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text-editor-spec.coffee
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clipboard = require 'clipboard'
TextEditor = require '../src/text-editor'
describe "TextEditor", ->
[buffer, editor, lineLengths] = []
convertToHardTabs = (buffer) ->
buffer.setText(buffer.getText().replace(/[ ]{2}/g, "\t"))
beforeEach ->
waitsForPromise ->
atom.project.open('sample.js', autoIndent: false).then (o) -> editor = o
runs ->
buffer = editor.buffer
lineLengths = buffer.getLines().map (line) -> line.length
waitsForPromise ->
atom.packages.activatePackage('language-javascript')
describe "when the editor is deserialized", ->
it "restores selections and folds based on markers in the buffer", ->
editor.setSelectedBufferRange([[1, 2], [3, 4]])
editor.addSelectionForBufferRange([[5, 6], [7, 5]], reversed: true)
editor.foldBufferRow(4)
expect(editor.isFoldedAtBufferRow(4)).toBeTruthy()
editor2 = editor.testSerialization()
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 "preserves the invisibles setting", ->
atom.config.set('editor.showInvisibles', true)
previousInvisibles = editor.displayBuffer.invisibles
editor2 = editor.testSerialization()
expect(editor2.displayBuffer.invisibles).toEqual previousInvisibles
expect(editor2.displayBuffer.tokenizedBuffer.invisibles).toEqual previousInvisibles
it "updates invisibles if the settings have changed between serialization and deserialization", ->
atom.config.set('editor.showInvisibles', true)
previousInvisibles = editor.displayBuffer.invisibles
state = editor.serialize()
atom.config.set('editor.invisibles', eol: '?')
editor2 = TextEditor.deserialize(state)
expect(editor2.displayBuffer.invisibles.eol).toBe '?'
expect(editor2.displayBuffer.tokenizedBuffer.invisibles.eol).toBe '?'
describe "when the editor is constructed with an initialLine option", ->
it "positions the cursor on the specified line", ->
editor = null
waitsForPromise ->
atom.workspace.open('sample.less', initialLine: 5).then (o) -> editor = o
runs ->
buffer = editor.buffer
expect(editor.getLastCursor().getBufferPosition().row).toEqual 5
expect(editor.getLastCursor().getBufferPosition().column).toEqual 0
describe "when the editor is constructed with an initialColumn option", ->
it "positions the cursor on the specified column", ->
editor = null
waitsForPromise ->
atom.workspace.open('sample.less', initialColumn: 8).then (o) -> editor = o
runs ->
buffer = editor.buffer
expect(editor.getLastCursor().getBufferPosition().row).toEqual 0
expect(editor.getLastCursor().getBufferPosition().column).toEqual 8
describe ".copy()", ->
it "returns a different edit session with the same initial state", ->
editor.setSelectedBufferRange([[1, 2], [3, 4]])
editor.addSelectionForBufferRange([[5, 6], [7, 8]], reversed: true)
editor.foldBufferRow(4)
expect(editor.isFoldedAtBufferRow(4)).toBeTruthy()
editor2 = editor.copy()
expect(editor2.id).not.toBe editor.id
expect(editor2.getSelectedBufferRanges()).toEqual editor.getSelectedBufferRanges()
expect(editor2.getSelections()[1].isReversed()).toBeTruthy()
expect(editor2.isFoldedAtBufferRow(4)).toBeTruthy()
# 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 "config defaults", ->
it "uses the `editor.tabLength`, `editor.softWrap`, and `editor.softTabs` config values", ->
editor1 = null
editor2 = null
atom.config.set('editor.tabLength', 4)
atom.config.set('editor.softWrap', true)
atom.config.set('editor.softTabs', false)
waitsForPromise ->
atom.workspace.open('a').then (o) -> editor1 = o
runs ->
expect(editor1.getTabLength()).toBe 4
expect(editor1.isSoftWrapped()).toBe true
expect(editor1.getSoftTabs()).toBe false
atom.config.set('editor.tabLength', 8)
atom.config.set('editor.softWrap', false)
atom.config.set('editor.softTabs', true)
waitsForPromise ->
atom.workspace.open('b').then (o) -> editor2 = o
runs ->
expect(editor2.getTabLength()).toBe 8
expect(editor2.isSoftWrapped()).toBe false
expect(editor2.getSoftTabs()).toBe true
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 "appends the name of the containing directory to the basename of the file", ->
