'utf16be', 'utf8'])
})
})
describe('cursor', () => {
describe('.getLastCursor()', () => {
it('returns the most recently created cursor', () => {
editor.addCursorAtScreenPosition([1, 0])
const lastCursor = editor.addCursorAtScreenPosition([2, 0])
expect(editor.getLastCursor()).toBe(lastCursor)
})
it('creates a new cursor at (0, 0) if the last cursor has been destroyed', () => {
editor.getLastCursor().destroy()
expect(editor.getLastCursor().getBufferPosition()).toEqual([0, 0])
})
})
describe('.getCursors()', () => {
it('creates a new cursor at (0, 0) if the last cursor has been destroyed', () => {
editor.getLastCursor().destroy()
expect(editor.getCursors()[0].getBufferPosition()).toEqual([0, 0])
})
})
describe('when the cursor moves', () => {
it('clears a goal column established by vertical movement', () => {
editor.setText('b')
editor.setCursorBufferPosition([0, 0])
editor.insertNewline()
editor.moveUp()
editor.insertText('a')
editor.moveDown()
expect(editor.getCursorBufferPosition()).toEqual([1, 1])
})
it('emits an event with the old position, new position, and the cursor that moved', () => {
const cursorCallback = jasmine.createSpy('cursor-changed-position')
const editorCallback = jasmine.createSpy('editor-changed-cursor-position')
editor.getLastCursor().onDidChangePosition(cursorCallback)
editor.onDidChangeCursorPosition(editorCallback)
editor.setCursorBufferPosition([2, 4])
expect(editorCallback).toHaveBeenCalled()
expect(cursorCallback).toHaveBeenCalled()
const eventObject = editorCallback.mostRecentCall.args[0]
expect(cursorCallback.mostRecentCall.args[0]).toEqual(eventObject)
expect(eventObject.oldBufferPosition).toEqual([0, 0])
expect(eventObject.oldScreenPosition).toEqual([0, 0])
expect(eventObject.newBufferPosition).toEqual([2, 4])
expect(eventObject.newScreenPosition).toEqual([2, 4])
expect(eventObject.cursor).toBe(editor.getLastCursor())
})
})
describe('.setCursorScreenPosition(screenPosition)', () => {
it('clears a goal column established by vertical movement', () => {
// set a goal column by moving down
editor.setCursorScreenPosition({row: 3, column: lineLengths[3]})
editor.moveDown()
expect(editor.getCursorScreenPosition().column).not.toBe(6)
// clear the goal column by explicitly setting the cursor position
editor.setCursorScreenPosition([4, 6])
expect(editor.getCursorScreenPosition().column).toBe(6)
editor.moveDown()
expect(editor.getCursorScreenPosition().column).toBe(6)
})
it('merges multiple cursors', () => {
editor.setCursorScreenPosition([0, 0])
editor.addCursorAtScreenPosition([0, 1])
const [cursor1, cursor2] = editor.getCursors()
editor.setCursorScreenPosition([4, 7])
expect(editor.getCursors().length).toBe(1)
expect(editor.getCursors()).toEqual([cursor1])
expect(editor.getCursorScreenPosition()).toEqual([4, 7])
})
describe('when soft-wrap is enabled and code is folded', () => {
beforeEach(() => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(50)
editor.foldBufferRowRange(2, 3)
})
it('positions the cursor at the buffer position that corresponds to the given screen position', () => {
editor.setCursorScreenPosition([9, 0])
expect(editor.getCursorBufferPosition()).toEqual([8, 11])
})
})
})
describe('.moveUp()', () => {
it('moves the cursor up', () => {
editor.setCursorScreenPosition([2, 2])
editor.moveUp()
expect(editor.getCursorScreenPosition()).toEqual([1, 2])
})
it('retains the goal column across lines of differing length', () => {
expect(lineLengths[6]).toBeGreaterThan(32)
editor.setCursorScreenPosition({row: 6, column: 32})
editor.moveUp()
expect(editor.getCursorScreenPosition().column).toBe(lineLengths[5])
editor.moveUp()
expect(editor.getCursorScreenPosition().column).toBe(lineLengths[4])
editor.moveUp()
expect(editor.getCursorScreenPosition().column).toBe(32)
})
describe('when the cursor is on the first line', () => {
it('moves the cursor to the beginning of the line, but retains the goal column', () => {
