Now that you've created the JSONIC language, this programming assignment will have you go through the tutorial for adding other features to the code in your JSONIC language. Features you will be adding will include unit testing and contracts to make the code more reliable, safe, and efficient.

Complete the tutorial Level up: jsonic revisited.

Take a screenshot of the output at the end of the $$Syntax Coloring: Adding a Unit Test$$ section and copy the code and the screenshot into a Word document.

Take a screenshot of the output at the end of the section titled $$Indenting: Testing our Indenter$$ and copy the code and the screenshot into the same Word document.

Take a screenshot of the output at the end of the $$Toolbar Buttons: Testing our Button$$ section and copy the code and the screenshot into the same Word document.

In the same document as your screenshot of the output and code, answer the following question:

Why would a programmer use Unit testing when most companies have a quality assurance person who does this?

Provide details and examples.