def test_data_provider(self):
""" Context will pull missing attributes from the data
provider and cache them within its own data.
"""
class AbcProvider(Provider):
def __init__(self, a, b, c):
self._a = a
self._b = b
self._c = c
@Provider.data_point
def a(self, context):
return self._a
@Provider.data_point
def ab(self, context):
return context.a + self._b
@Provider.data_point
def abc(self, context):
return context.ab + self._c
c = Context(data_provider=AbcProvider('A', 'b', 'C'))
self.assertEqual(c.abc, 'AbC')
c._data_provider = None
self.assertEqual(c.a, 'A')
self.assertEqual(c.ab, 'Ab')
self.assertEqual(c.abc, 'AbC')
del c['ab']
self.assertNotIn('ab', c)
self.assertEqual(len(c), 2)
def test_data_provider(self):
""" Context will pull missing attributes from the data
provider and cache them within its own data.
"""
class AbcProvider(Provider):
def __init__(self, a, b, c):
self._a = a
self._b = b
self._c = c
@Provider.data_point
def a(self, context):
return self._a
@Provider.data_point
def ab(self, context):
return context.a + self._b
@Provider.data_point
def abc(self, context):
return context.ab + self._c
c = Context(data_provider=AbcProvider('A', 'b', 'C'))
self.assertEqual(c.abc, 'AbC')
c._data_provider = None
self.assertEqual(c.a, 'A')
self.assertEqual(c.ab, 'Ab')
self.assertEqual(c.abc, 'AbC')
del c['ab']
self.assertNotIn('ab', c)
self.assertEqual(len(c), 2)
def test_nested_context(self):
c = Context()
nc = Context(data_provider=c)
c.foo = 'hello'
self.assertEqual(nc.foo, 'hello')
c.foo = 'goodbye'
self.assertEqual(nc.foo, 'hello')
self.assertEqual(c.foo, 'goodbye')
def test_nested_context(self):
c = Context()
nc = Context(data_provider=c)
c.foo = 'hello'
self.assertEqual(nc.foo, 'hello')
c.foo = 'goodbye'
self.assertEqual(nc.foo, 'hello')
self.assertEqual(c.foo, 'goodbye')
def test_basic_subclass(self):
class FooBarProvider(Provider):
def __init__(self, foo='Whatever'):
self._foo = foo
@Provider.data_point('foo', 'Foo', 'Gives self.foo')
def foo(self, context):
return self._foo
@Provider.data_point
def bar(self, context):
"""Return context.bar"""
return context.bar
prov = FooBarProvider('foo value')
self.assertEqual(prov.foo.key, 'foo')
self.assertEqual(prov.foo.name, 'Foo')
self.assertEqual(prov.foo.doc, 'Gives self.foo')
self.assertEqual(prov.bar.key, 'bar')
self.assertEqual(prov.bar.name, 'bar')
self.assertEqual(prov.bar.doc, 'Return context.bar')
self.assertEqual(prov.foo({}), 'foo value')
self.assertEqual(prov.bar(Context({'bar': 'is bar'})), 'is bar')
self.assertEqual(prov.get_data_points(), {
'foo': prov.foo,
'bar': prov.bar
})
def test_backward_propagation(self):
c1 = Context()
c2 = Context(data_provider=c1)
c3 = Context(data_provider=c2)
c4 = Context(data_provider=c3)
c4.msg = 'hello'
c4.get_data_points()
self.assertEqual(c2.get('msg'), None)
self.assertEqual(c3.get('msg'), None)
def test_to_dict(self):
c = Context(foo='bar', bar='baz')
self.assertEqual(c.to_dict(), {'foo': 'bar', 'bar': 'baz'})
def test_backward_propagation(self):
c1 = Context()
c2 = Context(data_provider=c1)
c3 = Context(data_provider=c2)
c4 = Context(data_provider=c3)
c4.msg = 'hello'
c4.get_data_points()
self.assertEqual(c2.get('msg'), None)
self.assertEqual(c3.get('msg'), None)
def test_to_dict(self):
c = Context(foo='bar', bar='baz')
self.assertEqual(c.to_dict(), {'foo': 'bar', 'bar': 'baz'})
def setUp(self):
self.d = Context({'foo': 'bar', 'bar': 'baz'})