210: Type.__init__() now takes the type as the first argument, does not use subclass attribute; updated Int, Unicode, and their unit tests accordingly

ipalib/ipa_types.py

@@ -51,7 +51,14 @@ class Type(ReadOnly):
     Base class for all IPA types.
     """
 
-    type = None # Override in base class
+    def __init__(self, type_):
+        allowed = (bool, int, float, unicode)
+        if type_ not in allowed:
+            raise ValueError(
+                'type_ must be in %r, got %r' % (type_, allowed)
+            )
+        self.type = type_
+        lock(self)
 
     def __get_name(self):
         """
@@ -75,13 +82,11 @@ class Type(ReadOnly):
 
 
 class Int(Type):
-    type = int
-
     def __init__(self, min_value=None, max_value=None):
         check_min_max(min_value, max_value, 'min_value', 'max_value')
         self.min_value = min_value
         self.max_value = max_value
-        lock(self)
+        super(Int, self).__init__(int)
 
     def validate(self, value):
         if type(value) is not self.type:
@@ -93,8 +98,6 @@ class Int(Type):
 
 
 class Unicode(Type):
-    type = unicode
-
     def __init__(self, min_length=None, max_length=None, pattern=None):
         check_min_max(min_length, max_length, 'min_length', 'max_length')
         if min_length is not None and min_length < 0:
@@ -112,7 +115,7 @@ class Unicode(Type):
             self.regex = None
         else:
             self.regex = re.compile(pattern)
-        lock(self)
+        super(Unicode, self).__init__(unicode)
 
     def validate(self, value):
         if type(value) is not self.type:

ipalib/tests/test_ipa_types.py

@@ -75,13 +75,14 @@ class test_Int(ClassChecker):
 
     def test_class(self):
         assert self.cls.__bases__ == (ipa_types.Type,)
-        assert self.cls.type is int
 
     def test_init(self):
         o = self.cls()
-        assert o.name == 'Int'
-        assert o.min_value is None
-        assert o.max_value is None
+        assert o.__islocked__() is True
+        assert read_only(o, 'type') is int
+        assert read_only(o, 'name') == 'Int'
+        assert read_only(o, 'min_value') is None
+        assert read_only(o, 'max_value') is None
 
         okay = [
             (None, -5),
@@ -122,7 +123,6 @@ class test_Int(ClassChecker):
                 'min_value > max_value: min_value=%d, max_value=%d' % (l, h)
             )
 
-
     def test_call(self):
         o = self.cls()
 
@@ -168,15 +168,16 @@ class test_Unicode(ClassChecker):
 
     def test_class(self):
         assert self.cls.__bases__ == (ipa_types.Type,)
-        assert self.cls.type is unicode
 
     def test_init(self):
         o = self.cls()
+        assert o.__islocked__() is True
+        assert read_only(o, 'type') is unicode
         assert read_only(o, 'name') == 'Unicode'
-        assert o.min_length is None
-        assert o.max_length is None
-        assert o.pattern is None
-        assert o.regex is None
+        assert read_only(o, 'min_length') is None
+        assert read_only(o, 'max_length') is None
+        assert read_only(o, 'pattern') is None
+        assert read_only(o, 'regex') is None
 
         # Test min_length, max_length:
         okay = (