diff --git a/tests/http_base.py b/tests/http_base.py
index e5a80c2..5c0008e 100644
--- a/tests/http_base.py
+++ b/tests/http_base.py
@@ -282,3 +282,14 @@ class DaphneTestCase(unittest.TestCase):
         self.assertIsInstance(address, str)
         self.assert_is_ip_address(address)
         self.assertIsInstance(port, int)
+
+    def test_multiple_workers(self):
+        """
+        Tests that the server can start with multiple workers.
+        """
+        with DaphneTestingInstance() as test_app:
+            # Configure the server with 3 workers
+            test_app.process.kwargs["workers"] = 3
+            test_app.process.start()
+            # Verify that the server is running
+            self.assertTrue(test_app.process.ready.wait(test_app.startup_timeout))
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 8368488..ecbf0de 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -257,6 +257,18 @@ class TestCLIInterface(TestCase):
         """
         self.assertCLI(["--no-server-name"], {"server_name": ""})
 
+    def test_workers_default(self):
+        """
+        Tests that the default number of workers is 1.
+        """
+        self.assertCLI([], {"workers": 1})
+
+    def test_workers_custom(self):
+        """
+        Tests that the CLI correctly parses the --workers argument.
+        """
+        self.assertCLI(["--workers", "4"], {"workers": 4})
+
 
 @skipUnless(os.getenv("ASGI_THREADS"), "ASGI_THREADS environment variable not set.")
 class TestASGIThreads(TestCase):