1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/non262/Set/shell.js b/js/src/tests/non262/Set/shell.js
new file mode 100644
index 0000000000..8c61eee059
--- /dev/null
+++ b/js/src/tests/non262/Set/shell.js
@@ -0,0 +1,45 @@
+function makeArrayIterator(array) {
+    let i = 0;
+    return {
+        [Symbol.iterator]() {
+            return {
+                next() {
+                    if (i >= array.length) {
+                        return { done: true };
+                    } else {
+                        return { value: array[i++] };
+                    }
+                }
+            };
+        }
+    }
+}
+
+function makeArrayIteratorWithHasMethod(array) {
+    let i = 0;
+    return {
+        has(item) {
+            return array.includes(item);
+        },
+        [Symbol.iterator]() {
+            return {
+                next() {
+                    if (i >= array.length) {
+                        return { done: true };
+                    } else {
+                        return { value: array[i++] };
+                    }
+                }
+            };
+        }
+    };
+}
+
+function assertSetContainsExactOrderedItems(actual, expected) {
+    assertEq(actual.size, expected.length);
+    let index = 0;
+    for (const item of actual) {
+        assertEq(item, expected[index]);
+        index++;
+    }
+}