mirror of
https://github.com/MacRimi/ProxMenux.git
synced 2026-10-09 06:56:37 +00:00
48 lines
2.4 KiB
Python
48 lines
2.4 KiB
Python
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"""An image is the same in the registry and in the archive made from it,
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whichever format the registry publishes its manifest in."""
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from pathlib import Path
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import sys
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import unittest
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ROOT = Path(__file__).resolve().parents[1]
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sys.path.insert(0, str(ROOT / "remote"))
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from oci_installation_state import same_image
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REGISTRY = "sha256:" + "a" * 64
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ARCHIVE = "sha256:" + "b" * 64
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LAYERS = ["sha256:" + "c" * 64, "sha256:" + "d" * 64]
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BUILT = "2026-09-15T01:13:55.019799592Z"
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class SameImageTests(unittest.TestCase):
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def test_an_oci_manifest_keeps_its_digest(self):
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self.assertTrue(same_image({"manifest_digest": REGISTRY}, {"manifest_digest": REGISTRY}))
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def test_a_docker_manifest_is_recognised_by_its_layers_and_when_it_was_built(self):
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self.assertTrue(same_image({"manifest_digest": REGISTRY, "layers": LAYERS, "created": BUILT},
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{"manifest_digest": ARCHIVE, "layers": list(LAYERS), "created": BUILT}))
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def test_another_image_is_not_the_same(self):
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candidate = {"manifest_digest": REGISTRY, "layers": LAYERS, "created": BUILT}
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self.assertFalse(same_image(candidate, {"manifest_digest": ARCHIVE, "layers": LAYERS[:1], "created": BUILT}))
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self.assertFalse(same_image(candidate, {"manifest_digest": ARCHIVE, "layers": LAYERS[::-1], "created": BUILT}))
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# The same layers rebuilt with another configuration are another image.
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self.assertFalse(same_image(candidate, {"manifest_digest": ARCHIVE, "layers": LAYERS,
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"created": "2026-10-01T00:00:00Z"}))
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def test_what_is_missing_never_matches(self):
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self.assertFalse(same_image({"manifest_digest": REGISTRY}, {"manifest_digest": ARCHIVE}))
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self.assertFalse(same_image({"manifest_digest": REGISTRY, "layers": [], "created": BUILT},
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{"manifest_digest": ARCHIVE, "layers": [], "created": BUILT}))
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self.assertFalse(same_image({"manifest_digest": REGISTRY, "layers": LAYERS, "created": None},
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{"manifest_digest": ARCHIVE, "layers": LAYERS, "created": None}))
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# A record saved before the layers were kept is compared by its digest alone.
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self.assertFalse(same_image({"manifest_digest": REGISTRY, "layers": LAYERS, "created": BUILT},
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{"manifest_digest": ARCHIVE}))
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if __name__ == "__main__":
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unittest.main()
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