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https://github.com/jashkenas/coffeescript.git
synced 2022-11-09 12:23:24 -05:00
39 lines
1.3 KiB
CoffeeScript
39 lines
1.3 KiB
CoffeeScript
sourcemap = require '../src/sourcemap'
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vlqEncodedValues = [
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[1, "C"],
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[-1, "D"],
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[2, "E"],
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[-2, "F"],
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[0, "A"],
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[16, "gB"],
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[948, "o7B"]
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]
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test "vlqEncodeValue tests", ->
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for pair in vlqEncodedValues
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eq (sourcemap.vlqEncodeValue pair[0]), pair[1]
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test "vlqDecodeValue tests", ->
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for pair in vlqEncodedValues
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arrayEq (sourcemap.vlqDecodeValue pair[1]), [pair[0], pair[1].length]
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test "vlqDecodeValue with offset", ->
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for pair in vlqEncodedValues
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# Try with an offset, and some cruft at the end.
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arrayEq (sourcemap.vlqDecodeValue ("abc" + pair[1] + "efg"), 3), [pair[0], pair[1].length]
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test "SourceMap tests", ->
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map = new sourcemap.SourceMap()
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map.addMapping [0, 0], [0, 0]
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map.addMapping [1, 5], [2, 4]
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map.addMapping [1, 6], [2, 7]
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map.addMapping [1, 9], [2, 8]
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map.addMapping [3, 0], [3, 4]
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eq (sourcemap.generateV3SourceMap map, "source.coffee", "source.js"), '{"version":3,"file":"source.js","sourceRoot":"","source":["source.coffee"],"names":[],"mappings":"AAAA;;IACK,GAAC,CAAG;IAET"}'
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# Look up a generated column - should get back the original source position.
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arrayEq map.getSourcePosition([2,8]), [1,9]
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# Look up a point futher along on the same line - should get back the same source position.
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arrayEq map.getSourcePosition([2,10]), [1,9]
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