editor.setCursorScreenPosition([0, 4])
editor.moveUp()
expect(editor.getCursorScreenPosition()).toEqual([0, 0])
editor.moveDown()
expect(editor.getCursorScreenPosition()).toEqual([1, 4])
})
})
describe('when there is a selection', () => {
beforeEach(() => editor.setSelectedBufferRange([[4, 9], [5, 10]]))
it('moves above the selection', () => {
const cursor = editor.getLastCursor()
editor.moveUp()
expect(cursor.getBufferPosition()).toEqual([3, 9])
})
})
it('merges cursors when they overlap', () => {
editor.addCursorAtScreenPosition([1, 0])
const [cursor1, cursor2] = editor.getCursors()
editor.moveUp()
expect(editor.getCursors()).toEqual([cursor1])
expect(cursor1.getBufferPosition()).toEqual([0, 0])
})
describe('when the cursor was moved down from the beginning of an indented soft-wrapped line', () => {
it('moves to the beginning of the previous line', () => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(50)
editor.setCursorScreenPosition([3, 0])
editor.moveDown()
editor.moveDown()
editor.moveUp()
expect(editor.getCursorScreenPosition()).toEqual([4, 4])
})
})
})
describe('.moveDown()', () => {
it('moves the cursor down', () => {
editor.setCursorScreenPosition([2, 2])
editor.moveDown()
expect(editor.getCursorScreenPosition()).toEqual([3, 2])
})
it('retains the goal column across lines of differing length', () => {
editor.setCursorScreenPosition({row: 3, column: lineLengths[3]})
editor.moveDown()
expect(editor.getCursorScreenPosition().column).toBe(lineLengths[4])
editor.moveDown()
expect(editor.getCursorScreenPosition().column).toBe(lineLengths[5])
editor.moveDown()
expect(editor.getCursorScreenPosition().column).toBe(lineLengths[3])
})
describe('when the cursor is on the last line', () => {
it('moves the cursor to the end of line, but retains the goal column when moving back up', () => {
const lastLineIndex = buffer.getLines().length - 1
const lastLine = buffer.lineForRow(lastLineIndex)
expect(lastLine.length).toBeGreaterThan(0)
editor.setCursorScreenPosition({row: lastLineIndex, column: editor.getTabLength()})
editor.moveDown()
expect(editor.getCursorScreenPosition()).toEqual({row: lastLineIndex, column: lastLine.length})
editor.moveUp()
expect(editor.getCursorScreenPosition().column).toBe(editor.getTabLength())
})
it('retains a goal column of 0 when moving back up', () => {
const lastLineIndex = buffer.getLines().length - 1
const lastLine = buffer.lineForRow(lastLineIndex)
expect(lastLine.length).toBeGreaterThan(0)
editor.setCursorScreenPosition({row: lastLineIndex, column: 0})
editor.moveDown()
editor.moveUp()
expect(editor.getCursorScreenPosition().column).toBe(0)
})
})
describe('when the cursor is at the beginning of an indented soft-wrapped line', () => {
it("moves to the beginning of the line's continuation on the next screen row", () => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(50)
editor.setCursorScreenPosition([3, 0])
editor.moveDown()
expect(editor.getCursorScreenPosition()).toEqual([4, 4])
})
})
describe('when there is a selection', () => {
beforeEach(() => editor.setSelectedBufferRange([[4, 9], [5, 10]]))
it('moves below the selection', () => {
const cursor = editor.getLastCursor()
editor.moveDown()
expect(cursor.getBufferPosition()).toEqual([6, 10])
})
})
it('merges cursors when they overlap', () => {
editor.setCursorScreenPosition([12, 2])
editor.addCursorAtScreenPosition([11, 2])
const [cursor1, cursor2] = editor.getCursors()
editor.moveDown()
expect(editor.getCursors()).toEqual([cursor1])
expect(cursor1.getBufferPosition()).toEqual([12, 2])
})
})
describe('.moveLeft()', () => {
it('moves the cursor by one column to the left', () => {
editor.setCursorScreenPosition([1, 8])
editor.moveLeft()
expect(editor.getCursorScreenPosition()).toEqual([1, 7])
})
it('moves the cursor by n columns to the left', () => {
editor.setCursorScreenPosition([1, 8])
editor.moveLeft(4)
expect(editor.getCursorScreenPosition()).toEqual([1, 4])
