Add Rugged calls to performance bar

This will help diagnose the source of excessive I/O from Rugged
calls. To implement this, we need to obtain the full list of arguments
sent to each request method.

1 files changed, 37 insertions, 0 deletions

diff --git a/spec/lib/peek/views/rugged_spec.rb b/spec/lib/peek/views/rugged_spec.rb
new file mode 100644
index 00000000000..0fc75043df8
--- /dev/null
+++ b/spec/lib/peek/views/rugged_spec.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Peek::Views::Rugged, :request_store do
+  subject { described_class.new }
+
+  let(:project) { create(:project) }
+
+  before do
+    allow(Gitlab::RuggedInstrumentation).to receive(:peek_enabled?).and_return(true)
+  end
+
+  it 'returns aggregated results' do
+    ::Gitlab::RuggedInstrumentation.query_time += 1.234
+    ::Gitlab::RuggedInstrumentation.increment_query_count
+    ::Gitlab::RuggedInstrumentation.increment_query_count
+
+    ::Gitlab::RuggedInstrumentation.add_call_details(feature: :rugged_test,
+                                                     args: [project.repository.raw, 'HEAD'],
+                                                     duration: 0.123)
+    ::Gitlab::RuggedInstrumentation.add_call_details(feature: :rugged_test2,
+                                                     args: [project.repository.raw, 'refs/heads/master'],
+                                                     duration: 0.456)
+
+    expect(subject.duration).to be_within(0.00001).of(1.234)
+    expect(subject.calls).to eq(2)
+
+    results = subject.results
+    expect(results[:calls]).to eq(2)
+    expect(results[:duration]).to eq('1234.00ms')
+    expect(results[:details].count).to eq(2)
+
+    expect(results[:details][0][:args]).to eq([project.repository.raw.to_s, "refs/heads/master"])
+    expect(results[:details][1][:args]).to eq([project.repository.raw.to_s, "HEAD"])
+  end
+end