test(tiptap): cover snake_case/PascalCase attrs, drop redundant regression test

Fold the extra case styles into the existing kebab-case test instead of
adding new ones, and remove the exact-camelCase regression test since
the direct-match path is already exercised by other tests in this file.

Author: hendrikheil

src/app/test/unit/utils/tiptap/props.test.ts

@@ -1277,7 +1277,7 @@ describe('props', () => {
       })
     })
 
-    test('binds a camelCase meta prop to its kebab-cased stored attr instead of duplicating it (issue #529)', () => {
+    test('binds a camelCase meta prop to its differently-cased stored attr instead of duplicating it (issue #529)', () => {
       const props: PropertyMeta[] = [
         {
           name: 'fooBar',
@@ -1299,35 +1299,8 @@ describe('props', () => {
           schema: 'string | undefined',
           declarations: [],
         },
-      ]
-
-      // Stored attrs are kebab-cased, as produced by the MDC parser
-      const node = {
-        type: {
-          name: 'element',
-        },
-        attrs: {
-          tag: 'Unicorn',
-          props: {
-            'foo-bar': 'foo bar value',
-            'baz-qux': 'baz qux value',
-          },
-        },
-      } as unknown as ProseMirrorNode
-
-      const formTree = buildFormTreeFromProps(node, createComponentMeta(props))
-
-      // One field per declared prop, bound to the stored value — no empty meta field
-      // plus a duplicate "custom" field for the kebab-cased key.
-      expect(Object.keys(formTree)).toEqual(['fooBar', 'bazQux'])
-      expect(formTree.fooBar).toMatchObject({ key: 'fooBar', value: 'foo bar value', custom: false })
-      expect(formTree.bazQux).toMatchObject({ key: 'bazQux', value: 'baz qux value', custom: false })
-    })
-
-    test('still matches an exact camelCase stored attr (regression)', () => {
-      const props: PropertyMeta[] = [
         {
-          name: 'fooBar',
+          name: 'quuxCorge',
           global: false,
           description: '',
           tags: [],
@@ -1345,15 +1318,21 @@ describe('props', () => {
         attrs: {
           tag: 'Unicorn',
           props: {
-            fooBar: 'Already camelCase',
+            'foo-bar': 'foo bar value', // kebab-case, as produced by the MDC parser
+            baz_qux: 'baz qux value', // snake_case
+            QuuxCorge: 'quux corge value', // PascalCase
           },
         },
       } as unknown as ProseMirrorNode
 
       const formTree = buildFormTreeFromProps(node, createComponentMeta(props))
 
-      expect(Object.keys(formTree)).toEqual(['fooBar'])
-      expect(formTree.fooBar).toMatchObject({ value: 'Already camelCase', custom: false })
+      // One field per declared prop, bound to the stored value — no empty meta field
+      // plus a duplicate "custom" field for the differently-cased key.
+      expect(Object.keys(formTree)).toEqual(['fooBar', 'bazQux', 'quuxCorge'])
+      expect(formTree.fooBar).toMatchObject({ key: 'fooBar', value: 'foo bar value', custom: false })
+      expect(formTree.bazQux).toMatchObject({ key: 'bazQux', value: 'baz qux value', custom: false })
+      expect(formTree.quuxCorge).toMatchObject({ key: 'quuxCorge', value: 'quux corge value', custom: false })
     })
 
     // test('generate props for video component', () => {