})
it('moves the cursor by two rows up when the columnCount is longer than an entire line', () => {
editor.setCursorScreenPosition([2, 2])
editor.moveLeft(34)
expect(editor.getCursorScreenPosition()).toEqual([0, 29])
})
it('moves the cursor to the beginning columnCount is longer than the position in the buffer', () => {
editor.setCursorScreenPosition([1, 0])
editor.moveLeft(100)
expect(editor.getCursorScreenPosition()).toEqual([0, 0])
})
describe('when the cursor is in the first column', () => {
describe('when there is a previous line', () => {
it('wraps to the end of the previous line', () => {
editor.setCursorScreenPosition({row: 1, column: 0})
editor.moveLeft()
expect(editor.getCursorScreenPosition()).toEqual({row: 0, column: buffer.lineForRow(0).length})
})
it('moves the cursor by one row up and n columns to the left', () => {
editor.setCursorScreenPosition([1, 0])
editor.moveLeft(4)
expect(editor.getCursorScreenPosition()).toEqual([0, 26])
})
})
describe('when the next line is empty', () => {
it('wraps to the beginning of the previous line', () => {
editor.setCursorScreenPosition([11, 0])
editor.moveLeft()
expect(editor.getCursorScreenPosition()).toEqual([10, 0])
})
})
describe('when line is wrapped and follow previous line indentation', () => {
beforeEach(() => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(50)
})
it('wraps to the end of the previous line', () => {
editor.setCursorScreenPosition([4, 4])
editor.moveLeft()
expect(editor.getCursorScreenPosition()).toEqual([3, 46])
})
})
describe('when the cursor is on the first line', () => {
it('remains in the same position (0,0)', () => {
editor.setCursorScreenPosition({row: 0, column: 0})
editor.moveLeft()
expect(editor.getCursorScreenPosition()).toEqual({row: 0, column: 0})
})
it('remains in the same position (0,0) when columnCount is specified', () => {
editor.setCursorScreenPosition([0, 0])
editor.moveLeft(4)
expect(editor.getCursorScreenPosition()).toEqual([0, 0])
})
})
})
describe('when softTabs is enabled and the cursor is preceded by leading whitespace', () => {
it('skips tabLength worth of whitespace at a time', () => {
editor.setCursorBufferPosition([5, 6])
editor.moveLeft()
expect(editor.getCursorBufferPosition()).toEqual([5, 4])
})
})
describe('when there is a selection', () => {
beforeEach(() => editor.setSelectedBufferRange([[5, 22], [5, 27]]))
it('moves to the left of the selection', () => {
const cursor = editor.getLastCursor()
editor.moveLeft()
expect(cursor.getBufferPosition()).toEqual([5, 22])
editor.moveLeft()
expect(cursor.getBufferPosition()).toEqual([5, 21])
})
})
it('merges cursors when they overlap', () => {
editor.setCursorScreenPosition([0, 0])
editor.addCursorAtScreenPosition([0, 1])
const [cursor1, cursor2] = editor.getCursors()
editor.moveLeft()
expect(editor.getCursors()).toEqual([cursor1])
expect(cursor1.getBufferPosition()).toEqual([0, 0])
})
})
describe('.moveRight()', () => {
it('moves the cursor by one column to the right', () => {
editor.setCursorScreenPosition([3, 3])
editor.moveRight()
expect(editor.getCursorScreenPosition()).toEqual([3, 4])
})
it('moves the cursor by n columns to the right', () => {
editor.setCursorScreenPosition([3, 7])
editor.moveRight(4)
expect(editor.getCursorScreenPosition()).toEqual([3, 11])
})
it('moves the cursor by two rows down when the columnCount is longer than an entire line', () => {
editor.setCursorScreenPosition([0, 29])
editor.moveRight(34)
expect(editor.getCursorScreenPosition()).toEqual([2, 2])
})
it('moves the cursor to the end of the buffer when columnCount is longer than the number of characters following the cursor position', () => {
editor.setCursorScreenPosition([11, 5])
editor.moveRight(100)
expect(editor.getCursorScreenPosition()).toEqual([12, 2])
})
describe('when the cursor is on the last column of a line', () => {
describe('when there is a subsequent line', () => {
