34c9184065
Regex/stdlib passes (dedupe, alias, ANSI/timestamp/blob strip, JSON minify, caveman word-drop) measured at 8.9-12.2x on real logs with o200k counts. Optional LLMLingua-2 wrap. grunts.py mines Claude Code transcripts for retyped prompts -> slash-command stubs. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
92 lines
3.8 KiB
Python
92 lines
3.8 KiB
Python
import subprocess
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import sys
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from lessismore import (compress, count_tokens, dedupe_lines, squash_blobs,
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strip_filler, strip_timestamps, two_sticks)
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def test():
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# dedupe: long-line runs collapse, short runs where the marker wouldn't pay stay
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line = "ERROR connection refused by upstream database"
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assert dedupe_lines((line + "\n") * 5 + "b") == \
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line + "\n[previous line repeated 4 more times]\nb"
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assert dedupe_lines("a\n" * 5 + "b") == "a\n" * 5 + "b"
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assert dedupe_lines(line + "\n" + line + "\nb") == line + "\n" + line + "\nb"
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# blobs squash with head+tail stub; URLs are not blobs
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assert "[+84 chars]" in squash_blobs("token=" + "A" * 100)
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url = ("GET https://api.dealgod.pro/api/v1/users/12345/orders/67890/"
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"items/status/pending/verbose HTTP/1.1")
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assert squash_blobs(url) == url
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# distinct blobs keep distinct stubs — no false "repeated" merge at level 2
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blobs = "\n".join("stored blob deadbeefcafe" + f"{i:052x}" for i in range(4))
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assert "repeated" not in compress(blobs, 2)
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# timestamps
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assert strip_timestamps("2026-07-07T10:00:00.123Z boom") == "boom"
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# filler stripping never inverts negation
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assert strip_filler("This is not just a warning.") == "This is not just a warning."
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assert strip_filler("just do it") == "do it"
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# level 1 is code-safe: indentation and content untouched
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code = "def f(x):\n return x + 1\n"
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assert compress(code, 1) == code
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# two_sticks drops function words, never negations, and spares acronyms
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assert two_sticks("The server is down") == "server down"
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assert "not" in two_sticks("do not delete the backup")
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assert two_sticks("The IT team said it is a US issue") == "IT team said US issue"
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# interleaved repeats defeat consecutive dedupe but get dictionary-aliased
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inter = ("db connection refused on host alpha-primary\n"
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"redis queue depth exceeded on host beta-cache\n") * 30
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out = compress(inter, 2)
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assert "[repeated lines aliased:]" in out and "@1" in out
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assert count_tokens(out) < count_tokens(inter) / 2
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# a repetitive log shrinks hard, and stripping leaves no doubled spaces
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log = "2026-07-07T10:00:01Z ERROR conn refused db=dealgod retry\n" * 500
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out = compress(log, 2)
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assert count_tokens(out) < count_tokens(log) / 50
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assert " " not in out
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# \r progress redraws keep only the final state
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assert compress("downloading 1%\rdownloading 99%\rdone\n", 2) == "done\n"
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# ANSI escapes stripped
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assert compress("\x1b[32mok\x1b[0m\n", 2) == "ok\n"
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# venv path spam squashed, file:line still unique
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tb = 'File "/Users/j/venv/lib/python3.14/site-packages/httpx/_client.py", line 5\n'
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assert compress(tb, 2) == 'File "…/httpx/_client.py", line 5\n'
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# uuids shorten to 8-hex prefix
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assert compress("id=550e8400-e29b-41d4-a716-446655440000 done\n", 2) == "id=550e8400… done\n"
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# same-words-different-numbers runs collapse, endpoints kept
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sim = "\n".join(f"Downloading chunk {i} of 50 at {i * 3}kbps" for i in range(50))
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out = compress(sim, 2)
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assert "[48 similar lines omitted]" in out
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assert "chunk 0 of" in out and "chunk 49 of" in out
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# whole-input pretty JSON minifies losslessly
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import json
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pretty = json.dumps({"items": [{"id": i, "name": f"x{i}"} for i in range(10)]}, indent=2)
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out = compress(pretty, 2)
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assert json.loads(out) == json.loads(pretty)
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assert len(out) < len(pretty) / 1.5
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# CLI survives empty and non-UTF-8 stdin
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for stdin in (b"", b"ok\n\xff\xfe\n"):
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r = subprocess.run([sys.executable, "lessismore.py"],
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input=stdin, capture_output=True)
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assert r.returncode == 0, r.stderr
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print("ok")
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if __name__ == "__main__":
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test()
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