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test(anthropic): tighten legacy thinking budget regression docstrings

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Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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milan 2026-07-29 21:53:35 +00:00
parent 4e791e4400
commit b3a12c5157
1 changed files with 6 additions and 5 deletions
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11
tests/test_litellm/llms/anthropic/experimental_pass_through/messages/test_anthropic_messages_effort.py
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@ -295,12 +295,13 @@ def test_non_adaptive_request_without_effort_is_untouched():
assert "thinking" not in result
assert "output_config" not in result
def test_legacy_thinking_budget_preserved_for_adaptive_model():
"""Regression: a caller-supplied ``budget_tokens`` is a hard reasoning ceiling that
adaptive thinking cannot express. Rewriting it to ``thinking={type: adaptive}`` plus
an effort bucket removed the ceiling, so a request bounded at 8000 thinking tokens
started reasoning past it and burning the whole max_tokens. 4.6/4.7 accept the legacy
shape, so it must be forwarded unchanged."""
``output_config.effort`` cannot express. Rewriting it to ``thinking={type: adaptive}``
plus an effort bucket removed the ceiling, so a request bounded at 8000 thinking tokens
reasoned past it and burned the whole max_tokens. Sonnet 4.6 accepts the legacy shape,
so it must be forwarded unchanged."""
result = _transform(
"claude-sonnet-4-6",
{"max_tokens": 32768, "thinking": {"type": "enabled", "budget_tokens": 8000}},
@ -312,7 +313,7 @@ def test_legacy_thinking_budget_preserved_for_adaptive_model():
def test_budget_less_legacy_thinking_translated_to_adaptive_for_4_6():
"""``thinking={type: enabled}`` without a budget is not a valid Anthropic request, so
the legacy claude-code shape still has to be translated to the adaptive interface."""
the legacy shape still has to be translated to the adaptive interface."""
result = _transform("claude-sonnet-4-6", {"max_tokens": 32768, "thinking": {"type": "enabled"}})
assert result["thinking"] == {"type": "adaptive"}