Fix some test warnings.

test/web/mastodon_api/mastodon_api_controller_test.exs

@@ -530,7 +530,7 @@ test "returns the favorites of a user", %{conn: conn} do
   end
 
   describe "updating credentials" do
-    test "updates the user's bio" do
+    test "updates the user's bio", %{conn: conn} do
       user = insert(:user)
 
       conn = conn
@@ -541,7 +541,7 @@ test "updates the user's bio" do
       assert user["note"] == "I drink #cofe"
     end
 
-    test "updates the user's name" do
+    test "updates the user's name", %{conn: conn} do
       user = insert(:user)
 
       conn = conn
@@ -552,7 +552,7 @@ test "updates the user's name" do
       assert user["display_name"] == "markorepairs"
     end
 
-    test "updates the user's avatar" do
+    test "updates the user's avatar", %{conn: conn} do
       user = insert(:user)
 
       new_avatar = %Plug.Upload{content_type: "image/jpg", path: Path.absname("test/fixtures/image.jpg"), filename: "an_image.jpg"}
@@ -565,7 +565,7 @@ test "updates the user's avatar" do
       assert user["avatar"] != "https://placehold.it/48x48"
     end
 
-    test "updates the user's banner" do
+    test "updates the user's banner", %{conn: conn} do
       user = insert(:user)
 
       new_header = %Plug.Upload{content_type: "image/jpg", path: Path.absname("test/fixtures/image.jpg"), filename: "an_image.jpg"}
@@ -579,7 +579,7 @@ test "updates the user's banner" do
     end
   end
 
-  test "get instance information" do
+  test "get instance information", %{conn: conn} do
     insert(:user, %{local: true})
     user = insert(:user, %{local: true})
     insert(:user, %{local: false})

test/web/twitter_api/twitter_api_controller_test.exs

@@ -585,7 +585,7 @@ test "it returns a user's friends", %{conn: conn} do
   end
 
   describe "POST /api/account/update_profile.json" do
-    test "it updates a user's profile" do
+    test "it updates a user's profile", %{conn: conn} do
       user = insert(:user)
 
       conn = conn
@@ -627,7 +627,7 @@ test "it returns search results", %{conn: conn} do
   end
 
   describe "GET /api/statusnet/tags/timeline/:tag.json" do
-    test "it returns the tags timeline" do
+    test "it returns the tags timeline", %{conn: conn} do
       user = insert(:user)
       user_two = insert(:user, %{nickname: "shp@shitposter.club"})