Import AITURK IDE 1.0.0-beta.1 from Hermes 63279301; preserve MIT license

ui-tui/src/__tests__/virtualHistoryClamp.test.ts

@@ -0,0 +1,19 @@
+import { describe, expect, it } from 'vitest'
+
+import { shouldSetVirtualClamp } from '../hooks/useVirtualHistory.js'
+
+describe('virtual history clamp bounds', () => {
+  it('does not clamp sticky live tail content', () => {
+    expect(shouldSetVirtualClamp({ itemCount: 20, sticky: true, viewportHeight: 10 })).toBe(false)
+  })
+
+  it('sets clamp bounds after manual scroll breaks sticky mode', () => {
+    expect(shouldSetVirtualClamp({ itemCount: 20, sticky: false, viewportHeight: 10 })).toBe(true)
+  })
+
+  it('does not clamp while a live tail is growing below virtual history', () => {
+    expect(shouldSetVirtualClamp({ itemCount: 20, liveTailActive: true, sticky: false, viewportHeight: 10 })).toBe(
+      false
+    )
+  })
+})