mirror of
https://github.com/pypa/pip
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20706eb93f
pkg_resources.Distribution classes delegate to the IMetadataProvider implementation provided at construction. This is the one we'll use for adapting a ZipFile to pkg_resources.DistInfoDistribution.
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
from email.message import Message
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import pytest
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from pip._vendor.pkg_resources import DistInfoDistribution, Requirement
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from pip._vendor.six import ensure_binary
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from pip._internal.utils.packaging import get_metadata, get_requires_python
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from pip._internal.utils.pkg_resources import DictMetadata
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from tests.lib import skip_if_python2
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def test_dict_metadata_works():
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name = "simple"
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version = "0.1.0"
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require_a = "a==1.0"
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require_b = "b==1.1; extra == 'also_b'"
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requires = [require_a, require_b, "c==1.2; extra == 'also_c'"]
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extras = ["also_b", "also_c"]
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requires_python = ">=3"
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metadata = Message()
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metadata["Name"] = name
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metadata["Version"] = version
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for require in requires:
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metadata["Requires-Dist"] = require
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for extra in extras:
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metadata["Provides-Extra"] = extra
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metadata["Requires-Python"] = requires_python
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inner_metadata = DictMetadata({
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"METADATA": ensure_binary(metadata.as_string())
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})
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dist = DistInfoDistribution(
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location="<in-memory>", metadata=inner_metadata, project_name=name
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)
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assert name == dist.project_name
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assert version == dist.version
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assert set(extras) == set(dist.extras)
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assert [Requirement.parse(require_a)] == dist.requires([])
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assert [
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Requirement.parse(require_a), Requirement.parse(require_b)
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] == dist.requires(["also_b"])
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assert metadata.as_string() == get_metadata(dist).as_string()
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assert requires_python == get_requires_python(dist)
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# Metadata is not decoded on Python 2, so no chance for error.
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@skip_if_python2
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def test_dict_metadata_throws_on_bad_unicode():
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metadata = DictMetadata({
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"METADATA": b"\xff"
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})
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with pytest.raises(UnicodeDecodeError) as e:
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metadata.get_metadata("METADATA")
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assert "METADATA" in str(e.value)
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