Custom equal helpers

Should be enriched with a generic equality in the future for pure domain model classes formed of elementary types (str, int, float...).

As of today it only contains one helper method.

custom_equal

Compare whether two elements are both None or both not None and equals (same type/same value)

Attributes are:

• element_1: the first element of the comparison
• element_2: the second element of the comparison
• element_type: the expected element type for both elements

Some examples

# test custom equal float equality
self.assertTrue(custom_equal(3.0, 2.99999999999999, float))
# test custom equal str equality
self.assertTrue(custom_equal('3.0', '3.0', str))
# test custom equal none equality
self.assertTrue(custom_equal(None, None, str))
# test custom equal different type inequality
self.assertFalse(custom_equal('3.0', 3.0, str))