Update bruteforce test

tests/test-tokenizer-random.py

@@ -235,6 +235,8 @@ def generator_custom_text_edge_cases() -> Iterator[str]:
         'å',               # mpt
         '\U000ac517',      # utf-8 encode error, falcon
         '\U000522f4',      # utf-8 encode error, starcoder
+        "<s><s><unk><s>a<s>b<s>c<unk>d<unk></s>",
+        "<s> <s> <unk><s>a<s>b<s>c<unk>d<unk></s>",
     ]
 
 
@@ -334,7 +336,7 @@ def _valid(cpt):
             return False
         # if cpt == 0x2029:  # deepseek-llm
         #    return False
-        if unicodedata.category(chr(cpt)) in ( "Cn", "Cs", "Co" ):  # undefined, surrogates, private
+        if unicodedata.category(chr(cpt)) in ("Cn", "Cs", "Co"):  # undefined, surrogates, private
             return False
         return True
 
@@ -426,6 +428,7 @@ def check_detokenizer(text: str, text1: str, text2: str) -> bool:
     t_start = time.perf_counter()
     encode_errors = 0
     decode_errors = 0
+    MAX_ERRORS = 10
 
     logger.info("%s: %s" % (generator.__name__, "ini"))
     for text in generator:
@@ -444,23 +447,23 @@ def check_detokenizer(text: str, text1: str, text2: str) -> bool:
         t_encode2 += t2 - t1
         t_decode1 += t3 - t2
         t_decode2 += t4 - t3
-        if ids1 != ids2:
+        if encode_errors < MAX_ERRORS and ids1 != ids2:
             i = find_first_mismatch(ids1, ids2)
             ids1 = list(ids1)[max(0, i - 2) : i + 5 + 1]
             ids2 = list(ids2)[max(0, i - 2) : i + 5 + 1]
             logger.error(" Expected: " + str(ids1))
             logger.error("   Result: " + str(ids2))
             encode_errors += 1
             logger.error(f" {encode_errors=}")
-        if not check_detokenizer(text, text1, text2):
+        if decode_errors < MAX_ERRORS and not check_detokenizer(text, text1, text2):
             i = find_first_mismatch(text1, text2)
             text1 = list(text1[max(0, i - 2) : i + 5 + 1])
             text2 = list(text2[max(0, i - 2) : i + 5 + 1])
             logger.error(" Expected: " + " ".join(hex(ord(x)) for x in text1))
             logger.error("   Result: " + " ".join(hex(ord(x)) for x in text2))
             decode_errors += 1
             logger.error(f" {decode_errors=}")
-        if encode_errors >= 10 or decode_errors >= 10:
+        if encode_errors >= MAX_ERRORS and decode_errors >= MAX_ERRORS:
             logger.error(f" EXIT: {encode_errors=} {decode_errors=}")
             # raise Exception()
             break