def parse_reference_expression(expression):
try:
return package_constraint_to_reference(PackageConstraint.parse(expression))
except ValueError:
# if we failed to parse the expression as constraint expression
# we will try to parse it as reference
return PackageReference.parse(expression)
def test_reference():
package_constraint = PackageReference.parse(
'swss@sha256:9780f6d83e45878749497a6297ed9906c19ee0cc48cc88dc63827564bb8768fd'
)
assert package_constraint.name == 'swss'
assert package_constraint.reference == 'sha256:9780f6d83e45878749497a6297ed9906c19ee0cc48cc88dc63827564bb8768fd'
def test_reference_invalid():
with pytest.raises(ValueError):
PackageReference.parse('swssfdsf')
