refactor: simplify test setup and improve readability in file-system tests

Author: YogendraShelke

example/__tests__/file-system.harness.ts

@@ -1,38 +1,18 @@
-import { describe, test, expect, beforeEach } from 'react-native-harness';
+import { describe, test, expect } from 'react-native-harness';
 import { NativeFileSystem } from 'mendix-native';
 
 describe('NativeFileSystem', () => {
-  const testDir = 'harness-test-dir';
   const testFile = 'test-file.txt';
-  const testFilePath = `${testDir}/${testFile}`;
-
-  beforeEach(async () => {
-    // Clean up any existing test files/directories
-    try {
-      const exists = await NativeFileSystem.fileExists(testFilePath);
-      if (exists) {
-        await NativeFileSystem.remove(testFilePath);
-      }
-    } catch (error) {
-      // Ignore cleanup errors
-    }
-  });
 
   describe('Constants', () => {
     test('should have DocumentDirectoryPath defined', () => {
       const documentDirectory = NativeFileSystem.DocumentDirectoryPath;
       const relativePath =
         NativeFileSystem.relativeToDocumentsAbsolutePath(testFile);
-      expect(typeof NativeFileSystem.DocumentDirectoryPath).toBe('string');
-      expect(NativeFileSystem.DocumentDirectoryPath.length).toBeGreaterThan(0);
+      expect(typeof documentDirectory).toBe('string');
+      expect(documentDirectory.length).toBeGreaterThan(0);
       expect(relativePath).toBe(`${documentDirectory}/${testFile}`);
-    });
-
-    test('should have SUPPORTS_DIRECTORY_MOVE as true', () => {
       expect(NativeFileSystem.SUPPORTS_DIRECTORY_MOVE).toBe(true);
-    });
-
-    test('should have SUPPORTS_ENCRYPTION as true', () => {
       expect(NativeFileSystem.SUPPORTS_ENCRYPTION).toBe(true);
     });
   });