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strix/tests/test_output_store.py
T

61 lines
1.9 KiB
Python

"""Tests for per-tool-output bounding."""
from __future__ import annotations
import re
from strix.tools.output_store import bound_text
def test_small_output_passes_through_unchanged() -> None:
text = "line 1\nline 2\nline 3"
assert bound_text(text, max_lines=100, max_bytes=10_000) == text
def test_line_limit_keeps_head_and_tail() -> None:
text = "\n".join(str(i) for i in range(1000))
bounded = bound_text(text, max_lines=10, max_bytes=1_000_000)
assert bounded.startswith("0\n1\n2\n3\n4")
assert bounded.rstrip().endswith("999")
assert "truncated" in bounded
assert len(bounded.splitlines()) < 30
def test_byte_limit_enforced_on_single_long_line() -> None:
text = "x" * 100_000
bounded = bound_text(text, max_lines=2_000, max_bytes=1_000)
assert "truncated" in bounded
assert len(bounded.encode("utf-8")) <= 1_000
def test_multibyte_characters_not_split() -> None:
text = "😀" * 50_000
bounded = bound_text(text, max_lines=2_000, max_bytes=1_000)
# Must remain valid UTF-8 (no mid-character cut).
assert bounded == bounded.encode("utf-8").decode("utf-8")
assert "truncated" in bounded
def test_notice_reports_dropped_counts() -> None:
text = "\n".join("y" * 10 for _ in range(500))
bounded = bound_text(text, max_lines=10, max_bytes=1_000_000)
assert "lines" in bounded
assert "bytes" in bounded
def test_dropped_line_count_accounts_for_byte_trimming() -> None:
# Tight byte budget drops whole lines from head/tail; the notice must count them.
text = "\n".join(f"line-{i}" for i in range(200))
bounded = bound_text(text, max_lines=20, max_bytes=40)
match = re.search(r"\[\.\.\. (\d+) lines", bounded)
assert match is not None, bounded
dropped = int(match.group(1))
kept = [ln for ln in bounded.splitlines() if ln and "truncated" not in ln]
assert dropped == 200 - len(kept)
assert dropped > 200 - 20