From eba39d1fa1eba9ebc66b5c85167e21bc907d35f0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9A=D0=B8=D1=80=D0=B8=D0=BB=D0=BB=20=D0=92=D0=B5=D1=82?=
 =?UTF-8?q?=D1=80=D0=BE=D0=B2?= <vetrovk@gmail.com>
Date: Thu, 2 Jul 2026 09:29:48 +0300
Subject: [PATCH] Validate empty Show On Map options

---
 src/core/operations/ShowOnMap.mjs    |  6 ++++--
 tests/operations/tests/ShowOnMap.mjs | 22 ++++++++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/core/operations/ShowOnMap.mjs b/src/core/operations/ShowOnMap.mjs
index 2eab5140..708ad058 100644
--- a/src/core/operations/ShowOnMap.mjs
+++ b/src/core/operations/ShowOnMap.mjs
@@ -36,7 +36,8 @@ class ShowOnMap extends Operation {
             {
                 name: "Input Format",
                 type: "option",
-                value: ["Auto"].concat(FORMATS)
+                value: ["Auto"].concat(FORMATS),
+                allowEmpty: false
             },
             {
                 name: "Input Delimiter",
@@ -49,7 +50,8 @@ class ShowOnMap extends Operation {
                     "Comma",
                     "Semi-colon",
                     "Colon"
-                ]
+                ],
+                allowEmpty: false
             }
         ];
     }
diff --git a/tests/operations/tests/ShowOnMap.mjs b/tests/operations/tests/ShowOnMap.mjs
index 8605ae70..329ed345 100644
--- a/tests/operations/tests/ShowOnMap.mjs
+++ b/tests/operations/tests/ShowOnMap.mjs
@@ -36,4 +36,26 @@ TestRegister.addTests([
             },
         ],
     },
+    {
+        name: "Show on map: empty input format is rejected",
+        input: "1, 24",
+        expectedOutput: "Input Format cannot be empty.",
+        recipeConfig: [
+            {
+                op: "Show on map",
+                args: [13, "", "Auto"]
+            },
+        ],
+    },
+    {
+        name: "Show on map: empty input delimiter is rejected",
+        input: "1, 24",
+        expectedOutput: "Input Delimiter cannot be empty.",
+        recipeConfig: [
+            {
+                op: "Show on map",
+                args: [13, "Auto", ""]
+            },
+        ],
+    },
 ]);