Add testcase

test/cypress/tests/ui/BlockTunes.cy.ts

@@ -1,5 +1,6 @@
 import { selectionChangeDebounceTimeout } from '../../../../src/components/constants';
 import Header from '@editorjs/header';
+import { ToolboxConfig } from '../../../../types';
 
 
 describe('BlockTunes', function () {
@@ -182,5 +183,109 @@ describe('BlockTunes', function () {
         .contains('Convert to')
         .should('not.exist');
     });
+
+    it('should not display tool with the same data in "Convert to" menu', () => {
+      /**
+       * Tool with several toolbox entries configured
+       */
+      class TestTool {
+        /**
+         * Tool is convertable
+         */
+        public static get conversionConfig(): { import: string } {
+          return {
+            import: 'text',
+          };
+        }
+
+        /**
+         * TestTool contains several toolbox options
+         */
+        public static get toolbox(): ToolboxConfig {
+          return [
+            {
+              title: 'Title 1',
+              icon: 'Icon1',
+              data: {
+                level: 1,
+              },
+            },
+            {
+              title: 'Title 2',
+              icon: 'Icon2',
+              data: {
+                level: 2,
+              },
+            },
+          ];
+        }
+
+        /**
+         * Tool can render itself
+         */
+        public render(): HTMLDivElement {
+          const div = document.createElement('div');
+
+          div.innerText = 'Some text';
+
+          return div;
+        }
+
+        /**
+         * Tool can save it's data
+         */
+        public save(): { text: string; level: number } {
+          return {
+            text: 'Some text',
+            level: 1,
+          };
+        }
+      }
+
+      /** Editor instance with TestTool installed and one block of TestTool type */
+      cy.createEditor({
+        tools: {
+          testTool: TestTool,
+        },
+        data: {
+          blocks: [
+            {
+              type: 'testTool',
+              data: {
+                text: 'Some text',
+                level: 1,
+              },
+            },
+          ],
+        },
+      });
+
+      /** Open block tunes menu */
+      cy.get('[data-cy=editorjs]')
+        .get('.ce-block')
+        .click();
+
+      cy.get('[data-cy=editorjs]')
+        .get('.ce-toolbar__settings-btn')
+        .click();
+
+      /** Open "Convert to" menu  */
+      cy.get('[data-cy=editorjs]')
+        .get('.ce-popover-item')
+        .contains('Convert to')
+        .click();
+
+      /** Check TestTool option with SAME data is NOT present */
+      cy.get('[data-cy=editorjs]')
+        .get('.ce-popover--nested [data-item-name=testTool]')
+        .contains('Title 1')
+        .should('not.exist');
+
+      /** Check TestTool option with DIFFERENT data IS present */
+      cy.get('[data-cy=editorjs]')
+        .get('.ce-popover--nested [data-item-name=testTool]')
+        .contains('Title 2')
+        .should('exist');
+    });
   });
 });