mirror of
https://github.com/pulsar-edit/pulsar.git
synced 2024-09-22 00:19:24 +03:00
457 lines
18 KiB
CoffeeScript
457 lines
18 KiB
CoffeeScript
Project = require 'project'
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Buffer = require 'buffer'
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fs = require 'fs'
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describe 'Buffer', ->
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[filePath, fileContents, buffer] = []
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beforeEach ->
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filePath = require.resolve('fixtures/sample.js')
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fileContents = fs.read(filePath)
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buffer = new Buffer(filePath)
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describe 'constructor', ->
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describe "when given a path", ->
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describe "when a file exists for the path", ->
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it "loads the contents of that file", ->
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filePath = require.resolve 'fixtures/sample.txt'
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buffer = new Buffer(filePath)
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expect(buffer.getText()).toBe fs.read(filePath)
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describe "when no file exists for the path", ->
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it "creates an empty buffer", ->
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filePath = "does-not-exist.txt"
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expect(fs.exists(filePath)).toBeFalsy()
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buffer = new Buffer(filePath)
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expect(buffer.getText()).toBe ""
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describe "when no path is given", ->
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it "creates an empty buffer", ->
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buffer = new Buffer
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expect(buffer.getText()).toBe ""
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describe '.deserialize(state, project)', ->
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project = null
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beforeEach ->
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project = new Project(fs.directory(filePath))
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describe 'when the state has a path', ->
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it 'use the project to open the path', ->
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savedBuffer = project.open(filePath)
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buffer = Buffer.deserialize(savedBuffer.serialize(), project)
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expect(buffer).toBe savedBuffer
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describe 'when the state has text (and no path)', ->
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it 'creates a new buffer with the given text', ->
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unsavedBuffer = project.open()
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unsavedBuffer.setText("OMGWTFBBQ")
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buffer = Buffer.deserialize(unsavedBuffer.serialize(), project)
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expect(buffer).toBe unsavedBuffer
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describe ".getLines()", ->
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it "returns an array of lines in the text contents", ->
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expect(buffer.getLines().length).toBe fileContents.split("\n").length
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expect(buffer.getLines().join('\n')).toBe fileContents
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describe ".change(range, string)", ->
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changeHandler = null
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beforeEach ->
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changeHandler = jasmine.createSpy('changeHandler')
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buffer.on 'change', changeHandler
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describe "when used to insert (called with an empty range and a non-empty string)", ->
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describe "when the given string has no newlines", ->
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it "inserts the string at the location of the given range", ->
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range = [[3, 4], [3, 4]]
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buffer.change range, "foo"
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expect(buffer.lineForRow(2)).toBe " if (items.length <= 1) return items;"
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expect(buffer.lineForRow(3)).toBe " foovar pivot = items.shift(), current, left = [], right = [];"
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expect(buffer.lineForRow(4)).toBe " while(items.length > 0) {"
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expect(changeHandler).toHaveBeenCalled()
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[event] = changeHandler.argsForCall[0]
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expect(event.oldRange).toEqual range
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expect(event.newRange).toEqual [[3, 4], [3, 7]]
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expect(event.oldText).toBe ""
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expect(event.newText).toBe "foo"
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describe "when the given string has newlines", ->
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it "inserts the lines at the location of the given range", ->
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range = [[3, 4], [3, 4]]
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buffer.change range, "foo\n\nbar\nbaz"
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expect(buffer.lineForRow(2)).toBe " if (items.length <= 1) return items;"
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expect(buffer.lineForRow(3)).toBe " foo"
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expect(buffer.lineForRow(4)).toBe ""
