初始提交：OCI 面板后端（含 GenAI 网关一期）

internal/crypto/aead_test.go

@@ -0,0 +1,69 @@
+package crypto
+
+import "testing"
+
+func TestCipherRoundTrip(t *testing.T) {
+	tests := []struct {
+		name      string
+		plaintext string
+	}{
+		{name: "普通文本", plaintext: "hello oci-portal"},
+		{name: "空串", plaintext: ""},
+		{name: "PEM 多行", plaintext: "-----BEGIN PRIVATE KEY-----\nabc\n-----END PRIVATE KEY-----"},
+	}
+	c, err := NewCipher("test-master-key")
+	if err != nil {
+		t.Fatalf("NewCipher: %v", err)
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			enc, err := c.EncryptString(tt.plaintext)
+			if err != nil {
+				t.Fatalf("EncryptString: %v", err)
+			}
+			got, err := c.DecryptString(enc)
+			if err != nil {
+				t.Fatalf("DecryptString: %v", err)
+			}
+			if got != tt.plaintext {
+				t.Errorf("roundtrip: got %q, want %q", got, tt.plaintext)
+			}
+		})
+	}
+}
+
+func TestCipherWrongKeyFails(t *testing.T) {
+	c1, _ := NewCipher("key-one")
+	c2, _ := NewCipher("key-two")
+	enc, err := c1.EncryptString("secret")
+	if err != nil {
+		t.Fatalf("EncryptString: %v", err)
+	}
+	if _, err := c2.DecryptString(enc); err == nil {
+		t.Error("decrypt with wrong key: got nil error, want failure")
+	}
+}
+
+func TestCipherRejectsGarbage(t *testing.T) {
+	c, _ := NewCipher("key")
+	tests := []struct {
+		name  string
+		input string
+	}{
+		{name: "非 base64", input: "not-base64!!"},
+		{name: "过短密文", input: "YWJj"},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if _, err := c.DecryptString(tt.input); err == nil {
+				t.Errorf("DecryptString(%q): got nil error, want failure", tt.input)
+			}
+		})
+	}
+}
+
+func TestNewCipherEmptyKey(t *testing.T) {
+	if _, err := NewCipher(""); err == nil {
+		t.Error("NewCipher(\"\"): got nil error, want failure")
+	}
+}