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105 lines
3.9 KiB
CoffeeScript
105 lines
3.9 KiB
CoffeeScript
RowMap = require '../src/row-map'
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describe "RowMap", ->
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map = null
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beforeEach ->
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map = new RowMap
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describe "::screenRowRangeForBufferRow(bufferRow)", ->
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it "returns the range of screen rows corresponding to the given buffer row", ->
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map.spliceRegions(0, 0, [
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 1, screenRows: 5}
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 5, screenRows: 1}
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])
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expect(map.screenRowRangeForBufferRow(0)).toEqual [0, 1]
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expect(map.screenRowRangeForBufferRow(5)).toEqual [5, 10]
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expect(map.screenRowRangeForBufferRow(6)).toEqual [10, 11]
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expect(map.screenRowRangeForBufferRow(11)).toEqual [15, 16]
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expect(map.screenRowRangeForBufferRow(12)).toEqual [15, 16]
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expect(map.screenRowRangeForBufferRow(16)).toEqual [16, 17]
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describe "::bufferRowRangeForScreenRow(screenRow)", ->
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it "returns the range of buffer rows corresponding to the given screen row", ->
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map.spliceRegions(0, 0, [
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 1, screenRows: 5}
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 5, screenRows: 1}
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])
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expect(map.bufferRowRangeForScreenRow(0)).toEqual [0, 1]
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expect(map.bufferRowRangeForScreenRow(5)).toEqual [5, 6]
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expect(map.bufferRowRangeForScreenRow(6)).toEqual [5, 6]
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expect(map.bufferRowRangeForScreenRow(10)).toEqual [6, 7]
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expect(map.bufferRowRangeForScreenRow(14)).toEqual [10, 11]
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expect(map.bufferRowRangeForScreenRow(15)).toEqual [11, 16]
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expect(map.bufferRowRangeForScreenRow(16)).toEqual [16, 17]
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describe "::spliceRegions(startBufferRow, bufferRowCount, regions)", ->
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it "can insert regions when empty", ->
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regions = [
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 1, screenRows: 5}
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 5, screenRows: 1}
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]
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map.spliceRegions(0, 0, regions)
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expect(map.getRegions()).toEqual regions
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it "can insert wrapped lines into rectangular regions", ->
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map.spliceRegions(0, 0, [{bufferRows: 10, screenRows: 10}])
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map.spliceRegions(5, 0, [{bufferRows: 1, screenRows: 3}])
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expect(map.getRegions()).toEqual [
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 1, screenRows: 3}
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{bufferRows: 5, screenRows: 5}
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]
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it "can splice wrapped lines into rectangular regions", ->
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map.spliceRegions(0, 0, [{bufferRows: 10, screenRows: 10}])
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map.spliceRegions(5, 1, [{bufferRows: 1, screenRows: 3}])
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expect(map.getRegions()).toEqual [
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 1, screenRows: 3}
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{bufferRows: 4, screenRows: 4}
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]
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it "can splice folded lines into rectangular regions", ->
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map.spliceRegions(0, 0, [{bufferRows: 10, screenRows: 10}])
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map.spliceRegions(5, 3, [{bufferRows: 3, screenRows: 1}])
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expect(map.getRegions()).toEqual [
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{bufferRows: 5, screenRows: 5}
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{bufferRows: 3, screenRows: 1}
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{bufferRows: 2, screenRows: 2}
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]
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it "can replace folded regions with a folded region that surrounds them", ->
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map.spliceRegions(0, 0, [
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{bufferRows: 3, screenRows: 3}
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{bufferRows: 3, screenRows: 1}
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{bufferRows: 1, screenRows: 1}
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{bufferRows: 3, screenRows: 1}
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{bufferRows: 3, screenRows: 3}
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])
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map.spliceRegions(2, 8, [{bufferRows: 8, screenRows: 1}])
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expect(map.getRegions()).toEqual [
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{bufferRows: 2, screenRows: 2}
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{bufferRows: 8, screenRows: 1}
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{bufferRows: 3, screenRows: 3}
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]
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it "merges adjacent rectangular regions", ->
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map.spliceRegions(0, 0, [
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{bufferRows: 3, screenRows: 3}
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{bufferRows: 3, screenRows: 1}
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{bufferRows: 1, screenRows: 1}
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{bufferRows: 3, screenRows: 1}
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{bufferRows: 3, screenRows: 3}
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])
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map.spliceRegions(3, 7, [{bufferRows: 5, screenRows: 5}])
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