expect(editor.getLongTitle()).toBe 'sample.js - fixtures'
buffer.setPath(undefined)
expect(editor.getLongTitle()).toBe 'untitled'
it "notifies ::onDidChangeTitle observers when the underlying buffer path changes", ->
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", ->
observed = []
editor.onDidChangePath (filePath) -> observed.push(filePath)
buffer.setPath(__filename)
buffer.setPath(undefined)
expect(observed).toEqual [__filename, undefined]
describe "cursor", ->
describe ".getLastCursor()", ->
it "returns the most recently created cursor", ->
editor.addCursorAtScreenPosition([1, 0])
lastCursor = editor.addCursorAtScreenPosition([2, 0])
expect(editor.getLastCursor()).toBe lastCursor
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", ->
editor.onDidChangeCursorPosition positionChangedHandler = jasmine.createSpy()
editor.setCursorBufferPosition([2, 4])
expect(positionChangedHandler).toHaveBeenCalled()
eventObject = positionChangedHandler.mostRecentCall.args[0]
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])
[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.setEditorWidthInChars(50)
editor.createFold(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", ->
cursor = editor.getLastCursor()
editor.moveUp()
expect(cursor.getBufferPosition()).toEqual [3, 9]
it "merges cursors when they overlap", ->
editor.addCursorAtScreenPosition([1, 0])
[cursor1, cursor2] = editor.getCursors()
editor.moveUp()
expect(editor.getCursors()).toEqual [cursor1]
expect(cursor1.getBufferPosition()).toEqual [0,0]
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", ->
lastLineIndex = buffer.getLines().length - 1
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", ->
lastLineIndex = buffer.getLines().length - 1
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 there is a selection", ->
beforeEach ->
editor.setSelectedBufferRange([[4, 9],[5, 10]])
it "moves below the selection", ->
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])
[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 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", ->
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])
[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", ->
lastLineIndex = buffer.getLines().length - 1
lastLine = buffer.lineForRow(lastLineIndex)
expect(lastLine.length).toBeGreaterThan(0)
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", ->
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])
[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 cusor 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()
cursor = editor.getLastCursor()
expect(cursor.getScreenPosition()).toEqual [1, 0]
describe "when soft wrap is off", ->
it "moves cursor to the beginning of then line", ->
editor.setCursorScreenPosition [0,5]
editor.addCursorAtScreenPosition [1,7]
editor.moveToBeginningOfScreenLine()
expect(editor.getCursors().length).toBe 2
[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.setEditorWidthInChars(10)
editor.setCursorScreenPosition([1, 2])
editor.moveToEndOfScreenLine()
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
[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.setEditorWidthInChars(10)
editor.setCursorScreenPosition([1, 2])
editor.moveToBeginningOfLine()
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.setEditorWidthInChars(10)
editor.setCursorScreenPosition([0, 2])
editor.moveToEndOfLine()
cursor = editor.getLastCursor()
expect(cursor.getScreenPosition()).toEqual [3, 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.setEditorWidthInChars(10)
editor.setCursorScreenPosition [2,5]
editor.addCursorAtScreenPosition [8,7]
editor.moveToFirstCharacterOfLine()
[cursor1, cursor2] = editor.getCursors()
expect(cursor1.getScreenPosition()).toEqual [2,0]
expect(cursor2.getScreenPosition()).toEqual [8,4]
editor.moveToFirstCharacterOfLine()
expect(cursor1.getScreenPosition()).toEqual [2,0]
expect(cursor2.getScreenPosition()).toEqual [8,0]
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()
