add tests for generate_jwt!/2 for #9

test/token_test.exs

@@ -0,0 +1,14 @@
+defmodule AuthPlugTokenTest do
+  use ExUnit.Case, async: true
+  import AuthPlug.Token
+
+  test "generate_jwt!/2 creates a JWT with the given data and secret" do
+    secret = "secretcanbeanystringyouwant"
+    data = %{email: "[email protected]", name: "Alex"}
+    jwt = generate_jwt!(data, secret)
+    assert Enum.count(String.split(jwt, ".")) == 3
+
+    decoded = verify_jwt!(jwt, secret)
+    assert data.email == Map.get(decoded, "email")
+  end
+end