added Match assertion

README.rst

@@ -4,8 +4,14 @@ eqassertion
 
 assertions in `__eq__` methods.
 
+>>> from eqassertions import Any, NotNone, IsA, IsTrue, Match
 >>> data = {"a": 1, "b": 2}
 >>> assert {"a": 1, "b": Any()}
 >>> assert {"a": 1, "b": NotNone()}
 >>> assert {"a": 1, "b": IsA(int)}
 >>> assert {"a": 1, "b": IsTrue()}
+>>> assert v == {"a": 1, "b": Match(r"\d")}
+>>> assert v == {"a": 1, "b": Match(r"[a-z]")}
+Traceback (most recent call last):
+ ...
+AssertionError

eqassertions/__init__.py

@@ -1,4 +1,6 @@
-__version__ = '0.1.1'
+import re
+
+__version__ = '0.2'
 
 
 class Any:
@@ -38,3 +40,19 @@ def __init__(self, typ):
 
     def __eq__(self, o):
         return isinstance(o, self.typ)
+
+
+class Match:
+    """
+    >>> v = {"a": 1, "b": 2}
+    >>> assert v == {"a": 1, "b": Match(r"\d")}
+    >>> assert v == {"a": 1, "b": Match(r"[a-z]")}
+    Traceback (most recent call last):
+     ...
+    AssertionError
+    """
+    def __init__(self, pattern):
+        self.pt = re.compile(pattern)
+
+    def __eq__(self, o):
+        return self.pt.match(str(o))