testing bags

tests/core/test_bags.py

@@ -0,0 +1,75 @@
+from mock import Mock
+
+from bonobo import Bag
+from bonobo.core.bags import InheritInputFlag
+
+args = (
+    'foo',
+    'bar', )
+kwargs = dict(acme='corp')
+
+
+def test_basic():
+    my_callable1 = Mock()
+    my_callable2 = Mock()
+    bag = Bag(*args, **kwargs)
+
+    assert not my_callable1.called
+    result1 = bag.apply(my_callable1)
+    assert my_callable1.called and result1 is my_callable1.return_value
+
+    assert not my_callable2.called
+    result2 = bag.apply(my_callable2)
+    assert my_callable2.called and result2 is my_callable2.return_value
+
+    assert result1 is not result2
+
+    my_callable1.assert_called_once_with(*args, **kwargs)
+    my_callable2.assert_called_once_with(*args, **kwargs)
+
+
+def test_inherit():
+    bag = Bag('a', a=1)
+    bag2 = Bag.inherit('b', b=2, _parent=bag)
+    bag3 = bag.extend('c', c=3)
+    bag4 = Bag('d', d=4)
+
+    assert bag.args == ('a', )
+    assert bag.kwargs == {'a': 1}
+    assert bag.flags is ()
+
+    assert bag2.args == (
+        'a',
+        'b', )
+    assert bag2.kwargs == {'a': 1, 'b': 2}
+    assert InheritInputFlag in bag2.flags
+
+    assert bag3.args == (
+        'a',
+        'c', )
+    assert bag3.kwargs == {'a': 1, 'c': 3}
+    assert bag3.flags is ()
+
+    assert bag4.args == ('d', )
+    assert bag4.kwargs == {'d': 4}
+    assert bag4.flags is ()
+
+    bag4.set_parent(bag)
+    assert bag4.args == (
+        'a',
+        'd', )
+    assert bag4.kwargs == {'a': 1, 'd': 4}
+    assert bag4.flags is ()
+
+    bag4.set_parent(bag3)
+    assert bag4.args == (
+        'a',
+        'c',
+        'd', )
+    assert bag4.kwargs == {'a': 1, 'c': 3, 'd': 4}
+    assert bag4.flags is ()
+
+
+def test_repr():
+    bag = Bag('a', a=1)
+    assert repr(bag) == "<Bag ('a', a=1)>"