test: export query report as CSV

frappe/tests/test_query_report.py

@@ -3,7 +3,7 @@
 
 import frappe
 import frappe.utils
-from frappe.desk.query_report import build_xlsx_data
+from frappe.desk.query_report import build_xlsx_data, export_query
 from frappe.tests.utils import FrappeTestCase
 from frappe.utils.xlsxutils import make_xlsx
 
@@ -69,3 +69,42 @@ class TestQueryReport(FrappeTestCase):
 		for row in xlsx_data:
 			# column_b should be 'str' even with composite cell value
 			self.assertEqual(type(row[1]), str)
+
+	def test_csv(self):
+		from csv import QUOTE_ALL, QUOTE_MINIMAL, QUOTE_NONE, QUOTE_NONNUMERIC, DictReader
+		from io import StringIO
+
+		REPORT_NAME = "Test CSV Report"
+		REF_DOCTYPE = "DocType"
+		REPORT_COLUMNS = ["name", "module", "issingle"]
+
+		if not frappe.db.exists("Report", REPORT_NAME):
+			report = frappe.new_doc("Report")
+			report.report_name = REPORT_NAME
+			report.ref_doctype = "User"
+			report.report_type = "Query Report"
+			report.query = frappe.qb.from_(REF_DOCTYPE).select(*REPORT_COLUMNS).limit(10).get_sql()
+			report.is_standard = "No"
+			report.save()
+
+		for delimiter in (",", ";", "\t", "|"):
+			for quoting in (QUOTE_ALL, QUOTE_MINIMAL, QUOTE_NONE, QUOTE_NONNUMERIC):
+				frappe.local.form_dict = {
+					"report_name": REPORT_NAME,
+					"file_format_type": "CSV",
+					"csv_quoting": quoting,
+					"csv_delimiter": delimiter,
+					"include_indentation": 0,
+					"visible_idx": [0, 1, 2],
+				}
+				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)
+					row = reader.__next__()
+					for column in REPORT_COLUMNS:
+						self.assertIn(column, row)
+
+		frappe.delete_doc("Report", REPORT_NAME, delete_permanently=True)