fix the spec so it fails before applying the fix

spec/lib/gitlab/import_export/project.light.json

@@ -63,6 +63,18 @@
       "last_edited_at": null,
       "last_edited_by_id": null,
       "group_milestone_id": null,
+      "milestone": {
+        "id": 1,
+        "title": "test milestone",
+        "project_id": 8,
+        "description": "test milestone",
+        "due_date": null,
+        "created_at": "2016-06-14T15:02:04.415Z",
+        "updated_at": "2016-06-14T15:02:04.415Z",
+        "state": "active",
+        "iid": 1,
+        "group_id": null
+      },
       "label_links": [
         {
           "id": 11,

spec/lib/gitlab/import_export/project_tree_restorer_spec.rb

@@ -24,7 +24,7 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
 
     context 'JSON' do
       it 'restores models based on JSON' do
-        expect(@restored_project_json).to be true
+        expect(@restored_project_json).to be_truthy
       end
 
       it 'restore correct project features' do
@@ -203,7 +203,7 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
 
           restored_project_json
 
-          expect(shared.errors.first).to be_nil
+          expect(shared.errors).to be_empty
         end
       end
     end
@@ -212,7 +212,7 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
       it 'restores project json correctly' do
         create(:ci_build, token: 'abcd')
 
-        expect(restored_project_json).to be true
+        expect(restored_project_json).to be_truthy
       end
     end
 
@@ -233,8 +233,8 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
       end
 
       it 'correctly restores project' do
-        expect(restored_project_json).to be_truthy
         expect(shared.errors).to be_empty
+        expect(restored_project_json).to be_truthy
       end
 
       it 'has labels' do