test: child table creation and transitioning

frappe/tests/test_child_table.py

@@ -0,0 +1,66 @@
+import frappe
+from frappe.model import child_table_fields
+
+import unittest
+from typing import Callable
+
+
+class TestChildTable(unittest.TestCase):
+	def tearDown(self) -> None:
+		try:
+			frappe.delete_doc("DocType", self.doctype_name, force=1)
+		except Exception:
+			pass
+
+	def test_child_table_doctype_creation_and_transitioning(self) -> None:
+		'''
+		This method tests the creation of child table doctype
+		as well as it's transitioning from child table to normal and normal to child table doctype
+		'''
+
+		self.doctype_name = "Test Newy Child Table"
+
+		try:
+			doc = frappe.get_doc({
+				"doctype": "DocType",
+				"name": self.doctype_name,
+				"istable": 1,
+				"custom": 1,
+				"module": "Integrations",
+				"fields": [{
+					"label": "Some Field",
+					"fieldname": "some_fieldname",
+					"fieldtype": "Data",
+					"reqd": 1
+				}]
+			}).insert(ignore_permissions=True)
+		except Exception:
+			self.fail("Not able to create Child Table Doctype")
+
+
+		for column in child_table_fields:
+			self.assertTrue(frappe.db.has_column(self.doctype_name, column))
+
+		# check transitioning from child table to normal doctype
+		doc.istable = 0
+		try:
+			doc.save(ignore_permissions=True)
+		except Exception:
+			self.fail("Not able to transition from Child Table Doctype to Normal Doctype")
+
+		self.check_valid_columns(self.assertFalse)
+
+		# check transitioning from normal to child table doctype
+		doc.istable = 1
+		try:
+			doc.save(ignore_permissions=True)
+		except Exception:
+			self.fail("Not able to transition from Normal Doctype to Child Table Doctype")
+
+		self.check_valid_columns(self.assertTrue)
+
+
+	def check_valid_columns(self, assertion_method: Callable) -> None:
+		valid_columns = frappe.get_meta(self.doctype_name).get_valid_columns()
+		for column in child_table_fields:
+			assertion_method(column in valid_columns)