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Hi everyone, in this hands on blog i would like to demonstrate simple unit testing in Golang which will help you get started. Let’s take simple go file (main.go) where there is an interface and a concrete implementation that we will test in this blog lab.

Simple Interest Calculator

Let’s examine the contents of the file.

  • LoanInfo struct which is a simple model with one field interestInPercent . As the name suggests, its a model representing information about a Loan.
  • NewLoanInfo LoanInfo constructor function with basic validation.
  • Calculator interface which has one abstract method SimpleInterest , takes principal amount (USD)…


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