diff --git a/packages/bbob-preset-vue/test/index.test.ts b/packages/bbob-preset-vue/test/index.test.ts
index 7f4c9942..a9e75e47 100644
--- a/packages/bbob-preset-vue/test/index.test.ts
+++ b/packages/bbob-preset-vue/test/index.test.ts
@@ -1,24 +1,28 @@
+import type { PresetTagFunction } from "@bbob/types";
+
 import preset, { createTags, tagAttr } from '../src'
 
+const tagFactory = (tag: string): PresetTagFunction => jest.fn((...args) => ({ tag }))
+const createTag = (tag: string, style: Record<string, string>) => ({ tag, ...tagAttr(style)})
+
 describe('@bbob/preset-vue', () => {
   test('is a function', () => {
     expect(preset).toBeInstanceOf(Function)
   })
 
   test('createTags', () => {
-    const defFn = jest.fn(() => ({}))
     const defTags = {
-      b: defFn,
-      i: defFn,
-      u: defFn,
-      s: defFn,
+      b: tagFactory('b'),
+      i: tagFactory('i'),
+      u: tagFactory('u'),
+      s: tagFactory('s'),
     }
     const tags = createTags(defTags)
     const args = [{tag: 'test'}]
 
-    expect(tags.b?.({tag: 'b'}, ...args)).toEqual(tagAttr({ fontWeight: 'bold' }))
-    expect(tags.i?.({tag: 'i'}, ...args)).toEqual(tagAttr({ fontStyle: 'italic' }))
-    expect(tags.u?.({tag: 'u'}, ...args)).toEqual(tagAttr({ textDecoration: 'underline' }))
-    expect(tags.s?.({tag: 's'}, ...args)).toEqual(tagAttr({ textDecoration: 'line-through' }))
+    expect(tags.b?.({tag: 'b'}, ...args)).toEqual(createTag('b',{ fontWeight: 'bold' }))
+    expect(tags.i?.({tag: 'i'}, ...args)).toEqual(createTag('i',{ fontStyle: 'italic' }))
+    expect(tags.u?.({tag: 'u'}, ...args)).toEqual(createTag('u',{ textDecoration: 'underline' }))
+    expect(tags.s?.({tag: 's'}, ...args)).toEqual(createTag('s',{ textDecoration: 'line-through' }))
   })
 });