[FEAT BUGFIX] enable canonical state updates to deleted records

addon/-private/system/model/states.js

@@ -701,7 +701,8 @@ const RootState = {
       },
 
       willCommit() { },
-      didCommit()  { }
+      didCommit()  { },
+      pushedData() {}
     },
 
     invalid: {

tests/unit/model-test.js

@@ -16,11 +16,13 @@ module('unit/model - DS.Model', {
   beforeEach() {
     Person = DS.Model.extend({
       name: DS.attr('string'),
-      isDrugAddict: DS.attr('boolean')
+      isDrugAddict: DS.attr('boolean'),
+      isArchived: DS.attr()
     });
     Person.toString =  () => 'person';
 
     env = setupStore({
+      adapter: DS.JSONAPIAdapter,
       person: Person
     });
     store = env.store;
@@ -567,6 +569,52 @@ test('supports pushedData in root.deleted.uncommitted', function(assert) {
   });
 });
 
+test('supports pushedData in root.deleted.saved', function(assert) {
+  let { adapter } = env;
+
+  adapter.shouldBackgroundReloadRecord = () => false;
+  adapter.deleteRecord = () => {
+    return Ember.RSVP.resolve();
+  };
+
+  let record = run(() => store.push({
+    data: {
+      type: 'person',
+      id: '1',
+      attributes: {
+        isArchived: false
+      }
+    }
+  }));
+
+  run(() => {
+    record.destroyRecord().then(() => {
+      let currentState = record._internalModel.currentState;
+
+      assert.ok(currentState.stateName === 'root.deleted.saved',
+        'record is in a persisted deleted state');
+      assert.equal(get(record, 'isDeleted'), true);
+      assert.ok(store.peekRecord('person', '1') !== null, 'the deleted person is not removed from store (no unload called)');
+    });
+  });
+
+  run(() => {
+    try {
+      store.push({
+        data: {
+          type: 'person',
+          id: '1',
+          attributes: {
+            isArchived: true
+          }
+        }
+      })
+    } catch (e) {
+      assert.ok(false, e);
+    }
+  });
+});
+
 test('currentState is accessible when the record is created', function(assert) {
   let hash = {
     data: {