Do not use chai on unit test

20 files changed, 55 insertions, 75 deletions

diff --git a/test/content/operators/impls/AddonOperatorFactoryChain.test.ts b/test/content/operators/impls/AddonOperatorFactoryChain.test.ts
index dde5a35..263104e 100644
--- a/test/content/operators/impls/AddonOperatorFactoryChain.test.ts
+++ b/test/content/operators/impls/AddonOperatorFactoryChain.test.ts
@@ -3,7 +3,6 @@ import EnableAddonOperator from "../../../../src/content/operators/impls/EnableA
 import DisableAddonOperator from "../../../../src/content/operators/impls/DisableAddonOperator";
 import ToggleAddonOperator from "../../../../src/content/operators/impls/ToggleAddonOperator";
 import * as operations from "../../../../src/shared/operations";
-import { expect } from "chai";
 import MockAddonIndicatorClient from "../../mock/MockAddonIndicatorClient";
 import MockAddonEnabledRepository from "../../mock/MockAddonEnabledRepository";
 import MockConsoleFramePresenter from "./MockConsoleFramePresenter";
@@ -16,16 +15,16 @@ describe("AddonOperatorFactoryChain", () => {
         new MockAddonEnabledRepository(),
         new MockConsoleFramePresenter(false)
       );
-      expect(sut.create({ type: operations.ADDON_ENABLE }, 0)).to.be.instanceOf(
+      expect(sut.create({ type: operations.ADDON_ENABLE }, 0)).toBeInstanceOf(
         EnableAddonOperator
       );
-      expect(
-        sut.create({ type: operations.ADDON_DISABLE }, 0)
-      ).to.be.instanceOf(DisableAddonOperator);
+      expect(sut.create({ type: operations.ADDON_DISABLE }, 0)).toBeInstanceOf(
+        DisableAddonOperator
+      );
       expect(
         sut.create({ type: operations.ADDON_TOGGLE_ENABLED }, 0)
-      ).to.be.instanceOf(ToggleAddonOperator);
-      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).to.be.null;
+      ).toBeInstanceOf(ToggleAddonOperator);
+      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).toBeNull;
     });
   });
 });
diff --git a/test/content/operators/impls/BackgroundOperationOperator.test.ts b/test/content/operators/impls/BackgroundOperationOperator.test.ts
index b8b1fbd..77efeb2 100644
--- a/test/content/operators/impls/BackgroundOperationOperator.test.ts
+++ b/test/content/operators/impls/BackgroundOperationOperator.test.ts
@@ -1,7 +1,6 @@
 import * as operations from "../../../../src/shared/operations";
 import BackgroundOperationOperator from "../../../../src/content/operators/impls/BackgroundOperationOperator";
 import OperationClient from "../../../../src/content/client/OperationClient";
-import { expect } from "chai";
 
 class MockOperationClient implements OperationClient {
   public readonly executedOps: {
@@ -30,7 +29,7 @@ describe("BackgroundOperationOperator", () => {
 
       await sut.run();
 
-      expect(client.executedOps).to.deep.equal([
+      expect(client.executedOps).toEqual([
         { op: { type: operations.TAB_CLOSE }, repeat: 2 },
       ]);
     });
diff --git a/test/content/operators/impls/ClipboardOperatorFactoryChain.test.ts b/test/content/operators/impls/ClipboardOperatorFactoryChain.test.ts
index 9ddc229..d4c61c4 100644
--- a/test/content/operators/impls/ClipboardOperatorFactoryChain.test.ts
+++ b/test/content/operators/impls/ClipboardOperatorFactoryChain.test.ts
@@ -1,5 +1,4 @@
 import * as operations from "../../../../src/shared/operations";
-import { expect } from "chai";
 import ClipboardOperatorFactoryChain from "../../../../src/content/operators/impls/ClipboardOperatorFactoryChain";
 import YankURLOperator from "../../../../src/content/operators/impls/YankURLOperator";
 import PasteOperator from "../../../../src/content/operators/impls/PasteOperator";
@@ -19,13 +18,13 @@ describe("ClipboardOperatorFactoryChain", () => {
         new MockSettingRepository(),
         new MockURLRepository()
       );
-      expect(sut.create({ type: operations.URLS_YANK }, 0)).to.be.instanceOf(
+      expect(sut.create({ type: operations.URLS_YANK }, 0)).toBeInstanceOf(
         YankURLOperator
       );
       expect(
         sut.create({ type: operations.URLS_PASTE, newTab: false }, 0)
-      ).to.be.instanceOf(PasteOperator);
-      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).to.be.null;
+      ).toBeInstanceOf(PasteOperator);
+      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).toBeNull;
     });
   });
 });
diff --git a/test/content/operators/impls/DisableAddonOperator.test.ts b/test/content/operators/impls/DisableAddonOperator.test.ts
index e05d1f1..bb137ac 100644
--- a/test/content/operators/impls/DisableAddonOperator.test.ts
+++ b/test/content/operators/impls/DisableAddonOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import DisableAddonOperator from "../../../../src/content/operators/impls/DisableAddonOperator";
 import MockAddonIndicatorClient from "../../mock/MockAddonIndicatorClient";
 import MockAddonEnabledRepository from "../../mock/MockAddonEnabledRepository";
@@ -14,9 +13,9 @@ describe("DisableAddonOperator", () => {
 
