Creating a unit testing tool for our URL shortening service

In the previous chapter, we created a URL shortening service. The structure of the URL shortener project we worked on previously looks like this: 

├── main.go
├── models
│   └── models.go
└── utils
    └── encodeutils.go

2 directories, 3 files

In the main.go file, we created two API handlers: one for GET and one for POST. We are going to write the unit tests for both of those handlers. Add a file called main_test.go in the root directory of the project:

touch main_test.go

In order to test our API, we need to test our API handlers: 

package main_test

import (
  "testing"
  "net/http"
)

func TestGetOriginalURL(t *testing.T) {
  // make a dummy reques
  response, err := http.Get("http://localhost:8000/v1/short/1")
 
    if http.StatusOK != response.StatusCode {
      t.Errorf("Expected response code %d. Got %d\n", http.StatusOK, response.StatusCode)
    }

    if err != nil {
      t.Errorf("Encountered an error:", err)
    }
}

There...