test_: add test for VerifyDatabasePasswordV2

protocol/requests/verify_database_password_v2.go

@@ -14,12 +14,17 @@ type VerifyDatabasePasswordV2 struct {
 }
 
 // Validate checks the validity of the VerifyDatabasePasswordV2 request.
+var (
+	ErrVerifyDatabasePasswordV2EmptyKeyUID   = errors.New("verify-database-password-v2: KeyUID cannot be empty")
+	ErrVerifyDatabasePasswordV2EmptyPassword = errors.New("verify-database-password-v2: Password cannot be empty")
+)
+
 func (v *VerifyDatabasePasswordV2) Validate() error {
 	if v.KeyUID == "" {
-		return errors.New("verify-database-password-v2: KeyUID cannot be empty")
+		return ErrVerifyDatabasePasswordV2EmptyKeyUID
 	}
 	if v.Password == "" {
-		return errors.New("verify-database-password-v2: Password cannot be empty")
+		return ErrVerifyDatabasePasswordV2EmptyPassword
 	}
 	return nil
 }

protocol/requests/verify_database_password_v2_test.go

@@ -0,0 +1,36 @@
+package requests
+
+import "testing"
+
+func TestVerifyDatabasePasswordV2Validate(t *testing.T) {
+	tests := []struct {
+		name    string
+		request VerifyDatabasePasswordV2
+		wantErr error
+	}{
+		{
+			name:    "Empty KeyUID",
+			request: VerifyDatabasePasswordV2{KeyUID: "", Password: "password"},
+			wantErr: ErrVerifyDatabasePasswordV2EmptyKeyUID,
+		},
+		{
+			name:    "Empty Password",
+			request: VerifyDatabasePasswordV2{KeyUID: "keyuid", Password: ""},
+			wantErr: ErrVerifyDatabasePasswordV2EmptyPassword,
+		},
+		{
+			name:    "Valid Request",
+			request: VerifyDatabasePasswordV2{KeyUID: "keyuid", Password: "password"},
+			wantErr: nil,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := tt.request.Validate()
+			if err != tt.wantErr {
+				t.Errorf("VerifyDatabasePasswordV2.Validate() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}