Add accessibility-focussed unit tests

Author: Andrew Eisenberg

test/select.spec.js

@@ -69,6 +69,7 @@ describe('ui-select tests', function() {
       if (attrs.theme !== undefined) { attrsHtml += ' theme="' + attrs.theme + '"'; }
       if (attrs.tabindex !== undefined) { attrsHtml += ' tabindex="' + attrs.tabindex + '"'; }
       if (attrs.tagging !== undefined) { attrsHtml += ' tagging="' + attrs.tagging + '"'; }
+      if (attrs.title !== undefined) { attrsHtml += ' title="' + attrs.title + '"'; }
     }
 
     return compileTemplate(
@@ -1656,4 +1657,32 @@ describe('ui-select tests', function() {
     });
 
   });
+
+  describe('accessibility', function() {
+    it('should have baseTitle in scope', function() {
+      expect(createUiSelect().scope().$select.baseTitle).toBe('Select box');
+      expect(createUiSelect().scope().$select.focusserTitle).toBe('Select box focus');
+      expect(createUiSelect({ title: 'Choose a person' }).scope().$select.baseTitle).toBe('Choose a person');
+      expect(createUiSelect({ title: 'Choose a person' }).scope().$select.focusserTitle).toBe('Choose a person focus');
+    });
+
+    it('should have aria-label on all input and button elements', function() {
+      checkTheme();
+      checkTheme('select2');
+      checkTheme('selectize');
+      checkTheme('bootstrap');
+
+      function checkTheme(theme) {
+        var el = createUiSelect({ theme: theme});
+        checkElements(el.find('input'));
+        checkElements(el.find('button'));
+
+        function checkElements(els) {
+          for (var i = 0; i < els.length; i++) {
+            expect(els[i].attributes['aria-label']).toBeTruthy();
+          };
+        }
+      }
+    });
+  });
 });