fix: move function, test: added test for folder operations

src/test/FolderOperations.spec.ts

@@ -0,0 +1,54 @@
+import { SASViyaApiClient } from '../SASViyaApiClient'
+
+const sampleResponse = `{
+  "creationTimeStamp": "2021-01-06T14:09:27.705Z",
+  "modifiedTimeStamp": "2021-01-06T14:46:57.391Z",
+  "createdBy": "dctestuser1",
+  "modifiedBy": "dctestuser1",
+  "id": "00000-00000-00000-00000-00000",
+  "name": "test",
+  "parentFolderUri":"/folders/folders/00000-00000-00000-00000-00000",
+  "type": "folder",
+  "memberCount":"1"
+}`
+
+describe('FolderOperations', () => {
+  let originalFetch: any
+
+  const sasViyaApiClient = new SASViyaApiClient(
+    'https://sample.server.com',
+    '/Public',
+    'Context',
+    function() {}
+  )
+
+  beforeAll(() => {
+    originalFetch = (global as any).fetch
+  })
+
+  beforeEach(() => {
+    ;(global as any).fetch = jest.fn().mockImplementation(() =>
+      Promise.resolve({
+        text: () => Promise.resolve(sampleResponse),
+        json: () => Promise.resolve(sampleResponse),
+        ok: true,
+        headers: {
+          get: function() { return '' }
+        }
+      })
+    )
+  })
+
+  afterAll(() => {
+    ;(global as any).fetch = originalFetch
+  })
+
+  it('should move folder successfully', async (done) => {
+    let res: any = await sasViyaApiClient.moveFolder('/Test/test', '/Test/toFolder', 'toFolder', 'token')
+    
+    expect(JSON.stringify(res)).toEqual(
+      JSON.stringify(sampleResponse)
+    )
+    done()
+  })
+})