feat: add test for exporting reportview as CSV

frappe/tests/test_reportview.py

@@ -0,0 +1,34 @@
+# Copyright (c) 2019, Frappe Technologies Pvt. Ltd. and Contributors
+# License: MIT. See LICENSE
+
+import frappe
+from frappe.desk.reportview import export_query
+from frappe.tests.utils import FrappeTestCase
+
+
+class TestReportview(FrappeTestCase):
+	def test_csv(self):
+		from csv import QUOTE_ALL, QUOTE_MINIMAL, QUOTE_NONE, QUOTE_NONNUMERIC, DictReader
+		from io import StringIO
+
+		frappe.local.form_dict = frappe._dict(
+			doctype="DocType",
+			title="Test Report",
+			file_format_type="CSV",
+		)
+
+		for delimiter in (",", ";", "\t", "|"):
+			for quoting in (QUOTE_ALL, QUOTE_MINIMAL, QUOTE_NONE, QUOTE_NONNUMERIC):
+				frappe.local.form_dict.update(
+					{
+						"csv_quoting": quoting,
+						"csv_delimiter": delimiter,
+					}
+				)
+				export_query()
+
+				self.assertTrue(frappe.response["filename"].endswith(".csv"))
+				self.assertEqual(frappe.response["type"], "binary")
+				with StringIO(frappe.response["filecontent"].decode("utf-8")) as result:
+					reader = DictReader(result, delimiter=delimiter, quoting=quoting)
+					reader.__next__()