       await sut.run();
 
-      expect(client.enabled).to.be.false;
-      expect(repository.enabled).to.be.false;
-      expect(presenter.attached).to.be.false;
+      expect(client.enabled).toBeFalsy;
+      expect(repository.enabled).toBeFalsy;
+      expect(presenter.attached).toBeFalsy;
     });
   });
 });
diff --git a/test/content/operators/impls/EnableAddonOperator.test.ts b/test/content/operators/impls/EnableAddonOperator.test.ts
index 6025608..cd838af 100644
--- a/test/content/operators/impls/EnableAddonOperator.test.ts
+++ b/test/content/operators/impls/EnableAddonOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import EnableAddonOperator from "../../../../src/content/operators/impls/EnableAddonOperator";
 import MockAddonIndicatorClient from "../../mock/MockAddonIndicatorClient";
 import MockAddonEnabledRepository from "../../mock/MockAddonEnabledRepository";
@@ -14,9 +13,9 @@ describe("EnableAddonOperator", () => {
 
       await sut.run();
 
-      expect(client.enabled).to.be.true;
-      expect(repository.enabled).to.be.true;
-      expect(presenter.attached).to.be.true;
+      expect(client.enabled).toBeTruthy;
+      expect(repository.enabled).toBeTruthy;
+      expect(presenter.attached).toBeTruthy;
     });
   });
 });
diff --git a/test/content/operators/impls/EnableJumpMarkOperator.test.ts b/test/content/operators/impls/EnableJumpMarkOperator.test.ts
index 66b4ecd..f81d6dc 100644
--- a/test/content/operators/impls/EnableJumpMarkOperator.test.ts
+++ b/test/content/operators/impls/EnableJumpMarkOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import EnableJumpMarkOperator from "../../../../src/content/operators/impls/EnableJumpMarkOperator";
 import MockMarkKeyRepository from "../../mock/MockMarkKeyRepository";
 
@@ -13,7 +12,7 @@ describe("EnableJumpMarkOperator", () => {
 
       await sut.run();
 
-      expect(repository.jumpMode).to.be.true;
+      expect(repository.jumpMode).toBeTruthy;
     });
   });
 });
diff --git a/test/content/operators/impls/EnableSetMarkOperator.test.ts b/test/content/operators/impls/EnableSetMarkOperator.test.ts
index b28874d..33ce2ba 100644
--- a/test/content/operators/impls/EnableSetMarkOperator.test.ts
+++ b/test/content/operators/impls/EnableSetMarkOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import EnableSetMarkOperator from "../../../../src/content/operators/impls/EnableSetMarkOperator";
 import MockMarkKeyRepository from "../../mock/MockMarkKeyRepository";
 
@@ -13,7 +12,7 @@ describe("EnableSetMarkOperator", () => {
 
       await sut.run();
 
