fix tokenizer matching and add tests

model/supervised_finetuning/tests/test_utils.py

@@ -1,9 +1,28 @@
 from argparse import Namespace
 
-from utils import get_tokenizer
+import pytest
+from utils import TOKENIZER_CONFIGS, get_tokenizer, match_tokenizer_name
 
 
 def test_tokenizer():
     get_tokenizer(Namespace(model_name="Salesforce/codegen-2B-multi", cache_dir=".cache"))
     get_tokenizer(Namespace(model_name="facebook/galactica-1.3b", cache_dir=".cache"))
     get_tokenizer(Namespace(model_name="", cache_dir=".cache"))
+
+
+def test_tokenizer_successful_match():
+    for config_name, config in TOKENIZER_CONFIGS:
+        found_config = match_tokenizer_name(config_name)
+        assert found_config == config
+
+
+def test_tokenizer_partial_match():
+    for config_name, config in TOKENIZER_CONFIGS:
+        found_config = match_tokenizer_name(config_name[: len(config_name) - 1])
+        assert found_config == config
+
+
+def test_tokenizer_failed_match():
+    for fake_config_name in ["not-a-model", "fake"]:
+        with pytest.raises(ValueError):
+            match_tokenizer_name(fake_config_name)