allow using a list of hosts on a route

tests/test_vhosts.py

@@ -4,7 +4,7 @@ from sanic.utils import sanic_endpoint_test
 
 
 def test_vhosts():
-    app = Sanic('test_text')
+    app = Sanic('test_vhosts')
 
     @app.route('/', host="example.com")
     async def handler(request):
@@ -21,3 +21,19 @@ def test_vhosts():
     headers = {"Host": "subdomain.example.com"}
     request, response = sanic_endpoint_test(app, headers=headers)
     assert response.text == "You're at subdomain.example.com!"
+
+
+def test_vhosts_with_list():
+    app = Sanic('test_vhosts')
+
+    @app.route('/', host=["hello.com", "world.com"])
+    async def handler(request):
+        return text("Hello, world!")
+
+    headers = {"Host": "hello.com"}
+    request, response = sanic_endpoint_test(app, headers=headers)
+    assert response.text == "Hello, world!"
+
+    headers = {"Host": "world.com"}
+    request, response = sanic_endpoint_test(app, headers=headers)
+    assert response.text == "Hello, world!"