Type check on array of numbers fails

[blenderer]

Sorry about the issue#10, accidentally closed it!

var chai = require('chai');
require('chai-things');

chai.should();

var numArray = [1,2,3,4,9882];

describe('array', function () {
    describe('elements', function () {
        it('should all be numbers', function () {
            return numArray.should.all.be.a('number');
        });
    });
    describe('first element', function () {
        it('should be a number', function () {
            return numArray[3].should.be.a('number');
        });
    });
});

Mocha run results:

array
  elements
    1) should all be numbers
  first element
    ✓ should be a number 


1 passing (9ms)
1 failing

1) array elements should all be numbers:
   AssertionError: expected [ 1, 2, 3, 4, 9882 ] to be a number

[RubenVerborgh]

Unfortunately, using Chai-Thing with a property function is not possible at the moment, and I'm unsure whether it can be fixed easily with the current Chai design. See #4, #9, and https://github.com/RubenVerborgh/Chai-Things#known-issues.

[blenderer]

What's the difference between using:
.should.all.match(/.*/);
and
.should.all.be.a('number')
?

[RubenVerborgh]

That works, because the test is executed on the array, not on the elements, and (the stringified version of) the array coincidentally also matches /.*/. It would not work with /^\d+$/.

[blenderer]

Makes sense. Thank you.