Merge remote-tracking branch 'upstream/master' into show-commit-status-from-latest-pipeline

* upstream/master: (557 commits)
  Fix wrong error message expectation in API::Commits spec
  Move admin settings spinach feature to rspec
  Encode when migrating ProcessCommitWorker jobs
  Prevent overflow with vertical scroll when we have space to show content
  Make rubocop happy
  API: Ability to cherry-pick a commit
  Be smarter when finding a sudoed user in API::Helpers
  Backport hooks on group policies for the EE-specific implementation
  API: Ability to get group's project in simple representation
  Add AddLowerPathIndexToRoutes to setup_postgresql.rake
  For single line git commit messages, the close quote should be on the same line as the open quote
  added border-radius and padding to labels
  Allow all alphanumeric characters in file names (!8002)
  Add failing test for #20190
  Don't allow blank MR titles in API
  Replace static fixture for awards_handler_spec (!7661)
  Crontab typo '* */6' -> '0 */6' (4x/day not 1x-per-min-for-1h 4x/day)
  Fix test
  Tweak style and add back wording
  Clean up commit copy to clipboard and make consistent
  ...

1 files changed, 46 insertions, 0 deletions

diff --git a/spec/javascripts/extensions/array_spec.js.es6 b/spec/javascripts/extensions/array_spec.js.es6
new file mode 100644
index 00000000000..2ec759c8e80
--- /dev/null
+++ b/spec/javascripts/extensions/array_spec.js.es6
@@ -0,0 +1,46 @@
+/* eslint-disable space-before-function-paren, no-var, padded-blocks */
+
+/*= require extensions/array */
+
+(function() {
+  describe('Array extensions', function() {
+    describe('first', function() {
+      return it('returns the first item', function() {
+        var arr;
+        arr = [0, 1, 2, 3, 4, 5];
+        return expect(arr.first()).toBe(0);
+      });
+    });
+    describe('last', function() {
+      return it('returns the last item', function() {
+        var arr;
+        arr = [0, 1, 2, 3, 4, 5];
+        return expect(arr.last()).toBe(5);
+      });
+    });
+
+    describe('find', function () {
+      beforeEach(() => {
+        this.arr = [0, 1, 2, 3, 4, 5];
+      });
+
+      it('returns the item that first passes the predicate function', () => {
+        expect(this.arr.find(item => item === 2)).toBe(2);
+      });
+
+      it('returns undefined if no items pass the predicate function', () => {
+        expect(this.arr.find(item => item === 6)).not.toBeDefined();
+      });
+
+      it('error when called on undefined or null', () => {
+        expect(Array.prototype.find.bind(undefined, item => item === 1)).toThrow();
+        expect(Array.prototype.find.bind(null, item => item === 1)).toThrow();
+      });
+
+      it('error when predicate is not a function', () => {
+        expect(Array.prototype.find.bind(this.arr, 1)).toThrow();
+      });
+    });
+  });
+
+}).call(this);