158 lines
5.2 KiB
CoffeeScript
158 lines
5.2 KiB
CoffeeScript
#= require line_highlighter
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describe 'LineHighlighter', ->
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fixture.preload('line_highlighter.html')
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clickLine = (number, eventData = {}) ->
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if $.isEmptyObject(eventData)
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$("#L#{number}").mousedown().click()
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else
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e = $.Event 'mousedown', eventData
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$("#L#{number}").trigger(e).click()
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beforeEach ->
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fixture.load('line_highlighter.html')
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@class = new LineHighlighter()
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@css = @class.highlightClass
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@spies = {
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__setLocationHash__: spyOn(@class, '__setLocationHash__').and.callFake ->
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}
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describe 'behavior', ->
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it 'highlights one line given in the URL hash', ->
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new LineHighlighter('#L13')
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expect($('#LC13')).toHaveClass(@css)
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it 'highlights a range of lines given in the URL hash', ->
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new LineHighlighter('#L5-25')
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expect($(".#{@css}").length).toBe(21)
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expect($("#LC#{line}")).toHaveClass(@css) for line in [5..25]
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it 'scrolls to the first highlighted line on initial load', ->
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spy = spyOn($, 'scrollTo')
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new LineHighlighter('#L5-25')
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expect(spy).toHaveBeenCalledWith('#L5', jasmine.anything())
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it 'discards click events', ->
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spy = spyOnEvent('a[data-line-number]', 'click')
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clickLine(13)
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expect(spy).toHaveBeenPrevented()
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it 'handles garbage input from the hash', ->
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func = -> new LineHighlighter('#blob-content-holder')
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expect(func).not.toThrow()
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describe '#clickHandler', ->
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it 'discards the mousedown event', ->
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spy = spyOnEvent('a[data-line-number]', 'mousedown')
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clickLine(13)
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expect(spy).toHaveBeenPrevented()
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it 'handles clicking on a child icon element', ->
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spy = spyOn(@class, 'setHash').and.callThrough()
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$('#L13 i').mousedown().click()
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expect(spy).toHaveBeenCalledWith(13)
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expect($('#LC13')).toHaveClass(@css)
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describe 'without shiftKey', ->
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it 'highlights one line when clicked', ->
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clickLine(13)
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expect($('#LC13')).toHaveClass(@css)
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it 'unhighlights previously highlighted lines', ->
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clickLine(13)
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clickLine(20)
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expect($('#LC13')).not.toHaveClass(@css)
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expect($('#LC20')).toHaveClass(@css)
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it 'sets the hash', ->
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spy = spyOn(@class, 'setHash').and.callThrough()
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clickLine(13)
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expect(spy).toHaveBeenCalledWith(13)
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describe 'with shiftKey', ->
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it 'sets the hash', ->
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spy = spyOn(@class, 'setHash').and.callThrough()
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clickLine(13)
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clickLine(20, shiftKey: true)
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expect(spy).toHaveBeenCalledWith(13)
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expect(spy).toHaveBeenCalledWith(13, 20)
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describe 'without existing highlight', ->
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it 'highlights the clicked line', ->
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clickLine(13, shiftKey: true)
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expect($('#LC13')).toHaveClass(@css)
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expect($(".#{@css}").length).toBe(1)
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it 'sets the hash', ->
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spy = spyOn(@class, 'setHash')
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clickLine(13, shiftKey: true)
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expect(spy).toHaveBeenCalledWith(13)
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describe 'with existing single-line highlight', ->
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it 'uses existing line as last line when target is lesser', ->
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clickLine(20)
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clickLine(15, shiftKey: true)
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expect($(".#{@css}").length).toBe(6)
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expect($("#LC#{line}")).toHaveClass(@css) for line in [15..20]
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it 'uses existing line as first line when target is greater', ->
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clickLine(5)
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clickLine(10, shiftKey: true)
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expect($(".#{@css}").length).toBe(6)
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expect($("#LC#{line}")).toHaveClass(@css) for line in [5..10]
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describe 'with existing multi-line highlight', ->
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beforeEach ->
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clickLine(10, shiftKey: true)
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clickLine(13, shiftKey: true)
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it 'uses target as first line when it is less than existing first line', ->
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clickLine(5, shiftKey: true)
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expect($(".#{@css}").length).toBe(6)
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expect($("#LC#{line}")).toHaveClass(@css) for line in [5..10]
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it 'uses target as last line when it is greater than existing first line', ->
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clickLine(15, shiftKey: true)
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expect($(".#{@css}").length).toBe(6)
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expect($("#LC#{line}")).toHaveClass(@css) for line in [10..15]
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describe '#hashToRange', ->
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beforeEach ->
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@subject = @class.hashToRange
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it 'extracts a single line number from the hash', ->
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expect(@subject('#L5')).toEqual([5, null])
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it 'extracts a range of line numbers from the hash', ->
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expect(@subject('#L5-15')).toEqual([5, 15])
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it 'returns [null, null] when the hash is not a line number', ->
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expect(@subject('#foo')).toEqual([null, null])
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describe '#highlightLine', ->
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beforeEach ->
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@subject = @class.highlightLine
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it 'highlights the specified line', ->
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@subject(13)
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expect($('#LC13')).toHaveClass(@css)
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it 'accepts a String-based number', ->
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@subject('13')
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expect($('#LC13')).toHaveClass(@css)
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describe '#setHash', ->
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beforeEach ->
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@subject = @class.setHash
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it 'sets the location hash for a single line', ->
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@subject(5)
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expect(@spies.__setLocationHash__).toHaveBeenCalledWith('#L5')
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it 'sets the location hash for a range', ->
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@subject(5, 15)
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expect(@spies.__setLocationHash__).toHaveBeenCalledWith('#L5-15')
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