def test_malformed_graph_item(self):
with self.assertRaises(TypeError) as err:
Graph([()])
self.assertEqual(type(err.exception), TypeError)
self.assertEqual(err.exception.args[0], "Graph item incomplete")
with self.assertRaises(TypeError) as err:
Graph([(ATTR, )])
self.assertEqual(type(err.exception), TypeError)
self.assertEqual(err.exception.args[0], "Graph item incomplete")
def test_malformed_graph(self):
with self.assertRaises(TypeError) as err:
Graph(1)
self.assertEqual(type(err.exception), TypeError)
self.assertEqual(err.exception.args[0], "Graph data malformed")
with self.assertRaises(TypeError) as err:
Graph("problematic")
self.assertEqual(type(err.exception), TypeError)
self.assertEqual(err.exception.args[0], "Graph data malformed")
def test_graph_with_attributes(self):
g = Graph(
[
(ATTR, "foo", "1"),
(ATTR, "title", "Testing Attrs"),
(NODE, "a", {"color": "green"}),
(NODE, "c", {}),
(NODE, "b", {"label": "Beta!"}),
(EDGE, "b", "c", {}),
(EDGE, "a", "b", {"color": "blue"}),
(ATTR, "bar", "true"),
]
)
self.assertEqual(
g.nodes,
[
Node("a", {"color": "green"}),
Node("c", {}),
Node("b", {"label": "Beta!"}),
],
)
self.assertEqual(
g.edges, [Edge("b", "c", {}), Edge("a", "b", {"color": "blue"})]
)
self.assertEqual(g.attrs, {"foo": "1", "title": "Testing Attrs", "bar": "true"})
def test_malformed_node(self):
with self.assertRaisesWithMessage(ValueError):
Graph([(NODE, 1, 2, 3)])
def test_malformed_attr(self):
with self.assertRaisesWithMessage(ValueError):
Graph([(ATTR, 1, 2, 3)])
def test_malformed_graph_item(self):
with self.assertRaisesWithMessage(TypeError):
Graph([()])
with self.assertRaisesWithMessage(TypeError):
Graph([(ATTR, )])
def test_malformed_graph(self):
with self.assertRaisesWithMessage(TypeError):
Graph(1)
with self.assertRaisesWithMessage(TypeError):
Graph("problematic")
def test_empty_graph(self):
g = Graph()
self.assertEqual(g.nodes, [])
self.assertEqual(g.edges, [])
self.assertEqual(g.attrs, {})
def test_graph_with_one_attribute(self):
g = Graph([(ATTR, "foo", "1")])
self.assertEqual(g.nodes, [])
self.assertEqual(g.edges, [])
self.assertEqual(g.attrs, {"foo": "1"})
def test_unknown_item(self):
with self.assertRaises(ValueError) as err:
Graph([(99, 1, 2)])
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "Unknown item")
def test_graph_with_one_node_with_keywords(self):
g = Graph([(NODE, "a", {"color": "green"})])
self.assertEqual(g.nodes, [Node("a", {"color": "green"})])
self.assertEqual(g.edges, [])
self.assertEqual(g.attrs, {})
def test_graph_with_one_node(self):
g = Graph([(NODE, "a", {})])
self.assertEqual(g.nodes, [Node("a", {})])
self.assertEqual(g.edges, [])
self.assertEqual(g.attrs, {})
def test_malformed_EDGE(self):
with self.assertRaises(ValueError) as err:
Graph([(EDGE, 1, 2)])
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "Edge is malformed")
def test_malformed_node(self):
with self.assertRaises(ValueError) as err:
Graph([(NODE, 1, 2, 3)])
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "Node is malformed")
def test_malformed_attr(self):
with self.assertRaises(ValueError) as err:
Graph([(ATTR, 1, 2, 3)])
self.assertEqual(type(err.exception), ValueError)
self.assertEqual(err.exception.args[0], "Attribute is malformed")
def test_malformed_EDGE(self):
with self.assertRaisesWithMessage(ValueError):
Graph([(EDGE, 1, 2)])
def test_unknown_item(self):
with self.assertRaisesWithMessage(ValueError):
Graph([(99, 1, 2)])
def test_graph_with_one_edge(self):
g = Graph([(EDGE, "a", "b", {})])
self.assertEqual(g.nodes, [])
self.assertEqual(g.edges, [Edge("a", "b", {})])
self.assertEqual(g.attrs, {})
