test(portable-text-editor): add test

packages/@sanity/portable-text-editor/src/utils/__tests__/pteWarningsSelfSolving.test.tsx

@@ -0,0 +1,58 @@
+import {describe, expect, it, jest} from '@jest/globals'
+import {render, waitFor} from '@testing-library/react'
+import {createRef, type RefObject} from 'react'
+
+import {PortableTextEditorTester, schemaType} from '../../editor/__tests__/PortableTextEditorTester'
+import {PortableTextEditor} from '../../editor/PortableTextEditor'
+
+describe('when PTE would display warnings, instead it self solves', () => {
+  it('when child at index is missing required _key in block with _key', async () => {
+    const editorRef: RefObject<PortableTextEditor> = createRef()
+    const initialValue = [
+      {
+        _key: '1',
+        _type: 'myTestBlockType',
+        children: [
+          {
+            _type: 'span',
+            marks: [],
+            text: 'Hello with a new key',
+          },
+        ],
+        markDefs: [],
+        style: 'normal',
+      },
+    ]
+
+    const onChange = jest.fn()
+    render(
+      <PortableTextEditorTester
+        onChange={onChange}
+        ref={editorRef}
+        schemaType={schemaType}
+        value={initialValue}
+      />,
+    )
+    await waitFor(() => {
+      if (editorRef.current) {
+        PortableTextEditor.focus(editorRef.current)
+        expect(PortableTextEditor.getValue(editorRef.current)).toEqual([
+          {
+            _key: '1',
+            _type: 'myTestBlockType',
+            children: [
+              {
+                _key: '3',
+                _type: 'span',
+                text: 'Hello with a new key',
+                marks: [],
+              },
+            ],
+            markDefs: [],
+            style: 'normal',
+          },
+        ])
+      }
+    })
+  })
+})