Writing your first Jasmine test

To write our first Jasmine test, we will use a program that will calculate the factorial of a given number.

"As a user, I want to validate/evaluate factorial functionality so that I can get the exact factorial value for a given number."

Let's consider some scenarios in the current context:

  • Scenario-1: Factorial value should be evaluated for a given positive number
  • Scenario-2: A 'null' value should be returned for negative numbers

Getting ready

To start writing Jasmine tests, you need to download Jasmine from the official website. Download the Jasmine Standalone release (that is, jasmine-standalone-2.x.x.zip) from the following website:

https://github.com/pivotal/jasmine/releases

How to do it...

To start a Jasmine test, ...

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