to have length
Asserts that an array (or array-like object) has the specified length.
expect([1,2,3], 'to have length', 3);
In case of a failing expectation you get the following output:
expect([1,2,3], 'to have length', 4);
expected [ 1, 2, 3 ] to have length 4
expected 3 to be 4
This assertion can be negated using the not
flag:
expect([1,2,3], 'not to have length', 4);
In case of a failing expectation you get the following output:
expect([1,2,3], 'not to have length', 3);
expected [ 1, 2, 3 ] not to have length 3