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expect(buffer.lineForRow(5)).toBe "bar"
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expect(buffer.lineForRow(6)).toBe "bazvar pivot = items.shift(), current, left = [], right = [];"
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expect(buffer.lineForRow(7)).toBe " while(items.length > 0) {"
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expect(changeHandler).toHaveBeenCalled()
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[event] = changeHandler.argsForCall[0]
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expect(event.oldRange).toEqual range
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expect(event.newRange).toEqual [[3, 4], [6, 3]]
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expect(event.oldText).toBe ""
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expect(event.newText).toBe "foo\n\nbar\nbaz"
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describe "when used to remove (called with a non-empty range and an empty string)", ->
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describe "when the range is contained within a single line", ->
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it "removes the characters within the range", ->
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range = [[3, 4], [3, 7]]
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buffer.change range, ""
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expect(buffer.lineForRow(2)).toBe " if (items.length <= 1) return items;"
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expect(buffer.lineForRow(3)).toBe " pivot = items.shift(), current, left = [], right = [];"
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expect(buffer.lineForRow(4)).toBe " while(items.length > 0) {"
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expect(changeHandler).toHaveBeenCalled()
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[event] = changeHandler.argsForCall[0]
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expect(event.oldRange).toEqual range
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expect(event.newRange).toEqual [[3, 4], [3, 4]]
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expect(event.oldText).toBe "var"
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expect(event.newText).toBe ""
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describe "when the range spans 2 lines", ->
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it "removes the characters within the range and joins the lines", ->
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range = [[3, 16], [4, 4]]
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buffer.change range, ""
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expect(buffer.lineForRow(2)).toBe " if (items.length <= 1) return items;"
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expect(buffer.lineForRow(3)).toBe " var pivot = while(items.length > 0) {"
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expect(buffer.lineForRow(4)).toBe " current = items.shift();"
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expect(changeHandler).toHaveBeenCalled()
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[event] = changeHandler.argsForCall[0]
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expect(event.oldRange).toEqual range
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expect(event.newRange).toEqual [[3, 16], [3, 16]]
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expect(event.oldText).toBe "items.shift(), current, left = [], right = [];\n "
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expect(event.newText).toBe ""
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describe "when the range spans more than 2 lines", ->
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it "removes the characters within the range, joining the first and last line and removing the lines in-between", ->
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buffer.change [[3, 16], [11, 9]], ""
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expect(buffer.lineForRow(2)).toBe " if (items.length <= 1) return items;"
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expect(buffer.lineForRow(3)).toBe " var pivot = sort(Array.apply(this, arguments));"
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expect(buffer.lineForRow(4)).toBe "};"
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describe "when used to replace text with other text (called with non-empty range and non-empty string)", ->
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it "replaces the old text with the new text", ->
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range = [[3, 16], [11, 9]]
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oldText = buffer.getTextInRange(range)
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buffer.change range, "foo\nbar"
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expect(buffer.lineForRow(2)).toBe " if (items.length <= 1) return items;"
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expect(buffer.lineForRow(3)).toBe " var pivot = foo"
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expect(buffer.lineForRow(4)).toBe "barsort(Array.apply(this, arguments));"
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expect(buffer.lineForRow(5)).toBe "};"
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expect(changeHandler).toHaveBeenCalled()
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[event] = changeHandler.argsForCall[0]
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expect(event.oldRange).toEqual range
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expect(event.newRange).toEqual [[3, 16], [4, 3]]
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expect(event.oldText).toBe oldText
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expect(event.newText).toBe "foo\nbar"
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describe ".setText(text)", ->
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it "changes the entire contents of the buffer and emits a change event", ->
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lastRow = buffer.getLastRow()
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expectedPreRange = [[0,0], [lastRow, buffer.lineForRow(lastRow).length]]
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changeHandler = jasmine.createSpy('changeHandler')
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buffer.on 'change', changeHandler
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newText = "I know you are.\nBut what am I?"