it('wraps to the beginning of the next line', () => {
editor.setCursorScreenPosition([0, buffer.lineForRow(0).length])
editor.moveRight()
expect(editor.getCursorScreenPosition()).toEqual([1, 0])
})
it('moves the cursor by one row down and n columns to the right', () => {
editor.setCursorScreenPosition([0, buffer.lineForRow(0).length])
editor.moveRight(4)
expect(editor.getCursorScreenPosition()).toEqual([1, 3])
})
})
describe('when the next line is empty', () => {
it('wraps to the beginning of the next line', () => {
editor.setCursorScreenPosition([9, 4])
editor.moveRight()
expect(editor.getCursorScreenPosition()).toEqual([10, 0])
})
})
describe('when the cursor is on the last line', () => {
it('remains in the same position', () => {
const lastLineIndex = buffer.getLines().length - 1
const lastLine = buffer.lineForRow(lastLineIndex)
expect(lastLine.length).toBeGreaterThan(0)
const lastPosition = {row: lastLineIndex, column: lastLine.length}
editor.setCursorScreenPosition(lastPosition)
editor.moveRight()
expect(editor.getCursorScreenPosition()).toEqual(lastPosition)
})
})
})
describe('when there is a selection', () => {
beforeEach(() => editor.setSelectedBufferRange([[5, 22], [5, 27]]))
it('moves to the left of the selection', () => {
const cursor = editor.getLastCursor()
editor.moveRight()
expect(cursor.getBufferPosition()).toEqual([5, 27])
editor.moveRight()
expect(cursor.getBufferPosition()).toEqual([5, 28])
})
})
it('merges cursors when they overlap', () => {
editor.setCursorScreenPosition([12, 2])
editor.addCursorAtScreenPosition([12, 1])
const [cursor1, cursor2] = editor.getCursors()
editor.moveRight()
expect(editor.getCursors()).toEqual([cursor1])
expect(cursor1.getBufferPosition()).toEqual([12, 2])
})
})
describe('.moveToTop()', () => {
it('moves the cursor to the top of the buffer', () => {
editor.setCursorScreenPosition([11, 1])
editor.addCursorAtScreenPosition([12, 0])
editor.moveToTop()
expect(editor.getCursors().length).toBe(1)
expect(editor.getCursorBufferPosition()).toEqual([0, 0])
})
})
describe('.moveToBottom()', () => {
it('moves the cursor to the bottom of the buffer', () => {
editor.setCursorScreenPosition([0, 0])
editor.addCursorAtScreenPosition([1, 0])
editor.moveToBottom()
expect(editor.getCursors().length).toBe(1)
expect(editor.getCursorBufferPosition()).toEqual([12, 2])
})
})
describe('.moveToBeginningOfScreenLine()', () => {
describe('when soft wrap is on', () => {
it('moves cursor to the beginning of the screen line', () => {
editor.setSoftWrapped(true)
editor.setEditorWidthInChars(10)
editor.setCursorScreenPosition([1, 2])
editor.moveToBeginningOfScreenLine()
const cursor = editor.getLastCursor()
expect(cursor.getScreenPosition()).toEqual([1, 0])
})
})
describe('when soft wrap is off', () => {
it('moves cursor to the beginning of the line', () => {
editor.setCursorScreenPosition([0, 5])
editor.addCursorAtScreenPosition([1, 7])
editor.moveToBeginningOfScreenLine()
expect(editor.getCursors().length).toBe(2)
const [cursor1, cursor2] = editor.getCursors()
expect(cursor1.getBufferPosition()).toEqual([0, 0])
expect(cursor2.getBufferPosition()).toEqual([1, 0])
})
})
})
describe('.moveToEndOfScreenLine()', () => {
describe('when soft wrap is on', () => {
it('moves cursor to the beginning of the screen line', () => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(10)
editor.setCursorScreenPosition([1, 2])
editor.moveToEndOfScreenLine()
const cursor = editor.getLastCursor()
expect(cursor.getScreenPosition()).toEqual([1, 9])
})
})
describe('when soft wrap is off', () => {
it('moves cursor to the end of line', () => {
editor.setCursorScreenPosition([0, 0])
editor.addCursorAtScreenPosition([1, 0])
editor.moveToEndOfScreenLine()
expect(editor.getCursors().length).toBe(2)
const [cursor1, cursor2] = editor.getCursors()
expect(cursor1.getBufferPosition()).toEqual([0, 29])
expect(cursor2.getBufferPosition()).toEqual([1, 30])
})
})
})
