test(utils): add tests for utility functions in utils folder

test/utils/deleteDirectoryRecursively.test.js

@@ -0,0 +1,78 @@
+import { expect } from 'chai'
+import sinon from 'sinon';
+import fs from 'fs/promises';
+import path from "path";
+import deleteDirectoryRecursively from "../../src/utils/deleteDirectoryRecursively.js";
+
+describe('DeleteDirectoryRecursively', () => {
+  let readdirStub, unlinkStub, rmdirStub;
+
+  beforeEach(() => {
+    readdirStub = sinon.stub(fs, 'readdir');
+    unlinkStub = sinon.stub(fs, 'unlink');
+    rmdirStub = sinon.stub(fs, 'rmdir');
+  });
+
+  afterEach(() => {
+    readdirStub.restore();
+    unlinkStub.restore();
+    rmdirStub.restore();
+  });
+
+  it('should delete an empty directory', async () => {
+    const dirPath = 'testDir';
+
+    readdirStub.withArgs(dirPath).resolves([]);
+    rmdirStub.withArgs(dirPath).resolves();
+
+    await deleteDirectoryRecursively(dirPath);
+
+    expect(readdirStub.calledOnce).to.be.true;
+    expect(rmdirStub.calledOnceWith(dirPath)).to.be.true;
+  });
+
+  it('should delete a directory with files', async () => {
+    const dirPath = 'dir';
+    const filePath = path.join(dirPath, 'file.txt');
+
+    readdirStub.withArgs(dirPath).resolves([{ name: 'file.txt', isDirectory: () => false }]);
+    unlinkStub.withArgs(filePath).resolves();
+    rmdirStub.withArgs(dirPath).resolves();
+
+    await deleteDirectoryRecursively(dirPath);
+
+    expect(readdirStub.calledOnce).to.be.true;
+    expect(unlinkStub.calledOnceWith(filePath)).to.be.true;
+    expect(rmdirStub.calledOnceWith(dirPath)).to.be.true;
+  });
+
+  it('should delete a nested directory with files', async () => {
+    const dirPath = 'dir';
+    const nestedDirPath = path.join(dirPath, 'nestedDir');
+    const filePath = path.join(dirPath, 'file.txt');
+    const nestedFilePath = path.join(nestedDirPath, 'nestedFile.txt');
+
+    readdirStub.withArgs(dirPath).resolves([
+      { name: 'file.txt', isDirectory: () => false },
+      { name: 'nestedDir', isDirectory: () => true },
+    ]);
+
+    readdirStub.withArgs(nestedDirPath).resolves([
+      { name: 'nestedFile.txt', isDirectory: () => false },
+    ]);
+
+    unlinkStub.withArgs(filePath).resolves();
+    unlinkStub.withArgs(nestedFilePath).resolves();
+    rmdirStub.withArgs(dirPath).resolves();
+    rmdirStub.withArgs(nestedDirPath).resolves();
+
+    await deleteDirectoryRecursively(dirPath);
+
+    expect(readdirStub.calledTwice).to.be.true;
+    expect(unlinkStub.calledTwice).to.be.true;
+    expect(unlinkStub.calledWith(filePath)).to.be.true;
+    expect(unlinkStub.calledWith(nestedFilePath)).to.be.true;
+    expect(rmdirStub.calledWith(nestedDirPath)).to.be.true;
+    expect(rmdirStub.calledWith(dirPath)).to.be.true;
+  });
+})