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buffer.setText(newText)
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expect(buffer.getText()).toBe newText
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expect(changeHandler).toHaveBeenCalled()
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[event] = changeHandler.argsForCall[0]
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expect(event.newText).toBe newText
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expect(event.oldRange).toEqual expectedPreRange
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expect(event.newRange).toEqual [[0, 0], [1, 14]]
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describe ".save()", ->
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describe "when the buffer has a path", ->
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[filePath, buffer] = []
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beforeEach ->
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filePath = '/tmp/temp.txt'
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fs.remove filePath if fs.exists(filePath)
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buffer = new Buffer filePath
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afterEach ->
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fs.remove filePath if fs.exists(filePath)
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it "saves the contents of the buffer to the path", ->
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buffer.setText 'Buffer contents!'
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buffer.save()
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expect(fs.read(filePath)).toEqual 'Buffer contents!'
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it "fires beforeSave and afterSave events around the call to fs.write", ->
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events = []
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beforeSave1 = -> events.push('beforeSave1')
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beforeSave2 = -> events.push('beforeSave2')
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afterSave1 = -> events.push('afterSave1')
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afterSave2 = -> events.push('afterSave2')
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buffer.on 'before-save', beforeSave1
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buffer.on 'before-save', beforeSave2
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spyOn(fs, 'write').andCallFake -> events.push 'fs.write'
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buffer.on 'after-save', afterSave1
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buffer.on 'after-save', afterSave2
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buffer.save()
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expect(events).toEqual ['beforeSave1', 'beforeSave2', 'fs.write', 'afterSave1', 'afterSave2']
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describe "when the buffer no path", ->
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it "throws an exception", ->
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buffer = new Buffer
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expect(-> buffer.save()).toThrow()
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describe ".saveAs(path)", ->
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filePath = null
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beforeEach ->
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filePath = require.resolve('fixtures') + '/temp.txt'
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expect(fs.exists(filePath)).toBeFalsy()
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afterEach ->
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fs.remove filePath
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it "saves the contents of the buffer to the path", ->
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buffer = new Buffer()
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eventHandler = jasmine.createSpy('eventHandler')
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buffer.on 'path-change', eventHandler
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buffer.setText 'Buffer contents!'
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buffer.saveAs(filePath)
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expect(fs.read(filePath)).toEqual 'Buffer contents!'
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expect(eventHandler).toHaveBeenCalledWith(buffer)
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describe ".getTextInRange(range)", ->
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describe "when range is empty", ->
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it "returns an empty string", ->
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range = [[1,1], [1,1]]
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expect(buffer.getTextInRange(range)).toBe ""
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describe "when range spans one line", ->
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it "returns characters in range", ->
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range = [[2,8], [2,13]]
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expect(buffer.getTextInRange(range)).toBe "items"
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lineLength = buffer.lineForRow(2).length
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range = [[2,0], [2,lineLength]]
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expect(buffer.getTextInRange(range)).toBe " if (items.length <= 1) return items;"
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describe "when range spans multiple lines", ->
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it "returns characters in range (including newlines)", ->
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lineLength = buffer.lineForRow(2).length
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range = [[2,0], [3,0]]
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expect(buffer.getTextInRange(range)).toBe " if (items.length <= 1) return items;\n"
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lineLength = buffer.lineForRow(2).length
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range = [[2,10], [4,10]]
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expect(buffer.getTextInRange(range)).toBe "ems.length <= 1) return items;\n var pivot = items.shift(), current, left = [], right = [];\n while("
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describe ".scanInRange(range, regex, fn)", ->
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describe "when given a regex with no global flag", ->
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it "calls the iterator with the first match for the given regex in the given range", ->
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matches = []
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ranges = []
