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from shutil import which
from pytest import mark
from test2ref import assert_refdata
from anytree import Node
from anytree.dotexport import RenderTreeGraph
def test_tree1(tmp_path):
"""Tree1."""
root = Node("root")
s0 = Node("sub0", parent=root)
Node("sub0B", parent=s0)
Node("sub0A", parent=s0)
s1 = Node("sub1", parent=root)
Node("sub1A", parent=s1)
Node("sub1B", parent=s1)
s1c = Node("sub1C", parent=s1)
Node(99, parent=s1c)
RenderTreeGraph(root).to_dotfile(tmp_path / "tree1.dot")
assert_refdata(test_tree1, tmp_path)
def test_tree2(tmp_path):
"""Tree2."""
root = Node("root")
s0 = Node("sub0", parent=root, edge=2)
Node("sub0B", parent=s0, foo=4, edge=109)
Node("sub0A", parent=s0, edge="")
s1 = Node("sub1", parent=root, edge="")
Node("sub1A", parent=s1, edge=7)
Node("sub1B", parent=s1, edge=8)
s1c = Node("sub1C", parent=s1, edge=22)
Node("sub1Ca", parent=s1c, edge=42)
def nodenamefunc(node):
return f"{node.name}:{node.depth}"
def edgeattrfunc(node, child):
return f'label="{node.name}:{child.name}"'
r = RenderTreeGraph(
root,
options=["rankdir=LR;"],
nodenamefunc=nodenamefunc,
nodeattrfunc=lambda node: "shape=box",
edgeattrfunc=edgeattrfunc,
)
r.to_dotfile(tmp_path / "tree2.dot")
assert_refdata(test_tree2, tmp_path)
@mark.skipif(which("dot") is None, reason="requires graphviz`s `dot` command")
def test_tree_png(tmp_path):
"""Tree to png."""
root = Node("root")
s0 = Node("sub0", parent=root)
Node("sub0B", parent=s0)
Node("sub0A", parent=s0)
s1 = Node("sub1", parent=root)
Node("sub1A", parent=s1)
Node("sub1B", parent=s1)
s1c = Node("sub1C", parent=s1)
Node("sub1Ca", parent=s1c)
RenderTreeGraph(root).to_picture(tmp_path / "tree1.png")
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