add test to institution importer

test/fixtures/learning_objects.yml

@@ -44,4 +44,12 @@ institution_lo:
   name: 'Institution Object 1'
   description: 'Testing'
   author: 'Mauricio'
-  publisher: ufpr (Institution)
\ No newline at end of file
+  publisher: ufpr (Institution)
+
+lo_complete:
+  name: 'Institution Object 1'
+  description: 'Testing'
+  author: 'Mauricio'
+  id_dspace: '1'
+  object_type: image
+  language: portuguese

test/services/institution_importer_test.rb

+require 'test_helper'
+
+class InstitutionImporterTest < ActiveSupport::TestCase
+
+  test 'importing learning object with metadata publisher = nil' do
+    importer = InstitutionImporter.new()
+    lo = learning_objects(:lo_complete)
+    importer.items = [lo]
+    importer.import
+    assert_not_nil Institution.find_by_name(lo.publisher.name)
+  end
+
+end