diff --git a/arangoasync/connection.py b/arangoasync/connection.py
index bf6ef8a..0fdd2bc 100644
--- a/arangoasync/connection.py
+++ b/arangoasync/connection.py
@@ -81,7 +81,6 @@ async def process_request(self, request: Request) -> Response:
             ConnectionAbortedError: If can't connect to host(s) within limit.
         """
 
-        ex_host_index = -1
         host_index = self._host_resolver.get_host_index()
         for tries in range(self._host_resolver.max_tries):
             try:
diff --git a/tests/conftest.py b/tests/conftest.py
index f335bed..564786e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,6 +1,7 @@
 from dataclasses import dataclass
 
 import pytest
+import pytest_asyncio
 
 
 @dataclass
@@ -57,3 +58,18 @@ def password():
 @pytest.fixture(autouse=False)
 def sys_db_name():
     return global_data.sys_db_name
+
+
+@pytest_asyncio.fixture
+async def client_session():
+    sessions = []
+
+    def get_client_session(client, url):
+        s = client.create_session(url)
+        sessions.append(s)
+        return s
+
+    yield get_client_session
+
+    for session in sessions:
+        await session.close()
diff --git a/tests/test_connection.py b/tests/test_connection.py
index 6c98081..40a525d 100644
--- a/tests/test_connection.py
+++ b/tests/test_connection.py
@@ -8,9 +8,9 @@
 
 
 @pytest.mark.asyncio
-async def test_BasicConnection_ping_failed(url, sys_db_name):
+async def test_BasicConnection_ping_failed(client_session, url, sys_db_name):
     client = AioHTTPClient()
-    session = client.create_session(url)
+    session = client_session(client, url)
     resolver = DefaultHostResolver(1)
 
     connection = BasicConnection(
@@ -22,13 +22,14 @@ async def test_BasicConnection_ping_failed(url, sys_db_name):
 
     with pytest.raises(ServerConnectionError):
         await connection.ping()
-    await session.close()
 
 
 @pytest.mark.asyncio
-async def test_BasicConnection_ping_success(url, sys_db_name, root, password):
+async def test_BasicConnection_ping_success(
+    client_session, url, sys_db_name, root, password
+):
     client = AioHTTPClient()
-    session = client.create_session(url)
+    session = client_session(client, url)
     resolver = DefaultHostResolver(1)
 
     connection = BasicConnection(
@@ -41,4 +42,3 @@ async def test_BasicConnection_ping_success(url, sys_db_name, root, password):
 
     status_code = await connection.ping()
     assert status_code == 200
-    await session.close()
diff --git a/tests/test_http.py b/tests/test_http.py
index e631586..341595b 100644
--- a/tests/test_http.py
+++ b/tests/test_http.py
@@ -13,22 +13,21 @@ def test_DefaultHTTPClient():
 
 
 @pytest.mark.asyncio
-async def test_AioHTTPClient_wrong_url():
+async def test_AioHTTPClient_wrong_url(client_session):
     client = AioHTTPClient()
-    session = client.create_session("http://www.fasdfdsafadawe3523523532plmcom.tgzs")
+    session = client_session(client, "http://localhost:0000")
     request = Request(
         method=Method.GET,
         endpoint="/_api/version",
     )
     with pytest.raises(ClientConnectionError):
         await client.send_request(session, request)
-    await session.close()
 
 
 @pytest.mark.asyncio
-async def test_AioHTTPClient_simple_request(url):
+async def test_AioHTTPClient_simple_request(client_session, url):
     client = AioHTTPClient()
-    session = client.create_session(url)
+    session = client_session(client, url)
     request = Request(
         method=Method.GET,
         endpoint="/_api/version",
@@ -38,13 +37,12 @@ async def test_AioHTTPClient_simple_request(url):
     assert response.url == f"{url}/_api/version"
     assert response.status_code == 401
     assert response.status_text == "Unauthorized"
-    await session.close()
 
 
 @pytest.mark.asyncio
-async def test_AioHTTPClient_auth_pass(url, root, password):
+async def test_AioHTTPClient_auth_pass(client_session, url, root, password):
     client = AioHTTPClient()
-    session = client.create_session(url)
+    session = client_session(client, url)
     request = Request(
         method=Method.GET,
         endpoint="/_api/version",
@@ -55,4 +53,3 @@ async def test_AioHTTPClient_auth_pass(url, root, password):
     assert response.url == f"{url}/_api/version"
     assert response.status_code == 200
     assert response.status_text == "OK"
-    await session.close()