feat: contact form backend for linux and freebsd servers

Assisted-by: GLM 5.3 Flash

cmd/server/main_test.go

@@ -0,0 +1,52 @@
+// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
+// SPDX-License-Identifier: MIT
+
+//go:build linux || freebsd
+
+package main
+
+import (
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestStatusRecorder(t *testing.T) {
+	rec := httptest.NewRecorder()
+	sr := &statusRecorder{ResponseWriter: rec, status: http.StatusOK}
+
+	// Default status before WriteHeader.
+	if sr.status != http.StatusOK {
+		t.Errorf("initial status = %d, want %d", sr.status, http.StatusOK)
+	}
+
+	sr.WriteHeader(http.StatusNotFound)
+	if sr.status != http.StatusNotFound {
+		t.Errorf("status after WriteHeader = %d, want %d", sr.status, http.StatusNotFound)
+	}
+
+	// rec should also have the status set.
+	if rec.Code != http.StatusNotFound {
+		t.Errorf("rec.Code = %d, want %d", rec.Code, http.StatusNotFound)
+	}
+}
+
+func TestWithRequestLog(t *testing.T) {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusOK)
+	})
+
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	wrapped := withRequestLog(handler, logger, false)
+	req := httptest.NewRequest(http.MethodGet, "/test", nil)
+	req.RemoteAddr = "192.168.1.1:12345"
+	rec := httptest.NewRecorder()
+
+	wrapped.ServeHTTP(rec, req)
+
+	if rec.Code != http.StatusOK {
+		t.Errorf("status = %d, want 200", rec.Code)
+	}
+}