refactor: move all testing to top-level of repo

Closes https://github.com/BerriAI/litellm/issues/486

litellm/tests/test_model_alias_map.py

@@ -1,45 +0,0 @@
-#### What this tests ####
-#    This tests the model alias mapping - if user passes in an alias, and has set an alias, set it to the actual value
-
-import os
-import sys
-import traceback
-
-sys.path.insert(
-    0, os.path.abspath("../..")
-)  # Adds the parent directory to the system path
-import pytest
-
-import litellm
-from litellm import completion, embedding
-
-litellm.set_verbose = True
-
-model_alias_map = {"good-model": "groq/llama3-8b-8192"}
-
-
-def test_model_alias_map(caplog):
-    try:
-        litellm.model_alias_map = model_alias_map
-        response = completion(
-            "good-model",
-            messages=[{"role": "user", "content": "Hey, how's it going?"}],
-            top_p=0.1,
-            temperature=0.01,
-            max_tokens=10,
-        )
-        print(response.model)
-
-        captured_logs = [rec.levelname for rec in caplog.records]
-
-        for log in captured_logs:
-            assert "ERROR" not in log
-
-        assert "groq/llama3-8b-8192" in response.model
-    except litellm.ServiceUnavailableError:
-        pass
-    except Exception as e:
-        pytest.fail(f"Error occurred: {e}")
-
-
-# test_model_alias_map()