-      expect(repository.setMode).to.be.true;
+      expect(repository.setMode).toBeTruthy;
     });
   });
 });
diff --git a/test/content/operators/impls/FocusOperatorFactoryChain.test.ts b/test/content/operators/impls/FocusOperatorFactoryChain.test.ts
index 91f734b..84a4a52 100644
--- a/test/content/operators/impls/FocusOperatorFactoryChain.test.ts
+++ b/test/content/operators/impls/FocusOperatorFactoryChain.test.ts
@@ -1,5 +1,4 @@
 import * as operations from "../../../../src/shared/operations";
-import { expect } from "chai";
 import FocusOperatorFactoryChain from "../../../../src/content/operators/impls/FocusOperatorFactoryChain";
 import FocusOperator from "../../../../src/content/operators/impls/FocusOperator";
 import MockFocusPresenter from "../../mock/MockFocusPresenter";
@@ -8,10 +7,10 @@ describe("FocusOperatorFactoryChain", () => {
   describe("#create", () => {
     it("returns an operator", () => {
       const sut = new FocusOperatorFactoryChain(new MockFocusPresenter());
-      expect(sut.create({ type: operations.FOCUS_INPUT }, 0)).to.be.instanceOf(
+      expect(sut.create({ type: operations.FOCUS_INPUT }, 0)).toBeInstanceOf(
         FocusOperator
       );
-      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).to.be.null;
+      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).toBeNull;
     });
   });
 });
diff --git a/test/content/operators/impls/FollowOperatorFactoryChain.test.ts b/test/content/operators/impls/FollowOperatorFactoryChain.test.ts
index 91f734b..84a4a52 100644
--- a/test/content/operators/impls/FollowOperatorFactoryChain.test.ts
+++ b/test/content/operators/impls/FollowOperatorFactoryChain.test.ts
@@ -1,5 +1,4 @@
 import * as operations from "../../../../src/shared/operations";
-import { expect } from "chai";
 import FocusOperatorFactoryChain from "../../../../src/content/operators/impls/FocusOperatorFactoryChain";
 import FocusOperator from "../../../../src/content/operators/impls/FocusOperator";
 import MockFocusPresenter from "../../mock/MockFocusPresenter";
@@ -8,10 +7,10 @@ describe("FocusOperatorFactoryChain", () => {
   describe("#create", () => {
     it("returns an operator", () => {
       const sut = new FocusOperatorFactoryChain(new MockFocusPresenter());
-      expect(sut.create({ type: operations.FOCUS_INPUT }, 0)).to.be.instanceOf(
+      expect(sut.create({ type: operations.FOCUS_INPUT }, 0)).toBeInstanceOf(
         FocusOperator
       );
-      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).to.be.null;
+      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).toBeNull;
     });
   });
 });
diff --git a/test/content/operators/impls/HorizontalScrollOperator.test.ts b/test/content/operators/impls/HorizontalScrollOperator.test.ts
index f77a34e..abe6856 100644
--- a/test/content/operators/impls/HorizontalScrollOperator.test.ts
+++ b/test/content/operators/impls/HorizontalScrollOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import HorizontalScrollOperator from "../../../../src/content/operators/impls/HorizontalScrollOperator";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -12,7 +11,7 @@ describe("HorizontalScrollOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 1, y: 0 });
+      expect(presenter.getScroll()).toEqual({ x: 1, y: 0 });
     });
 
     it("scroll horizontally with repeats", async () => {
@@ -22,7 +21,7 @@ describe("HorizontalScrollOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 5, y: 0 });
+      expect(presenter.getScroll()).toEqual({ x: 5, y: 0 });
     });
   });
 });
diff --git a/test/content/operators/impls/MarkOperatorFactoryChain.test.ts b/test/content/operators/impls/MarkOperatorFactoryChain.test.ts
index 1f094dd..99cb756 100644
--- a/test/content/operators/impls/MarkOperatorFactoryChain.test.ts
+++ b/test/content/operators/impls/MarkOperatorFactoryChain.test.ts
@@ -1,5 +1,4 @@
 import * as operations from "../../../../src/shared/operations";
-import { expect } from "chai";
 import MarkOperatorFactoryChain from "../../../../src/content/operators/impls/MarkOperatorFactoryChain";
 import MockMarkKeyRepository from "../../mock/MockMarkKeyRepository";
 import EnableSetMarkOperator from "../../../../src/content/operators/impls/EnableSetMarkOperator";
@@ -11,11 +10,11 @@ describe("MarkOperatorFactoryChain", () => {
       const sut = new MarkOperatorFactoryChain(new MockMarkKeyRepository());
       expect(
         sut.create({ type: operations.MARK_SET_PREFIX }, 0)
-      ).to.be.instanceOf(EnableSetMarkOperator);
+      ).toBeInstanceOf(EnableSetMarkOperator);
       expect(
         sut.create({ type: operations.MARK_JUMP_PREFIX }, 0)
-      ).to.be.instanceOf(EnableJumpMarkOperator);
-      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).to.be.null;
+      ).toBeInstanceOf(EnableJumpMarkOperator);
+      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).toBeNull;
     });
   });
 });
diff --git a/test/content/operators/impls/PageScrollOperator.test.ts b/test/content/operators/impls/PageScrollOperator.test.ts
index 80c9185..77d3a0f 100644
--- a/test/content/operators/impls/PageScrollOperator.test.ts
+++ b/test/content/operators/impls/PageScrollOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import PageScrollOperator from "../../../../src/content/operators/impls/PageScrollOperator";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -12,7 +11,7 @@ describe("PageScrollOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 1, y: 0 });
+      expect(presenter.getScroll()).toEqual({ x: 1, y: 0 });
     });
 
