George Weale
b1c984baa2
Co-authored-by: George Weale <gweale@google.com> PiperOrigin-RevId: 970091291
78 lines
2.6 KiB
Python
78 lines
2.6 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests for the ContextCacheConfig reading shared by prefix-marking models."""
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from google.adk.agents.context_cache_config import ContextCacheConfig
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from google.adk.models._prompt_cache import resolve_cache_config
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from google.adk.models._prompt_cache import use_one_hour_ttl
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from google.adk.models.llm_request import LlmRequest
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import pytest
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def _request(cache_config=None, previous_prompt_tokens=None):
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return LlmRequest(
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model="test-model",
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cache_config=cache_config,
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cacheable_contents_token_count=previous_prompt_tokens,
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)
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def test_no_cache_config_resolves_to_none():
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assert resolve_cache_config(_request()) is None
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def test_no_cache_config_resolves_to_none_with_a_known_prompt_size():
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"""The size is read only after a config is known to exist."""
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assert resolve_cache_config(_request(previous_prompt_tokens=10_000)) is None
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def test_cache_config_resolves_before_the_first_prompt_size_is_known():
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cache_config = ContextCacheConfig(min_tokens=5000)
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assert resolve_cache_config(_request(cache_config)) is cache_config
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@pytest.mark.parametrize(
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"previous_prompt_tokens,expected",
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[(0, None), (4999, None), (5000, "config"), (5001, "config")],
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)
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def test_min_tokens_gates_on_the_previous_prompt_size(
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previous_prompt_tokens, expected
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):
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cache_config = ContextCacheConfig(min_tokens=5000)
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resolved = resolve_cache_config(
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_request(cache_config, previous_prompt_tokens)
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)
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assert resolved is (cache_config if expected else None)
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def test_a_prompt_size_of_zero_is_a_size_not_an_absent_one():
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"""Zero is below any positive minimum, and is not "not measured yet"."""
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cache_config = ContextCacheConfig(min_tokens=1)
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assert resolve_cache_config(_request(cache_config, 0)) is None
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@pytest.mark.parametrize(
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"ttl_seconds,expected",
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[(1, False), (300, False), (3599, False), (3600, True), (86400, True)],
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)
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def test_only_an_hour_or_more_asks_for_the_long_cache(ttl_seconds, expected):
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assert (
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use_one_hour_ttl(ContextCacheConfig(ttl_seconds=ttl_seconds)) is expected
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)
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