add reference_equal function

1 files changed, 11 insertions, 0 deletions

diff --git a/test/gleam/javascript_test.gleam b/test/gleam/javascript_test.gleam
index c15186f..0cd3e1c 100644
--- a/test/gleam/javascript_test.gleam
+++ b/test/gleam/javascript_test.gleam
@@ -2,6 +2,7 @@ import gleam/javascript.{
   BooleanType, FunctionType, NumberType, ObjectType, StringType, SymbolType,
   UndefinedType,
 }
+import gleeunit/should
 
 pub fn type_of_test() {
   let assert UndefinedType = javascript.type_of(Nil)
@@ -34,3 +35,13 @@ pub fn reference_test() {
   let assert 2 = javascript.set_reference(ref, 3)
   let assert 3 = javascript.dereference(ref)
 }
+
+pub fn reference_equality_test() {
+  javascript.make_reference(0)
+  |> javascript.reference_equal(javascript.make_reference(0))
+  |> should.equal(False)
+
+  let ref = javascript.make_reference(0)
+  javascript.reference_equal(ref, ref)
+  |> should.equal(True)
+}