Merge branch 'master' into zj-create-mattermost-team

1 files changed, 33 insertions, 0 deletions

diff --git a/spec/javascripts/version_check_image_spec.js b/spec/javascripts/version_check_image_spec.js
new file mode 100644
index 00000000000..464c1fce210
--- /dev/null
+++ b/spec/javascripts/version_check_image_spec.js
@@ -0,0 +1,33 @@
+const ClassSpecHelper = require('./helpers/class_spec_helper');
+const VersionCheckImage = require('~/version_check_image');
+require('jquery');
+
+describe('VersionCheckImage', function () {
+  describe('.bindErrorEvent', function () {
+    ClassSpecHelper.itShouldBeAStaticMethod(VersionCheckImage, 'bindErrorEvent');
+
+    beforeEach(function () {
+      this.imageElement = $('<div></div>');
+    });
+
+    it('registers an error event', function () {
+      spyOn($.prototype, 'on');
+      spyOn($.prototype, 'off').and.callFake(function () { return this; });
+
+      VersionCheckImage.bindErrorEvent(this.imageElement);
+
+      expect($.prototype.off).toHaveBeenCalledWith('error');
+      expect($.prototype.on).toHaveBeenCalledWith('error', jasmine.any(Function));
+    });
+
+    it('hides the imageElement on error', function () {
+      spyOn($.prototype, 'hide');
+
+      VersionCheckImage.bindErrorEvent(this.imageElement);
+
+      this.imageElement.trigger('error');
+
+      expect($.prototype.hide).toHaveBeenCalled();
+    });
+  });
+});