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https://github.com/azaion/detections.git
synced 2026-04-22 22:26:33 +00:00
Oleksandr Bezdieniezhnykh
47 lines
1.1 KiB
Python
47 lines
1.1 KiB
Python
import xxhash
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def test_compute_media_content_hash_small_file():
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# Arrange
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from media_hash import compute_media_content_hash
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data = b"x" * 100
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expected = xxhash.xxh64(len(data).to_bytes(8, "little") + data).hexdigest()
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# Act
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out = compute_media_content_hash(data)
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# Assert
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assert out == expected
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def test_compute_media_content_hash_large_file():
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# Arrange
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from media_hash import compute_media_content_hash
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data = (bytes(range(256)) * 20)[:5000]
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n = len(data)
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mid = (n - 1024) // 2
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blob = (
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n.to_bytes(8, "little")
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+ data[0:1024]
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+ data[mid : mid + 1024]
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+ data[-1024:]
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)
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expected = xxhash.xxh64(blob).hexdigest()
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# Act
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out = compute_media_content_hash(data)
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# Assert
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assert out == expected
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def test_compute_media_content_hash_virtual_prefix():
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# Arrange
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from media_hash import compute_media_content_hash
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# Act
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v = compute_media_content_hash(b"abc", virtual=True)
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n = compute_media_content_hash(b"abc", virtual=False)
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# Assert
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assert v.startswith("V")
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assert not n.startswith("V")
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assert v == "V" + n
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