Fix lint errors using Ruff

Author: Rhea Lakhotia

pydantic_extra_types/domain.py

@@ -14,7 +14,9 @@
 class DomainStr(str):
     """A string subclass with custom validation for domain string format."""
 
-    _domain_re_pattern = (r'(?=^.{1,253}$)'r'(^((?!-)[a-zA-Z0-9-]{1,63}(?<!-)\.)+'r'([a-zA-Z]{2,63}|xn--[a-zA-Z0-9]{2,59})$)')
+    _domain_re_pattern = (
+        r'(?=^.{1,253}$)' r'(^((?!-)[a-zA-Z0-9-]{1,63}(?<!-)\.)+' r'([a-zA-Z]{2,63}|xn--[a-zA-Z0-9]{2,59})$)'
+    )
 
     @classmethod
     def validate(cls, __input_value: Any, _: Any) -> str:

tests/test_domain.py

@@ -77,20 +77,22 @@ def test_invalid_domain_types(domain: Any):
     with pytest.raises(ValidationError, match='Value must be a string'):
         MyModel(domain=domain)
 
+
 def test_domainstr_with_punycode():
     class Model(BaseModel):
         domain: DomainStr
 
-    valid = "xn--7-7sbirhro.xn--80ahmohdapg.xn--80asehdb"
+    valid = 'xn--7-7sbirhro.xn--80ahmohdapg.xn--80asehdb'
     model = Model(domain=valid)
     assert model.domain == valid
 
+
 def test_domainstr_invalid():
     class Model(BaseModel):
         domain: DomainStr
 
     try:
-        Model(domain="invalid_domain")
-        assert False, "Expected ValidationError"
+        Model(domain='invalid_domain')
+        assert False, 'Expected ValidationError'
     except ValidationError:
-        pass
+        pass