1 files changed, 75 insertions, 0 deletions
diff --git a/spec/lib/gitlab/import_export/project/exported_relations_merger_spec.rb b/spec/lib/gitlab/import_export/project/exported_relations_merger_spec.rb
new file mode 100644
index 00000000000..a781139acab
--- /dev/null
+++ b/spec/lib/gitlab/import_export/project/exported_relations_merger_spec.rb
@@ -0,0 +1,75 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::ImportExport::Project::ExportedRelationsMerger do
+  let(:export_job) { create(:project_export_job) }
+
+  let(:shared) { Gitlab::ImportExport::Shared.new(export_job.project) }
+
+  before do
+    create(:project_relation_export_upload,
+      relation_export: create(:project_relation_export, relation: 'project', project_export_job: export_job),
+      export_file: fixture_file_upload("spec/fixtures/gitlab/import_export/project.tar.gz")
+    )
+
+    create(:project_relation_export_upload,
+      relation_export: create(:project_relation_export, relation: 'labels', project_export_job: export_job),
+      export_file: fixture_file_upload("spec/fixtures/gitlab/import_export/labels.tar.gz")
+    )
+
+    create(:project_relation_export_upload,
+      relation_export: create(:project_relation_export, relation: 'uploads', project_export_job: export_job),
+      export_file: fixture_file_upload("spec/fixtures/gitlab/import_export/uploads.tar.gz")
+    )
+  end
+
+  describe '#save' do
+    subject(:service) { described_class.new(export_job: export_job, shared: shared) }
+
+    it 'downloads, extracts, and merges all files into export_path' do
+      Dir.mktmpdir do |dirpath|
+        allow(shared).to receive(:export_path).and_return(dirpath)
+
+        result = service.save
+
+        expect(result).to eq(true)
+        expect(Dir.glob("#{dirpath}/**/*")).to match_array(
+          [
+            "#{dirpath}/project",
+            "#{dirpath}/project/project.json",
+            "#{dirpath}/project/labels.ndjson",
+            "#{dirpath}/uploads",
+            "#{dirpath}/uploads/70edb596c34ad7795baa6a0f0aa03d44",
+            "#{dirpath}/uploads/70edb596c34ad7795baa6a0f0aa03d44/file1.txt",
+            "#{dirpath}/uploads/c8c93c6f546b002cbce4cb8d05d0dfb8",
+            "#{dirpath}/uploads/c8c93c6f546b002cbce4cb8d05d0dfb8/file2.txt"
+          ]
+        )
+      end
+    end
+
+    context 'when exception occurs' do
+      before do
+        create(:project_relation_export, relation: 'releases', project_export_job: export_job)
+        create(:project_relation_export, relation: 'issues', project_export_job: export_job)
+      end
+
+      it 'registers the exception messages and returns false' do
+        Dir.mktmpdir do |dirpath|
+          allow(shared).to receive(:export_path).and_return(dirpath)
+
+          result = service.save
+
+          expect(result).to eq(false)
+          expect(shared.errors).to match_array(
+            [
+              "undefined method `export_file' for nil:NilClass",
+              "undefined method `export_file' for nil:NilClass"
+            ]
+          )
+        end
+      end
+    end
+  end
+end