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tests: o200k tokenizer coverage, no model download

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tests/tok_o200k_tiny.json is a synthetic byte-level BPE (274 vocab, a
few KB) whose Split regex is the o200k pattern; expected ids in
tok_o200k_cases.txt were generated by HF tokenizers on that same file.
test_tok_o200k (in TEST_BINS) scores 40/40 encode + 40/40 round-trip:
case-transition splits, contractions, digit groups, the [\r\n/]* tail,
whitespace branches, CJK/Greek/Cyrillic, added-token atomicity.

The cl100k path is untouched by construction — dispatch requires
\p{Lu} in the tokenizer's own Split pattern, which cl100k lacks — and
stays covered by the GLM oracle (verified on this branch: 32/32).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Nicholas Beerbower
2026-07-16 15:17:21 -04:00
parent 364b9741e2
commit 9e2d41567c
4 changed files with 106 additions and 1 deletions
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c/Makefile
+4 -1
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@@ -166,7 +166,7 @@ else
PYTHON ?= python3
endif
CUDA_OBJ =
TEST_BINS = tests/test_json$(EXE) tests/test_st$(EXE) tests/test_tier$(EXE) tests/test_grammar$(EXE) tests/test_schema_gbnf$(EXE) tests/test_decode_batch$(EXE) tests/test_idot$(EXE) tests/test_i4_grouped$(EXE) tests/test_stops$(EXE) tests/test_kv_alloc$(EXE) tests/test_i4_acc512$(EXE) tests/test_compat_direct$(EXE)
TEST_BINS = tests/test_json$(EXE) tests/test_st$(EXE) tests/test_tier$(EXE) tests/test_grammar$(EXE) tests/test_schema_gbnf$(EXE) tests/test_decode_batch$(EXE) tests/test_idot$(EXE) tests/test_i4_grouped$(EXE) tests/test_stops$(EXE) tests/test_tok_o200k$(EXE) tests/test_kv_alloc$(EXE) tests/test_i4_acc512$(EXE) tests/test_compat_direct$(EXE)
ifneq (,$(LINUX))
TEST_BINS += tests/test_uring$(EXE)
endif
@@ -293,6 +293,9 @@ iobench$(EXE): iobench.c compat.h
tests/test_json$(EXE): tests/test_json.c json.h
$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
tests/test_tok_o200k$(EXE): tests/test_tok_o200k.c tok.h tok_unicode.h tok_unicode_o200k.h json.h
$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
tests/test_st$(EXE): tests/test_st.c st.h json.h compat.h
$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)