transferred Code Ocean from original repository to GitHub

db/seeds/fibonacci/exercise_spec_1.rb

@@ -0,0 +1,15 @@
+require './exercise'
+
+describe '#fibonacci' do
+  it 'is defined' do
+    expect { method(:fibonacci) }.not_to raise_error
+  end
+
+  it 'has the correct arity' do
+    expect(method(:fibonacci).arity).to eq(1)
+  end
+
+  it 'returns a number' do
+    expect(fibonacci(1)).to be_an(Integer)
+  end
+end