Merge pull request #45 from AryanK1511/dev-aryan

Add unit test for `handleHelpOption()` function

tests/unit/option_handlers/handleHelpOption.test.js

@@ -0,0 +1,17 @@
+// tests/unit/option_handlers/handleHelpOption.test.js
+import { jest } from '@jest/globals';
+import handleHelpOption from '../../../src/option_handlers/handleHelpOption.js';
+import commanderProgram from '../../../src/commander/commanderProgram.js';
+
+describe('src/option_handlers/handleHelpOption.js tests', () => {
+  test("handleHelpOption() invokes the commander program's help method", () => {
+    const helpSpy = jest.spyOn(commanderProgram, 'help').mockImplementation(() => {});
+
+    handleHelpOption(commanderProgram);
+
+    // Proves that passing the commanderProgram to handleHelpOption calls the help
+    // method on the commanderProgram
+    expect(helpSpy).toHaveBeenCalled();
+    helpSpy.mockRestore();
+  });
+});