[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()
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", ->
atom.config.set('editor.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", ->
atom.config.set('editor.showInvisibles', true)
buffer.setTextInRange([[1, 0], [1, Infinity]], '\t\t\ta', false)
editor.setCursorScreenPosition [1,7]
editor.moveToFirstCharacterOfLine()
expect(editor.getCursorBufferPosition()).toEqual [1,3]
editor.moveToFirstCharacterOfLine()
expect(editor.getCursorBufferPosition()).toEqual [1,0]
describe ".moveToBeginningOfWord()", ->
it "moves the cursor to the beginning of the word", ->
editor.setCursorBufferPosition [0, 8]
editor.addCursorAtBufferPosition [1, 12]
editor.addCursorAtBufferPosition [3, 0]
[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 "works when the current line is blank", ->
editor.setCursorBufferPosition([10, 0])
editor.moveToBeginningOfWord()
expect(editor.getCursorBufferPosition()).toEqual [9, 2]
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]
[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]
[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]
[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]
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 "works when the current line is blank", ->
editor.setCursorBufferPosition([10, 0])
editor.moveToEndOfWord()
expect(editor.getCursorBufferPosition()).toEqual [11, 8]
describe ".moveToBeginningOfNextWord()", ->
it "moves the cursor before the first character of the next word", ->
editor.setCursorBufferPosition [0,6]
editor.addCursorAtBufferPosition [1,11]
editor.addCursorAtBufferPosition [2,0]
[cursor1, cursor2, cursor3] = editor.getCursors()
editor.moveToBeginningOfNextWord()
expect(cursor1.getBufferPosition()).toEqual [0, 14]
expect(cursor2.getBufferPosition()).toEqual [1, 13]
expect(cursor3.getBufferPosition()).toEqual [2, 4]
# When the cursor is on whitespace
editor.setText("ab cde- ")
editor.setCursorBufferPosition [0,2]
cursor = editor.getLastCursor()
editor.moveToBeginningOfNextWord()
expect(cursor.getBufferPosition()).toEqual [0, 3]
it "does not blow up when there is no next word", ->
editor.setCursorBufferPosition [Infinity, Infinity]
endPosition = editor.getCursorBufferPosition()
editor.moveToBeginningOfNextWord()
expect(editor.getCursorBufferPosition()).toEqual endPosition
it "treats lines with only whitespace as a word", ->
editor.setCursorBufferPosition([9, 4])
editor.moveToBeginningOfNextWord()
expect(editor.getCursorBufferPosition()).toEqual [10, 0]
it "works when the current line is blank", ->
editor.setCursorBufferPosition([10, 0])
editor.moveToBeginningOfNextWord()
expect(editor.getCursorBufferPosition()).toEqual [11, 9]
describe ".moveToBeginningOfNextParagraph()", ->
it "moves the cursor before the first line of the next paragraph", ->
editor.setCursorBufferPosition [0,6]
cursor = editor.getLastCursor()
editor.moveToBeginningOfNextParagraph()
expect(cursor.getBufferPosition()).toEqual { row : 10, column : 0 }
editor.setText("")
editor.setCursorBufferPosition [0,0]
cursor = editor.getLastCursor()
editor.moveToBeginningOfNextParagraph()
expect(cursor.getBufferPosition()).toEqual [0, 0]
describe ".moveToBeginningOfPreviousParagraph()", ->
it "moves the cursor before the first line of the pevious paragraph", ->
editor.setCursorBufferPosition [10,0]
cursor = editor.getLastCursor()
editor.moveToBeginningOfPreviousParagraph()
expect(cursor.getBufferPosition()).toEqual { row : 0, column : 0 }
editor.setText("")
editor.setCursorBufferPosition [0,0]
cursor = editor.getLastCursor()
editor.moveToBeginningOfPreviousParagraph()
expect(cursor.getBufferPosition()).toEqual [0, 0]
describe ".getCurrentParagraphBufferRange()", ->
it "returns the buffer range of the current paragraph, delimited by blank lines or the beginning / end of the file", ->
buffer.setText """
I am the first paragraph,
bordered by the beginning of
the file
#{' '}
I am the second paragraph
with blank lines above and below
me.
I am the last paragraph,
bordered by the end of the file.
