Files
dvc/tests/unit/command/test_dag.py
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Saugat Pachhai b9000ed926 pre-commit: update black to 21.5b1 (#6032)
* pre-commit: update black to 21.5b1

also updated others, but black is more noticeable

* remove magic trailing comma
2021-05-18 15:51:15 +00:00

134 lines
4.4 KiB
Python

import networkx as nx
import pytest
from dvc.cli import parse_args
from dvc.command.dag import CmdDAG, _build, _show_ascii, _show_dot
@pytest.mark.parametrize("fmt", [None, "--dot"])
def test_dag(tmp_dir, dvc, mocker, fmt):
tmp_dir.dvc_gen("foo", "foo")
args = ["dag", "--full", "foo.dvc"]
if fmt:
args.append(fmt)
cli_args = parse_args(args)
assert cli_args.func == CmdDAG
cmd = cli_args.func(cli_args)
mocker.patch("dvc.command.dag._build", return_value=dvc.graph)
assert cmd.run() == 0
@pytest.fixture
def repo(tmp_dir, dvc):
tmp_dir.dvc_gen("a", "a")
tmp_dir.dvc_gen("b", "b")
dvc.run(
no_exec=True, deps=["a", "c"], outs=["d", "e"], cmd="cmd1", name="1"
)
dvc.run(
no_exec=True, deps=["b", "c"], outs=["f", "g"], cmd="cmd2", name="2"
)
dvc.run(
no_exec=True,
deps=["a", "b", "c"],
outs=["h", "i"],
cmd="cmd3",
name="3",
)
dvc.run(no_exec=True, deps=["a", "h"], outs=["j"], cmd="cmd4", name="4")
return dvc
def test_build(repo):
assert nx.is_isomorphic(_build(repo), repo.graph)
def test_build_target(repo):
G = _build(repo, target="3")
assert set(G.nodes()) == {"3", "b.dvc", "a.dvc"}
assert set(G.edges()) == {("3", "a.dvc"), ("3", "b.dvc")}
def test_build_target_with_outs(repo):
G = _build(repo, target="3", outs=True)
assert set(G.nodes()) == {"a", "b", "h", "i"}
assert set(G.edges()) == {("i", "a"), ("i", "b"), ("h", "a"), ("h", "b")}
def test_build_granular_target_with_outs(repo):
G = _build(repo, target="h", outs=True)
assert set(G.nodes()) == {"a", "b", "h"}
assert set(G.edges()) == {("h", "a"), ("h", "b")}
def test_build_full(repo):
G = _build(repo, target="3", full=True)
assert nx.is_isomorphic(G, repo.graph)
# NOTE: granular or not, full outs DAG should be the same
@pytest.mark.parametrize("granular", [True, False])
def test_build_full_outs(repo, granular):
target = "h" if granular else "3"
G = _build(repo, target=target, outs=True, full=True)
assert set(G.nodes()) == {"j", "i", "d", "b", "g", "f", "e", "a", "h"}
assert set(G.edges()) == {
("d", "a"),
("e", "a"),
("f", "b"),
("g", "b"),
("h", "a"),
("h", "b"),
("i", "a"),
("i", "b"),
("j", "a"),
("j", "h"),
}
def test_show_ascii(repo):
assert [
line.rstrip() for line in _show_ascii(repo.graph).splitlines()
] == [
" +----------------+ +----------------+", # noqa: E501
" | stage: 'a.dvc' | | stage: 'b.dvc' |", # noqa: E501
" *+----------------+**** +----------------+", # noqa: E501
" ***** * ***** *** ***", # noqa: E501
" **** * ***** ** **", # noqa: E501
" *** * *** ** **", # noqa: E501
"+------------+ ** +------------+ +------------+", # noqa: E501
"| stage: '1' | ** | stage: '3' | | stage: '2' |", # noqa: E501
"+------------+ *** +------------+ +------------+", # noqa: E501
" ** ***",
" ** **",
" ** **",
" +------------+",
" | stage: '4' |",
" +------------+",
]
def test_show_dot(repo):
assert _show_dot(repo.graph) == (
"strict digraph {\n"
"stage;\n"
"stage;\n"
"stage;\n"
"stage;\n"
"stage;\n"
"stage;\n"
"\"stage: '1'\" -> \"stage: 'a.dvc'\";\n"
"\"stage: '2'\" -> \"stage: 'b.dvc'\";\n"
"\"stage: '3'\" -> \"stage: 'a.dvc'\";\n"
"\"stage: '3'\" -> \"stage: 'b.dvc'\";\n"
"\"stage: '4'\" -> \"stage: 'a.dvc'\";\n"
"\"stage: '4'\" -> \"stage: '3'\";\n"
"}\n"
)