FIX: Resetting site setting didn't remove "overriden" state

app/assets/javascripts/admin/mixins/setting-component.js.es6

@@ -84,7 +84,7 @@ export default Ember.Mixin.create({
     this.$().on("keydown.setting-enter", ".input-setting-string", function(e) {
       if (e.keyCode === 13) {
         // enter key
-        self._save();
+        self.send("save");
       }
     });
   }.on("didInsertElement"),
@@ -122,7 +122,7 @@ export default Ember.Mixin.create({
 
     resetDefault() {
       this.set("buffered.value", this.get("setting.default"));
-      this._save();
+      this.send("save");
     },
 
     toggleSecret() {

app/assets/javascripts/admin/templates/components/site-setting.hbs

@@ -13,5 +13,5 @@
   {{#if setting.secret}}
     {{d-button action="toggleSecret" icon="eye-slash"}}
   {{/if}}
-  {{d-button action="resetDefault" icon="undo" label="admin.settings.reset"}}
+  {{d-button class="undo" action="resetDefault" icon="undo" label="admin.settings.reset"}}
 {{/if}}

app/assets/javascripts/admin/templates/site-settings.hbs

@@ -2,8 +2,8 @@
 
   <div class='controls'>
     {{d-button action="toggleMenu" class="menu-toggle" icon="bars"}}
-    {{text-field value=filter placeholderKey="type_to_filter" class="no-blur"}}
-    {{d-button action="clearFilter" label="admin.site_settings.clear_filter"}}
+    {{text-field id="setting-filter" value=filter placeholderKey="type_to_filter" class="no-blur"}}
+    {{d-button id="clear-filter" action="clearFilter" label="admin.site_settings.clear_filter"}}
   </div>
   <div class='search controls'>
     <label>

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

@@ -0,0 +1,45 @@
+import { acceptance } from "helpers/qunit-helpers";
+
+acceptance("Admin - Site Settings", {
+  loggedIn: true,
+
+  pretend(server, helper) {
+    server.put("/admin/site_settings/**", () =>
+      helper.response({ success: "OK" })
+    );
+  }
+});
+
+QUnit.test("changing value updates dirty state", async assert => {
+  await visit("/admin/site_settings");
+  await fillIn("#setting-filter", "title");
+  assert.equal(count(".row.setting"), 1, "filter returns 1 site setting");
+  assert.ok(!exists(".row.setting.overridden"), "setting isn't overriden");
+
+  await fillIn(".input-setting-string", "Test");
+  await click("button.cancel");
+  assert.ok(
+    !exists(".row.setting.overridden"),
+    "canceling doesn't mark setting as overriden"
+  );
+
+  await fillIn(".input-setting-string", "Test");
+  await click("button.ok");
+  assert.ok(
+    exists(".row.setting.overridden"),
+    "saving marks setting as overriden"
+  );
+
+  await click("button.undo");
+  assert.ok(
+    !exists(".row.setting.overridden"),
+    "setting isn't marked as overriden after undo"
+  );
+
+  await fillIn(".input-setting-string", "Test");
+  await keyEvent(".input-setting-string", "keydown", 13); // enter
+  assert.ok(
+    exists(".row.setting.overridden"),
+    "saving via Enter key marks setting as overriden"
+  );
+});

test/javascripts/fixtures/site_settings.js.es6

@@ -0,0 +1,63 @@
+export default {
+  "/admin/site_settings": {
+    site_settings: [
+      {
+        setting: "title",
+        description: "The name of this site, as used in the title tag.",
+        default: "Discourse",
+        value: "Discourse",
+        category: "required",
+        preview: null,
+        secret: false,
+        type: "string"
+      },
+      {
+        setting: "contact_email",
+        description:
+          "Email address of key contact responsible for this site. Used for critical notifications, as well as on the /about contact form for urgent matters.",
+        default: "",
+        value: "",
+        category: "required",
+        preview: null,
+        secret: false,
+        type: "email"
+      },
+      {
+        setting: "site_contact_username",
+        description:
+          "A valid staff username to send all automated messages from. If left blank the default System account will be used.",
+        default: "",
+        value: "",
+        category: "required",
+        preview: null,
+        secret: false,
+        type: "username"
+      },
+      {
+        setting: "top_menu",
+        description:
+          "Determine which items appear in the homepage navigation, and in what order. Example latest|new|unread|categories|top|read|posted|bookmarks",
+        default: "latest|new|unread|top|categories",
+        value: "latest|new|unread|top|categories",
+        category: "basic",
+        preview: null,
+        secret: false,
+        type: "list",
+        choices: [
+          "latest",
+          "new",
+          "unread",
+          "top",
+          "categories",
+          "read",
+          "posted",
+          "bookmarks"
+        ],
+        list_type: "compact"
+      }
+    ],
+    diags: {
+      last_message_processed: null
+    }
+  }
+};