Simplify failure output

With:

import test from 'ava';

test('returns true when happy', t => {
    throw new Error('unicorn');
});

It currently outputs:

❯ ava

  1 failed

  returns true when happy
  Error: unicorn
    Test.fn (test.js:5:8)

I think we should simplify it to:

❯ ava

  1 failed

  returns true when happy
  Error: unicorn
    test.js:5:8

So users can quickly see where the error came from. Test.fn doesn’t have any value to the user.

This also applies to the verbose reporter ($ ava --verbose).

We could also use https://github.com/sindresorhus/ansi-escapes#itermsetcwdpath to make the path clickable on iTerm.

[sindresorhus]

Only partly. The current output looks like:

❯ ava

  1 failed

  foo
  test.js:24

   23:
   24:   throw new Error('unicorn');
   25: });

  Error: unicorn

  Test.fn (test.js:24:8)

As you can see, the test file and line are shown twice. I think we could simplify it to not show the stack trace if it’s only the test function. @avajs/core Thoughts?

[sotojuan]

I can take care of this as I’ve worked with the reporters before.