1 files changed, 45 insertions, 0 deletions
diff --git a/wrap_test.go b/wrap_test.go
new file mode 100644
index 0000000..31b831e
--- /dev/null
+++ b/wrap_test.go
@@ -0,0 +1,45 @@
+package muxtool
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+)
+
+func ExampleWrap() {
+	rr := httptest.NewRecorder()
+
+	// Sample request
+	req := reqHello{
+		Name: "NeonXP",
+	}
+	b, _ := json.Marshal(req)
+	request, _ := http.NewRequest(http.MethodPost, "/hello", bytes.NewReader(b))
+
+	// Handler
+	mux := http.NewServeMux()
+	// Handle wrapped `handleHello(context.Context, *reqHello) (*respHello, error)`
+	mux.Handle("POST /hello", Wrap(handleHello))
+
+	mux.ServeHTTP(rr, request)
+
+	fmt.Println(rr.Body.String())
+	// Output: {"message":"Hello, NeonXP!"}
+}
+
+type reqHello struct {
+	Name string `json:"name"`
+}
+
+type respHello struct {
+	Message string `json:"message"`
+}
+
+func handleHello(ctx context.Context, req *reqHello) (*respHello, error) {
+	return &respHello{
+		Message: fmt.Sprintf("Hello, %s!", req.Name),
+	}, nil
+}