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import sys
from copy import copy
import pytest
from virtualenv.discovery.py_spec import PythonSpec
def test_bad_py_spec():
text = "python2.3.4.5"
spec = PythonSpec.from_string_spec(text)
assert text in repr(spec)
assert spec.str_spec == text
assert spec.path == text
content = vars(spec)
del content["str_spec"]
del content["path"]
assert all(v is None for v in content.values())
def test_py_spec_first_digit_only_major():
spec = PythonSpec.from_string_spec("278")
assert spec.major == 2
assert spec.minor == 78
def test_spec_satisfies_path_ok():
spec = PythonSpec.from_string_spec(sys.executable)
assert spec.satisfies(spec) is True
def test_spec_satisfies_path_nok(tmp_path):
spec = PythonSpec.from_string_spec(sys.executable)
of = PythonSpec.from_string_spec(str(tmp_path))
assert spec.satisfies(of) is False
def test_spec_satisfies_arch():
spec_1 = PythonSpec.from_string_spec("python-32")
spec_2 = PythonSpec.from_string_spec("python-64")
assert spec_1.satisfies(spec_1) is True
assert spec_2.satisfies(spec_1) is False
@pytest.mark.parametrize(
("req", "spec"),
[("py", "python"), ("jython", "jython"), ("CPython", "cpython")],
)
def test_spec_satisfies_implementation_ok(req, spec):
spec_1 = PythonSpec.from_string_spec(req)
spec_2 = PythonSpec.from_string_spec(spec)
assert spec_1.satisfies(spec_1) is True
assert spec_2.satisfies(spec_1) is True
def test_spec_satisfies_implementation_nok():
spec_1 = PythonSpec.from_string_spec("cpython")
spec_2 = PythonSpec.from_string_spec("jython")
assert spec_2.satisfies(spec_1) is False
assert spec_1.satisfies(spec_2) is False
def _version_satisfies_pairs():
target = set()
version = tuple(str(i) for i in sys.version_info[0:3])
for i in range(len(version) + 1):
req = ".".join(version[0:i])
for j in range(i + 1):
sat = ".".join(version[0:j])
# can be satisfied in both directions
target.add((req, sat))
target.add((sat, req))
return sorted(target)
@pytest.mark.parametrize(("req", "spec"), _version_satisfies_pairs())
def test_version_satisfies_ok(req, spec):
req_spec = PythonSpec.from_string_spec(f"python{req}")
sat_spec = PythonSpec.from_string_spec(f"python{spec}")
assert sat_spec.satisfies(req_spec) is True
def _version_not_satisfies_pairs():
target = set()
version = tuple(str(i) for i in sys.version_info[0:3])
for major in range(len(version)):
req = ".".join(version[0 : major + 1])
for minor in range(major + 1):
sat_ver = list(sys.version_info[0 : minor + 1])
for patch in range(minor + 1):
for o in [1, -1]:
temp = copy(sat_ver)
temp[patch] += o
if temp[patch] < 0:
continue
sat = ".".join(str(i) for i in temp)
target.add((req, sat))
return sorted(target)
@pytest.mark.parametrize(("req", "spec"), _version_not_satisfies_pairs())
def test_version_satisfies_nok(req, spec):
req_spec = PythonSpec.from_string_spec(f"python{req}")
sat_spec = PythonSpec.from_string_spec(f"python{spec}")
assert sat_spec.satisfies(req_spec) is False
def test_relative_spec(tmp_path, monkeypatch):
monkeypatch.chdir(tmp_path)
a_relative_path = str((tmp_path / "a" / "b").relative_to(tmp_path))
spec = PythonSpec.from_string_spec(a_relative_path)
assert spec.path == a_relative_path
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