Add latest changes from gitlab-org/gitlab@master

1 files changed, 19 insertions, 0 deletions

diff --git a/spec/frontend/lib/utils/set_spec.js b/spec/frontend/lib/utils/set_spec.js
new file mode 100644
index 00000000000..7636a1c634c
--- /dev/null
+++ b/spec/frontend/lib/utils/set_spec.js
@@ -0,0 +1,19 @@
+import { isSubset } from '~/lib/utils/set';
+
+describe('utils/set', () => {
+  describe('isSubset', () => {
+    it.each`
+      subset                   | superset              | expected
+      ${new Set()}             | ${new Set()}          | ${true}
+      ${new Set()}             | ${new Set([1])}       | ${true}
+      ${new Set([1])}          | ${new Set([1])}       | ${true}
+      ${new Set([1, 3])}       | ${new Set([1, 2, 3])} | ${true}
+      ${new Set([1])}          | ${new Set()}          | ${false}
+      ${new Set([1])}          | ${new Set([2])}       | ${false}
+      ${new Set([7, 8, 9])}    | ${new Set([1, 2, 3])} | ${false}
+      ${new Set([1, 2, 3, 4])} | ${new Set([1, 2, 3])} | ${false}
+    `('isSubset($subset, $superset) === $expected', ({ subset, superset, expected }) => {
+      expect(isSubset(subset, superset)).toBe(expected);
+    });
+  });
+});