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Pin Claude 4.7 sampling-removed regex with backend test (PR #5711)

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Guards against drift between the backend _ANTHROPIC_4_7_SAMPLING_REMOVED
regex and the frontend ANTHROPIC_4_7_SAMPLING_REMOVED_REGEX added in the
previous commit. If a future patch widens one without the other the panel
will either silently strip a knob the user moved or 400 on a knob the UI
should have hidden — both bad UX.

Test pins the canonical 4.7 id shapes (opus/sonnet/haiku) including dated
snapshots, and the non-4.7 ids that must NOT match (4-6, 4-5, 4-71,
future 5, gpt-4o, etc.). Sampling-params suite now 60 passing
(previously 59).
This commit is contained in:
Daniel Han 2026-05-26 05:48:17 +00:00
commit 4f9125a5f9
1 changed files with 37 additions and 0 deletions
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37
studio/backend/tests/test_sampling_params_routing.py
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@ -999,3 +999,40 @@ def test_local_anthropic_passthrough_helpers_accept_parallel_tool_calls():
parallel_tool_calls = False,
)
assert body.get("parallel_tool_calls") is False, body
def test_anthropic_4_7_sampling_removed_regex_matches_expected_ids():
"""Pin the canonical Claude 4.7 model-id shape so the frontend
ANTHROPIC_4_7_SAMPLING_REMOVED_REGEX in
studio/frontend/src/features/chat/provider-capabilities.ts stays
in lockstep with the backend strip in
external_provider._stream_anthropic.
Drift would mean the panel either silently strips a knob the user
moved (UI shows, wire drops) or the wire 400s after the user moved
a knob the UI should have hidden. Both are user-visible bugs.
"""
from core.inference.external_provider import (
_ANTHROPIC_4_7_SAMPLING_REMOVED as RX,
)
should_match = [
"claude-opus-4-7",
"claude-sonnet-4-7",
"claude-haiku-4-7",
"claude-opus-4-7-20260418",
"claude-sonnet-4-7.1",
]
should_not_match = [
"claude-opus-4-6",
"claude-sonnet-4-6",
"claude-haiku-4-5",
"claude-opus-4-71",
"claude-opus-5",
"claude-3-opus",
"gpt-4o",
]
for mid in should_match:
assert RX.match(mid), f"{mid!r} should match 4.7 sampling-removed regex"
for mid in should_not_match:
assert not RX.match(mid), f"{mid!r} should NOT match 4.7 regex"