"""
# in a paragraph
editor.setCursorBufferPosition([1, 7])
expect(editor.getCurrentParagraphBufferRange()).toEqual [[0, 0], [2, 8]]
editor.setCursorBufferPosition([7, 1])
expect(editor.getCurrentParagraphBufferRange()).toEqual [[5, 0], [7, 3]]
editor.setCursorBufferPosition([9, 10])
expect(editor.getCurrentParagraphBufferRange()).toEqual [[9, 0], [10, 32]]
# between paragraphs
editor.setCursorBufferPosition([3, 1])
expect(editor.getCurrentParagraphBufferRange()).toBeUndefined()
describe "::getCursorScreenPositions()", ->
it "returns the cursor positions in the order they were added", ->
editor.foldBufferRow(4)
cursor1 = editor.addCursorAtBufferPosition([8, 5])
cursor2 = editor.addCursorAtBufferPosition([3, 5])
expect(editor.getCursorScreenPositions()).toEqual [[0, 0], [5, 5], [3, 5]]
describe "::getCursorsOrderedByBufferPosition()", ->
it "returns all cursors ordered by buffer positions", ->
originalCursor = editor.getLastCursor()
cursor1 = editor.addCursorAtBufferPosition([8, 5])
cursor2 = editor.addCursorAtBufferPosition([4, 5])
expect(editor.getCursorsOrderedByBufferPosition()).toEqual [originalCursor, cursor2, cursor1]
describe "addCursorAtScreenPosition(screenPosition)", ->
describe "when a cursor already exists at the position", ->
it "returns the existing cursor", ->
cursor1 = editor.addCursorAtScreenPosition([0,2])
cursor2 = editor.addCursorAtScreenPosition([0,2])
expect(cursor2.marker).toBe cursor1.marker
describe "addCursorAtBufferPosition(bufferPosition)", ->
describe "when a cursor already exists at the position", ->
it "returns the existing cursor", ->
cursor1 = editor.addCursorAtBufferPosition([1,4])
cursor2 = editor.addCursorAtBufferPosition([1,4])
expect(cursor2.marker).toBe cursor1.marker
describe "autoscroll", ->
beforeEach ->
editor.manageScrollPosition = true
editor.setVerticalScrollMargin(2)
editor.setHorizontalScrollMargin(2)
editor.setLineHeightInPixels(10)
editor.setDefaultCharWidth(10)
editor.setHorizontalScrollbarHeight(0)
editor.setHeight(5.5 * 10)
editor.setWidth(5.5 * 10)
it "scrolls down when the last cursor gets closer than ::verticalScrollMargin to the bottom of the editor", ->
expect(editor.getScrollTop()).toBe 0
expect(editor.getScrollBottom()).toBe 5.5 * 10
editor.setCursorScreenPosition([2, 0])
expect(editor.getScrollBottom()).toBe 5.5 * 10
editor.moveDown()
expect(editor.getScrollBottom()).toBe 6 * 10
editor.moveDown()
expect(editor.getScrollBottom()).toBe 7 * 10
it "scrolls up when the last cursor gets closer than ::verticalScrollMargin to the top of the editor", ->
editor.setCursorScreenPosition([11, 0])
editor.setScrollBottom(editor.getScrollHeight())
editor.moveUp()
expect(editor.getScrollBottom()).toBe editor.getScrollHeight()
editor.moveUp()
expect(editor.getScrollTop()).toBe 7 * 10
editor.moveUp()
expect(editor.getScrollTop()).toBe 6 * 10
it "scrolls right when the last cursor gets closer than ::horizontalScrollMargin to the right of the editor", ->
expect(editor.getScrollLeft()).toBe 0
expect(editor.getScrollRight()).toBe 5.5 * 10
editor.setCursorScreenPosition([0, 2])
expect(editor.getScrollRight()).toBe 5.5 * 10
editor.moveRight()
expect(editor.getScrollRight()).toBe 6 * 10
editor.moveRight()
expect(editor.getScrollRight()).toBe 7 * 10
it "scrolls left when the last cursor gets closer than ::horizontalScrollMargin to the left of the editor", ->
editor.setScrollRight(editor.getScrollWidth())
editor.setCursorScreenPosition([6, 62])
expect(editor.getScrollRight()).toBe editor.getScrollWidth()
editor.moveLeft()
expect(editor.getScrollLeft()).toBe 59 * 10
editor.moveLeft()
expect(editor.getScrollLeft()).toBe 58 * 10
it "scrolls down when inserting lines makes the document longer than the editor's height", ->
editor.setCursorScreenPosition([13, Infinity])
editor.insertNewline()
expect(editor.getScrollBottom()).toBe 14 * 10
editor.insertNewline()
expect(editor.getScrollBottom()).toBe 15 * 10
it "autoscrolls to the cursor when it moves due to undo", ->
editor.insertText('abc')
editor.setScrollTop(Infinity)
editor.undo()
