Improved test suites readability

src/controller/account_test.go

@@ -2,52 +2,17 @@ package controller
 
 import (
 	"bytes"
-	"context"
 	"encoding/json"
 	"io"
-	"log"
 	"net/http"
 	"net/http/httptest"
-	"os"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/switcherapi/switcher-gitops/src/config"
-	"github.com/switcherapi/switcher-gitops/src/db"
 	"github.com/switcherapi/switcher-gitops/src/model"
-	"github.com/switcherapi/switcher-gitops/src/repository"
-	"go.mongodb.org/mongo-driver/mongo"
 )
 
-var mongoDb *mongo.Database
-
-func TestMain(m *testing.M) {
-	setup()
-	code := m.Run()
-	shutdown()
-	os.Exit(code)
-}
-
-func setup() {
-	os.Setenv("GO_ENV", "test")
-	config.InitEnv()
-	mongoDb = db.InitDb()
-}
-
-func shutdown() {
-	// Drop the database after all tests have run
-	mongoDb.Drop(context.Background())
-	mongoDb.Client().Disconnect(context.Background())
-}
-
 func TestCreateAccountHandler(t *testing.T) {
-	controller := AccountController{
-		AccountRepository: &repository.AccountRepositoryMongo{Db: mongoDb},
-	}
-
-	w := httptest.NewRecorder()
-	r := httptest.NewRequest("POST", "/api/account", nil)
-
 	// Create a sample account request
 	accountRequest := model.Account{
 		Repository: "switcherapi/switcher-gitops",
@@ -67,22 +32,29 @@ func TestCreateAccountHandler(t *testing.T) {
 		},
 	}
 
-	// Encode the account request as JSON
-	body, _ := json.Marshal(accountRequest)
-	r.Body = io.NopCloser(bytes.NewReader(body))
-	r.Header.Set("Content-Type", "application/json")
-
-	controller.CreateAccountHandler(w, r)
+	// Create a request and response recorder
+	w, r := givenAccountRequest(accountRequest)
 
-	// Assert the response status code
-	assert.Equal(t, http.StatusCreated, w.Code)
+	// Test
+	accountController.CreateAccountHandler(w, r)
 
-	// Assert the response body
+	// Assert
 	var accountResponse model.Account
 	err := json.NewDecoder(w.Body).Decode(&accountResponse)
-	if err != nil {
-		log.Fatal(err)
-	}
 
+	assert.Equal(t, http.StatusCreated, w.Code)
+	assert.Nil(t, err)
 	assert.Equal(t, accountRequest.Repository, accountResponse.Repository)
 }
+
+func givenAccountRequest(data model.Account) (*httptest.ResponseRecorder, *http.Request) {
+	w := httptest.NewRecorder()
+	r := httptest.NewRequest("POST", "/api/account", nil)
+
+	// Encode the account request as JSON
+	body, _ := json.Marshal(data)
+	r.Body = io.NopCloser(bytes.NewReader(body))
+	r.Header.Set("Content-Type", "application/json")
+
+	return w, r
+}

src/controller/api_test.go

@@ -9,12 +9,16 @@ import (
 )
 
 func TestCheckApiHandler(t *testing.T) {
-	controller := ApiController{}
-	w := httptest.NewRecorder()
-	r := httptest.NewRequest("GET", "/api/check", nil)
-
-	controller.CheckApiHandler(w, r)
+	w, r := givenApiRequest()
+	apiController.CheckApiHandler(w, r)
 
 	assert.Equal(t, http.StatusOK, w.Code)
 	assert.Equal(t, `{"message":"API is working"}`, w.Body.String())
 }
+
+func givenApiRequest() (*httptest.ResponseRecorder, *http.Request) {
+	w := httptest.NewRecorder()
+	r := httptest.NewRequest("GET", "/api/check", nil)
+
+	return w, r
+}

src/controller/controller_test.go

@@ -0,0 +1,40 @@
+package controller
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/switcherapi/switcher-gitops/src/config"
+	"github.com/switcherapi/switcher-gitops/src/db"
+	"github.com/switcherapi/switcher-gitops/src/repository"
+	"go.mongodb.org/mongo-driver/mongo"
+)
+
+var mongoDb *mongo.Database
+var accountController AccountController
+var apiController ApiController
+
+func TestMain(m *testing.M) {
+	setup()
+	code := m.Run()
+	shutdown()
+	os.Exit(code)
+}
+
+func setup() {
+	os.Setenv("GO_ENV", "test")
+	config.InitEnv()
+	mongoDb = db.InitDb()
+
+	apiController = ApiController{}
+	accountController = AccountController{
+		AccountRepository: &repository.AccountRepositoryMongo{Db: mongoDb},
+	}
+}
+
+func shutdown() {
+	// Drop the database after all tests have run
+	mongoDb.Drop(context.Background())
+	mongoDb.Client().Disconnect(context.Background())
+}