test_public_key_fingerprint.py
python
sha256:51ce277f663e01a43eaffbe77509b1de7ac2d4251b55d23306304bcdeb92c90d
feat(pack): delta-encode snapshots in MPackBundle wire format
Sonnet 4.6
minor
⚠ breaking
122 days ago
| 1 | """Tests for the canonical public_key_fingerprint function. |
| 2 | |
| 3 | All public key fingerprints in Muse must use the sha256: prefix — the same |
| 4 | convention as every other content-addressed value. These tests drive the |
| 5 | single canonical implementation in muse.core.types. |
| 6 | """ |
| 7 | from __future__ import annotations |
| 8 | |
| 9 | import pathlib |
| 10 | import pytest |
| 11 | |
| 12 | from muse.core.types import blob_id, split_id |
| 13 | |
| 14 | |
| 15 | class TestPublicKeyFingerprintCanonical: |
| 16 | """The canonical function lives in muse.core.types.""" |
| 17 | |
| 18 | def test_returns_sha256_prefixed_string(self) -> None: |
| 19 | from muse.core.types import public_key_fingerprint |
| 20 | fp = public_key_fingerprint(b"\x00" * 32) |
| 21 | assert fp.startswith("sha256:") |
| 22 | |
| 23 | def test_hex_portion_is_64_chars(self) -> None: |
| 24 | from muse.core.types import public_key_fingerprint |
| 25 | fp = public_key_fingerprint(b"\x00" * 32) |
| 26 | _, hex_part = split_id(fp) |
| 27 | assert len(hex_part) == 64 |
| 28 | |
| 29 | def test_hex_portion_is_lowercase_hex(self) -> None: |
| 30 | from muse.core.types import public_key_fingerprint |
| 31 | fp = public_key_fingerprint(b"\xff" * 32) |
| 32 | _, hex_part = split_id(fp) |
| 33 | assert all(c in "0123456789abcdef" for c in hex_part) |
| 34 | |
| 35 | def test_correct_sha256_of_input(self) -> None: |
| 36 | from muse.core.types import public_key_fingerprint |
| 37 | data = b"test public key bytes" |
| 38 | expected = blob_id(data) |
| 39 | assert public_key_fingerprint(data) == expected |
| 40 | |
| 41 | def test_known_zero_key(self) -> None: |
| 42 | from muse.core.types import public_key_fingerprint |
| 43 | data = b"\x00" * 32 |
| 44 | expected = blob_id(data) |
| 45 | assert public_key_fingerprint(data) == expected |
| 46 | |
| 47 | def test_deterministic(self) -> None: |
| 48 | from muse.core.types import public_key_fingerprint |
| 49 | data = b"deterministic input" |
| 50 | assert public_key_fingerprint(data) == public_key_fingerprint(data) |
| 51 | |
| 52 | def test_different_inputs_produce_different_fingerprints(self) -> None: |
| 53 | from muse.core.types import public_key_fingerprint |
| 54 | assert public_key_fingerprint(b"aaa") != public_key_fingerprint(b"bbb") |
| 55 | |
| 56 | def test_empty_bytes(self) -> None: |
| 57 | from muse.core.types import public_key_fingerprint |
| 58 | fp = public_key_fingerprint(b"") |
| 59 | assert fp == blob_id(b"") |
| 60 | |
| 61 | def test_total_length_is_71(self) -> None: |
| 62 | # "sha256:" (7) + 64 hex chars = 71 |
| 63 | from muse.core.types import public_key_fingerprint |
| 64 | assert len(public_key_fingerprint(b"x" * 32)) == 71 |
| 65 | |
| 66 | |
| 67 | class TestPublicKeyFingerprintKeypairModule: |
| 68 | """keypair.py::public_key_fingerprint must delegate to _types and return prefixed value.""" |
| 69 | |
| 70 | def test_returns_sha256_prefixed_string(self) -> None: |
| 71 | from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey |
| 72 | from muse.core.keypair import public_key_fingerprint |
| 73 | private_key = Ed25519PrivateKey.generate() |
| 74 | public_key = private_key.public_key() |
| 75 | fp = public_key_fingerprint(public_key) |
| 76 | assert fp.startswith("sha256:") |
| 77 | |
| 78 | def test_hex_portion_is_64_chars(self) -> None: |
| 79 | from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey |
| 80 | from muse.core.keypair import public_key_fingerprint |
| 81 | private_key = Ed25519PrivateKey.generate() |
