diff --git a/src/tests/integration/config-file-repository.test.ts b/src/tests/integration/config-file-repository.test.ts
index 0795e0900..8679147b4 100644
--- a/src/tests/integration/config-file-repository.test.ts
+++ b/src/tests/integration/config-file-repository.test.ts
@@ -2,7 +2,6 @@ import * as fs from "fs";
 import { ConfigFileRepository } from "../../ts/config-file-repository";
 import { WebSearch } from "../../ts/web-search";
 import { ConfigOptions } from "../../ts/config-options";
-import { dummyWebSearches } from "../unit/test-helpers";
 
 const defaultConfig = {
     webSearches: [
diff --git a/src/tests/integration/count-file-repository.test.ts b/src/tests/integration/count-file-repository.test.ts
index 47a00f3c4..0f10760bd 100644
--- a/src/tests/integration/count-file-repository.test.ts
+++ b/src/tests/integration/count-file-repository.test.ts
@@ -1,4 +1,4 @@
-import { writeFileSync, unlinkSync, existsSync, writeSync } from "fs";
+import { writeFileSync, unlinkSync, existsSync } from "fs";
 import { Count } from "../../ts/count";
 import { CountFileRepository } from "../../ts/count-file-repository";
 import { join } from "path";
diff --git a/src/tests/integration/helpers/file-helpers.test.ts b/src/tests/integration/helpers/file-helpers.test.ts
index 10b6b46ee..cf7bc1bb5 100644
--- a/src/tests/integration/helpers/file-helpers.test.ts
+++ b/src/tests/integration/helpers/file-helpers.test.ts
@@ -1,9 +1,6 @@
-import * as fs from "fs";
-import * as os from "os";
-import * as path from "path";
 import { FileHelpers } from "../../../ts/helpers/file-helpers";
 import { join } from "path";
-import { mkdirSync, writeFileSync, unlinkSync, rmdirSync, chmodSync } from "fs";
+import { mkdirSync, writeFileSync, unlinkSync, rmdirSync } from "fs";
 
 describe(FileHelpers.name, (): void => {
     describe(FileHelpers.getFilesFromFolder.name, (): void => {
diff --git a/src/tests/unit/count-manager.test.ts b/src/tests/unit/count-manager.test.ts
index 168c12c18..eba1bdee8 100644
--- a/src/tests/unit/count-manager.test.ts
+++ b/src/tests/unit/count-manager.test.ts
@@ -1,6 +1,5 @@
 import { CountManager } from "../../ts/count-manager";
 import { FakeCountRepository } from "./fake-count-repository";
-import { exec } from "child_process";
 import { Count } from "../../ts/count";
 
 describe("CountManager", (): void => {
diff --git a/src/tests/unit/execution-argument-validators/file-path-execution-argument-validator.test.ts b/src/tests/unit/execution-argument-validators/file-path-execution-argument-validator.test.ts
index 6ef832f82..1d929a850 100644
--- a/src/tests/unit/execution-argument-validators/file-path-execution-argument-validator.test.ts
+++ b/src/tests/unit/execution-argument-validators/file-path-execution-argument-validator.test.ts
@@ -1,6 +1,4 @@
 import { FilePathExecutionArgumentValidator } from "../../../ts/execution-argument-validators/file-path-execution-argument-validator";
-import { Injector } from "../../../ts/injector";
-import { OperatingSystem } from "../../../ts/operating-system";
 import { invalidMacOsFilePaths, invalidWindowsFilePaths, validMacOsFilePaths, validWindowsFilePaths } from "../test-helpers";
 import { platform } from "os";
 
diff --git a/src/tests/unit/execution-service.test.ts b/src/tests/unit/execution-service.test.ts
index 39f2947f0..48ee94a66 100644
--- a/src/tests/unit/execution-service.test.ts
+++ b/src/tests/unit/execution-service.test.ts
@@ -75,7 +75,6 @@ describe(ExecutionService.name, (): void => {
             const logExecution = false;
 
             const executor1 = new FakeExecutor(hideAfterExecution, resetUserInputAfterExecution, logExecution);
-            const executor2 = new FakeExecutor(hideAfterExecution, resetUserInputAfterExecution, logExecution);
 
