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

apps/desktop/electron/hud-cursor.test.ts

@@ -0,0 +1,50 @@
+/**
+ * Unit tests for the HUD's Linux cursor conversion. These cover the two things
+ * that decide whether the bar is clickable: landing on the right point, and
+ * admitting when the cursor has left.
+ */
+
+import assert from 'node:assert/strict'
+
+import { test } from 'vitest'
+
+import { cursorPointInWindow } from './hud-cursor'
+
+// A HUD parked 300px right and 200px down, 620×320 as it is created.
+const BOUNDS = { x: 300, y: 200, width: 620, height: 320 }
+
+test('screen cursor becomes a point relative to the window', () => {
+  assert.deepEqual(cursorPointInWindow({ x: 300, y: 200 }, BOUNDS, 1), { x: 0, y: 0 })
+  assert.deepEqual(cursorPointInWindow({ x: 460, y: 240 }, BOUNDS, 1), { x: 160, y: 40 })
+})
+
+test('a zoomed page reports CSS pixels, not device-independent ones', () => {
+  // At 0.9 the page is wider than the window in CSS pixels, so a point half way
+  // across the window is further than half way across the document.
+  assert.deepEqual(cursorPointInWindow({ x: 610, y: 380 }, BOUNDS, 0.9), {
+    x: 310 / 0.9,
+    y: 180 / 0.9
+  })
+})
+
+test('a cursor outside the window is reported as lost', () => {
+  for (const outside of [
+    { x: 299, y: 300 },
+    { x: 500, y: 199 },
+    { x: 920, y: 300 },
+    { x: 500, y: 520 }
+  ]) {
+    assert.equal(cursorPointInWindow(outside, BOUNDS, 1), null)
+  }
+})
+
+test('the far edges belong to the window on entry, not on exit', () => {
+  assert.deepEqual(cursorPointInWindow({ x: 919, y: 519 }, BOUNDS, 1), { x: 619, y: 319 })
+  assert.equal(cursorPointInWindow({ x: 920, y: 520 }, BOUNDS, 1), null)
+})
+
+test('a nonsense zoom factor is treated as unzoomed rather than poisoning the point', () => {
+  for (const bad of [0, -1, Number.NaN, Number.POSITIVE_INFINITY]) {
+    assert.deepEqual(cursorPointInWindow({ x: 460, y: 240 }, BOUNDS, bad), { x: 160, y: 40 })
+  }
+})