Feature Request: Prebound assertion functions

It would be useful and functional to be able to destructure test functions such as pass, fail, deepEqual, it etc. from the test object argument passed into the test function. Currently they are not bound to the test context but could probably be provided pre-bound.

test(({ deepEqual }) => {
    deepEqual([1, 2], [1, 2]);
});

[novemberborn]

With the recent assertion refactor I think we can make it so the assertion knows whether it’s bound or not, so unbound enhanced assertions know that they’re not wrapped by power-assert.

That said I’m somewhat concerned about the performance impact, and not convinced about the value-add.

[sindresorhus]

I don’t really see how that is any more readable than:

test(t => {
    t.deepEqual([1, 2], [1, 2]);
});

It actually get’s very verbose when you use multiple assertions, which is common:

test(({ deepEqual, is, throws }) => {
    deepEqual([1, 2], [1, 2]);
    is(1, 1);
    throws(() => foo());
});

Let’s see what the other team members think.

Maybe you can elaborate on why you want it this way.