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buffer.scanInRange /cu(rr)ent/, [[4,0], [6,44]], (match, range) ->
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matches.push(match)
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ranges.push(range)
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expect(matches.length).toBe 1
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expect(ranges.length).toBe 1
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expect(matches[0][0]).toBe 'current'
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expect(matches[0][1]).toBe 'rr'
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expect(ranges[0]).toEqual [[5,6], [5,13]]
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describe "when given a regex with a global flag", ->
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it "calls the iterator with each match for the given regex in the given range", ->
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matches = []
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ranges = []
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buffer.scanInRange /cu(rr)ent/g, [[4,0], [6,59]], (match, range) ->
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matches.push(match)
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ranges.push(range)
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expect(matches.length).toBe 3
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expect(ranges.length).toBe 3
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expect(matches[0][0]).toBe 'current'
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expect(matches[0][1]).toBe 'rr'
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expect(ranges[0]).toEqual [[5,6], [5,13]]
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expect(matches[1][0]).toBe 'current'
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expect(matches[1][1]).toBe 'rr'
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expect(ranges[1]).toEqual [[6,6], [6,13]]
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expect(matches[2][0]).toBe 'current'
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expect(matches[2][1]).toBe 'rr'
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expect(ranges[2]).toEqual [[6,34], [6,41]]
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describe "when the last regex match exceeds the end of the range", ->
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describe "when the portion of the match within the range also matches the regex", ->
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it "calls the iterator with the truncated match", ->
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matches = []
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ranges = []
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buffer.scanInRange /cu(r*)/g, [[4,0], [6,9]], (match, range) ->
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matches.push(match)
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ranges.push(range)
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expect(matches.length).toBe 2
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expect(ranges.length).toBe 2
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expect(matches[0][0]).toBe 'curr'
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expect(matches[0][1]).toBe 'rr'
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expect(ranges[0]).toEqual [[5,6], [5,10]]
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expect(matches[1][0]).toBe 'cur'
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expect(matches[1][1]).toBe 'r'
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expect(ranges[1]).toEqual [[6,6], [6,9]]
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describe "when the portion of the match within the range does not matches the regex", ->
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it "calls the iterator with the truncated match", ->
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matches = []
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ranges = []
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buffer.scanInRange /cu(r*)e/g, [[4,0], [6,9]], (match, range) ->
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matches.push(match)
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ranges.push(range)
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expect(matches.length).toBe 1
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expect(ranges.length).toBe 1
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expect(matches[0][0]).toBe 'curre'
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expect(matches[0][1]).toBe 'rr'
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expect(ranges[0]).toEqual [[5,6], [5,11]]
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describe "when the iterator calls the 'replace' control function with a replacement string", ->
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it "replaces each occurrence of the regex match with the string", ->
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ranges = []
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buffer.scanInRange /cu(rr)ent/g, [[4,0], [6,59]], (match, range, { replace }) ->
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ranges.push(range)
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replace("foo")
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expect(ranges[0]).toEqual [[5,6], [5,13]]
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expect(ranges[1]).toEqual [[6,6], [6,13]]
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expect(ranges[2]).toEqual [[6,30], [6,37]]
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expect(buffer.lineForRow(5)).toBe ' foo = items.shift();'
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expect(buffer.lineForRow(6)).toBe ' foo < pivot ? left.push(foo) : right.push(current);'
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it "allows the match to be replaced with the empty string", ->
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buffer.scanInRange /current/g, [[4,0], [6,59]], (match, range, { replace }) ->
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replace("")
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expect(buffer.lineForRow(5)).toBe ' = items.shift();'
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expect(buffer.lineForRow(6)).toBe ' < pivot ? left.push() : right.push(current);'
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describe "when the iterator calls the 'stop' control function", ->
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it "stops the traversal", ->
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ranges = []
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buffer.scanInRange /cu(rr)ent/g, [[4,0], [6,59]], (match, range, { stop }) ->
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ranges.push(range)
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stop() if ranges.length == 2
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expect(ranges.length).toBe 2