     it("scroll by a page with repeats", async () => {
@@ -22,7 +21,7 @@ describe("PageScrollOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 5, y: 0 });
+      expect(presenter.getScroll()).toEqual({ x: 5, y: 0 });
     });
   });
 });
diff --git a/test/content/operators/impls/ScrollOperatorFactoryChain.test.ts b/test/content/operators/impls/ScrollOperatorFactoryChain.test.ts
index 08034cb..3ba204a 100644
--- a/test/content/operators/impls/ScrollOperatorFactoryChain.test.ts
+++ b/test/content/operators/impls/ScrollOperatorFactoryChain.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import ScrollOperatorFactoryChain from "../../../../src/content/operators/impls/ScrollOperatorFactoryChain";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -20,27 +19,27 @@ describe("ScrollOperatorFactoryChain", () => {
       );
       expect(
         sut.create({ type: operations.SCROLL_HORIZONALLY, count: 10 }, 0)
-      ).to.be.instanceOf(HorizontalScrollOperator);
+      ).toBeInstanceOf(HorizontalScrollOperator);
       expect(
         sut.create({ type: operations.SCROLL_VERTICALLY, count: 10 }, 0)
-      ).to.be.instanceOf(VerticalScrollOperator);
+      ).toBeInstanceOf(VerticalScrollOperator);
       expect(
         sut.create({ type: operations.SCROLL_PAGES, count: 10 }, 0)
-      ).to.be.instanceOf(PageScrollOperator);
-      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).to.be.instanceOf(
+      ).toBeInstanceOf(PageScrollOperator);
+      expect(sut.create({ type: operations.SCROLL_TOP }, 0)).toBeInstanceOf(
         ScrollToTopOperator
       );
-      expect(
-        sut.create({ type: operations.SCROLL_BOTTOM }, 0)
-      ).to.be.instanceOf(ScrollToBottomOperator);
-      expect(sut.create({ type: operations.SCROLL_HOME }, 0)).to.be.instanceOf(
+      expect(sut.create({ type: operations.SCROLL_BOTTOM }, 0)).toBeInstanceOf(
+        ScrollToBottomOperator
+      );
+      expect(sut.create({ type: operations.SCROLL_HOME }, 0)).toBeInstanceOf(
         ScrollToHomeOperator
       );
-      expect(sut.create({ type: operations.SCROLL_END }, 0)).to.be.instanceOf(
+      expect(sut.create({ type: operations.SCROLL_END }, 0)).toBeInstanceOf(
         ScrollToEndOperator
       );
-      expect(sut.create({ type: operations.PAGE_HOME, newTab: false }, 0)).to.be
-        .null;
+      expect(sut.create({ type: operations.PAGE_HOME, newTab: false }, 0))
+        .toBeNull;
     });
   });
 });
diff --git a/test/content/operators/impls/ScrollToBottomOperator.test.ts b/test/content/operators/impls/ScrollToBottomOperator.test.ts
index 500c8f2..f369227 100644
--- a/test/content/operators/impls/ScrollToBottomOperator.test.ts
+++ b/test/content/operators/impls/ScrollToBottomOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import ScrollToBottomOperator from "../../../../src/content/operators/impls/ScrollToBottomOperator";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -12,7 +11,7 @@ describe("ScrollToBottomOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 0, y: Infinity });
+      expect(presenter.getScroll()).toEqual({ x: 0, y: Infinity });
     });
   });
 });
diff --git a/test/content/operators/impls/ScrollToEndOperator.test.ts b/test/content/operators/impls/ScrollToEndOperator.test.ts
index 0c98c8d..304d914 100644
--- a/test/content/operators/impls/ScrollToEndOperator.test.ts
+++ b/test/content/operators/impls/ScrollToEndOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import ScrollToEndOperator from "../../../../src/content/operators/impls/ScrollToEndOperator";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -12,7 +11,7 @@ describe("ScrollToEndOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: Infinity, y: 0 });
+      expect(presenter.getScroll()).toEqual({ x: Infinity, y: 0 });
     });
   });
 });
diff --git a/test/content/operators/impls/ScrollToHomeOperator.test.ts b/test/content/operators/impls/ScrollToHomeOperator.test.ts
index f8614d2..e09c16a 100644
--- a/test/content/operators/impls/ScrollToHomeOperator.test.ts
+++ b/test/content/operators/impls/ScrollToHomeOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import ScrollToHomeOperator from "../../../../src/content/operators/impls/ScrollToHomeOperator";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -12,7 +11,7 @@ describe("ScrollToHomeOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 0, y: 10 });
+      expect(presenter.getScroll()).toEqual({ x: 0, y: 10 });
     });
   });
 });
diff --git a/test/content/operators/impls/ScrollToTopOperator.test.ts b/test/content/operators/impls/ScrollToTopOperator.test.ts
index 25a84ba..7337bea 100644
--- a/test/content/operators/impls/ScrollToTopOperator.test.ts
+++ b/test/content/operators/impls/ScrollToTopOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import ScrollToTopOperator from "../../../../src/content/operators/impls/ScrollToTopOperator";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -12,7 +11,7 @@ describe("ScrollToTopOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 10, y: 0 });
+      expect(presenter.getScroll()).toEqual({ x: 10, y: 0 });
     });
   });
 });
diff --git a/test/content/operators/impls/ToggleAddonOperator.test.ts b/test/content/operators/impls/ToggleAddonOperator.test.ts
index 1f291b5..cc77429 100644
--- a/test/content/operators/impls/ToggleAddonOperator.test.ts
+++ b/test/content/operators/impls/ToggleAddonOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import ToggleAddonOperator from "../../../../src/content/operators/impls/ToggleAddonOperator";
 import MockAddonIndicatorClient from "../../mock/MockAddonIndicatorClient";
 import MockAddonEnabledRepository from "../../mock/MockAddonEnabledRepository";
@@ -14,15 +13,15 @@ describe("ToggleAddonOperator", () => {
 
