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87 lines
2.2 KiB
Python
87 lines
2.2 KiB
Python
import boto3
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from moto import mock_s3
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from functools import wraps
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import moto.s3.models as s3model
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from dvc.remote.s3 import RemoteS3
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from tests.func.test_data_cloud import get_aws_url
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# from https://github.com/spulec/moto/blob/v1.3.5/tests/test_s3/test_s3.py#L40
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REDUCED_PART_SIZE = 256
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def reduced_min_part_size(f):
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""" speed up tests by temporarily making the multipart minimum part size
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small
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"""
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orig_size = s3model.UPLOAD_PART_MIN_SIZE
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@wraps(f)
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def wrapped(*args, **kwargs):
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try:
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s3model.UPLOAD_PART_MIN_SIZE = REDUCED_PART_SIZE
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return f(*args, **kwargs)
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finally:
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s3model.UPLOAD_PART_MIN_SIZE = orig_size
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return wrapped
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def _get_src_dst():
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base_info = RemoteS3.path_cls(get_aws_url())
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return base_info / "from", base_info / "to"
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@mock_s3
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def test_copy_singlepart_preserve_etag():
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from_info, to_info = _get_src_dst()
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s3 = boto3.client("s3")
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s3.create_bucket(Bucket=from_info.bucket)
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s3.put_object(Bucket=from_info.bucket, Key=from_info.path, Body="data")
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RemoteS3._copy(s3, from_info, to_info, {})
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def _upload_multipart(s3, Bucket, Key):
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mpu = s3.create_multipart_upload(Bucket=Bucket, Key=Key)
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mpu_id = mpu["UploadId"]
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parts = []
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n_parts = 10
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for i in range(1, n_parts + 1):
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# NOTE: Generation parts of variable size. Part size should be at
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# least 5MB:
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# https://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadComplete.html
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part_size = REDUCED_PART_SIZE + i
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body = b"1" * part_size
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part = s3.upload_part(
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Bucket=Bucket,
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Key=Key,
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PartNumber=i,
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UploadId=mpu_id,
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Body=body,
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ContentLength=len(body),
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)
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parts.append({"PartNumber": i, "ETag": part["ETag"]})
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s3.complete_multipart_upload(
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Bucket=Bucket,
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Key=Key,
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UploadId=mpu_id,
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MultipartUpload={"Parts": parts},
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)
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@mock_s3
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@reduced_min_part_size
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def test_copy_multipart_preserve_etag():
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from_info, to_info = _get_src_dst()
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s3 = boto3.client("s3")
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s3.create_bucket(Bucket=from_info.bucket)
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_upload_multipart(s3, from_info.bucket, from_info.path)
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RemoteS3._copy(s3, from_info, to_info, {})
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