Warn about unsaved settings using jquery.areyousure

library/jquery.AreYouSure/spec/javascripts/fixtures/input-text.html

@@ -0,0 +1,4 @@
+<form>
+  <input type="text" name="a">
+  <input type="submit">
+</form>

library/jquery.AreYouSure/spec/javascripts/jquery.are-you-sure_spec.js

@@ -0,0 +1,28 @@
+'use strict';
+
+// Karma adds 'base/' to the default path
+jasmine.getFixtures().fixturesPath = 'base/spec/javascripts/fixtures';
+
+describe("A form's", function() {
+  var $form = undefined;
+
+  describe('text input', function() {
+    var $textInput = undefined;
+
+    beforeEach(function() {
+      loadFixtures('input-text.html');
+      $form = $('form');
+      $textInput = $('input[type=text]');
+      $form.areYouSure();
+    });
+
+    it('should cause dirtyness after its value changes', function(done) {
+      expect($form.hasClass('dirty')).toBe(false);
+      $textInput.val('new').change();
+      setTimeout(function() {
+        expect($form.hasClass('dirty')).toBe(true);
+        done();
+      }, 0);
+    });
+  });
+});