| 82 | fp = public_key_fingerprint(private_key.public_key()) |
| 83 | _, hex_part = split_id(fp) |
| 84 | assert len(hex_part) == 64 |
| 85 | |
| 86 | def test_consistent_with_types_module(self) -> None: |
| 87 | from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey |
| 88 | from cryptography.hazmat.primitives.serialization import Encoding, PublicFormat |
| 89 | from muse.core.types import public_key_fingerprint as canonical_fp |
| 90 | from muse.core.keypair import public_key_fingerprint as keypair_fp |
| 91 | private_key = Ed25519PrivateKey.generate() |
| 92 | public_key = private_key.public_key() |
| 93 | raw = public_key.public_bytes(Encoding.Raw, PublicFormat.Raw) |
| 94 | assert keypair_fp(public_key) == canonical_fp(raw) |
| 95 | |
| 96 | |
| 97 | class TestNoBareFingerprintsAnywhere: |
| 98 | """The old bare-hex implementations must no longer exist.""" |
| 99 | |
| 100 | def test_agent_fingerprint_function_is_gone(self) -> None: |
| 101 | import importlib |
| 102 | import inspect |
| 103 | mod = importlib.import_module("muse.cli.commands.agent") |
| 104 | # _fingerprint should not exist as a standalone function anymore |
| 105 | assert not hasattr(mod, "_fingerprint"), ( |
| 106 | "_fingerprint still exists in agent.py — delete it and route callers " |
| 107 | "through muse.core.types.public_key_fingerprint" |
| 108 | ) |
| 109 | |
| 110 | def test_provenance_fingerprint_function_is_gone(self) -> None: |
| 111 | import importlib |
| 112 | mod = importlib.import_module("muse.core.provenance") |
| 113 | assert not hasattr(mod, "public_key_fingerprint"), ( |
| 114 | "public_key_fingerprint still exists in provenance.py — delete it and " |
| 115 | "route callers through muse.core.types.public_key_fingerprint" |
| 116 | ) |
| 117 | |
| 118 | |
| 119 | class TestFingerprintInIdentityEntry: |
| 120 | """Fingerprints written to identity.toml must carry the sha256: prefix.""" |
| 121 | |
| 122 | def test_derive_hd_public_info_returns_prefixed_fingerprint(self) -> None: |
| 123 | from muse.core.keypair import derive_hd_public_info |
| 124 | seed = b"\x00" * 64 |
| 125 | _, fingerprint = derive_hd_public_info(seed) |
| 126 | assert fingerprint.startswith("sha256:"), ( |
| 127 | f"derive_hd_public_info returned bare fingerprint {fingerprint!r} — " |
| 128 | "must be sha256:-prefixed" |
| 129 | ) |
| 130 | |
| 131 | def test_fingerprint_field_in_identity_entry_is_prefixed(self, tmp_path: pathlib.Path) -> None: |
| 132 | """Round-trip: save an identity, load it back, fingerprint has prefix.""" |
| 133 | from muse.core.identity import save_identity, load_identity |
| 134 | from muse.core.types import public_key_fingerprint |
| 135 | import secrets |
| 136 | |
| 137 | fingerprint = public_key_fingerprint(b"fake-public-key-bytes") |
| 138 | entry = { |
| 139 | "type": "human", |
| 140 | "handle": "gabriel", |
| 141 | "key_path": str(tmp_path / "key.pem"), |
| 142 | "algorithm": "ed25519", |
| 143 | "fingerprint": fingerprint, |
| 144 | } |
| 145 | # Monkeypatch the identity file location |
| 146 | import muse.core.identity as id_mod |
| 147 | orig = id_mod._IDENTITY_FILE |
| 148 | id_mod._IDENTITY_FILE = tmp_path / "identity.toml" |
| 149 | try: |
| 150 | save_identity("localhost:1337", entry) # type: ignore[arg-type] |
| 151 | loaded = load_identity("localhost:1337") |
| 152 | assert loaded is not None |
| 153 | assert loaded.get("fingerprint", "").startswith("sha256:"), ( |
| 154 | f"Loaded fingerprint {loaded.get('fingerprint')!r} lacks sha256: prefix" |
| 155 | ) |
| 156 | finally: |
| 157 | id_mod._IDENTITY_FILE = orig |
File History
1 commit
sha256:51ce277f663e01a43eaffbe77509b1de7ac2d4251b55d23306304bcdeb92c90d
feat(pack): delta-encode snapshots in MPackBundle wire format
Sonnet 4.6
minor
⚠
122 days ago