expect(editor.getScrollTop()).toBe 0
describe "selection", ->
selection = null
beforeEach ->
selection = editor.getLastSelection()
describe "when the selection range changes", ->
it "emits an event with the old range, new range, and the selection that moved", ->
editor.setSelectedBufferRange([[3, 0], [4, 5]])
editor.onDidChangeSelectionRange rangeChangedHandler = jasmine.createSpy()
editor.selectToBufferPosition([6, 2])
expect(rangeChangedHandler).toHaveBeenCalled()
eventObject = rangeChangedHandler.mostRecentCall.args[0]
expect(eventObject.oldBufferRange).toEqual [[3, 0], [4, 5]]
expect(eventObject.oldScreenRange).toEqual [[3, 0], [4, 5]]
expect(eventObject.newBufferRange).toEqual [[3, 0], [6, 2]]
expect(eventObject.newScreenRange).toEqual [[3, 0], [6, 2]]
expect(eventObject.selection).toBe selection
describe ".selectUp/Down/Left/Right()", ->
it "expands each selection to its cursor's new location", ->
editor.setSelectedBufferRanges([[[0,9], [0,13]], [[3,16], [3,21]]])
[selection1, selection2] = editor.getSelections()
editor.selectRight()
expect(selection1.getBufferRange()).toEqual [[0,9], [0,14]]
expect(selection2.getBufferRange()).toEqual [[3,16], [3,22]]
editor.selectLeft()
editor.selectLeft()
expect(selection1.getBufferRange()).toEqual [[0,9], [0,12]]
expect(selection2.getBufferRange()).toEqual [[3,16], [3,20]]
editor.selectDown()
expect(selection1.getBufferRange()).toEqual [[0,9], [1,12]]
expect(selection2.getBufferRange()).toEqual [[3,16], [4,20]]
editor.selectUp()
expect(selection1.getBufferRange()).toEqual [[0,9], [0,12]]
expect(selection2.getBufferRange()).toEqual [[3,16], [3,20]]
it "merges selections when they intersect when moving down", ->
editor.setSelectedBufferRanges([[[0,9], [0,13]], [[1,10], [1,20]], [[2,15], [3,25]]])
[selection1, selection2, selection3] = editor.getSelections()
editor.selectDown()
expect(editor.getSelections()).toEqual [selection1]
expect(selection1.getScreenRange()).toEqual([[0, 9], [4, 25]])
expect(selection1.isReversed()).toBeFalsy()
it "merges selections when they intersect when moving up", ->
editor.setSelectedBufferRanges([[[0,9], [0,13]], [[1,10], [1,20]]], reversed: true)
[selection1, selection2] = editor.getSelections()
editor.selectUp()
expect(editor.getSelections().length).toBe 1
expect(editor.getSelections()).toEqual [selection1]
expect(selection1.getScreenRange()).toEqual([[0, 0], [1, 20]])
expect(selection1.isReversed()).toBeTruthy()
it "merges selections when they intersect when moving left", ->
editor.setSelectedBufferRanges([[[0,9], [0,13]], [[0,13], [1,20]]], reversed: true)
[selection1, selection2] = editor.getSelections()
editor.selectLeft()
expect(editor.getSelections()).toEqual [selection1]
expect(selection1.getScreenRange()).toEqual([[0, 8], [1, 20]])
expect(selection1.isReversed()).toBeTruthy()
it "merges selections when they intersect when moving right", ->
editor.setSelectedBufferRanges([[[0,9], [0,14]], [[0,14], [1,20]]])
[selection1, selection2] = editor.getSelections()
editor.selectRight()
expect(editor.getSelections()).toEqual [selection1]
expect(selection1.getScreenRange()).toEqual([[0, 9], [1, 21]])
expect(selection1.isReversed()).toBeFalsy()
describe "when counts are passed into the selection functions", ->
it "expands each selection to its cursor's new location", ->
editor.setSelectedBufferRanges([[[0,9], [0,13]], [[3,16], [3,21]]])
[selection1, selection2] = editor.getSelections()
editor.selectRight(2)
expect(selection1.getBufferRange()).toEqual [[0,9], [0,15]]
expect(selection2.getBufferRange()).toEqual [[3,16], [3,23]]
editor.selectLeft(3)
expect(selection1.getBufferRange()).toEqual [[0,9], [0,12]]
expect(selection2.getBufferRange()).toEqual [[3,16], [3,20]]
editor.selectDown(3)
expect(selection1.getBufferRange()).toEqual [[0,9], [3,12]]
expect(selection2.getBufferRange()).toEqual [[3,16], [6,20]]
editor.selectUp(2)
expect(selection1.getBufferRange()).toEqual [[0,9], [1,12]]
expect(selection2.getBufferRange()).toEqual [[3,16], [4,20]]
describe ".selectToBufferPosition(bufferPosition)", ->