Disable JS tests due to: nim-lang/Nim#21317

Author: treeform

tests/test_refs.nim

@@ -11,33 +11,35 @@ var
 doAssert a.toJson() == """123"""
 doAssert b.toJson() == """null"""
 
-doAssert $(fromJson("""1""", ref int)[]) == "1"
-doAssert fromJson("""null""", ref int) == nil
-
-proc check[T](v: T) =
-  var v2: ref T = newRef(v)
-  var v3: ref T = nil
-  doAssert v2.toJson.fromJson(ref T)[] == v2[]
-  doAssert v3.toJson.fromJson(ref T) == nil
-
-check(1.int)
-check(1.int8)
-check(1.int16)
-check(1.int32)
-check(1.int64)
-check(1.uint8)
-check(1.uint16)
-check(1.uint32)
-check(1.uint64)
-
-check("hello")
-check([1, 2, 3])
-check(@[1, 2, 3])
-
-type Entry = object
-  color: string
-
-check(Entry())
+when not defined(js):
+  # JS has a bug with ref ints: https://github.com/nim-lang/Nim/issues/21317
+  doAssert $(fromJson("""1""", ref int)[]) == "1"
+  doAssert fromJson("""null""", ref int) == nil
+
+  proc check[T](v: T) =
+    var v2: ref T = newRef(v)
+    var v3: ref T = nil
+    doAssert v2.toJson.fromJson(ref T)[] == v2[]
+    doAssert v3.toJson.fromJson(ref T) == nil
+
+  check(1.int)
+  check(1.int8)
+  check(1.int16)
+  check(1.int32)
+  check(1.int64)
+  check(1.uint8)
+  check(1.uint16)
+  check(1.uint32)
+  check(1.uint64)
+
+  check("hello")
+  check([1, 2, 3])
+  check(@[1, 2, 3])
+
+  type Entry = object
+    color: string
+
+  check(Entry())
 
 type
   Test = object