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fix(storage): blob metadata to None regression #10108

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fix(storage): blob metadata to None regression #10108

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fix(storage): blob metadata to None regression
Jan 13, 2020
9cefd0a
Fix Blob.metadata() docs.
Jan 14, 2020
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5 changes: 3 additions & 2 deletions storage/google/cloud/storage/blob.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1908,9 +1908,10 @@ def metadata(self, value):
See https://cloud.google.com/storage/docs/json_api/v1/objects

:type value: dict
:param value: (Optional) The blob metadata to set.
:param value: The blob metadata to set.
"""
value = {k: str(v) for k, v in value.items()}
if value is not None:
value = {k: str(v) for k, v in value.items()}
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@IlyaFaer IlyaFaer Jan 13, 2020 •
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value has tag Optional, so it really looks like a regression
Do we need to do the same thing for bucket labels? I don't see Optional tag for them. Still, stringifying was added for them

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@frankyn frankyn Jan 13, 2020

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I think the documentation is incorrect. The code is correct in that the property metadata is optional but should not be optional when setting this value.

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@IlyaFaer IlyaFaer Jan 14, 2020 •
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Okay, I've deleted Optional tag. As I see, it was added by some kind of a script

self._patch_property("metadata", value)

@property
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10 changes: 10 additions & 0 deletions storage/tests/unit/test_blob.py
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Expand Up @@ -1198,6 +1198,16 @@ def test__get_writable_metadata_unwritable_field(self):
expected = {"name": name}
self.assertEqual(object_metadata, expected)

def test__set_metadata_to_none(self):
name = u"blob-name"
blob = self._make_one(name, bucket=None)
blob.storage_class = "NEARLINE"
blob.cache_control = "max-age=3600"

with mock.patch("google.cloud.storage.blob.Blob._patch_property") as patch_prop:
blob.metadata = None
patch_prop.assert_called_once_with("metadata", None)

def test__get_upload_arguments(self):
name = u"blob-name"
key = b"[pXw@,p@@AfBfrR3x-2b2SCHR,.?YwRO"
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