DEV: Import ember ENV instead of Ember.testing (#8305)

app/assets/javascripts/admin/components/admin-report.js.es6

@@ -9,6 +9,7 @@ import { outputExportResult } from "discourse/lib/export-result";
 import { isNumeric } from "discourse/lib/utilities";
 import { SCHEMA_VERSION, default as Report } from "admin/models/report";
 import computed from "ember-addons/ember-computed-decorators";
+import ENV from "discourse-common/config/environment";
 
 const TABLE_OPTIONS = {
   perPage: 8,
@@ -162,8 +163,8 @@ export default Component.extend({
     let reportKey = "reports:";
     reportKey += [
       dataSourceName,
-      Ember.testing ? "start" : startDate.replace(/-/g, ""),
-      Ember.testing ? "end" : endDate.replace(/-/g, ""),
+      ENV.environment === "test" ? "start" : startDate.replace(/-/g, ""),
+      ENV.environment === "test" ? "end" : endDate.replace(/-/g, ""),
       "[:prev_period]",
       this.get("reportOptions.table.limit"),
       customFilters

app/assets/javascripts/admin/components/themes-list-item.js.es6

@@ -7,6 +7,7 @@ import {
 } from "ember-addons/ember-computed-decorators";
 import { iconHTML } from "discourse-common/lib/icon-library";
 import { escape } from "pretty-text/sanitizer";
+import ENV from "discourse-common/config/environment";
 
 const MAX_COMPONENTS = 4;
 
@@ -43,7 +44,7 @@ export default Component.extend({
   animate(isInitial) {
     const $container = $(this.element);
     const $list = $(this.element.querySelector(".components-list"));
-    if ($list.length === 0 || Ember.testing) {
+    if ($list.length === 0 || ENV.environment === 'test') {
       return;
     }
     const duration = 300;

app/assets/javascripts/admin/components/themes-list.js.es6

@@ -2,6 +2,7 @@ import { gt, equal } from "@ember/object/computed";
 import Component from "@ember/component";
 import { THEMES, COMPONENTS } from "admin/models/theme";
 import { default as computed } from "ember-addons/ember-computed-decorators";
+import { getOwner } from "@ember/application";
 
 export default Component.extend({
   THEMES: THEMES,
@@ -70,7 +71,7 @@ export default Component.extend({
       }
     },
     navigateToTheme(theme) {
-      Ember.getOwner(this)
+      getOwner(this)
         .lookup("router:main")
         .transitionTo("adminCustomizeThemes.show", theme);
     }