Run worker inline so it's easier to see errors

tests/__init__.py

@@ -2,6 +2,7 @@ import functools
 import os
 import shutil
 import subprocess
+import time
 from pathlib import Path
 from unittest import TestCase
 
@@ -17,6 +18,7 @@ from catfish.utils.processes import (
     terminate_subprocesses,
 )
 from catfish.utils.sockets import create_base_socket_dir, delete_base_socket_dir
+from catfish.worker.server import WORKER_SERVER_SOCKET
 
 
 class BaseTestCase(TestCase):
@@ -47,24 +49,22 @@ class BaseWorkerTestCase(BaseTestCase):
     def setUp(self):
         super().setUp()
         self.unused_port = unused_port()
-        result = subprocess.run(
-            [shutil.which("ctf"), "start", "--port", str(self.unused_port)],
-            stdout=subprocess.PIPE,
-            stderr=subprocess.STDOUT,
+        self.worker_process = subprocess.Popen(
+            [
+                shutil.which("ctf"),
+                "start",
+                "--port",
+                str(self.unused_port),
+                "--no-fork",
+            ],
             universal_newlines=True,
-            timeout=10,
         )
-        self.assertEqual(result.returncode, 0, result.stdout)
+        while not WORKER_SERVER_SOCKET.exists():
+            time.sleep(0.1)
 
     def tearDown(self):
-        result = subprocess.run(
-            [shutil.which("ctf"), "stop"],
-            stdout=subprocess.PIPE,
-            stderr=subprocess.STDOUT,
-            universal_newlines=True,
-            timeout=10,
-        )
-        self.assertEqual(result.returncode, 0, result.stdout)
+        self.worker_process.terminate()
+        self.worker_process.wait()
         super().tearDown()