1 files changed, 53 insertions, 0 deletions
diff --git a/spec/lib/gitlab/import_export/project/sample/date_calculator_spec.rb b/spec/lib/gitlab/import_export/project/sample/date_calculator_spec.rb
new file mode 100644
index 00000000000..82f59245519
--- /dev/null
+++ b/spec/lib/gitlab/import_export/project/sample/date_calculator_spec.rb
@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::ImportExport::Project::Sample::DateCalculator do
+  describe '#closest date to average' do
+    subject { described_class.new(dates).closest_date_to_average }
+
+    context 'when dates are empty' do
+      let(:dates) { [] }
+
+      it { is_expected.to be_nil }
+    end
+
+    context 'when dates are not empty' do
+      let(:dates) { [[nil, '2020-01-01 00:00:00 +0000'], [nil, '2021-01-01 00:00:00 +0000'], [nil, '2022-01-01 23:59:59 +0000']] }
+
+      it { is_expected.to eq(Time.zone.parse('2021-01-01 00:00:00 +0000')) }
+    end
+  end
+
+  describe '#calculate_by_closest_date_to_average' do
+    let(:calculator) { described_class.new([]) }
+    let(:date) { Time.current }
+
+    subject { calculator.calculate_by_closest_date_to_average(date) }
+
+    context 'when average date is nil' do
+      before do
+        allow(calculator).to receive(:closest_date_to_average).and_return(nil)
+      end
+
+      it { is_expected.to eq(date) }
+    end
+
+    context 'when average date is in the past' do
+      before do
+        allow(calculator).to receive(:closest_date_to_average).and_return(date - 365.days)
+        allow(Time).to receive(:current).and_return(date)
+      end
+
+      it { is_expected.to eq(date + 365.days) }
+    end
+
+    context 'when average date is in the future' do
+      before do
+        allow(calculator).to receive(:closest_date_to_average).and_return(date + 10.days)
+      end
+
+      it { is_expected.to eq(date) }
+    end
+  end
+end