def test_node():
tree1 = Node("foo")
assert tree1.empty == True
assert tree1 == Node("foo")
assert str(tree1) == "<Node 'foo'>"
assert tree1.render() == \
"""\
foo
"""
tree2 = Node("foo", children=["bar", "baz"])
assert tree2.parent == None
assert tree2 != Node("foo", children=["bar", "baz", "boo"])
assert Node("foo", children = ["bar", "baz"]) \
== Node("foo", children = ["bar", "baz"])
assert not Node("foo", children = ["bar", "baz"]) \
== Node("foo", children = ["baz", "boo"])
assert tree2.render() == \
"""\
foo
bar
baz
"""
assert tree2.render(indent = 4) == \
"""\
foo
bar
baz
"""
assert tree2.render(indent = 4, formatter = lambda x: "* %s" % x) == \
"""\
* foo
* bar
* baz
"""
assert tree2.find(lambda x: x.obj == "foo")
assert tree2.find(lambda x: x.obj == "bar")
assert not tree2.find(lambda x: x.obj == "foobaz")
tree3 = Node("foo")
tree3.add_children(["bar", "baz"])
tree4 = Node("foo")
tree4.children = ["bar", "baz"]
with pytest.raises(TypeError):
tree4.children = "bar"
def test_node():
tree1 = Node("foo")
assert tree1.empty == True
assert tree1 == Node("foo")
assert str(tree1) == "<Node 'foo'>"
assert tree1.render() == \
"""\
foo
"""
tree2 = Node("foo", children=["bar", "baz"])
assert tree2.parent == None
assert tree2 != Node("foo", children=["bar", "baz", "boo"])
assert Node("foo", children = ["bar", "baz"]) \
== Node("foo", children = ["bar", "baz"])
assert not Node("foo", children = ["bar", "baz"]) \
== Node("foo", children = ["baz", "boo"])
assert tree2.render() == \
"""\
foo
bar
baz
"""
assert tree2.render(indent = 4) == \
"""\
foo
bar
baz
"""
assert tree2.render(indent = 4, formatter = lambda x: "* %s" % x) == \
"""\
* foo
* bar
* baz
"""
assert tree2.find(lambda x: x.obj == "foo")
assert tree2.find(lambda x: x.obj == "bar")
assert not tree2.find(lambda x: x.obj == "foobaz")
tree3 = Node("foo")
tree3.add_children(["bar", "baz"])
tree4 = Node("foo")
tree4.children = ["bar", "baz"]
with pytest.raises(TypeError):
tree4.children = "bar"
"""
foo
-> bar
-> baz
-> boo
-> boo
-> bar
-> foo
"""
tree5 = Node("foo")
node1 = Node("bar", ["baz", "boo"])
node2 = Node("boo", ["bar", "foo"])
tree5.add_children(node1, node2)
assert tree5.find(node2) == node2
tree5.to_json() == dict(foo=dict(
bar=dict(baz=None, boo=None),
boo=dict(bar=None, foo=None),
))
assert hash(tree5) == id(tree5)
tree6 = Node("foo")
children = [Node("bar"), Node("baz")]
tree6.add_children(*children)
tree6.children = children
assert tree6.children == children
tree7 = Node("foo")
tree8 = Node("bar")
tree8.parent = tree7
assert tree8.parent == tree7
tree8.parent = tree7
assert tree8.parent == tree7