describe('.moveToBeginningOfLine()', () => {
it('moves cursor to the beginning of the buffer line', () => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(10)
editor.setCursorScreenPosition([1, 2])
editor.moveToBeginningOfLine()
const cursor = editor.getLastCursor()
expect(cursor.getScreenPosition()).toEqual([0, 0])
})
})
describe('.moveToEndOfLine()', () => {
it('moves cursor to the end of the buffer line', () => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(10)
editor.setCursorScreenPosition([0, 2])
editor.moveToEndOfLine()
const cursor = editor.getLastCursor()
expect(cursor.getScreenPosition()).toEqual([4, 4])
})
})
describe('.moveToFirstCharacterOfLine()', () => {
describe('when soft wrap is on', () => {
it("moves to the first character of the current screen line or the beginning of the screen line if it's already on the first character", () => {
editor.setSoftWrapped(true)
editor.setDefaultCharWidth(1)
editor.setEditorWidthInChars(10)
editor.setCursorScreenPosition([2, 5])
editor.addCursorAtScreenPosition([8, 7])
editor.moveToFirstCharacterOfLine()
const [cursor1, cursor2] = editor.getCursors()
expect(cursor1.getScreenPosition()).toEqual([2, 0])
expect(cursor2.getScreenPosition()).toEqual([8, 2])
editor.moveToFirstCharacterOfLine()
expect(cursor1.getScreenPosition()).toEqual([2, 0])
expect(cursor2.getScreenPosition()).toEqual([8, 2])
})
})
describe('when soft wrap is off', () => {
it("moves to the first character of the current line or the beginning of the line if it's already on the first character", () => {
editor.setCursorScreenPosition([0, 5])
editor.addCursorAtScreenPosition([1, 7])
editor.moveToFirstCharacterOfLine()
const [cursor1, cursor2] = editor.getCursors()
expect(cursor1.getBufferPosition()).toEqual([0, 0])
expect(cursor2.getBufferPosition()).toEqual([1, 2])
editor.moveToFirstCharacterOfLine()
expect(cursor1.getBufferPosition()).toEqual([0, 0])
expect(cursor2.getBufferPosition()).toEqual([1, 0])
})
it('moves to the beginning of the line if it only contains whitespace ', () => {
editor.setText('first\n \nthird')
editor.setCursorScreenPosition([1, 2])
editor.moveToFirstCharacterOfLine()
const cursor = editor.getLastCursor()
expect(cursor.getBufferPosition()).toEqual([1, 0])
})
describe('when invisible characters are enabled with soft tabs', () => {
it('moves to the first character of the current line without being confused by the invisible characters', () => {
editor.update({showInvisibles: true})
editor.setCursorScreenPosition([1, 7])
editor.moveToFirstCharacterOfLine()
expect(editor.getCursorBufferPosition()).toEqual([1, 2])
editor.moveToFirstCharacterOfLine()
expect(editor.getCursorBufferPosition()).toEqual([1, 0])
})
})
describe('when invisible characters are enabled with hard tabs', () => {
it('moves to the first character of the current line without being confused by the invisible characters', () => {
editor.update({showInvisibles: true})
buffer.setTextInRange([[1, 0], [1, Infinity]], '\t\t\ta', {normalizeLineEndings: false})
editor.setCursorScreenPosition([1, 7])
editor.moveToFirstCharacterOfLine()
expect(editor.getCursorBufferPosition()).toEqual([1, 3])
editor.moveToFirstCharacterOfLine()
expect(editor.getCursorBufferPosition()).toEqual([1, 0])
})
})
})
it("clears the goal column", () => {
editor.setText('first\n\nthird')
editor.setCursorScreenPosition([0, 3])
editor.moveDown()
editor.moveToFirstCharacterOfLine()
editor.moveDown()
expect(editor.getCursorBufferPosition()).toEqual([2, 0])
})
})
describe('.moveToBeginningOfWord()', () => {
it('moves the cursor to the beginning of the word', () => {
editor.setCursorBufferPosition([0, 8])
editor.addCursorAtBufferPosition([1, 12])
editor.addCursorAtBufferPosition([3, 0])
const [cursor1, cursor2, cursor3] = editor.getCursors()
editor.moveToBeginningOfWord()
expect(cursor1.getBufferPosition()).toEqual([0, 4])
expect(cursor2.getBufferPosition()).toEqual([1, 11])