             const combinations = [
                 {
@@ -100,7 +99,6 @@ describe(ExecutionService.name, (): void => {
             const logExecution = false;
 
             const executor1 = new FakeExecutor(hideAfterExecution, resetUserInputAfterExecution, logExecution);
-            const executor2 = new FakeExecutor(hideAfterExecution, resetUserInputAfterExecution, logExecution);
 
             const combinations = [
                 {
@@ -125,7 +123,6 @@ describe(ExecutionService.name, (): void => {
             const logExecution = true;
 
             const executor1 = new FakeExecutor(hideAfterExecution, resetUserInputAfterExecution, logExecution);
-            const executor2 = new FakeExecutor(hideAfterExecution, resetUserInputAfterExecution, logExecution);
 
             const combinations = [
                 {
diff --git a/src/tests/unit/helpers/operating-system-helpers.test.ts b/src/tests/unit/helpers/operating-system-helpers.test.ts
index d38445fd8..7240a1911 100644
--- a/src/tests/unit/helpers/operating-system-helpers.test.ts
+++ b/src/tests/unit/helpers/operating-system-helpers.test.ts
@@ -33,7 +33,7 @@ describe(OperatingSystemHelpers.name, () => {
 
             for (const unsupportedPlatform of unsupportedPlatforms) {
                 try {
-                    const actual = OperatingSystemHelpers.getOperatingSystemFromString(unsupportedPlatform);
+                    OperatingSystemHelpers.getOperatingSystemFromString(unsupportedPlatform);
                 } catch (error) {
                     expect(error instanceof OperatingSystemNotSupportedError).toBe(true);
                     errorCounter++;
diff --git a/src/tests/unit/input-validation-service.test.ts b/src/tests/unit/input-validation-service.test.ts
index ddc016a2c..e68d44f26 100644
--- a/src/tests/unit/input-validation-service.test.ts
+++ b/src/tests/unit/input-validation-service.test.ts
@@ -1,5 +1,4 @@
 import { InputValidationService } from "../../ts/input-validation-service";
-import { InputValidatorSearcherCombination } from "../../ts/input-validator-searcher-combination";
 import { FakeSearcher } from "./fake-searcher";
 import { FakeInputValidator } from "./fake-input-validator";
 import { SearchResultItem } from "../../ts/search-result-item";
diff --git a/src/tests/unit/input-validators/calculator-input-validator.test.ts b/src/tests/unit/input-validators/calculator-input-validator.test.ts
index 5fad3174f..e2e1a8c64 100644
--- a/src/tests/unit/input-validators/calculator-input-validator.test.ts
+++ b/src/tests/unit/input-validators/calculator-input-validator.test.ts
@@ -1,4 +1,3 @@
-import { Injector } from "../../../ts/injector";
 import { CalculatorInputValidator } from "../../../ts/input-validators/calculator-input-validator";
 
 describe(CalculatorInputValidator.name, (): void => {
diff --git a/src/tests/unit/input-validators/file-path-input-validator.test.ts b/src/tests/unit/input-validators/file-path-input-validator.test.ts
index 8a88f8ea7..2ab4e4ce1 100644
--- a/src/tests/unit/input-validators/file-path-input-validator.test.ts
+++ b/src/tests/unit/input-validators/file-path-input-validator.test.ts
@@ -1,6 +1,4 @@
-import { Injector } from "../../../ts/injector";
 import { FilePathInputValidator } from "../../../ts/input-validators/file-path-input-validator";
-import { OperatingSystem } from "../../../ts/operating-system";
 import { platform } from "os";
 
 describe(FilePathInputValidator.name, (): void => {
diff --git a/src/tests/unit/input-validators/search-plugins-input-validator.test.ts b/src/tests/unit/input-validators/search-plugins-input-validator.test.ts
index be7cd0beb..104cd6555 100644
--- a/src/tests/unit/input-validators/search-plugins-input-validator.test.ts
+++ b/src/tests/unit/input-validators/search-plugins-input-validator.test.ts
@@ -1,4 +1,3 @@
-import { Injector } from "../../../ts/injector";
 import { SearchPluginsInputValidator } from "../../../ts/input-validators/search-plugins-input-validator";
 
