feat: Add Reports for teams (#3116)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/javascript/dashboard/helper/specs/downloadCsvFile.spec.js

@@ -0,0 +1,21 @@
+import { downloadCsvFile } from '../downloadCsvFile';
+
+const fileName = 'test.csv';
+const fileData = `Agent name,Conversations count,Avg first response time (Minutes),Avg resolution time (Minutes)
+Pranav,36,114,28411`;
+
+describe('#downloadCsvFile', () => {
+  it('should download the csv file', () => {
+    const link = {
+      click: jest.fn(),
+    };
+    jest.spyOn(document, 'createElement').mockImplementation(() => link);
+
+    downloadCsvFile(fileName, fileData);
+    expect(link.download).toEqual(fileName);
+    expect(link.href).toEqual(
+      `data:text/csv;charset=utf-8,${encodeURI(fileData)}`
+    );
+    expect(link.click).toHaveBeenCalledTimes(1);
+  });
+});