Add simple benchmark to track the allocations and speed for future improvements.

main_bench_test.go

@@ -0,0 +1,57 @@
+package traefikoidc
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+// BenchmarkOIDCMiddleware benchmarks the OIDC middleware's ability to handle concurrent requests.
+func BenchmarkOIDCMiddleware(b *testing.B) {
+	// Setup test environment
+
+	ts := &TestSuite{}
+	ts.Setup()
+	ts.token = "valid.jwt.token"
+
+	// Define the handler with OIDC middleware
+	ts.tOidc.next = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	})
+
+	// Create test server
+	server := httptest.NewServer(ts.tOidc.next)
+	defer server.Close()
+
+	// Prepare HTTP client
+	client := &http.Client{}
+
+	// Reset timer to exclude setup time
+	b.ResetTimer()
+
+	// Run benchmark
+	for i := 0; i < b.N; i++ {
+		// Create new request
+		req, err := http.NewRequest("GET", server.URL, nil)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		// Set necessary headers or cookies
+		req.Header.Set("Authorization", "Bearer "+ts.token)
+
+		// Send the request
+		resp, err := client.Do(req)
+		if err != nil {
+			b.Fatal(err)
+		}
+
+		// Close response body
+		resp.Body.Close()
+
+		// Check response status code
+		if resp.StatusCode != http.StatusOK {
+			b.Errorf("Unexpected status code: got %v, want %v", resp.StatusCode, http.StatusOK)
+		}
+	}
+}