41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
import pytest
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from algorithms import Algorithm, get_algorithm
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def test_algorithm_has_required_methods():
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"""Verify Algorithm protocol defines required methods."""
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algo = get_algorithm("pbkdf2")
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assert hasattr(algo, "hash")
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assert hasattr(algo, "verify")
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assert hasattr(algo, "identifier")
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def test_get_algorithm_returns_pbkdf2():
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"""Verify default algorithm is PBKDF2."""
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algo = get_algorithm("pbkdf2")
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assert algo.identifier == "pbkdf2"
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def test_get_algorithm_unknown_raises_error():
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"""Verify unknown algorithm raises ValueError."""
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with pytest.raises(ValueError, match="Unknown algorithm"):
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get_algorithm("unknown")
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def test_pbkdf2_algorithm_hash_round_trip():
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"""Verify PBKDF2 algorithm can hash and verify passwords."""
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algo = get_algorithm("pbkdf2")
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salt, hashed = algo.hash("test password")
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assert algo.verify("test password", salt, hashed)
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assert not algo.verify("wrong password", salt, hashed)
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def test_pbkdf2_algorithm_respects_iterations():
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"""Verify PBKDF2 algorithm respects custom iterations."""
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algo = get_algorithm("pbkdf2")
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salt1, hash1 = algo.hash("test", iterations=100000)
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salt2, hash2 = algo.hash("test", iterations=200000)
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# Different iterations should produce different hashes even with same password
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assert hash1 != hash2
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