How do I write integration tests with Fiber in Go?

Integration tests are crucial for ensuring that your Fiber application works as expected. They allow you to test the complete flow of your application, from the HTTP requests to the responses generated. In this guide, we will explore how to write integration tests using the Fiber framework in Go.

Why Write Integration Tests?

Integration tests help in verifying the interaction between various components of your application, ensuring that everything works together seamlessly. This helps catch issues early in the development process and provides confidence before deploying your application.

Setting Up Fiber for Testing

Before you start writing integration tests, ensure you have Fiber installed. You can do this using the following command:

go get github.com/gofiber/fiber/v2

Example: Writing Integration Tests

Let’s look at a basic example of how to set up and run integration tests for a simple Fiber application:

package main import ( "net/http" "net/http/httptest" "testing" "github.com/gofiber/fiber/v2" "github.com/stretchr/testify/assert" ) func setupApp() *fiber.App { app := fiber.New() app.Get("/", func(c *fiber.Ctx) error { return c.SendString("Hello, World!") }) return app } func TestHelloWorld(t *testing.T) { app := setupApp() req := httptest.NewRequest(http.MethodGet, "/", nil) resp, err := app.Test(req) assert.NoError(t, err) assert.Equal(t, http.StatusOK, resp.StatusCode) body, _ := io.ReadAll(resp.Body) assert.Equal(t, "Hello, World!", string(body)) }

Running the Tests

You can run your tests using the below command:

go test -v

This will execute the tests you have written and provide you with detailed output of the results.


Go Fiber integration tests Go testing Fiber framework

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