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node_modules/pretty-error/test/ParsedError.coffee 2.49 KB
aaac7fed   liuqimichale   add
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  chai = require 'chai'
  ParsedError = require '../src/ParsedError'
  
  chai.should()
  
  error = (what) ->
    if typeof what is 'string'
      return error -> throw Error what
  
    else if what instanceof Function
      try
        do what
        return null
      catch e
        return e
  
    else
      throw Error "bad argument for error"
  
  describe "ParsedError", ->
    describe "constructor()", ->
      it "should accept Error() instances", ->
        (-> new ParsedError error -> throw Error "some message").should.not.throw()
  
      it "should accept ReferenceError() and other derivatives of Error()", ->
        (-> new ParsedError error -> throw ReferenceError "some message").should.not.throw()
  
      it "should accept non errors", ->
        (-> e = new ParsedError 'some string').should.not.throw()
  
    describe "message", ->
      it "should return the original error message", ->
        e = new ParsedError error 'a'
        e.message.should.equal 'a'
  
    describe "kind", ->
      it "should return 'Error' for normal error", ->
        e = new ParsedError error 'a'
        e.kind.should.equal 'Error'
  
      it "should recognize 'ReferenceError'", ->
        e = new ParsedError error -> a.b = c
        e.kind.should.equal 'ReferenceError'
  
    describe "type", ->
      it.skip "should return original error type", ->
        e = new ParsedError error -> a.b = c
        e.type.should.be.equal 'not_defined'
  
    describe "arguments", ->
      it.skip "should return original error arguments", ->
        e = new ParsedError error -> a.b = c
        e.arguments.should.be.eql ['a']
  
    describe "stack", ->
      it "should return original error stack", ->
        e = new ParsedError error -> a.b = c
        e.stack.should.be.equal e.error.stack
  
    describe "trace", ->
      it "should include correct information about each trace item", ->
        e = new ParsedError error -> a.b = c
        e.trace.should.have.length.above 2
  
        item = e.trace[0]
        item.should.include.keys 'original',
          'what', 'path', 'addr',
          'file', 'dir', 'col',
          'line', 'jsCol', 'jsLine'
          'packageName', 'shortenedPath', 'shortenedAddr'
  
        item.path.should.equal module.filename.replace(/[\\]+/g, '/')
  
        item.line.should.be.a 'number'
        item.col.should.be.a 'number'
  
    describe "_rectifyPath()", ->
      it "should work", ->
        ParsedError::_rectifyPath('F:/a/node_modules/b/node_modules/d/node_modules/e/f.js').path.should.equal '[a]/[b]/[d]/[e]/f.js'
  
      it "should return path when `node_modules` is not present", ->
        ParsedError::_rectifyPath('a/b/c').path.should.equal 'a/b/c'