diff --git a/tests/utils/changeExtensionIcon.spec.ts b/tests/utils/changeExtensionIcon.spec.ts
deleted file mode 100644
index 7934aaa..0000000
--- a/tests/utils/changeExtensionIcon.spec.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import chai from 'chai';
-import changeExtensionIcon from '../../src/utils/changeExtensionIcon';
-
-const expect = chai.expect;
-
-jest.mock('webextension-polyfill', () => {
-  return {
-    runtime: {
-      getManifest: () => {
-        return { version: 'test-version' };
-      },
-    },
-  };
-});
-
-describe('changeExtensionIcon', function () {
-  it('should be a function', function () {
-    expect(changeExtensionIcon).to.be.a('function');
-  });
-});
diff --git a/tests/utils/changeExtensionState.spec.ts b/tests/utils/changeExtensionState.spec.ts
deleted file mode 100644
index d829143..0000000
--- a/tests/utils/changeExtensionState.spec.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import chai from 'chai';
-import changeExtensionState from '../../src/utils/changeExtensionStatus';
-
-const expect = chai.expect;
-
-jest.mock('webextension-polyfill', () => {
-  return {
-    runtime: {
-      getManifest: () => {
-        return { version: 'test-version' };
-      },
-    },
-  };
-});
-
-describe('changeExtensionState', function () {
-  it('should be a function', function () {
-    expect(changeExtensionState).to.be.a('function');
-  });
-});
diff --git a/tests/utils/changeExtensionTooltip.spec.ts b/tests/utils/changeExtensionTooltip.spec.ts
deleted file mode 100644
index d564f2e..0000000
--- a/tests/utils/changeExtensionTooltip.spec.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import chai from 'chai';
-import changeExtensionTooltip from '../../src/utils/changeExtensionTooltip';
-
-const expect = chai.expect;
-
-jest.mock('webextension-polyfill', () => {
-  return {
-    runtime: {
-      getManifest: () => {
-        return { version: 'test-version' };
-      },
-    },
-  };
-});
-
-describe('changeExtensionTooltip', function () {
-  it('should be a function', function () {
-    expect(changeExtensionTooltip).to.be.a('function');
-  });
-
-  // it('should change the extension tooltip', function() {
-  //     changeExtensionTooltip('WakaTime');
-  //     expect(chrome.browserAction.setTitle).toHaveBeenCalledWith({title: 'Wakatime'});
-  //     sinon.assert.calledWithMatch(chrome.browserAction.setTitle, {title: 'WakaTime'});
-  // });
-});