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67 lines
2.5 KiB
CoffeeScript
67 lines
2.5 KiB
CoffeeScript
StyleManager = require '../src/style-manager'
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describe "StyleManager", ->
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[manager, addEvents, removeEvents, updateEvents] = []
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beforeEach ->
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manager = new StyleManager
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addEvents = []
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removeEvents = []
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updateEvents = []
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manager.onDidAddStyleElement (event) -> addEvents.push(event)
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manager.onDidRemoveStyleElement (event) -> removeEvents.push(event)
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manager.onDidUpdateStyleElement (event) -> updateEvents.push(event)
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describe "::addStyleSheet(source, params)", ->
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it "adds a stylesheet based on the given source and returns a disposable allowing it to be removed", ->
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disposable = manager.addStyleSheet("a {color: red;}")
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expect(addEvents.length).toBe 1
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expect(addEvents[0].textContent).toBe "a {color: red;}"
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styleElements = manager.getStyleElements()
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expect(styleElements.length).toBe 1
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expect(styleElements[0].textContent).toBe "a {color: red;}"
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disposable.dispose()
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expect(removeEvents.length).toBe 1
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expect(removeEvents[0].textContent).toBe "a {color: red;}"
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expect(manager.getStyleElements().length).toBe 0
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describe "when a sourcePath parameter is specified", ->
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it "ensures a maximum of one style element for the given source path, updating a previous if it exists", ->
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disposable1 = manager.addStyleSheet("a {color: red;}", sourcePath: '/foo/bar')
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expect(addEvents.length).toBe 1
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expect(addEvents[0].sourcePath).toBe '/foo/bar'
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disposable2 = manager.addStyleSheet("a {color: blue;}", sourcePath: '/foo/bar')
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expect(addEvents.length).toBe 1
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expect(updateEvents.length).toBe 1
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expect(updateEvents[0].sourcePath).toBe '/foo/bar'
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expect(updateEvents[0].textContent).toBe "a {color: blue;}"
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disposable2.dispose()
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addEvents = []
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manager.addStyleSheet("a {color: yellow;}", sourcePath: '/foo/bar')
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expect(addEvents.length).toBe 1
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expect(addEvents[0].sourcePath).toBe '/foo/bar'
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expect(addEvents[0].textContent).toBe "a {color: yellow;}"
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describe "when a group parameter is specified", ->
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it "inserts the stylesheet at the end of any existing stylesheets for the same group", ->
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manager.addStyleSheet("a {color: red}", group: 'a')
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manager.addStyleSheet("a {color: blue}", group: 'b')
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manager.addStyleSheet("a {color: green}", group: 'a')
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expect(manager.getStyleElements().map (elt) -> elt.textContent).toEqual [
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"a {color: red}"
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"a {color: green}"
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"a {color: blue}"
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]
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