Testing an HTTP Server with a Database Backend

Let’s learn how to use Go to test an HTTP server with a database backend.

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An HTTP server is a different kind of animal because it should already run for tests to get executed. Thankfully, the net/http/httptest package can help—we do not need to run the HTTP server on our own because the net/http/httptest package does the work for us, but we need to have the database server up and running. We are going to test the REST API server we have developed in “Chapter 10, Working with REST APIs”—we are going to copy the server_test.go file with the test code in the GitHub repository of the server.

Note: To create server_test.go, we do not have to change the implementation of the REST API server.

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The code of server_test.go, which holds the test functions for the HTTP service, is the following:

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Course Introduction

Introduction to Go

Basic Go Data Types

Composite Data Types

Reflection and Interfaces

Go Packages and Functions

Telling a UNIX System What to Do

Go Concurrency

Building Web Services

Working with TCP/IP and WebSocket

Working with REST APIs

Code Testing and Profiling

Working with gRPC

Go Generics

Conclusion

Appendix A—Go Garbage Collector

Testing an HTTP Server with a Database Backend

Coding example