diff --git a/eslint.config.js b/eslint.config.js
index fb24507c..ee2561fd 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -24,6 +24,7 @@ export default antfu(
       'no-tabs': 0,
       'import/first': 0,
       'node/prefer-global/process': 0,
+      'style/no-tabs': 0,
     },
   },
 )
diff --git a/packages/cli/test/utils/apply-color-mapping.test.ts b/packages/cli/test/utils/apply-color-mapping.test.ts
index 1fb0de6a..4bbb7f53 100644
--- a/packages/cli/test/utils/apply-color-mapping.test.ts
+++ b/packages/cli/test/utils/apply-color-mapping.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, test } from 'vitest'
+import { describe, expect, it } from 'vitest'
 
 import {
   applyColorMapping,
@@ -7,7 +7,7 @@ import {
 import baseColor from '../fixtures/colors/slate.json'
 
 describe('split class', () => {
-  test.each([
+  it.each([
     {
       input: 'bg-popover',
       output: [null, 'bg-popover', null],
@@ -50,7 +50,7 @@ describe('split class', () => {
 })
 
 describe('apply color mapping', async () => {
-  test.each([
+  it.each([
     {
       input: 'bg-background text-foreground',
       output: 'bg-white text-slate-950 dark:bg-slate-950 dark:text-slate-50',
diff --git a/packages/cli/test/utils/apply-prefix.test.ts b/packages/cli/test/utils/apply-prefix.test.ts
new file mode 100644
index 00000000..dd13349d
--- /dev/null
+++ b/packages/cli/test/utils/apply-prefix.test.ts
@@ -0,0 +1,42 @@
+import { describe, expect, it } from 'vitest'
+
+import { applyPrefix } from '../../src/utils/transformers/transform-tw-prefix'
+
+describe('apply tailwind prefix', () => {
+  it.each([
+    {
+      input: 'bg-slate-800 text-gray-500',
+      output: 'tw-bg-slate-800 tw-text-gray-500',
+    },
+    {
+      input: 'hover:dark:bg-background dark:text-foreground',
+      output: 'hover:dark:tw-bg-background dark:tw-text-foreground',
+    },
+    {
+      input:
+        'rounded-lg border border-slate-200 bg-white text-slate-950 shadow-sm dark:border-slate-800 dark:bg-slate-950 dark:text-slate-50',
+      output:
+        'tw-rounded-lg tw-border tw-border-slate-200 tw-bg-white tw-text-slate-950 tw-shadow-sm dark:tw-border-slate-800 dark:tw-bg-slate-950 dark:tw-text-slate-50',
+    },
+    {
+      input:
+        'text-red-500 border-red-500/50 dark:border-red-500 [&>svg]:text-red-500 text-red-500 dark:text-red-900 dark:border-red-900/50 dark:dark:border-red-900 dark:[&>svg]:text-red-900 dark:text-red-900',
+      output:
+        'tw-text-red-500 tw-border-red-500/50 dark:tw-border-red-500 [&>svg]:tw-text-red-500 tw-text-red-500 dark:tw-text-red-900 dark:tw-border-red-900/50 dark:dark:tw-border-red-900 dark:[&>svg]:tw-text-red-900 dark:tw-text-red-900',
+    },
+    {
+      input:
+        'flex h-full w-full items-center justify-center rounded-full bg-muted',
+      output:
+        'tw-flex tw-h-full tw-w-full tw-items-center tw-justify-center tw-rounded-full tw-bg-muted',
+    },
+    {
+      input:
+        'absolute right-4 top-4 bg-primary rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-secondary',
+      output:
+        'tw-absolute tw-right-4 tw-top-4 tw-bg-primary tw-rounded-sm tw-opacity-70 tw-ring-offset-background tw-transition-opacity hover:tw-opacity-100 focus:tw-outline-none focus:tw-ring-2 focus:tw-ring-ring focus:tw-ring-offset-2 disabled:tw-pointer-events-none data-[state=open]:tw-bg-secondary',
+    },
+  ])(`applyTwPrefix($input) -> $output`, ({ input, output }) => {
+    expect(applyPrefix(input, 'tw-')).toBe(output)
+  })
+})