diff --git a/tests_integrity/test_aes_session.py b/tests_integrity/test_aes_session.py
index a629da7..ecdd975 100644
--- a/tests_integrity/test_aes_session.py
+++ b/tests_integrity/test_aes_session.py
@@ -7,7 +7,6 @@
 
 from .support import check_url, start_server
 
-# pylint: disable=inconsistent-return-statements
 # pylint: disable=missing-function-docstring
 # pylint: disable=no-self-use
 # pylint: disable=redefined-outer-name
@@ -16,17 +15,19 @@
 @fixture(scope="module")
 def url(request):
     """The URL (server fixture)."""
-    val = environ.get("TEST_AES_SESSION_URL", "").strip('/')
+    process = None
+    val = environ.get("TEST_AES_SESSION_URL", "").rstrip('/')
     if val:
-        return val
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/aes_session.py'))
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+        yield val
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/aes_session.py'))
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 @fixture
diff --git a/tests_integrity/test_digest.py b/tests_integrity/test_digest.py
index a4feae7..bf1c489 100644
--- a/tests_integrity/test_digest.py
+++ b/tests_integrity/test_digest.py
@@ -7,7 +7,6 @@
 
 from .support import check_url, start_server
 
-# pylint: disable=inconsistent-return-statements
 # pylint: disable=missing-function-docstring
 # pylint: disable=redefined-outer-name
 # pylint: disable=no-self-use
@@ -16,17 +15,19 @@
 @fixture(scope="module")
 def url(request):
     """The URL (server fixture)."""
-    val = environ.get("TEST_DIGEST_URL", "").strip('/')
+    process = None
+    val = environ.get("TEST_DIGEST_URL", "").rstrip('/')
     if val:
-        return val
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/http_digest.py'))
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+        yield val
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/http_digest.py'))
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 @fixture
diff --git a/tests_integrity/test_json.py b/tests_integrity/test_json.py
index 043dd46..bf1cb22 100644
--- a/tests_integrity/test_json.py
+++ b/tests_integrity/test_json.py
@@ -8,7 +8,6 @@
 from . support import start_server, check_url
 
 # pylint: disable=missing-function-docstring
-# pylint: disable=inconsistent-return-statements
 # pylint: disable=redefined-outer-name
 # pylint: disable=no-self-use
 # pylint: disable=consider-using-f-string
@@ -17,17 +16,19 @@
 @fixture(scope="module")
 def server(request):
     """Fixture for starting the JSON example server."""
-    value = environ.get("TEST_SIMPLE_JSON_URL", "").strip('/')
+    process = None
+    value = environ.get("TEST_SIMPLE_JSON_URL", "").rstrip('/')
     if value:
-        return value
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/simple_json.py'))
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+        yield value
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/simple_json.py'))
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 class TestHeaders:
diff --git a/tests_integrity/test_metrics.py b/tests_integrity/test_metrics.py
index 08445fb..1f513a2 100644
--- a/tests_integrity/test_metrics.py
+++ b/tests_integrity/test_metrics.py
@@ -15,18 +15,19 @@
 def url(request):
     """Returns the server URL or starts the metrics application if it doesn't
     exist."""
-    retval = environ.get("TEST_METRICS_URL", "").strip('/')
+    process = None
+    retval = environ.get("TEST_METRICS_URL", "").rstrip('/')
     if retval:
         yield retval
-        return
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/metrics.py'))
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/metrics.py'))
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 class TestMetrics():
diff --git a/tests_integrity/test_openapi.py b/tests_integrity/test_openapi.py
index 501a9e0..294f89a 100644
--- a/tests_integrity/test_openapi.py
+++ b/tests_integrity/test_openapi.py
@@ -19,18 +19,19 @@
 @fixture(scope="module")
 def url(request):
     """Fixture for starting the OpenAPI example server."""
-    url = environ.get("TEST_OPENAPI_URL", "").strip('/')
-    if url:
-        yield url
-        return
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/openapi3.py'))
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+    process = None
+    val = environ.get("TEST_OPENAPI_URL", "").rstrip('/')
+    if val:
+        yield val
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/openapi3.py'))
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 @fixture
diff --git a/tests_integrity/test_profile.py b/tests_integrity/test_profile.py
index 26a06dd..eda52d1 100644
--- a/tests_integrity/test_profile.py
+++ b/tests_integrity/test_profile.py
@@ -7,7 +7,6 @@
 from . support import start_server, check_url
 
