We will learn about implement unit testing in Golang.

• Setting up the Golang Project
• Defining the Product Entity
• Connecting to the database
• Implementing Unit test with 1 feature, it's find data by ID

• In the first step, we create an entities to represent the structure of our data in the entity package
• In the second step, we create query a function to handle our query
• Then register the new function in our model interface
• In the third step, we create algorithm function to handle all condition in our flow proccess
• and again, we register it into source contract interface
• In fourth step is create faker data or mock data
• than, we create a seederes, to input fake data to database testing
• And the last step is, we create unit test with 2 case, 1 positive cae and 1 negative case

Last but not least, let's start to try to write a function that we think will be used many times in helpers. Happy coding and keep learning 😜