def test_all_supporters(self):
dag = DepDag()
a = Vertex('a', dag)
a.depends_on('b')
b = dag['b']
b.depends_on('c')
self.assertEqual(['b', 'c'], names_list(a.all_supporters()))
def test_all_supporters(self):
vmap = VerticesMap(None)
a = Vertex('a', vmap)
a.depends_on('b')
b = vmap['b']
b.depends_on('c')
self.assertEqual(['b', 'c'], a.supporters(recurse=True))
def test_has_payload__for_callable(self):
vertex = Vertex('vertex_44', DepDag())
self.assertFalse(vertex.has_payload())
call_log = list()
def has_payload_callback():
call_log.append('CALLED')
return True
vertex.payload = has_payload_callback
self.assertTrue(vertex.has_payload())
self.assertEqual(['CALLED'], call_log)
def test_depends_on__test_supporters(self):
vtx = Vertex('vertex_0', VerticesMap(None))
vtx.depends_on('vertex_1', 'vertex_2')
expected = ['vertex_1', 'vertex_2']
self.assertEqual(expected, vtx.supporters(recurse=False))
vtx.depends_on('vertex_2', 'vertex_3')
expected = ['vertex_1', 'vertex_2', 'vertex_3']
self.assertEqual(expected, vtx.supporters(recurse=False))
def test_depends_on__test_supporters(self):
vertex = Vertex('vertex_0', DepDag())
vertex.depends_on('vertex_1', 'vertex_2')
expected = ['vertex_1', 'vertex_2']
self.assertEqual(expected, names_list(vertex.direct_supporters()))
vertex.depends_on('vertex_2', 'vertex_3')
expected = ['vertex_1', 'vertex_2', 'vertex_3']
self.assertEqual(expected, names_list(vertex.direct_supporters()))
def test_is_resolved__simplest_case(self):
vmap = VerticesMap(None)
a = Vertex('a', vmap)
a.depends_on('b')
self.assertFalse(a.is_resolved())
b = vmap['b']
self.assertFalse(b.is_resolved())
b.payload = 'payload for vert-b'
self.assertFalse(a.is_resolved())
self.assertTrue(b.is_resolved())
a.payload = 'payload for vert-a'
self.assertTrue(a.is_resolved())
self.assertTrue(b.is_resolved())
def test_is_resolved__simplest_case(self):
dag = DepDag()
a = Vertex('a', dag)
a.depends_on('b')
self.assertFalse(a.is_resolved())
b = dag['b']
self.assertFalse(b.is_resolved())
b.payload = 'payload for vert-b'
self.assertFalse(a.is_resolved())
self.assertTrue(b.is_resolved())
a.payload = 'payload for vert-a'
self.assertTrue(a.is_resolved())
self.assertTrue(b.is_resolved())
def test__setitem__(self):
vert = VerticesMap(None)
with self.assertRaises(NotImplementedError):
vert['whatever'] = Vertex('whatever', vert)
def test_provide_payload(self):
vertex = Vertex('vertex_33', VerticesMap(None))
self.assertFalse(vertex.provided)
vertex.payload = "any payload would do"
self.assertTrue(vertex.provided)
def test__repr__(self):
vtx = Vertex('vertex_22', VerticesMap(None))
expected = "<Vertex(name='vertex_22') object at 0x"
self.assertTrue(repr(vtx).startswith(expected))
def test__setitem__(self):
dag = DepDag()
with self.assertRaises(NotImplementedError):
dag['whatever'] = Vertex('whatever', dag)
def test_has_payload__for_object(self):
vertex = Vertex('vertex_33', DepDag())
self.assertFalse(vertex.has_payload())
vertex.payload = "any payload would do"
self.assertTrue(vertex.has_payload())
def test__repr__(self):
vertex = Vertex('vertex_22', DepDag())
expected = "<Vertex(name='vertex_22') object at 0x"
self.assertTrue(repr(vertex).startswith(expected))
def test__setattr__(self):
dag = DepDag()
with self.assertRaises(AttributeError):
dag.whatever = Vertex('whatever', dag)
def test_creation__test_name(self):
vertex = Vertex('vertex_11', VerticesMap(None))
self.assertEqual('vertex_11', vertex.name)
self.assertFalse(vertex.provided)
def test__setattr__(self):
vert = VerticesMap(None)
with self.assertRaises(AttributeError):
vert.z = Vertex('z', vert)
def test_creation__test_name(self):
vertex = Vertex('vertex_11', DepDag())
self.assertEqual('vertex_11', vertex.name)
self.assertFalse(vertex.has_payload())