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JavaScript JavaScript Unit Testing Behavior Driven Development with Mocha & Chai Test Suites and Test Specs (describe and it)

Alejandro Molina
Alejandro Molina
3,997 Points
Posted by Alejandro Molina
Alejandro Molina
3,997 Points

Can someone explain expect(true).to.be.ok further?

What is the difference between using "ok" or "true" for the end of this expect function? I'm not fully understanding the "truthy" concept.

2 Answers

Steven Parker
Steven Parker
229,785 Points
Steven Parker
Steven Parker
229,785 Points

True is a value, but .ok is a way to test for that value.

A value is considered "truthy" if it would satisfy an if statement. Most values are "truthy". The ones that are not are false, 0, an empty string (""), undefined, null and NaN.

Alejandro Molina
Alejandro Molina
3,997 Points
Alejandro Molina
Alejandro Molina
3,997 Points

Ah I see. So it's just a way of making sure that a particular unit test is throwing valid data.