Variadic assertions and custom messages

[bigpipe]

Variadic assertions and custom messages

[3rd-Eden]

I personally find:

assume('foo').is.either('bar', 'foo', 'banana');

Easier to read and write than:

assume('foo').is.either(['foo, 'bar', 'baz]);

As the example above could also mean that it should be an array instead of one of the strings that are present in the array. Especially when you start doing deep equals of array using either:

assume(['foo']).is.deep.either([['bar'], ['foo'], 'bar']);
assume(['foo']).is.deep.either(['bar'], ['foo'], 'bar');

But I do understand you point and this API is less than ideal. And I don't really an other option forcing an array structure if we want all API methods to follow the same argument structure.

As for the somewhat "private" slice argument, it has been removed from the eql method now that I introduced a sliceStack option in #3.