fix: assertAlmostEqual with precision (#19794)

(cherry picked from commit 4bcb126)

Co-authored-by: barredterra <14891507+barredterra@users.noreply.github.com>

frappe/model/base_document.py

@@ -1062,7 +1062,7 @@ def get_password(self, fieldname="password", raise_exception=True):
 	def is_dummy_password(self, pwd):
 		return "".join(set(pwd)) == "*"
 
-	def precision(self, fieldname, parentfield=None):
+	def precision(self, fieldname, parentfield=None) -> int | None:
 		"""Returns float precision for a particular field (or get global default).
 
 		:param fieldname: Fieldname for which precision is required.

frappe/tests/utils.py

@@ -54,12 +54,14 @@ def assertDocumentEqual(self, expected, actual):
 			else:
 				self._compare_field(value, actual.get(field), actual, field)
 
-	def _compare_field(self, expected, actual, doc, field):
+	def _compare_field(self, expected, actual, doc: BaseDocument, field: str):
 		msg = f"{field} should be same."
 
 		if isinstance(expected, float):
 			precision = doc.precision(field)
-			self.assertAlmostEqual(expected, actual, f"{field} should be same to {precision} digits")
+			self.assertAlmostEqual(
+				expected, actual, places=precision, msg=f"{field} should be same to {precision} digits"
+			)
 		elif isinstance(expected, (bool, int)):
 			self.assertEqual(expected, cint(actual), msg=msg)
 		elif isinstance(expected, datetime_like_types):