Scala Test-Driven Development

Problem statement

We will extend our example from the previous chapter about base conversion so that we can convert from decimal to hexadecimal and vice versa.

Feature – decimal to hexadecimal conversion

As a user, I want to convert a decimal number to a hexadecimal number.

Scenario 1:

• Given a decimal number A
• When I convert this number to a hexadecimal number
• Then, I get a hexadecimal equivalent B of the original decimal number

Scenario 2:

• Given a hexadecimal number X
• When I convert this number to a decimal number
• Then, I get decimal equivalent Y of the original hexadecimal number

Scenario 3:

• Given a decimal number A
• When I convert A to hexadecimal to get hexadecimal number B
• And I again convert B to decimal number C
• Then, A is equal to C

Let's apply some ...