Add the logout for the API.

test/link_shortener_web/controllers/api/v1/accounts_controller_test.exs

@@ -64,6 +64,45 @@ defmodule LinkShortenerWeb.Api.V1.AccountsControllerTest do
     end
   end
 
+  describe "user signs out" do
+    setup [:create_user]
+
+    setup %{conn: conn} do
+      %{token: token} = create_user_token()
+
+      conn = conn
+      |> put_req_header("accept", "application/json")
+      |> put_req_header("authorization", "Bearer #{token}")
+
+      {:ok, conn: conn, token: token}
+    end
+
+    test "renders the message and the token if successfully sign out", %{conn: conn, token: token} do
+      conn = post(conn, ~p"/api/v1/users/sign_out", %{})
+
+      assert %{
+	"message" => "Successfully sign out",
+	"token" => token,
+      } = json_response(conn, 200)
+    end
+
+    test "renders errors if the token is invalid after revoke", %{conn: conn, token: token} do
+      # revoking
+      conn = post(conn, ~p"/api/v1/users/sign_out", %{})
+      # second revoking
+      conn = post(conn, ~p"/api/v1/users/sign_out", %{})
+
+      assert %{
+	"error" => "invalid_token"
+      } = json_response(conn, 401)
+    end
+  end
+
+  defp create_user_token() do
+    token = user_token_fixture()
+    %{token: token}
+  end
+
   defp create_user(_) do
     user = user_fixture(@create_attrs)
     %{user: user}

test/link_shortener_web/controllers/api/v1/link_controller_test.exs

@@ -2,6 +2,7 @@ defmodule LinkShortenerWeb.Api.V1.LinkControllerTest do
   use LinkShortenerWeb.ConnCase
 
   import LinkShortener.LinksFixtures
+  import LinkShortener.AccountsFixtures
 
   alias LinkShortener.Links.Link
   alias LinkShortener.Links
@@ -25,7 +26,13 @@ defmodule LinkShortenerWeb.Api.V1.LinkControllerTest do
   }
 
   setup %{conn: conn} do
-    {:ok, conn: put_req_header(conn, "accept", "application/json")}
+    %{token: token} = create_user_token()
+
+    conn = conn
+      |> put_req_header("accept", "application/json")
+      |> put_req_header("authorization", "Bearer #{token}")
+
+    {:ok, conn: conn}
   end
 
   describe "index" do
@@ -92,6 +99,11 @@ defmodule LinkShortenerWeb.Api.V1.LinkControllerTest do
     end
   end
 
+  defp create_user_token() do
+    token = user_token_fixture()
+    %{token: token}
+  end
+
   defp create_link(_) do
     link = link_fixture()
     %{link: link}

test/support/factories/UserFactory.ex

@@ -0,0 +1,10 @@
+defmodule LinkShortener.Factories.UserFactory do
+  use ExMachina
+
+  def user_factory do
+    %{
+      email: sequence(:email, &"user-#{&1}@mail.com"),
+      password: "some password"
+    }
+  end
+end

test/support/fixtures/accounts_fixtures.ex

@@ -7,6 +7,7 @@ defmodule LinkShortener.AccountsFixtures do
   alias LinkShortener.Accounts
   alias LinkShortener.Accounts.User
   alias LinkShortenerWeb.Auth.Guardian
+  alias LinkShortener.Factories.UserFactory
 
   @doc """
   Generate a unique user email.
@@ -31,10 +32,7 @@ defmodule LinkShortener.AccountsFixtures do
   end
 
   def user_token_fixture(attrs \\ %{}) do
-    user_params = %{
-      email: "user@mail.com",
-      password: "some password"
-    }
+    user_params = UserFactory.user_factory()
 
     {:ok, %User{} = user} = Accounts.register_user(user_params)
     {:ok, token, _claims} = Guardian.encode_and_sign(user)