 describe(SearchPluginsInputValidator.name, (): void => {
diff --git a/src/tests/unit/input-validators/web-search-input-validator.test.ts b/src/tests/unit/input-validators/web-search-input-validator.test.ts
index b1f6e529c..26462ef78 100644
--- a/src/tests/unit/input-validators/web-search-input-validator.test.ts
+++ b/src/tests/unit/input-validators/web-search-input-validator.test.ts
@@ -1,5 +1,4 @@
 import { WebSearchHelpers } from "../../../ts/helpers/web-search-helper";
-import { Injector } from "../../../ts/injector";
 import { WebSearchInputValidator } from "../../../ts/input-validators/web-search-input-validator";
 import { dummyWebSearches } from "../test-helpers";
 
diff --git a/src/tests/unit/input-validators/web-url-input-validator.test.ts b/src/tests/unit/input-validators/web-url-input-validator.test.ts
index f0309bfd3..ae11caf3c 100644
--- a/src/tests/unit/input-validators/web-url-input-validator.test.ts
+++ b/src/tests/unit/input-validators/web-url-input-validator.test.ts
@@ -1,4 +1,3 @@
-import { Injector } from "../../../ts/injector";
 import { WebUrlInputValidator } from "../../../ts/input-validators/web-url-input-validator";
 import { validUrls, invalidUrls } from "../test-helpers";
 
diff --git a/src/tests/unit/search-engine.test.ts b/src/tests/unit/search-engine.test.ts
index 32c7087af..6214d72a9 100644
--- a/src/tests/unit/search-engine.test.ts
+++ b/src/tests/unit/search-engine.test.ts
@@ -3,7 +3,6 @@ import { SearchEngine } from "./../../ts/search-engine";
 import { CountManager } from "../../ts/count-manager";
 import { FakeCountRepository } from "./fake-count-repository";
 import { Count } from "../../ts/count";
-import { defaultConfig } from "../../ts/default-config";
 
 describe("SearchEngine", (): void => {
     const threshold = 4; // same as default config
diff --git a/src/tests/unit/user-input-history-manager.test.ts b/src/tests/unit/user-input-history-manager.test.ts
index c932f00b9..d0019c328 100644
--- a/src/tests/unit/user-input-history-manager.test.ts
+++ b/src/tests/unit/user-input-history-manager.test.ts
@@ -1,5 +1,4 @@
 import { TestableUserInputHistoryManager } from "./testable-user-input-history-manager";
-import { UserInputHistoryManager } from "../../ts/user-input-history-manager";
 
 describe(TestableUserInputHistoryManager.name, (): void => {
     describe("addItem", (): void => {
@@ -45,9 +44,9 @@ describe(TestableUserInputHistoryManager.name, (): void => {
             const manager = new TestableUserInputHistoryManager();
             manager.setHistory(history);
 
-            for (const historyItem of history) {
+            history.forEach(() => {
                 manager.getPrevious();
-            }
+            });
 
             const actual = manager.getPrevious();
 
@@ -95,9 +94,9 @@ describe(TestableUserInputHistoryManager.name, (): void => {
             manager.setHistory(history);
             manager.setIndex(-1);
 
-            for (const historyItem of history) {
+            history.forEach(() => {
                 manager.getNext();
-            }
+            });
 
             const acutal = manager.getNext();
 
diff --git a/src/ts/main.ts b/src/ts/main.ts
index e59232c25..250b52753 100644
--- a/src/ts/main.ts
+++ b/src/ts/main.ts
@@ -1,4 +1,4 @@
-import { app, BrowserWindow, globalShortcut, ipcMain, Menu, MenuItem, Tray, screen } from "electron";
+import { app, BrowserWindow, globalShortcut, ipcMain, Menu, Tray, screen } from "electron";
 import { autoUpdater } from "electron-updater";
 import { join } from "path";
 import { FilePathExecutionArgumentValidator } from "./execution-argument-validators/file-path-execution-argument-validator";