Files
dvc/tests/func/params/test_diff.py
T
Ruslan Kuprieiev 597ab98d0e diff: hanle repo with no commits (#3784)
`git diff` doesn't throw errors, so we could do the same.

Fixes #3398
2020-05-14 02:14:37 +03:00

133 lines
3.7 KiB
Python

def test_diff_no_params(tmp_dir, scm, dvc):
assert dvc.params.diff() == {}
def test_diff_no_changes(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo: bar")
dvc.run(params=["foo"], single_stage=True)
scm.add(["params.yaml", "Dvcfile"])
scm.commit("bar")
assert dvc.params.diff() == {}
def test_diff(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo: bar")
dvc.run(params=["foo"], single_stage=True)
scm.add(["params.yaml", "Dvcfile"])
scm.commit("bar")
tmp_dir.scm_gen("params.yaml", "foo: baz", commit="baz")
tmp_dir.scm_gen("params.yaml", "foo: qux", commit="qux")
assert dvc.params.diff(a_rev="HEAD~2") == {
"params.yaml": {"foo": {"old": "bar", "new": "qux"}}
}
def test_diff_new(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo: bar")
dvc.run(params=["foo"], single_stage=True)
assert dvc.params.diff() == {
"params.yaml": {"foo": {"old": None, "new": "bar"}}
}
def test_diff_deleted(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo: bar")
dvc.run(params=["foo"], single_stage=True)
scm.add(["params.yaml", "Dvcfile"])
scm.commit("bar")
(tmp_dir / "params.yaml").unlink()
assert dvc.params.diff() == {
"params.yaml": {"foo": {"old": "bar", "new": None}}
}
def test_diff_deleted_config(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo: bar")
dvc.run(params=["foo"], single_stage=True)
scm.add(["params.yaml", "Dvcfile"])
scm.commit("bar")
(tmp_dir / "params.yaml").unlink()
assert dvc.params.diff() == {
"params.yaml": {"foo": {"old": "bar", "new": None}}
}
def test_diff_list(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo:\n- bar\n- baz")
dvc.run(params=["foo"], single_stage=True)
scm.add(["params.yaml", "Dvcfile"])
scm.commit("foo")
tmp_dir.gen("params.yaml", "foo:\n- bar\n- baz\n- qux")
assert dvc.params.diff() == {
"params.yaml": {
"foo": {"old": "['bar', 'baz']", "new": "['bar', 'baz', 'qux']"}
}
}
def test_diff_dict(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo:\n bar: baz")
dvc.run(params=["foo"], single_stage=True)
scm.add(["params.yaml", "Dvcfile"])
scm.commit("foo")
tmp_dir.gen("params.yaml", "foo:\n bar: qux")
assert dvc.params.diff() == {
"params.yaml": {"foo.bar": {"old": "baz", "new": "qux"}}
}
def test_diff_with_unchanged(tmp_dir, scm, dvc):
tmp_dir.gen("params.yaml", "foo: bar\nxyz: val")
dvc.run(params=["foo,xyz"], single_stage=True)
scm.add(["params.yaml", "Dvcfile"])
scm.commit("bar")
tmp_dir.scm_gen("params.yaml", "foo: baz\nxyz: val", commit="baz")
tmp_dir.scm_gen("params.yaml", "foo: qux\nxyz: val", commit="qux")
assert dvc.params.diff(a_rev="HEAD~2", all=True) == {
"params.yaml": {
"foo": {"old": "bar", "new": "qux"},
"xyz": {"old": "val", "new": "val"},
}
}
def test_pipeline_tracked_params(tmp_dir, scm, dvc, run_copy):
from dvc.dvcfile import PIPELINE_FILE
tmp_dir.gen({"foo": "foo", "params.yaml": "foo: bar\nxyz: val"})
run_copy("foo", "bar", name="copy-foo-bar", params=["foo,xyz"])
scm.add(["params.yaml", PIPELINE_FILE])
scm.commit("add stage")
tmp_dir.scm_gen("params.yaml", "foo: baz\nxyz: val", commit="baz")
tmp_dir.scm_gen("params.yaml", "foo: qux\nxyz: val", commit="qux")
assert dvc.params.diff(a_rev="HEAD~2") == {
"params.yaml": {"foo": {"old": "bar", "new": "qux"}}
}
def test_no_commits(tmp_dir):
from dvc.repo import Repo
from dvc.scm.git import Git
from tests.dir_helpers import git_init
git_init(".")
assert Git().no_commits
assert Repo.init().params.diff() == {}