Add first unit tests for cdata.js

tools/cdata-test.js

@@ -0,0 +1,75 @@
+const assert = require('node:assert');
+const { describe, it, before, after, mock, test } = require('node:test');
+const fs = require('fs');
+const path = require('path');
+const cdata = require('./cdata.js');
+
+describe('Caching', function () {
+  describe('isFileNewerThan', function () {
+    before(function () {
+      // Create a temporary file before the test
+      fs.writeFileSync('temp.txt', 'Hello World');
+    });
+
+    it('should return true if the file is newer than the provided time', function () {
+      const pastTime = Date.now() - 10000; // 10 seconds ago
+      assert.equal(cdata.isFileNewerThan('temp.txt', pastTime), true);
+    });
+
+    it('should return false if the file is older than the provided time', function () {
+      const futureTime = Date.now() + 10000; // 10 seconds in the future
+      assert.equal(cdata.isFileNewerThan('temp.txt', futureTime), false);
+    });
+
+    it('should return false if the file does not exist', function () {
+      assert.equal(cdata.isFileNewerThan('nonexistent.txt', Date.now()), false);
+    });
+
+    // delete the temporary file after the test
+    after(function () {
+      fs.unlinkSync('temp.txt');
+    });
+  });
+
+  describe('isAnyFileInFolderNewerThan', function () {
+    const testFolderPath = path.join(__dirname, 'testFolder');
+    const oldFilePath = path.join(testFolderPath, 'oldFile.txt');
+    const newFilePath = path.join(testFolderPath, 'newFile.txt');
+
+    before(function () {
+      // Create test folder
+      if (!fs.existsSync(testFolderPath)) {
+        fs.mkdirSync(testFolderPath);
+      }
+
+      // Create an old file
+      fs.writeFileSync(oldFilePath, 'This is an old file.');
+      // Modify the 'mtime' to simulate an old file
+      const oldTime = new Date();
+      oldTime.setFullYear(oldTime.getFullYear() - 1);
+      fs.utimesSync(oldFilePath, oldTime, oldTime);
+
+      // Create a new file
+      fs.writeFileSync(newFilePath, 'This is a new file.');
+    });
+
+    it('should return true if a file in the folder is newer than the given time', function () {
+      const folderPath = path.join(__dirname, 'testFolder');
+      const time = fs.statSync(path.join(folderPath, 'oldFile.txt')).mtime;
+      assert.strictEqual(cdata.isAnyFileInFolderNewerThan(folderPath, time), true);
+    });
+
+    it('should return false if no files in the folder are newer than the given time', function () {
+      const folderPath = path.join(__dirname, 'testFolder');
+      const time = new Date();
+      assert.strictEqual(cdata.isAnyFileInFolderNewerThan(folderPath, time), false);
+    });
+
+    after(function () {
+      // Delete test folder
+      if (fs.existsSync(testFolderPath)) {
+        fs.rmSync(testFolderPath, { recursive: true });
+      }
+    });
+  });
+});