Reporter should support all Unicode strings

Description

Let’s make AVA emoji-friendly. Currently it’s difficult to use AVA for testing libraries that perform string operations. Here, errors regarding strings containing emoji appear chopped off and often contain broken characters. Consider the most basic example:

Test Source

test.only('foo', t => {
  t.fail('🦄🐴🦄')
})

Error Message & Stack Trace

Notice the broken symbol:

   1 failed


   1. foo
   🦄�
      Test.fn (test.js:508:5)
npm ERR! Test failed.  See above for more details

Since one emoji .length equals to two, second half of second emoji is cut off. That broken symbol is high-surrogate of second emoji.

Config

{
  "ava": {
    "tap": false
  }
}

Environment

Tell us which operating system you are using, as well as which versions of Node.js, npm, and AVA. Run the following to get it quickly:

Node.js v5.11.1
darwin 15.6.0
ava 0.16.0
npm 3.10.7

[sotojuan]

Cool, I’ll give it a shot tonight : )

[revelt]

Good spot, it’s HyperTerm, I can’t recreate the issue on iTerm2 too… Let’s close this issue, thanks for clearing this.