feat: ✨ add util to test requestAnimationFrame

packages/x6-vector/src/global/mock-raf.ts

@@ -0,0 +1,43 @@
+import { Global } from './global'
+
+export class MockRAF {
+  protected realRAF: typeof requestAnimationFrame
+  protected mockRAF: typeof requestAnimationFrame
+  protected realCAF: typeof cancelAnimationFrame
+  protected mockCAF: typeof cancelAnimationFrame
+  protected callbacks: FrameRequestCallback[] = []
+  protected nextTime = 0
+
+  constructor() {
+    this.mockRAF = (fn: FrameRequestCallback) => {
+      this.callbacks.push(fn)
+      return this.callbacks.length
+    }
+
+    this.mockCAF = (requestID: number) => {
+      this.callbacks.splice(requestID, 1)
+    }
+  }
+
+  install(global: Global.WindowType) {
+    this.realRAF = global.requestAnimationFrame
+    this.realCAF = global.cancelAnimationFrame
+    global.requestAnimationFrame = this.mockRAF
+    global.cancelAnimationFrame = this.mockCAF
+  }
+
+  uninstall(global: Global.WindowType) {
+    global.requestAnimationFrame = this.realRAF
+    global.cancelAnimationFrame = this.realCAF
+    this.nextTime = 0
+    this.callbacks = []
+  }
+
+  tick(dt?: number) {
+    this.nextTime += dt || 1
+    this.callbacks.forEach((fn) => {
+      fn(this.nextTime)
+    })
+    this.callbacks = []
+  }
+}