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describe "backwardsScanInRange(range, regex, fn)", ->
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describe "when given a regex with no global flag", ->
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it "calls the iterator with the last match for the given regex in the given range", ->
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matches = []
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ranges = []
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buffer.backwardsScanInRange /cu(rr)ent/, [[4,0], [6,44]], (match, range) ->
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matches.push(match)
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ranges.push(range)
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expect(matches.length).toBe 1
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expect(ranges.length).toBe 1
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expect(matches[0][0]).toBe 'current'
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expect(matches[0][1]).toBe 'rr'
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expect(ranges[0]).toEqual [[6,34], [6,41]]
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describe "when given a regex with a global flag", ->
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it "calls the iterator with each match for the given regex in the given range, starting with the last match", ->
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matches = []
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ranges = []
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buffer.backwardsScanInRange /cu(rr)ent/g, [[4,0], [6,59]], (match, range) ->
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matches.push(match)
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ranges.push(range)
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expect(matches.length).toBe 3
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expect(ranges.length).toBe 3
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expect(matches[0][0]).toBe 'current'
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expect(matches[0][1]).toBe 'rr'
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expect(ranges[0]).toEqual [[6,34], [6,41]]
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expect(matches[1][0]).toBe 'current'
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expect(matches[1][1]).toBe 'rr'
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expect(ranges[1]).toEqual [[6,6], [6,13]]
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expect(matches[2][0]).toBe 'current'
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expect(matches[2][1]).toBe 'rr'
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expect(ranges[2]).toEqual [[5,6], [5,13]]
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describe "when the iterator calls the 'replace' control function with a replacement string", ->
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it "replaces each occurrence of the regex match with the string", ->
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ranges = []
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buffer.backwardsScanInRange /cu(rr)ent/g, [[4,0], [6,59]], (match, range, { replace }) ->
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ranges.push(range)
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replace("foo") unless range.start.isEqual([6,6])
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expect(ranges[0]).toEqual [[6,34], [6,41]]
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expect(ranges[1]).toEqual [[6,6], [6,13]]
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expect(ranges[2]).toEqual [[5,6], [5,13]]
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expect(buffer.lineForRow(5)).toBe ' foo = items.shift();'
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expect(buffer.lineForRow(6)).toBe ' current < pivot ? left.push(foo) : right.push(current);'
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describe "when the iterator calls the 'stop' control function", ->
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it "stops the traversal", ->
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ranges = []
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buffer.backwardsScanInRange /cu(rr)ent/g, [[4,0], [6,59]], (match, range, { stop }) ->
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ranges.push(range)
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stop() if ranges.length == 2
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expect(ranges.length).toBe 2
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expect(ranges[0]).toEqual [[6,34], [6,41]]
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expect(ranges[1]).toEqual [[6,6], [6,13]]
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describe ".characterIndexForPosition(position)", ->
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it "returns the total number of charachters that precede the given position", ->
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expect(buffer.characterIndexForPosition([0, 0])).toBe 0
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expect(buffer.characterIndexForPosition([0, 1])).toBe 1
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expect(buffer.characterIndexForPosition([0, 29])).toBe 29
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expect(buffer.characterIndexForPosition([1, 0])).toBe 30
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expect(buffer.characterIndexForPosition([2, 0])).toBe 61
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expect(buffer.characterIndexForPosition([12, 2])).toBe 408
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describe ".positionForCharacterIndex(position)", ->
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it "returns the position based on charachter index", ->
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expect(buffer.positionForCharacterIndex(0)).toEqual [0, 0]
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expect(buffer.positionForCharacterIndex(1)).toEqual [0, 1]
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expect(buffer.positionForCharacterIndex(29)).toEqual [0, 29]
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expect(buffer.positionForCharacterIndex(30)).toEqual [1, 0]
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expect(buffer.positionForCharacterIndex(61)).toEqual [2, 0]
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expect(buffer.positionForCharacterIndex(408)).toEqual [12, 2]
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describe "path-change event", ->
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it "emits path-change event when path is changed", ->
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eventHandler = jasmine.createSpy('eventHandler')
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buffer.on 'path-change', eventHandler
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buffer.setPath("moo.text")
|
|
expect(eventHandler).toHaveBeenCalledWith(buffer)
|
|
|