diff --git a/pythondap/python/pythondap/cli.py b/pythondap/python/pythondap/cli.py
index eb2d4ac..1ea3276 100644
--- a/pythondap/python/pythondap/cli.py
+++ b/pythondap/python/pythondap/cli.py
@@ -12,7 +12,7 @@ def main():
     parser.add_argument("-n", "--configuration")
     args = parser.parse_args()
 
-    ns = DebugSession(
+    ns = DebugSession(  # noqa: F841
         breakpoints=args.breakpoint,
         file=args.file,
         config_path=args.launch_configuration,
diff --git a/pythondap/tests/conftest.py b/pythondap/tests/conftest.py
index d663f8f..44e141d 100644
--- a/pythondap/tests/conftest.py
+++ b/pythondap/tests/conftest.py
@@ -1,4 +1,8 @@
 from contextlib import contextmanager
+import copy
+import io
+import json
+from os import PathLike
 import shutil
 import socket
 import subprocess as sp
@@ -8,6 +12,8 @@
 
 import pytest
 
+from pythondap.session import DebugSession
+
 
 # vendored from LocalStack
 def get_free_tcp_port(blocklist: list[int] | None = None) -> int:
@@ -84,3 +90,53 @@ def execute(sleep_time: int = 5):
         child.kill()
 
     yield execute
+
+
+LAUNCH_TEMPLATE = {
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "PLACEHOLDER",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "PLACEHOLDER",
+            "justMyCode": False,
+        },
+    ],
+}
+
+
+@pytest.fixture
+def write_config():
+    def inner(outfile: io.StringIO, script_path: PathLike, config_name: str):
+        template = copy.deepcopy(LAUNCH_TEMPLATE)
+        template["configurations"][0]["name"] = config_name
+        template["configurations"][0]["program"] = str(script_path)
+        json.dump(template, outfile)
+
+    return inner
+
+
+@pytest.fixture
+def environment(run_server, tmp_path, write_config):
+    @contextmanager
+    def inner(python_code: str, breakpoints: list[int]):
+        script = tmp_path.joinpath("script.py")
+        with script.open("w") as outfile:
+            outfile.write(python_code)
+
+        config_path = tmp_path.joinpath("launch.json")
+        config_name = "Launch"
+        with config_path.open("w") as outfile:
+            write_config(outfile, script, config_name)
+
+        debugger = DebugSession(
+            breakpoints=breakpoints,
+            file=str(script),
+            config_path=str(config_path),
+            config_name=config_name,
+            program=script,
+        )
+        yield debugger
+
+    yield inner
diff --git a/pythondap/tests/test_hooks.py b/pythondap/tests/test_hooks.py
index a5e19a7..167231a 100644
--- a/pythondap/tests/test_hooks.py
+++ b/pythondap/tests/test_hooks.py
@@ -1,69 +1,9 @@
-from contextlib import contextmanager
-import copy
-import io
-import json
-from os import PathLike
-
-import pytest
-
-from pythondap.session import DebugSession
-
-
 PYTHON_CODE = """a = 10
 b = 20
 a = a + b
 print(a)
 """
 
-LAUNCH_TEMPLATE = {
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "name": "PLACEHOLDER",
-            "type": "debugpy",
-            "request": "launch",
-            "program": "PLACEHOLDER",
-            "justMyCode": False,
-        },
-    ],
-}
-
-
-@pytest.fixture
-def write_config():
-    def inner(outfile: io.StringIO, script_path: PathLike, config_name: str):
-        template = copy.deepcopy(LAUNCH_TEMPLATE)
-        template["configurations"][0]["name"] = config_name
-        template["configurations"][0]["program"] = str(script_path)
-        json.dump(template, outfile)
-
-    return inner
-
-
-@pytest.fixture
-def environment(run_server, tmp_path, write_config):
-    @contextmanager
-    def inner(python_code: str, breakpoints: list[int]):
-        script = tmp_path.joinpath("script.py")
-        with script.open("w") as outfile:
-            outfile.write(python_code)
-
-        config_path = tmp_path.joinpath("launch.json")
-        config_name = "Launch"
-        with config_path.open("w") as outfile:
-            write_config(outfile, script, config_name)
-
-        debugger = DebugSession(
-            breakpoints=breakpoints,
-            file=str(script),
-            config_path=str(config_path),
-            config_name=config_name,
-            program=script,
-        )
-        yield debugger
-
-    yield inner
-
 
 def test_execute(environment):
     with environment(PYTHON_CODE, breakpoints=[0]) as env: