diff --git a/README.md b/README.md
index e8632cc..fa2a37d 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,6 @@ Next set of things to deal with:
 * streaming support for uploads and downloads.
 * connection pooling.
 * async cookie persistence, for on-disk cookie stores.
-* make sure authentication works okay (does it use adapters, is the API broken there now?)
 * timeouts
 
 ## Requirements
diff --git a/tests/conftest.py b/tests/conftest.py
index b0119d5..0748a94 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -31,6 +31,13 @@ async def echo_form_data(request):
     )
 
 
+async def echo_headers(request):
+    return JSONResponse(
+        {
+            "headers": {key: value for key, value in request.headers.items()}
+        }
+    )
+
 async def redirect1(request):
     url = request.url_for('redirect2')
     return RedirectResponse(url)
@@ -48,6 +55,7 @@ async def redirect3(request):
 routes = [
     Route("/", echo_request, methods=["GET", "DELETE", "OPTIONS", "POST", "PUT", "PATCH"]),
     Route("/echo_form_data", echo_form_data, methods=["POST", "PUT", "PATCH"]),
+    Route("/echo_headers", echo_headers),
     Route("/redirect1", redirect1, name='redirect1'),
     Route("/redirect2", redirect2, name='redirect2'),
     Route("/redirect3", redirect3, name='redirect3'),
diff --git a/tests/test_auth.py b/tests/test_auth.py
new file mode 100644
index 0000000..78d2ce9
--- /dev/null
+++ b/tests/test_auth.py
@@ -0,0 +1,10 @@
+import requests_async
+import pytest
+
+
+@pytest.mark.asyncio
+async def test_auth(server):
+    url = "http://127.0.0.1:8000/echo_headers"
+    response = await requests_async.get(url, auth=('tom', 'pass'))
+    assert response.status_code == 200
+    assert response.json()['headers']['authorization'] == 'Basic dG9tOnBhc3M='