refactor: move all testing to top-level of repo

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

tests/local_testing/test_proxy_encrypt_decrypt.py

@@ -0,0 +1,45 @@
+import os
+import sys
+
+import pytest
+from dotenv import load_dotenv
+
+load_dotenv()
+import io
+import os
+
+sys.path.insert(
+    0, os.path.abspath("../..")
+)  # Adds-the parent directory to the system path
+
+from litellm.proxy import proxy_server
+from litellm.proxy.common_utils.encrypt_decrypt_utils import (
+    decrypt_value_helper,
+    encrypt_value_helper,
+)
+
+
+def test_encrypt_decrypt_with_master_key():
+    setattr(proxy_server, "master_key", "sk-1234")
+    assert decrypt_value_helper(encrypt_value_helper("test")) == "test"
+    assert decrypt_value_helper(encrypt_value_helper(10)) == 10
+    assert decrypt_value_helper(encrypt_value_helper(True)) is True
+    assert decrypt_value_helper(encrypt_value_helper(None)) is None
+    assert decrypt_value_helper(encrypt_value_helper({"rpm": 10})) == {"rpm": 10}
+
+    # encryption should actually occur for strings
+    assert encrypt_value_helper("test") != "test"
+
+
+def test_encrypt_decrypt_with_salt_key():
+    os.environ["LITELLM_SALT_KEY"] = "sk-salt-key2222"
+    assert decrypt_value_helper(encrypt_value_helper("test")) == "test"
+    assert decrypt_value_helper(encrypt_value_helper(10)) == 10
+    assert decrypt_value_helper(encrypt_value_helper(True)) is True
+    assert decrypt_value_helper(encrypt_value_helper(None)) is None
+    assert decrypt_value_helper(encrypt_value_helper({"rpm": 10})) == {"rpm": 10}
+
+    # encryption should actually occur for strings
+    assert encrypt_value_helper("test") != "test"
+
+    os.environ.pop("LITELLM_SALT_KEY", None)