Support for "Only show overridden" in site text customization

test/javascripts/acceptance/admin-site-text-test.js.es6

@@ -6,9 +6,22 @@ test("search for a key", () => {
   visit("/admin/customize/site_texts");
 
   fillIn('.site-text-search', 'Test');
-  andThen(() => ok(exists('.site-text')));
+  andThen(() => {
+    ok(exists('.site-text'));
+    ok(exists(".site-text:not(.overridden)"));
+    ok(exists('.site-text.overridden'));
+  });
+
+
+  // Only show overridden
+  click('.extra-options input');
+  andThen(() => {
+    ok(!exists(".site-text:not(.overridden)"));
+    ok(exists('.site-text.overridden'));
+  });
 });
 
+
 test("edit and revert a site text by key", () => {
   visit("/admin/customize/site_texts/site.test");
   andThen(() => {

test/javascripts/helpers/create-pretender.js.es6

@@ -210,7 +210,7 @@ export default function() {
     });
 
     this.get('/fruits', function() {
-      return response({ __rest_serializer: "1", fruits, farmers, colors });
+      return response({ __rest_serializer: "1", fruits, farmers, colors, extras: {hello: 'world'} });
     });
 
     this.get('/widgets/:widget_id', function(request) {
@@ -262,7 +262,16 @@ export default function() {
     this.post('/topics/timings', () => response(200, {}));
 
     const siteText = {id: 'site.test', value: 'Test McTest'};
-    this.get('/admin/customize/site_texts', () => response(200, {site_texts: [siteText] }));
+    const overridden = {id: 'site.overridden', value: 'Overridden', overridden: true };
+    this.get('/admin/customize/site_texts', request => {
+
+      if (request.queryParams.overridden) {
+        return response(200, {site_texts: [overridden] })
+      } else {
+        return response(200, {site_texts: [siteText, overridden] })
+      }
+    });
+
     this.get('/admin/customize/site_texts/:key', () => response(200, {site_text: siteText }));
     this.delete('/admin/customize/site_texts/:key', () => response(200, {site_text: siteText }));
 

test/javascripts/models/store-test.js.es6

@@ -116,7 +116,6 @@ test('destroyRecord when new', function(assert) {
   });
 });
 
-
 test('find embedded', function(assert) {
   const store = createStore();
   return store.find('fruit', 2).then(function(f) {
@@ -136,6 +135,7 @@ test('findAll embedded', function(assert) {
   return store.findAll('fruit').then(function(fruits) {
     assert.equal(fruits.objectAt(0).get('farmer.name'), 'Old MacDonald');
     assert.equal(fruits.objectAt(0).get('farmer'), fruits.objectAt(1).get('farmer'), 'points at the same object');
+    assert.equal(fruits.get('extras.hello'), 'world', 'it can supply extra information');
 
     const fruitCols = fruits.objectAt(0).get('colors');
     assert.equal(fruitCols.length, 2);