1 files changed, 4 insertions, 3 deletions
diff --git a/test/background/operators/impls/ZoomInOperator.test.ts b/test/background/operators/impls/ZoomInOperator.test.ts
index 097e760..1d42421 100644
--- a/test/background/operators/impls/ZoomInOperator.test.ts
+++ b/test/background/operators/impls/ZoomInOperator.test.ts
@@ -1,4 +1,3 @@
-import sinon from "sinon";
 import ZoomInOperator from "../../../../src/background/operators/impls/ZoomInOperator";
 import MockZoomPresenter from "../../mock/MockZoomPresenter";
 
@@ -6,12 +5,14 @@ describe("ZoomInOperator", () => {
   describe("#run", () => {
     it("zoom-out the current tab", async () => {
       const zoomPresenter = new MockZoomPresenter();
-      const mock = sinon.mock(zoomPresenter).expects("zoomIn").once();
+      const zoomInSpy = jest
+        .spyOn(zoomPresenter, "zoomIn")
+        .mockReturnValue(Promise.resolve());
 
       const sut = new ZoomInOperator(zoomPresenter);
       await sut.run();
 
-      mock.verify();
+      expect(zoomInSpy).toBeCalled();
     });
   });
 });