feat: implement security, discovery, history, file transfer, web UI (P0-P3)

internal/security/security_test.go

@@ -0,0 +1,44 @@
+package security
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestGenerateKey(t *testing.T) {
+	k1, err := GenerateKey()
+	if err != nil {
+		t.Fatalf("GenerateKey: %v", err)
+	}
+	k2, err := GenerateKey()
+	if err != nil {
+		t.Fatalf("GenerateKey: %v", err)
+	}
+	if len(k1) != 64 {
+		t.Errorf("key length = %d, want 64 hex chars", len(k1))
+	}
+	if k1 == k2 {
+		t.Error("two generated keys are identical")
+	}
+}
+
+func TestGenerateSelfSignedCert(t *testing.T) {
+	dir := t.TempDir()
+	certFile := filepath.Join(dir, "cert.pem")
+	keyFile := filepath.Join(dir, "key.pem")
+
+	if err := GenerateSelfSignedCert(certFile, keyFile, []string{"localhost", "127.0.0.1"}); err != nil {
+		t.Fatalf("GenerateSelfSignedCert: %v", err)
+	}
+
+	for _, f := range []string{certFile, keyFile} {
+		info, err := os.Stat(f)
+		if err != nil {
+			t.Fatalf("Stat %s: %v", f, err)
+		}
+		if info.Size() == 0 {
+			t.Errorf("%s is empty", f)
+		}
+	}
+}