diff --git a/tests/test_cookies_identity.py b/tests/test_cookies_identity.py
index d4627ac..e197751 100644
--- a/tests/test_cookies_identity.py
+++ b/tests/test_cookies_identity.py
@@ -94,14 +94,14 @@ def test_forget(loop, test_client):
     client = yield from test_client(app)
     resp = yield from client.post('/login')
     assert 200 == resp.status
-    assert resp.url.endswith('/')
+    assert str(resp.url).endswith('/')
     cookies = client.session.cookie_jar.filter_cookies(
         client.make_url('/'))
     assert 'Andrew' == cookies['AIOHTTP_SECURITY'].value
     yield from resp.release()
     resp = yield from client.post('/logout')
     assert 200 == resp.status
-    assert resp.url.endswith('/')
+    assert str(resp.url).endswith('/')
     cookies = client.session.cookie_jar.filter_cookies(
         client.make_url('/'))
     assert 'AIOHTTP_SECURITY' not in cookies
diff --git a/tests/test_session_identity.py b/tests/test_session_identity.py
index a06a649..86f9cf7 100644
--- a/tests/test_session_identity.py
+++ b/tests/test_session_identity.py
@@ -116,14 +116,14 @@ def test_forget(make_app, test_client):
 
     resp = yield from client.post('/login')
     assert 200 == resp.status
-    assert resp.url.endswith('/')
+    assert str(resp.url).endswith('/')
     txt = yield from resp.text()
     assert 'Andrew' == txt
     yield from resp.release()
 
     resp = yield from client.post('/logout')
     assert 200 == resp.status
-    assert resp.url.endswith('/')
+    assert str(resp.url).endswith('/')
     txt = yield from resp.text()
     assert '' == txt
     yield from resp.release()