Merge pull request #2 from edmarfelipe/feat/code_coverage

feat: add new router

.github/workflows/build.yml

@@ -64,5 +64,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     needs: test
+    permissions:
+      actions: read # to download
     steps:
-      - uses: fgrosse/go-coverage-report@v1.0.2
+      - uses: fgrosse/go-coverage-report@v1.0.2

internal/httpserver/handler_hello.go

@@ -0,0 +1,29 @@
+package httpserver
+
+import "net/http"
+
+var (
+	msgs = map[string]string{
+		"en": "Hello",
+		"es": "Hola",
+		"pt": "Olá",
+	}
+)
+
+type HelloResponse struct {
+	Message string `json:"message"`
+}
+
+func HelloHandler(w http.ResponseWriter, r *http.Request) {
+	lang := r.URL.Query().Get("lang")
+	if lang == "" {
+		lang = "en"
+	}
+
+	if _, ok := msgs[lang]; !ok {
+		WriteJSON(w, http.StatusBadRequest, ErrorResponse{Error: "invalid language"})
+		return
+	}
+
+	WriteJSON(w, http.StatusOK, HelloResponse{Message: msgs[lang]})
+}

internal/httpserver/handler_hello_test.go

@@ -0,0 +1,33 @@
+package httpserver_test
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/edmarfelipe/go-ci/internal/httpserver"
+)
+
+func TestHelloHandler(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(httpserver.HelloHandler))
+
+	t.Run("Should return a hello response with default language", func(t *testing.T) {
+		resp, err := http.Get(srv.URL)
+		if err != nil {
+			t.Fatalf("expected no error, got %v", err)
+		}
+
+		if resp.StatusCode != http.StatusOK {
+			t.Fatalf("expected status code %d, got %d", http.StatusOK, resp.StatusCode)
+		}
+		defer resp.Body.Close()
+
+		var hello httpserver.HelloResponse
+		json.NewDecoder(resp.Body).Decode(&hello)
+
+		if hello.Message != "Hello" {
+			t.Fatalf("expected message %s, got %s", "Hello", hello.Message)
+		}
+	})
+}

internal/httpserver/server.go

@@ -14,6 +14,7 @@ type HTTPServer struct {
 func New(cfg *env.Env) *HTTPServer {
 	router := http.NewServeMux()
 	router.HandleFunc("GET /health", HealthHandler)
+	router.HandleFunc("GET /hello", HelloHandler)
 
 	return &HTTPServer{
 		srv: &http.Server{