Test casting a page param to a non-existing atom

bartblast · Jan 27, 2025 · cc26448 · cc26448
1 parent a18c7bc
commit cc26448
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/test/elixir/hologram/page_test.exs b/test/elixir/hologram/page_test.exs
@@ -43,10 +43,20 @@ defmodule Hologram.PageTest do
       assert cast_params(Module6, %{a: :test}) == %{a: :test}
     end
 
-    test "string -> atom" do
+    test "to existing atom" do
       assert cast_params(Module6, %{a: "test"}) == %{a: :test}
     end
 
+    test "to non-existing atom" do
+      random_string = random_string()
+
+      assert_raise Hologram.ParamError,
+                   ~s/can't cast param "a" with value "#{random_string}" to atom, because it's not an already existing atom/,
+                   fn ->
+                     cast_params(Module6, %{a: random_string})
+                   end
+    end
+
     test "map -> atom" do
       assert_raise Hologram.ParamError,
                    ~s/can't cast param "a" with value %{x: 1, y: 2} to atom, because it's of invalid type/,