re-adding py.test.mark as documented (!) by adding pytest_keyword plugin

--HG--
branch : 1.0.x

py/test/plugin/pytest_keyword.py

@@ -0,0 +1,79 @@
+"""
+    py.test.mark / keyword plugin 
+
+"""
+import py
+
+def pytest_namespace(config):
+    mark = KeywordDecorator({})
+    return {'mark': mark}
+
+class KeywordDecorator:
+    """ decorator for setting function attributes. """
+    def __init__(self, keywords, lastname=None):
+        self._keywords = keywords
+        self._lastname = lastname
+
+    def __call__(self, func=None, **kwargs):
+        if func is None:
+            kw = self._keywords.copy()
+            kw.update(kwargs)
+            return KeywordDecorator(kw)
+        elif not hasattr(func, 'func_dict'):
+            kw = self._keywords.copy()
+            name = self._lastname
+            if name is None:
+                name = "mark"
+            kw[name] = func
+            return KeywordDecorator(kw)
+        func.func_dict.update(self._keywords)
+        return func 
+
+    def __getattr__(self, name):
+        if name[0] == "_":
+            raise AttributeError(name)
+        kw = self._keywords.copy()
+        kw[name] = True
+        return self.__class__(kw, lastname=name)
+
+def test_pytest_mark_getattr():
+    mark = KeywordDecorator({})
+    def f(): pass
+
+    mark.hello(f)
+    assert f.hello == True
+
+    mark.hello("test")(f)
+    assert f.hello == "test"
+
+    py.test.raises(AttributeError, "mark._hello")
+    py.test.raises(AttributeError, "mark.__str__")
+
+def test_pytest_mark_call():
+    mark = KeywordDecorator({})
+    def f(): pass
+    mark(x=3)(f)
+    assert f.x == 3
+    def g(): pass
+    mark(g)
+    assert not g.func_dict
+
+    mark.hello(f)
+    assert f.hello == True
+
+    mark.hello("test")(f)
+    assert f.hello == "test"
+
+    mark("x1")(f)
+    assert f.mark == "x1"
+
+def test_mark_plugin(testdir):
+    p = testdir.makepyfile("""
+        import py
+        pytest_plugins = "keyword" 
+        @py.test.mark.hello
+        def test_hello():
+            assert hasattr(test_hello, 'hello')
+    """)
+    result = testdir.runpytest(p)
+    assert result.stdout.fnmatch_lines(["*passed*"])