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test_version_conflicts.py
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test_version_conflicts.py
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"""Tests for the version conflict resolution logic."""
from __future__ import annotations
import pytest
from unidep._conflicts import (
VersionConflictError,
_combine_pinning_within_platform,
_is_redundant,
_is_valid_pinning,
_parse_pinning,
combine_version_pinnings,
)
from unidep.platform_definitions import Meta
def test_combining_versions() -> None:
data = {
None: {
"conda": [
Meta(name="numpy", which="conda", pin=">1"),
Meta(name="numpy", which="conda", pin="<2"),
],
},
}
resolved = _combine_pinning_within_platform(data) # type: ignore[arg-type]
assert resolved == {
None: {
"conda": Meta(name="numpy", which="conda", pin=">1,<2"),
},
}
@pytest.mark.parametrize("operator", ["<", "<=", ">", ">=", "="])
@pytest.mark.parametrize("version", ["1", "1.0", "1.0.0", "1.0.0rc1"])
def test_is_valid_pinning(operator: str, version: str) -> None:
assert _is_valid_pinning(f"{operator}{version}")
@pytest.mark.parametrize(
("pinnings", "expected"),
[
([" > 0.0.1", " < 2", " = 1.0.0"], "=1.0.0"),
(["<2", ">1"], "<2,>1"),
([">1", "<2"], ">1,<2"),
(["<3", "<=3", "<4"], "<3"),
(["=1", "=1"], "=1"),
(["=2", "<3", "<=3", "<4"], "=2"),
(["=2", ">1", "<3"], "=2"),
(["=3", ">=2", "<=4"], "=3"),
(["=3", ">1", "<4"], "=3"),
(["=3", ">2", "<4"], "=3"),
([">=1", "<=1"], ">=1,<=1"),
([">=1", ">=1", "=1"], "=1"),
([">=1", ">0", "<=3", "<4"], ">=1,<=3"),
([">=2", "<=2"], ">=2,<=2"),
([">=2", "<3"], ">=2,<3"),
([">0.0.1", "<2", "=1.0.0"], "=1.0.0"),
([">1", "<=3", "<4"], ">1,<=3"),
([">1", "<=3"], ">1,<=3"),
([">1", ">=1", "<3", "<=3", ""], ">1,<3"),
([">1"], ">1"),
([], ""),
],
)
def test_combine_version_pinnings(pinnings: list[str], expected: str) -> None:
assert combine_version_pinnings(pinnings) == expected
# Try reversing the order of the pinnings
if "," not in expected:
assert combine_version_pinnings(pinnings[::-1]) == expected
else:
parts = expected.split(",")
assert combine_version_pinnings(pinnings[::-1]) == ",".join(parts[::-1])
@pytest.mark.parametrize(
"pinnings",
[
["abc", "def"],
["==abc"],
["<=>abc"],
[">1", "abc", "<=3", ""],
["abc", ">=1", "<=2"],
["3"],
[">"],
],
)
def test_invalid_pinnings(pinnings: list[str]) -> None:
with pytest.raises(VersionConflictError, match="Invalid version pinning:"):
assert combine_version_pinnings(pinnings)
@pytest.mark.parametrize(
"pinnings",
[[">2", "<1"], ["<1", ">2"], [">1", "<1"], ["<=1", ">1"], [">1", "<=1"]],
)
def test_contradictory_pinnings(pinnings: list[str]) -> None:
p1, p2 = pinnings
with pytest.raises(
VersionConflictError,
match=f"Contradictory version pinnings found for `None`: {p1} and {p2}",
):
combine_version_pinnings(pinnings)
def test_exact_pinning_with_contradictory_ranges() -> None:
with pytest.raises(
VersionConflictError,
match="Contradictory version pinnings found for `None`: =3 and <2",
):
combine_version_pinnings(["=3", "<2", ">4"])
with pytest.raises(
VersionConflictError,
match="Contradictory version pinnings found for `None`: =3 and <1",
):
assert combine_version_pinnings(["=3", "<1", ">4"])
def test_multiple_exact_pinnings() -> None:
with pytest.raises(
VersionConflictError,
match="Multiple exact version pinnings found: =2, =3",
):
combine_version_pinnings(["=2", "=3"])
def test_general_contradictory_pinnings() -> None:
# This test ensures that contradictory non-exact pinnings raise a VersionConflictError
with pytest.raises(
VersionConflictError,
match="Contradictory version pinnings found for `None`: >=2 and <1",
):
combine_version_pinnings([">=2", "<1"])
def test_is_redundant() -> None:
assert _is_redundant(">2", [">5"])
assert not _is_redundant(">5", [">2"])
assert _is_redundant("<5", ["<2"])
assert _is_redundant(">=2", [">2"])
assert not _is_redundant(">2", [">=2"])
@pytest.mark.parametrize("pinning", ["<<1", ">>1", "=<1", "=>1"])
def test_invalid_parse_pinning(pinning: str) -> None:
with pytest.raises(
VersionConflictError,
match=f"Invalid version pinning: '{pinning}'",
):
_parse_pinning(pinning)