Before we start writing any test, it is important that we understand the concepts related to testing and, more particularly, to each of the available methodologies.
The idea behind unit testing is to write tests for certain areas (units) of our code, so that we can verify that the code works as expected and the function is returning expected values.
" In computer programming, unit testing is a method by which individual units of source code, sets of one or more computer program modules together with associated control data, usage procedures, and operating procedures, are tested to determine if they are fit for use." | ||
| --Wikipedia | ||
Another advantage of writing unit tests is that by doing this, we are more likely to write code that is easier to test.
This means that our code tends to be broken down into smaller but more specialized functions. As we continue to write more and more tests, we start building a test suite that can be run against our codebase every time we...