Add latest changes from gitlab-org/gitlab@16-7-stable-eev16.7.0-rc42

1 files changed, 62 insertions, 0 deletions

diff --git a/spec/lib/bitbucket/exponential_backoff_spec.rb b/spec/lib/bitbucket/exponential_backoff_spec.rb
new file mode 100644
index 00000000000..b52a83731f4
--- /dev/null
+++ b/spec/lib/bitbucket/exponential_backoff_spec.rb
@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Bitbucket::ExponentialBackoff, feature_category: :importers do
+  let(:service) { dummy_class.new }
+  let(:body) { 'test' }
+  let(:parsed_response) { instance_double(Net::HTTPResponse, body: body.to_json) }
+  let(:response) { double(Faraday::Response, body: body, parsed: parsed_response) }
+  let(:response_caller) { -> { response } }
+
+  let(:dummy_class) do
+    Class.new do
+      def logger
+        @logger ||= Logger.new(File::NULL)
+      end
+
+      def dummy_method(response_caller)
+        retry_with_exponential_backoff do
+          response_caller.call
+        end
+      end
+
+      include Bitbucket::ExponentialBackoff
+    end
+  end
+
+  subject(:execute) { service.dummy_method(response_caller) }
+
+  describe '.retry_with_exponential_backoff' do
+    let(:max_retries) { described_class::MAX_RETRIES }
+
+    context 'when the function succeeds on the first try' do
+      it 'calls the function once and returns its result' do
+        expect(response_caller).to receive(:call).once.and_call_original
+
+        expect(Gitlab::Json.parse(execute.parsed.body)).to eq(body)
+      end
+    end
+
+    context 'when the function response is an error' do
+      let(:error) { 'Rate limit for this resource has been exceeded' }
+
+      before do
+        stub_const("#{described_class.name}::INITIAL_DELAY", 0.0)
+        allow(Random).to receive(:rand).and_return(0.001)
+      end
+
+      it 'raises a RateLimitError if the maximum number of retries is exceeded' do
+        allow(response_caller).to receive(:call).and_raise(OAuth2::Error, error)
+
+        message = "Maximum number of retries (#{max_retries}) exceeded. #{error}"
+
+        expect do
+          execute
+        end.to raise_error(described_class::RateLimitError, message)
+
+        expect(response_caller).to have_received(:call).exactly(max_retries).times
+      end
+    end
+  end
+end