produces edited stack that starts with error name

[jpbochi]

I realized I introduced an issue in my previous PR (#690). This is the fix.

The result of the issue is that assertion messages would be output twice. Below is the output of a failed test on a private repo of mine using jest. Jest was able to point to the right place in the code where the failed .expect happened, but the assertion message was duplicated.

    expected 418 "I'm a Teapot", got 400 "Bad Request"expected 418 "I'm a Teapot", got 400 "Bad Request"

      580 |       });
      581 |       return sendRequest(token)
    > 582 |       .expect(418)

After some digging, I realized that the new stack being built started with error.message, and it should really start with error.toString(). See the real-life example below. The error stack starts with Error: and then it continues with its .message.

> new Error('line two\nline one').stack
'Error: line two\n' +
  'line one\n' +
  '    at REPL48:1:1\n' +
…

I verified this code against tests running in another repo and displays assertion messages correctly. As far as I could test, only jest was impacted, but I would not be surprised that this impacts mocha and others, too.

Again, I'm so sorry about this. @niftylettuce, can you please review this and release a patch version? Thank you.

[coveralls]

Pull Request Test Coverage Report for Build 483

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.447%

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Totals
Change from base Build 481:	0.0%
Covered Lines:	146
Relevant Lines:	150

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💛 - Coveralls

[niftylettuce]

v6.1.1 published and I have deprecated v6.1.0

[jpbochi]

thank you very much :)