transferred Code Ocean from original repository to GitHub

db/seeds/fibonacci/exercise_spec_2.rb

@@ -0,0 +1,9 @@
+require './exercise'
+
+describe '#fibonacci' do
+  it 'works recursively' do
+    @n = 16
+    expect(self).to receive(:fibonacci).and_call_original.at_least(@n ** 2).times
+    fibonacci(@n)
+  end
+end