diff --git a/plugins/plugin-md-power/__test__/cleanMarkdownEnv.spec.ts b/plugins/plugin-md-power/__test__/cleanMarkdownEnv.spec.ts
new file mode 100644
index 00000000..7ccfed08
--- /dev/null
+++ b/plugins/plugin-md-power/__test__/cleanMarkdownEnv.spec.ts
@@ -0,0 +1,37 @@
+import { describe, expect, it } from 'vitest'
+import { cleanMarkdownEnv, type CleanMarkdownEnv } from '../src/node/utils/cleanMarkdownEnv.js'
+
+describe('cleanMarkdownEnv', () => {
+  const env: CleanMarkdownEnv = {
+    base: 'base',
+    filePath: 'filePath',
+    filePathRelative: 'filePathRelative',
+    references: 'references',
+    abbreviations: 'abbreviations',
+    annotations: 'annotations',
+    // @ts-expect-error should be ignored
+    foo: 'foo',
+    bar: 'bar',
+  }
+  it('should clean markdown env', () => {
+    const result = cleanMarkdownEnv(env)
+    expect(result).toEqual({
+      base: 'base',
+      filePath: 'filePath',
+      filePathRelative: 'filePathRelative',
+      references: 'references',
+      abbreviations: 'abbreviations',
+      annotations: 'annotations',
+    })
+  })
+
+  it('should clean markdown env with excludes', () => {
+    const result = cleanMarkdownEnv(env, ['references', 'abbreviations'])
+    expect(result).toEqual({
+      base: 'base',
+      filePath: 'filePath',
+      filePathRelative: 'filePathRelative',
+      annotations: 'annotations',
+    })
+  })
+})
diff --git a/plugins/plugin-md-power/__test__/stringifyAttrs.spec.ts b/plugins/plugin-md-power/__test__/stringifyAttrs.spec.ts
index 0f4b01d8..fdea1283 100644
--- a/plugins/plugin-md-power/__test__/stringifyAttrs.spec.ts
+++ b/plugins/plugin-md-power/__test__/stringifyAttrs.spec.ts
@@ -45,6 +45,10 @@ describe('stringifyAttrs', () => {
     expect(stringifyAttrs({ id: '{ "foo": "bar", baz: 1 }', class: '["a", "b"]' })).toBe(' :id="{ \'foo\': \'bar\', baz: 1 }" :class="[\'a\', \'b\']"')
   })
 
+  it('should handle like json string values with force stringify', () => {
+    expect(stringifyAttrs({ id: '{ "foo": "bar", baz: 1 }', class: '["a", "b"]' }, false, ['class'])).toBe(' :id="{ \'foo\': \'bar\', baz: 1 }" class="[\'a\', \'b\']"')
+  })
+
   it('should handle kebabCase keys', () => {
     expect(stringifyAttrs({ 'data-foo': 'bar', 'data-baz': 1, 'fooBaz': 'bar' })).toBe(' data-foo="bar" :data-baz="1" foo-baz="bar"')
   })