diff --git a/frontend/src/test/setup.ts b/frontend/src/test/setup.ts
index bdd9bbe..cd10a57 100644
--- a/frontend/src/test/setup.ts
+++ b/frontend/src/test/setup.ts
@@ -1,27 +1,32 @@
 import '@testing-library/jest-dom'
 
-global.ResizeObserver = class ResizeObserver {
+const MockResizeObserver = class {
   observe() {}
   unobserve() {}
   disconnect() {}
 }
+;(globalThis as any).ResizeObserver = MockResizeObserver
 
-global.DOMRect = class DOMRect {
-  x: number; y: number; width: number; height: number; top: number; right: number; bottom: number; left: number
+const MockDOMRect = class {
+  x = 0; y = 0; width = 0; height = 0; top = 0; right = 0; bottom = 0; left = 0
   constructor(x = 0, y = 0, width = 0, height = 0) {
     this.x = x; this.y = y; this.width = width; this.height = height
     this.top = y; this.right = x + width; this.bottom = y + height; this.left = x
   }
-  static fromRect() { return new DOMRect() }
+  static fromRect() { return new (MockDOMRect as any)() }
   toJSON() { return { x: this.x, y: this.y, width: this.width, height: this.height, top: this.top, right: this.right, bottom: this.bottom, left: this.left } }
 }
+;(globalThis as any).DOMRect = MockDOMRect
 
-global.DOMMatrix = class DOMMatrix {
+const MockDOMMatrix = class {
   a = 1; b = 0; c = 0; d = 1; e = 0; f = 0
   is2D = true
   isIdentity = true
-  static fromMatrix() { return new DOMMatrix() }
-  multiply() { return new DOMMatrix() }
-  translate() { return new DOMMatrix() }
-  scale() { return new DOMMatrix() }
+  static fromMatrix() { return new (MockDOMMatrix as any)() }
+  static fromFloat32Array() { return new (MockDOMMatrix as any)() }
+  static fromFloat64Array() { return new (MockDOMMatrix as any)() }
+  multiply() { return new (MockDOMMatrix as any)() }
+  translate() { return new (MockDOMMatrix as any)() }
+  scale() { return new (MockDOMMatrix as any)() }
 }
+;(globalThis as any).DOMMatrix = MockDOMMatrix