diff --git a/tests/unit/test_environments.py b/tests/unit/test_environments.py
index e755bfd5..98a46b18 100644
--- a/tests/unit/test_environments.py
+++ b/tests/unit/test_environments.py
@@ -1,40 +1,99 @@
 import unittest
 from unittest import TestCase
 
-from chatarena.config import EnvironmentConfig
-from chatarena.environments import PettingzooTicTacToe, load_environment, register_env
+from chatarena.config import AgentConfig, BackendConfig, EnvironmentConfig
+from chatarena.environments import (
+    Chameleon,
+    Environment,
+    ModeratedConversation,
+    PettingzooChess,
+    PettingzooTicTacToe,
+    load_environment,
+    register_env,
+)
 
 
 class TestEnvironments(TestCase):
     def test_env_registration(self):
         @register_env
-        class TestEnv:
+        class TestEnv(Environment):
             type_name = "test"
 
             @classmethod
             def from_config(cls, config: EnvironmentConfig):
-                return cls()
+                return cls(player_names=config.player_names)
 
-        env_config = EnvironmentConfig(env_type="test")
+        env_config = EnvironmentConfig(
+            env_type="test", player_names=["player1", "player2"]
+        )
         env = load_environment(env_config)
         assert isinstance(env, TestEnv)
 
-    def test_chess_environment(self):
-        player_names = ["player1", "player2"]
-        env = PettingzooTicTacToe(player_names)
 
+class TestTicTacToeEnvironment(TestCase):
+    def config(self):
+        return EnvironmentConfig(
+            env_type="pettingzoo:tictactoe", player_names=["player1", "player2"]
+        )
+
+    def test_registration_and_loading(self):
+        env = load_environment(self.config())
+        assert isinstance(env, PettingzooTicTacToe)
+
+    def test_game(self):
+        env = load_environment(self.config())
         env.reset()
         assert env.get_next_player() == "player1"
-        env.print()
 
         moves = ["X: (3, 1)", "O: (2, 2)", "X: (1, 2)", "O: (1, 1)"]
 
         for i, move in enumerate(moves):
             assert env.check_action(move, env.get_next_player())
-            timestep = env.step(env.get_next_player(), move)
-            print(timestep.reward)
-            print(timestep.terminal)
-            env.print()
+            env.step(env.get_next_player(), move)
+            assert not env.is_terminal()
+
+
+class TestChameleonEnvironment(TestCase):
+    def test_registration_and_loading(self):
+        config = EnvironmentConfig(
+            env_type="chameleon", player_names=["player1", "player2"]
+        )
+        env = load_environment(config)
+        assert isinstance(env, Chameleon)
+
+
+class TestConversationEnvironment(TestCase):
+    def test_registration_and_loading(self):
+        config = EnvironmentConfig(
+            env_type="conversation", player_names=["player1", "player2"]
+        )
+        env = load_environment(config)
+        assert isinstance(env, Environment)
+
+
+class TestModeratedConversationEnvironment(TestCase):
+    def test_registration_and_loading(self):
+        moderator = AgentConfig(
+            role_desc="moderator",
+            backend=BackendConfig(backend_type="human"),
+            terminal_condition="all_done",
+        )
+        config = EnvironmentConfig(
+            env_type="moderated_conversation",
+            player_names=["player1", "player2"],
+            moderator=moderator,
+        )
+        env = load_environment(config)
+        assert isinstance(env, ModeratedConversation)
+
+
+class TestPettingzooChessEnvironment(TestCase):
+    def test_registration_and_loading(self):
+        config = EnvironmentConfig(
+            env_type="pettingzoo:chess", player_names=["player1", "player2"]
+        )
+        env = load_environment(config)
+        assert isinstance(env, PettingzooChess)
 
 
 if __name__ == "__main__":