1 files changed, 60 insertions, 0 deletions
diff --git a/spec/lib/error_tracking/sentry_client/pagination_parser_spec.rb b/spec/lib/error_tracking/sentry_client/pagination_parser_spec.rb
new file mode 100644
index 00000000000..c4b771d5b93
--- /dev/null
+++ b/spec/lib/error_tracking/sentry_client/pagination_parser_spec.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+
+RSpec.describe ErrorTracking::SentryClient::PaginationParser do
+  describe '.parse' do
+    subject { described_class.parse(headers) }
+
+    context 'when headers do not have "link" param' do
+      let(:headers) { {} }
+
+      it 'returns empty hash' do
+        is_expected.to eq({})
+      end
+    end
+
+    context 'when headers.link has previous and next pages' do
+      let(:headers) do
+        {
+          'link' => '<https://sentrytest.gitlab.com>; rel="previous"; results="true"; cursor="1573556671000:0:1", <https://sentrytest.gitlab.com>; rel="next"; results="true"; cursor="1572959139000:0:0"'
+        }
+      end
+
+      it 'returns info about both pages' do
+        is_expected.to eq(
+          'previous' => { 'cursor' => '1573556671000:0:1' },
+          'next' => { 'cursor' => '1572959139000:0:0' }
+        )
+      end
+    end
+
+    context 'when headers.link has only next page' do
+      let(:headers) do
+        {
+          'link' => '<https://sentrytest.gitlab.com>; rel="previous"; results="false"; cursor="1573556671000:0:1", <https://sentrytest.gitlab.com>; rel="next"; results="true"; cursor="1572959139000:0:0"'
+        }
+      end
+
+      it 'returns only info about the next page' do
+        is_expected.to eq(
+          'next' => { 'cursor' => '1572959139000:0:0' }
+        )
+      end
+    end
+
+    context 'when headers.link has only previous page' do
+      let(:headers) do
+        {
+          'link' => '<https://sentrytest.gitlab.com>; rel="previous"; results="true"; cursor="1573556671000:0:1", <https://sentrytest.gitlab.com>; rel="next"; results="false"; cursor="1572959139000:0:0"'
+        }
+      end
+
+      it 'returns only info about the previous page' do
+        is_expected.to eq(
+          'previous' => { 'cursor' => '1573556671000:0:1' }
+        )
+      end
+    end
+  end
+end