 # pylint: disable=missing-function-docstring
-# pylint: disable=inconsistent-return-statements
 # pylint: disable=redefined-outer-name
 # pylint: disable=no-self-use
 # pylint: disable=consider-using-f-string
@@ -17,18 +16,20 @@
 @fixture(scope="module")
 def server(request):
     """Fixture for starting the profiling JSON example server."""
-    value = environ.get("TEST_SIMPLE_JSON_URL", "").strip('/')
+    process = None
+    value = environ.get("TEST_SIMPLE_JSON_URL", "").rstrip('/')
     if value:
-        return value
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/simple_json.py'),
-        {"PROFILE": "1"})
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+        yield value
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/simple_json.py'),
+            {"PROFILE": "1"})
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 class TestRequest:
diff --git a/tests_integrity/test_session.py b/tests_integrity/test_session.py
index 3cc40ff..9e53b95 100644
--- a/tests_integrity/test_session.py
+++ b/tests_integrity/test_session.py
@@ -7,7 +7,6 @@
 
 from .support import check_url, start_server
 
-# pylint: disable=inconsistent-return-statements
 # pylint: disable=missing-function-docstring
 # pylint: disable=no-self-use
 # pylint: disable=redefined-outer-name
@@ -16,17 +15,19 @@
 @fixture(scope="module")
 def url(request):
     """The URL (server fixture)."""
-    val = environ.get("TEST_SESSION_URL", "").strip('/')
+    process = None
+    val = environ.get("TEST_SESSION_URL", "").rstrip('/')
     if val:
-        return val
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/session.py'))
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+        yield val
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/session.py'))
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 @fixture
diff --git a/tests_integrity/test_simple.py b/tests_integrity/test_simple.py
index fb104de..4e899ef 100644
--- a/tests_integrity/test_simple.py
+++ b/tests_integrity/test_simple.py
@@ -7,7 +7,6 @@
 
 from .support import check_url, start_server
 
-# pylint: disable=inconsistent-return-statements
 # pylint: disable=missing-function-docstring
 # pylint: disable=no-self-use
 # pylint: disable=redefined-outer-name
@@ -17,17 +16,19 @@
 @fixture(scope="module")
 def url(request):
     """The URL (server fixture)."""
-    url = environ.get("TEST_SIMPLE_URL", "").strip('/')
-    if url:
-        return url
-
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/simple.py'))
-
-    yield "http://localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+    process = None
+    val = environ.get("TEST_SIMPLE_URL", "").rstrip('/')
+    if val:
+        yield val
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/simple.py'))
+        yield "http://localhost:8080"  # server is running
+
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 @fixture
diff --git a/tests_integrity/test_websocket.py b/tests_integrity/test_websocket.py
index 5427099..572159d 100644
--- a/tests_integrity/test_websocket.py
+++ b/tests_integrity/test_websocket.py
@@ -10,7 +10,6 @@
 
 from . support import start_server, check_url
 
-# pylint: disable=inconsistent-return-statements
 # pylint: disable=missing-function-docstring
 # pylint: disable=redefined-outer-name
 # pylint: disable=no-self-use
@@ -19,18 +18,20 @@
 @fixture(scope="module")
 def server(request):
     """Fixture for starting the WebSocket example server."""
-    value = environ.get("TEST_WEBSOCKET_URL", "").strip('/')
+    process = None
+    value = environ.get("TEST_WEBSOCKET_URL", "").rstrip('/')
     if value:
-        return value
+        yield value
+    else:
+        process = start_server(
+            request,
+            join(dirname(__file__), pardir, 'examples/websocket.py'),
+            close=False)
+        yield "localhost:8080"  # server is running
 
-    process = start_server(
-        request,
-        join(dirname(__file__), pardir, 'examples/websocket.py'),
-        close=False)
-
-    yield "localhost:8080"  # server is running
-    process.kill()
-    process.wait()
+    if process is not None:
+        process.kill()
+        process.wait()
 
 
 @fixture(scope="module")