       await sut.run();
 
-      expect(client.enabled).to.be.false;
-      expect(repository.enabled).to.be.false;
-      expect(presenter.attached).to.be.false;
+      expect(client.enabled).toBeFalsy;
+      expect(repository.enabled).toBeFalsy;
+      expect(presenter.attached).toBeFalsy;
 
       await sut.run();
 
-      expect(client.enabled).to.be.true;
-      expect(repository.enabled).to.be.true;
-      expect(presenter.attached).to.be.true;
+      expect(client.enabled).toBeTruthy;
+      expect(repository.enabled).toBeTruthy;
+      expect(presenter.attached).toBeTruthy;
     });
   });
 });
diff --git a/test/content/operators/impls/VerticalScrollOperator.test.ts b/test/content/operators/impls/VerticalScrollOperator.test.ts
index 05b15d2..1b87060 100644
--- a/test/content/operators/impls/VerticalScrollOperator.test.ts
+++ b/test/content/operators/impls/VerticalScrollOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import VerticalScrollOperator from "../../../../src/content/operators/impls/VerticalScrollOperator";
 import MockScrollPresenter from "../../mock/MockScrollPresenter";
 import MockSettingRepository from "../../mock/MockSettingRepository";
@@ -12,7 +11,7 @@ describe("VerticalScrollOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 0, y: 1 });
+      expect(presenter.getScroll()).toEqual({ x: 0, y: 1 });
     });
 
     it("scroll vertically with repeats", async () => {
@@ -22,7 +21,7 @@ describe("VerticalScrollOperator", () => {
 
       await sut.run();
 
-      expect(presenter.getScroll()).to.deep.equal({ x: 0, y: 5 });
+      expect(presenter.getScroll()).toEqual({ x: 0, y: 5 });
     });
   });
 });
diff --git a/test/content/operators/impls/YankURLOperator.test.ts b/test/content/operators/impls/YankURLOperator.test.ts
index 46e3d06..3db28bf 100644
--- a/test/content/operators/impls/YankURLOperator.test.ts
+++ b/test/content/operators/impls/YankURLOperator.test.ts
@@ -1,4 +1,3 @@
-import { expect } from "chai";
 import MockClipboardRepository from "../../mock/MockClipboardRepository";
 import YankURLOperator from "../../../../src/content/operators/impls/YankURLOperator";
 import MockURLRepository from "../../mock/MockURLRepository";
@@ -18,9 +17,9 @@ describe("YankOperation", () => {
 
       await sut.run();
 
-      expect(clipboardRepository.read()).to.equal("https://example.com/");
-      expect(consoleClient.text).to.equal("Yanked https://example.com/");
-      expect(consoleClient.isError).to.be.false;
+      expect(clipboardRepository.read()).toEqual("https://example.com/");
+      expect(consoleClient.text).toEqual("Yanked https://example.com/");
+      expect(consoleClient.isError).toBeFalsy;
     });
   });
 });