expect(cursor3.getBufferPosition()).toEqual([2, 39])
})
it('does not fail at position [0, 0]', () => {
editor.setCursorBufferPosition([0, 0])
editor.moveToBeginningOfWord()
})
it('treats lines with only whitespace as a word', () => {
editor.setCursorBufferPosition([11, 0])
editor.moveToBeginningOfWord()
expect(editor.getCursorBufferPosition()).toEqual([10, 0])
})
it('treats lines with only whitespace as a word (CRLF line ending)', () => {
editor.buffer.setText(buffer.getText().replace(/\n/g, '\r\n'))
editor.setCursorBufferPosition([11, 0])
editor.moveToBeginningOfWord()
expect(editor.getCursorBufferPosition()).toEqual([10, 0])
})
it('works when the current line is blank', () => {
editor.setCursorBufferPosition([10, 0])
editor.moveToBeginningOfWord()
expect(editor.getCursorBufferPosition()).toEqual([9, 2])
})
it('works when the current line is blank (CRLF line ending)', () => {
editor.buffer.setText(buffer.getText().replace(/\n/g, '\r\n'))
editor.setCursorBufferPosition([10, 0])
editor.moveToBeginningOfWord()
expect(editor.getCursorBufferPosition()).toEqual([9, 2])
editor.buffer.setText(buffer.getText().replace(/\r\n/g, '\n'))
})
})
describe('.moveToPreviousWordBoundary()', () => {
it('moves the cursor to the previous word boundary', () => {
editor.setCursorBufferPosition([0, 8])
editor.addCursorAtBufferPosition([2, 0])
editor.addCursorAtBufferPosition([2, 4])
editor.addCursorAtBufferPosition([3, 14])
const [cursor1, cursor2, cursor3, cursor4] = editor.getCursors()
editor.moveToPreviousWordBoundary()
expect(cursor1.getBufferPosition()).toEqual([0, 4])
expect(cursor2.getBufferPosition()).toEqual([1, 30])
expect(cursor3.getBufferPosition()).toEqual([2, 0])
expect(cursor4.getBufferPosition()).toEqual([3, 13])
})
})
describe('.moveToNextWordBoundary()', () => {
it('moves the cursor to the previous word boundary', () => {
editor.setCursorBufferPosition([0, 8])
editor.addCursorAtBufferPosition([2, 40])
editor.addCursorAtBufferPosition([3, 0])
editor.addCursorAtBufferPosition([3, 30])
const [cursor1, cursor2, cursor3, cursor4] = editor.getCursors()
editor.moveToNextWordBoundary()
expect(cursor1.getBufferPosition()).toEqual([0, 13])
expect(cursor2.getBufferPosition()).toEqual([3, 0])
expect(cursor3.getBufferPosition()).toEqual([3, 4])
expect(cursor4.getBufferPosition()).toEqual([3, 31])
})
})
describe('.moveToEndOfWord()', () => {
it('moves the cursor to the end of the word', () => {
editor.setCursorBufferPosition([0, 6])
editor.addCursorAtBufferPosition([1, 10])
editor.addCursorAtBufferPosition([2, 40])
const [cursor1, cursor2, cursor3] = editor.getCursors()
editor.moveToEndOfWord()
expect(cursor1.getBufferPosition()).toEqual([0, 13])
expect(cursor2.getBufferPosition()).toEqual([1, 12])
expect(cursor3.getBufferPosition()).toEqual([3, 7])
})
it('does not blow up when there is no next word', () => {
editor.setCursorBufferPosition([Infinity, Infinity])
const endPosition = editor.getCursorBufferPosition()
editor.moveToEndOfWord()
expect(editor.getCursorBufferPosition()).toEqual(endPosition)
})
it('treats lines with only whitespace as a word', () => {
editor.setCursorBufferPosition([9, 4])
editor.moveToEndOfWord()
expect(editor.getCursorBufferPosition()).toEqual([10, 0])
})
it('treats lines with only whitespace as a word (CRLF line ending)', () => {
editor.buffer.setText(buffer.getText().replace(/\n/g, '\r\n'))
editor.setCursorBufferPosition([9, 4])
editor.moveToEndOfWord()
expect(editor.getCursorBufferPosition()).toEqual([10, 0])
})
it('works when the current line is blank', () => {
editor.setCursorBufferPosition([10, 0])
editor.moveToEndOfWord()
expect(editor.getCursorBufferPosition()).toEqual([11, 8])
})
it('works when the current line is blank (CRLF line ending)', () => {
editor.buffer.setText(buffer.getText().replace(/\n/g, '\r\n'))
editor.setCursorBufferPosition([10, 0])
editor.moveToEndOfWord()
expect(editor.getCursorBufferPosition()).toEqual([11, 8])