1 files changed, 8 insertions, 3 deletions
diff --git a/spec/lib/gitlab/import_export/json/ndjson_writer_spec.rb b/spec/lib/gitlab/import_export/json/ndjson_writer_spec.rb
index 452d63d548e..486d179ae05 100644
--- a/spec/lib/gitlab/import_export/json/ndjson_writer_spec.rb
+++ b/spec/lib/gitlab/import_export/json/ndjson_writer_spec.rb
@@ -2,7 +2,7 @@
 
 require "spec_helper"
 
-RSpec.describe Gitlab::ImportExport::Json::NdjsonWriter do
+RSpec.describe Gitlab::ImportExport::Json::NdjsonWriter, feature_category: :importers do
   include ImportExport::CommonUtil
 
   let(:path) { "#{Dir.tmpdir}/ndjson_writer_spec/tree" }
@@ -35,13 +35,18 @@ RSpec.describe Gitlab::ImportExport::Json::NdjsonWriter do
     end
 
     context "when single relation is already serialized" do
-      it "raise exception" do
+      it "appends to the existing file" do
         values = [{ "key" => "value_1", "key_1" => "value_1" }, { "key" => "value_2", "key_1" => "value_2" }]
         relation = "relation"
         file_path = File.join(path, exportable_path, "#{relation}.ndjson")
         subject.write_relation(exportable_path, relation, values[0])
 
-        expect { subject.write_relation(exportable_path, relation, values[1]) }.to raise_exception("The #{file_path} already exist")
+        expect { subject.write_relation(exportable_path, relation, values[1]) }.not_to raise_exception
+
+        file_data = File.read(file_path)
+
+        expect(file_data).to include(values[0].to_json)
+        expect(file_data).to include(values[1].to_json)
       end
     end
   end