refactor(tui): own overlay terminal primitives

packages/ui/tui/tests/extension.spec.ts

@@ -17,6 +17,13 @@ import {
   TuiOverlayManager,
   type TuiOverlayDriver,
 } from '../src/extension/overlay-manager.ts'
+import {
+  matchesTuiKey,
+  truncateTuiText,
+  TuiKey,
+  tuiVisibleWidth,
+  wrapTuiText,
+} from '../src/index.ts'
 
 const theme: TuiTheme = Object.freeze({
   text: (value: string) => `text:${value}`,
@@ -30,6 +37,17 @@ const theme: TuiTheme = Object.freeze({
   bold: (value: string) => `bold:${value}`,
 })
 
+describe('TUI extension terminal primitives', () => {
+  it('owns semantic keys, ANSI-safe wrapping, truncation, and visible width', () => {
+    expect(matchesTuiKey('\r', TuiKey.enter)).toBe(true)
+    expect(tuiVisibleWidth('\x1b[34m鲸鱼\x1b[39m')).toBe(4)
+    const truncated = truncateTuiText('鲸鱼欢迎', 6)
+    expect(truncated).toContain('鲸鱼欢')
+    expect(tuiVisibleWidth(truncated)).toBe(6)
+    expect(wrapTuiText('\x1b[34m鲸鱼欢迎\x1b[39m', 4)).toHaveLength(2)
+  })
+})
+
 interface ShownOverlay {
   component: Component
   options: TuiOverlayOptions | undefined