refactor multi_server.py and update tests for WebArenaInstanceVars in…

…itialization

src/agentlab/experiments/multi_server.py

@@ -15,9 +15,6 @@ class BaseServer:
     def init(self):
         pass
 
-    def __str__(self):
-        return "BaseServer"
-
 
 @dataclass
 class WebArenaInstanceVars(BaseServer):
@@ -51,6 +48,8 @@ def init(self):
         unimport_modules(self.module_name)
         for key, value in self.make_env_vars().items():
             os.environ[key] = value
+
+        # this is just a dynamic check to see that the env vars are set correctly
         bgym_instance = WebArenaInstance()
         base_url, _ = _split_url(bgym_instance.urls["reddit"])
         assert base_url == self.base_url, f"Expected {self.base_url}, got {base_url}"

tests/experiments/test_multi_server.py

@@ -3,16 +3,28 @@
 
 
 def test_webarena_multiserver():
-    instance = WebArenaInstanceVars.from_env_vars()
-    instance_1 = instance.clone()
-    instance_1.base_url = "http://webarena1.eastus.cloudapp.azure.com"
+
+    instance_1 = WebArenaInstanceVars(
+        base_url="http://webarena1.eastus.cloudapp.azure.com",
+        shopping="8082/",
+        shopping_admin="8083/admin",
+        reddit="8080",
+        gitlab="9001",
+        wikipedia="8081/wikipedia_en_all_maxi_2022-05/A/User:The_other_Kiwix_guy/Landing",
+        map="443",
+        homepage="80",
+        full_reset="7565",
+        module_name="webarena",
+        prefix="WA_",
+    )
+
     instance_1.init()
 
     bgym_instance = WebArenaInstance()
     base_url_1 = bgym_instance.urls["reddit"].rsplit(":", 1)[0]
     assert base_url_1 == instance_1.base_url
 
-    instance_2 = instance.clone()
+    instance_2 = instance_1.clone()
     instance_2.base_url = "http://webarena2.eastus.cloudapp.azure.com"
     instance_2.init()