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fix(tests): update context_compressor tests for min_tail=3

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PR #6240 changed tail protection from protect_last_n to min(3, ...)
which increased the minimum compressible message count and shifted
tail boundaries. Three tests broke:

- test_summary_role_avoids_consecutive_user_messages: 6→8 msgs
- test_double_collision_user_head_assistant_tail: 7→8 msgs
- test_no_collision_scenarios_still_work: 6→8 msgs

All tests now exceed the new min_for_compress threshold (6) and
maintain proper role alternation in both head and tail sections.
This commit is contained in:
BongSuCHOI 2026-04-08 18:25:30 +00:00 • committed by Teknium
parent d12f8db0b8
commit c506126123
1 changed files with 18 additions and 6 deletions
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24
tests/agent/test_context_compressor.py
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@ -324,7 +324,10 @@ class TestCompressWithClient:
with patch("agent.context_compressor.get_model_context_length", return_value=100000):
c = ContextCompressor(model="test", quiet_mode=True, protect_first_n=2, protect_last_n=2)
# Last head message (index 1) is "assistant" → summary should be "user"
# Last head message (index 1) is "assistant" → summary should be "user".
# With min_tail=3, tail = last 3 messages (indices 5-7).
# head_last=assistant, tail_first=assistant → summary_role="user", no collision.
# Need 8 messages: min_for_compress = 2+3+1 = 6, must have > 6.
msgs = [
{"role": "user", "content": "msg 0"},
{"role": "assistant", "content": "msg 1"},
@ -332,6 +335,8 @@ class TestCompressWithClient:
{"role": "assistant", "content": "msg 3"},
{"role": "user", "content": "msg 4"},
{"role": "assistant", "content": "msg 5"},
{"role": "user", "content": "msg 6"},
{"role": "assistant", "content": "msg 7"},
]
with patch("agent.context_compressor.call_llm", return_value=mock_response):
result = c.compress(msgs)
@ -460,8 +465,10 @@ class TestCompressWithClient:
c = ContextCompressor(model="test", quiet_mode=True, protect_first_n=2, protect_last_n=2)
# Head: [system, user] → last head = user
# Tail: [assistant, user] → first tail = assistant
# Tail: [assistant, user, assistant] → first tail = assistant
# summary_role="assistant" collides with tail, "user" collides with head → merge
# With min_tail=3, tail = last 3 messages (indices 5-7).
# Need 8 messages: min_for_compress = 2+3+1 = 6, must have > 6.
msgs = [
{"role": "system", "content": "system prompt"},
{"role": "user", "content": "msg 1"},
@ -470,6 +477,7 @@ class TestCompressWithClient:
{"role": "assistant", "content": "msg 4"}, # compressed
{"role": "assistant", "content": "msg 5"}, # tail start
{"role": "user", "content": "msg 6"},
{"role": "assistant", "content": "msg 7"},
]
with patch("agent.context_compressor.call_llm", return_value=mock_response):
result = c.compress(msgs)
@ -481,7 +489,7 @@ class TestCompressWithClient:
if r1 in ("user", "assistant") and r2 in ("user", "assistant"):
assert r1 != r2, f"consecutive {r1} at indices {i-1},{i}"
# The summary should be merged into the first tail message (assistant)
# The summary should be merged into the first tail message (assistant at index 5)
first_tail = [m for m in result if "msg 5" in (m.get("content") or "")]
assert len(first_tail) == 1
assert "summary text" in first_tail[0]["content"]
@ -496,14 +504,18 @@ class TestCompressWithClient:
with patch("agent.context_compressor.get_model_context_length", return_value=100000):
c = ContextCompressor(model="test", quiet_mode=True, protect_first_n=2, protect_last_n=2)
# Head=assistant, Tail=assistant → summary_role="user", no collision
# Head=assistant, Tail=assistant → summary_role="user", no collision.
# With min_tail=3, tail = last 3 messages (indices 5-7).
# Need 8 messages: min_for_compress = 2+3+1 = 6, must have > 6.
msgs = [
{"role": "user", "content": "msg 0"},
{"role": "assistant", "content": "msg 1"},
{"role": "user", "content": "msg 2"},
{"role": "assistant", "content": "msg 3"},
{"role": "assistant", "content": "msg 4"},
{"role": "user", "content": "msg 5"},
{"role": "user", "content": "msg 4"},
{"role": "assistant", "content": "msg 5"},
{"role": "user", "content": "msg 6"},
{"role": "assistant", "content": "msg 7"},
]
with patch("agent.context_compressor.call_llm", return_value=mock_response):
result = c.compress(msgs)