Pre-bind assertion methods

[sindresorhus]

Or simply all methods on the test context t.

I didn't really buy the use-case in #1255, but after that I've encountered some situations where it could have been useful.

Sometimes I need to skip an assert based on some condition:

test(t => {
	const isTrue = condition ? t.true : t.skip.true;
	isTrue('a', 'b');
});

The above results in an error:

TypeError {
    message: 'Cannot read property \'_test\' of undefined',
  }

Or use a different assertion. I realize it's not a very good practice, but sometimes it's just the best way to do it.

Right now I have to do:

test(t => {
	const isTrue = (condition ? t.true : t.skip.true).bind(t);
	isTrue('a', 'b');
});

Which is not very nice.

[novemberborn]

Yea we can give it a shot. It's a bunch more function allocations so it'd be interesting to see what happens when there's loads of tests in a single file, but on the other hand I doubt it'll really have an impact, especially in the most recent Node.js.

[reddysridhar53]

Can I work on this?

[novemberborn]

@reddysridhar53 it's all yours!

[irahulcse]

How to do the work on this project?

[sindresorhus]

@irahulcse You mean how to contribute? See our comprehensive contribution guide: https://github.com/avajs/ava/blob/master/contributing.md