fix: corrected flush job for passing test_flush

frappe/email/queue.py

@@ -348,17 +348,20 @@ def flush(from_test=False):
 				smtpserver = SMTPServer()
 				smtpserver_dict[email.sender] = smtpserver
 				
-			send_one_args = {
-				'email': email.name,
-				'smtpserver': smtpserver,
-				'auto_commit': auto_commit,
-				'from_test': from_test
-			}
-			enqueue(
-				method = 'frappe.email.queue.send_one',
-				queue = 'short',
-				**send_one_args
-			)
+			if from_test:
+				send_one(email.name, smtpserver, auto_commit, from_test=from_test)
+			else:
+				send_one_args = {
+					'email': email.name,
+					'smtpserver': smtpserver,
+					'auto_commit': auto_commit,
+					'from_test': from_test
+				}
+				enqueue(
+					method = 'frappe.email.queue.send_one',
+					queue = 'short',
+					**send_one_args
+				)
 
 		# NOTE: removing commit here because we pass auto_commit
 		# finally:
@@ -387,8 +390,13 @@ def send_one(email, smtpserver=None, auto_commit=True, now=False, from_test=Fals
 			`tabEmail Queue`
 		where
 			name=%s
-		for update''', email, as_dict=True)[0]
-
+		for update''', email, as_dict=True)
+	
+	if len(email):
+		email = email[0]
+	else:
+		return
+	
 	recipients_list = frappe.db.sql('''select name, recipient, status from
 		`tabEmail Queue Recipient` where parent=%s''', email.name, as_dict=1)