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110 lines
3.7 KiB
CoffeeScript
110 lines
3.7 KiB
CoffeeScript
Task = require '../src/task'
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Grim = require 'grim'
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describe "Task", ->
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describe "@once(taskPath, args..., callback)", ->
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it "terminates the process after it completes", ->
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handlerResult = null
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task = Task.once require.resolve('./fixtures/task-spec-handler'), (result) ->
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handlerResult = result
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processErrored = false
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childProcess = task.childProcess
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spyOn(childProcess, 'kill').andCallThrough()
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task.childProcess.on 'error', -> processErrored = true
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waitsFor ->
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handlerResult?
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runs ->
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expect(handlerResult).toBe 'hello'
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expect(childProcess.kill).toHaveBeenCalled()
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expect(processErrored).toBe false
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it "calls listeners registered with ::on when events are emitted in the task", ->
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task = new Task(require.resolve('./fixtures/task-spec-handler'))
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eventSpy = jasmine.createSpy('eventSpy')
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task.on("some-event", eventSpy)
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waitsFor (done) -> task.start(done)
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runs ->
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expect(eventSpy).toHaveBeenCalledWith(1, 2, 3)
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it "unregisters listeners when the Disposable returned by ::on is disposed", ->
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task = new Task(require.resolve('./fixtures/task-spec-handler'))
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eventSpy = jasmine.createSpy('eventSpy')
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disposable = task.on("some-event", eventSpy)
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disposable.dispose()
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waitsFor (done) -> task.start(done)
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runs ->
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expect(eventSpy).not.toHaveBeenCalled()
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it "reports deprecations in tasks", ->
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jasmine.snapshotDeprecations()
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handlerPath = require.resolve('./fixtures/task-handler-with-deprecations')
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task = new Task(handlerPath)
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waitsFor (done) -> task.start(done)
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runs ->
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deprecations = Grim.getDeprecations()
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expect(deprecations.length).toBe 1
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expect(deprecations[0].getStacks()[0][1].fileName).toBe handlerPath
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jasmine.restoreDeprecationsSnapshot()
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it "adds data listeners to standard out and error to report output", ->
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task = new Task(require.resolve('./fixtures/task-spec-handler'))
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{stdout, stderr} = task.childProcess
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task.start()
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task.start()
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expect(stdout.listeners('data').length).toBe 1
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expect(stderr.listeners('data').length).toBe 1
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task.terminate()
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expect(stdout.listeners('data').length).toBe 0
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expect(stderr.listeners('data').length).toBe 0
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it "does not throw an error for forked processes missing stdout/stderr", ->
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spyOn(require('child_process'), 'fork').andCallFake ->
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Events = require 'events'
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fakeProcess = new Events()
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fakeProcess.send = ->
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fakeProcess.kill = ->
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fakeProcess
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task = new Task(require.resolve('./fixtures/task-spec-handler'))
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expect(-> task.start()).not.toThrow()
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expect(-> task.terminate()).not.toThrow()
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describe "::cancel()", ->
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it "dispatches 'task:cancelled' when invoked on an active task", ->
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task = new Task(require.resolve('./fixtures/task-spec-handler'))
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cancelledEventSpy = jasmine.createSpy('eventSpy')
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task.on('task:cancelled', cancelledEventSpy)
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completedEventSpy = jasmine.createSpy('eventSpy')
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task.on('task:completed', completedEventSpy)
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expect(task.cancel()).toBe(true)
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expect(cancelledEventSpy).toHaveBeenCalled()
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expect(completedEventSpy).not.toHaveBeenCalled()
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it "does not dispatch 'task:cancelled' when invoked on an inactive task", ->
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handlerResult = null
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task = Task.once require.resolve('./fixtures/task-spec-handler'), (result) ->
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handlerResult = result
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waitsFor ->
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handlerResult?
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runs ->
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cancelledEventSpy = jasmine.createSpy('eventSpy')
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task.on('task:cancelled', cancelledEventSpy)
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expect(task.cancel()).toBe(false)
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expect(cancelledEventSpy).not.toHaveBeenCalled()
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