Files
dvc/tests/unit/dependency/test_params.py
T
Casper da Costa-Luis 2bb7257a06 lint: isort pre-commit & misc improvements (#3749)
* test: clean flake8 config root clutter

* test: pre-commit: add isort

Compatible with black (see https://github.com/timothycrosley/isort/issues/694)

* lint: reorder imports

* lint: more complex imports

* lint: fix deepsource

* config: isort: add first party dvc

* tests: restyled: add isort

* temp commit to revert before merge

* Revert "temp commit to revert before merge"

This reverts commit 11db0fd8e95fe891597cbb9bf804480909b19e24.
2020-05-06 23:56:07 +03:00

89 lines
2.5 KiB
Python

import pytest
import yaml
from dvc.dependency import ParamsDependency, loadd_from, loads_params
from dvc.dependency.param import BadParamFileError, MissingParamsError
from dvc.stage import Stage
PARAMS = {
"foo": 1,
"bar": 53.135,
"baz": "str",
"qux": None,
}
def test_loads_params(dvc):
stage = Stage(dvc)
deps = loads_params(stage, ["foo", "bar,baz", "a_file:qux"])
assert len(deps) == 2
assert isinstance(deps[0], ParamsDependency)
assert deps[0].def_path == ParamsDependency.DEFAULT_PARAMS_FILE
assert deps[0].params == ["foo", "bar", "baz"]
assert deps[0].info == {}
assert isinstance(deps[1], ParamsDependency)
assert deps[1].def_path == "a_file"
assert deps[1].params == ["qux"]
assert deps[1].info == {}
def test_loadd_from(dvc):
stage = Stage(dvc)
deps = loadd_from(stage, [{"params": PARAMS}])
assert len(deps) == 1
assert isinstance(deps[0], ParamsDependency)
assert deps[0].def_path == ParamsDependency.DEFAULT_PARAMS_FILE
assert deps[0].params == list(PARAMS.keys())
assert deps[0].info == PARAMS
def test_dumpd_with_info(dvc):
dep = ParamsDependency(Stage(dvc), None, PARAMS)
assert dep.dumpd() == {
"path": "params.yaml",
"params": PARAMS,
}
def test_dumpd_without_info(dvc):
dep = ParamsDependency(Stage(dvc), None, list(PARAMS.keys()))
assert dep.dumpd() == {
"path": "params.yaml",
"params": list(PARAMS.keys()),
}
def test_read_params_nonexistent_file(dvc):
dep = ParamsDependency(Stage(dvc), None, ["foo"])
assert dep.read_params() == {}
def test_read_params_unsupported_format(tmp_dir, dvc):
tmp_dir.gen("params.yaml", b"\0\1\2\3\4\5\6\7")
dep = ParamsDependency(Stage(dvc), None, ["foo"])
with pytest.raises(BadParamFileError):
dep.read_params()
def test_read_params_nested(tmp_dir, dvc):
tmp_dir.gen(
"params.yaml", yaml.dump({"some": {"path": {"foo": ["val1", "val2"]}}})
)
dep = ParamsDependency(Stage(dvc), None, ["some.path.foo"])
assert dep.read_params() == {"some.path.foo": ["val1", "val2"]}
def test_save_info_missing_config(dvc):
dep = ParamsDependency(Stage(dvc), None, ["foo"])
with pytest.raises(MissingParamsError):
dep.save_info()
def test_save_info_missing_param(tmp_dir, dvc):
tmp_dir.gen("params.yaml", "bar: baz")
dep = ParamsDependency(Stage(dvc), None, ["foo"])
with pytest.raises(MissingParamsError):
dep.save_info()