* fix: match model name to the longest known key, not the first substring * test: model key matching prefers the longest specific key
49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
"""Pin matchModelKey (static/js/model/matchKey.js).
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Driven through `node --input-type=module` (same approach as test_compare_js.py);
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skips when `node` is not installed.
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Regression: model name -> info/pricing lookups returned the FIRST substring
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match, so "gpt-4o-mini" matched the shorter "gpt-4o" key and was billed at
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gpt-4o rates (~16x) with the wrong context window.
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"""
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import json
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import shutil
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import subprocess
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from pathlib import Path
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import pytest
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_REPO = Path(__file__).resolve().parent.parent
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_HELPER = _REPO / "static" / "js" / "model" / "matchKey.js"
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_HAS_NODE = shutil.which("node") is not None
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_KEYS = ["gpt-4o", "gpt-4o-mini", "gpt-4", "o1", "o1-mini", "o1-pro", "o3", "o3-mini"]
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def _match(name):
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js = (
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f"import {{ matchModelKey }} from '{_HELPER.as_posix()}';"
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f"console.log(JSON.stringify(matchModelKey({json.dumps(name)}, {json.dumps(_KEYS)})));"
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)
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proc = subprocess.run(
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["node", "--input-type=module"],
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input=js, capture_output=True, text=True, cwd=str(_REPO), timeout=30,
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)
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assert proc.returncode == 0, proc.stderr
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return json.loads(proc.stdout.strip())
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@pytest.mark.skipif(not _HAS_NODE, reason="node binary not on PATH")
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def test_prefers_longest_specific_key():
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assert _match("gpt-4o-mini") == "gpt-4o-mini"
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assert _match("o1-mini") == "o1-mini"
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assert _match("o1-pro") == "o1-pro"
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assert _match("o3-mini") == "o3-mini"
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@pytest.mark.skipif(not _HAS_NODE, reason="node binary not on PATH")
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def test_base_model_and_unknown():
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assert _match("gpt-4o-2024-08-06") == "gpt-4o"
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assert _match("some-unknown-model") is None
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