Files
dvc/tests/unit/utils/test_collections.py
T
Alexander Schepanovski 0c867399bb dvc: retain formatting and comments in .dvc files (#1885)
* test: remove never used copy of load_stage_file()

* dvc: save comments and custom formatting in stage files

* Add a couple of TODOs

* test: test repro doesn't clear comments and formatting in .dvc

As part of this I started writing pytest-like tests and added commonly
used fixtures.

* test: simplify and prettify dvc formatting retained test

Also test that line comments after md5 fields are retained.

* test: fix tests

* dvc: fix stage and metrics opens not closed

* dvc: always use utf-8 in stage files

It used to encode in system default encoding. Not sure if PyYAML was
handling this silently or we were just lucky all the way.

* test: unit test apply_diff()

* test: remove TODOs and ASK

* dvc: polish dvc-formatting PR

* dvc: move stage load/dump utils to a new stage utils file

* dvc: clean up apply_diff()

* test: test stage md5 ignores comments

* test: remove pytests starting marker
2019-04-20 01:12:53 +03:00

50 lines
1.0 KiB
Python

from dvc.utils.collections import apply_diff
class MyDict(dict):
pass
class MyInt(int):
pass
def test_apply_diff_is_inplace():
dest = MyDict()
dest.attr = 42
apply_diff({}, dest)
assert type(dest) is MyDict, "Preserves class"
assert dest.attr == 42, "Preserves custom attrs"
def test_apply_diff_mapping():
src = {"a": 1}
dest = {"b": 2}
apply_diff(src, dest)
assert dest == src, "Adds and removes keys"
src = {"a": 1}
dest = {"a": MyInt(1)}
apply_diff(src, dest)
assert type(dest["a"]) is MyInt, "Does not replace equals"
src = {"d": {"a": 1}}
inner = {}
dest = {"d": inner}
apply_diff(src, dest)
assert dest["d"] is inner, "Updates inner dicts"
def test_apply_diff_seq():
src = [1]
dest = [MyInt(1)]
apply_diff(src, dest)
assert type(dest[0]) is MyInt, "Does not replace equals"
src = {"l": [1]}
inner = []
dest = {"l": inner}
apply_diff(src, dest)
assert dest["l"] is inner, "Updates inner lists"