Fix initialiser location

packages/ember-cli-mirage/addon/initializers/ember-cli-mirage.js

@@ -0,0 +1,61 @@
+import getRfc232TestContext from 'ember-cli-mirage/get-rfc232-test-context';
+import startMirageImpl from 'ember-cli-mirage/start-mirage';
+import * as config from '../mirage/config';
+const { default: makeServer } = config;
+
+//
+// This initializer does two things:
+//
+// 1. Pulls the mirage config objects from the application's config and
+//    registers them in the container so `ember-cli-mirage/start-mirage` can
+//    find them (since it doesn't have access to the app's namespace).
+// 2. Provides legacy support for auto-starting mirage in pre-rfc268 acceptance
+//    tests.
+//
+export function initialize(application) {
+  if (makeServer) {
+    application.register('mirage:make-server', makeServer, {
+      instantiate: false,
+    });
+  }
+
+  const ENV = application.resolveRegistration('config:environment');
+
+  ENV['ember-cli-mirage'] = ENV['ember-cli-mirage'] || {};
+  if (_shouldUseMirage(ENV.environment, ENV['ember-cli-mirage'])) {
+    startMirage(application.__container__, ENV);
+  }
+}
+
+export default {
+  name: 'ember-cli-mirage',
+  initialize,
+};
+
+function startMirage(owner, env) {
+  return startMirageImpl(owner, { env, makeServer });
+}
+
+function _shouldUseMirage(env, addonConfig) {
+  if (typeof FastBoot !== 'undefined') {
+    return false;
+  }
+  if (getRfc232TestContext()) {
+    return false;
+  }
+  let userDeclaredEnabled = typeof addonConfig.enabled !== 'undefined';
+  let defaultEnabled = _defaultEnabled(env, addonConfig);
+
+  return userDeclaredEnabled ? addonConfig.enabled : defaultEnabled;
+}
+
+/*
+  Returns a boolean specifying the default behavior for whether
+  to initialize Mirage.
+*/
+function _defaultEnabled(env, addonConfig) {
+  let usingInDev = env === 'development' && !addonConfig.usingProxy;
+  let usingInTest = env === 'test';
+
+  return usingInDev || usingInTest;
+}

packages/ember-cli-mirage/app/initializers/ember-cli-mirage.js

@@ -1,58 +1,4 @@
-import ENV from '../config/environment';
-import getRfc232TestContext from 'ember-cli-mirage/get-rfc232-test-context';
-import startMirageImpl from 'ember-cli-mirage/start-mirage';
-import * as config from '../mirage/config';
-const { default: makeServer } = config;
-
-//
-// This initializer does two things:
-//
-// 1. Pulls the mirage config objects from the application's config and
-//    registers them in the container so `ember-cli-mirage/start-mirage` can
-//    find them (since it doesn't have access to the app's namespace).
-// 2. Provides legacy support for auto-starting mirage in pre-rfc268 acceptance
-//    tests.
-//
-export default {
-  name: 'ember-cli-mirage',
-  initialize(application) {
-    if (makeServer) {
-      application.register('mirage:make-server', makeServer, {
-        instantiate: false,
-      });
-    }
-
-    ENV['ember-cli-mirage'] = ENV['ember-cli-mirage'] || {};
-    if (_shouldUseMirage(ENV.environment, ENV['ember-cli-mirage'])) {
-      startMirage(application.__container__, ENV);
-    }
-  },
-};
-
-function startMirage(owner, env = ENV) {
-  return startMirageImpl(owner, { env, makeServer });
-}
-
-function _shouldUseMirage(env, addonConfig) {
-  if (typeof FastBoot !== 'undefined') {
-    return false;
-  }
-  if (getRfc232TestContext()) {
-    return false;
-  }
-  let userDeclaredEnabled = typeof addonConfig.enabled !== 'undefined';
-  let defaultEnabled = _defaultEnabled(env, addonConfig);
-
-  return userDeclaredEnabled ? addonConfig.enabled : defaultEnabled;
-}
-
-/*
-  Returns a boolean specifying the default behavior for whether
-  to initialize Mirage.
-*/
-function _defaultEnabled(env, addonConfig) {
-  let usingInDev = env === 'development' && !addonConfig.usingProxy;
-  let usingInTest = env === 'test';
-
-  return usingInDev || usingInTest;
-}
+export {
+  default,
+  initialize,
+} from 'ember-cli-mirage/initializers/ember-cli-mirage';

packages/ember-cli-mirage/index.js

@@ -106,8 +106,8 @@ module.exports = {
     });
   },
 
-  treeForApp(appTree) {
-    let trees = [appTree];
+  treeForAddon(addonTree) {
+    let trees = [addonTree];
     let mirageFilesTree = new Funnel(this.mirageDirectory, {
       destDir: 'mirage',
     });
@@ -117,7 +117,7 @@ module.exports = {
       trees.push(this._lintMirageTree(mirageFilesTree));
     }
 
-    return mergeTrees(trees);
+    return this._super(mergeTrees(trees));
   },
 
   _shouldIncludeFiles() {