Initial commit

spec/trading/matching/market_order_spec.rb

@@ -0,0 +1,32 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+describe Matching::MarketOrder do
+  context 'initialize' do
+    it 'should not allow price attribute' do
+      expect { Matching.mock_market_order(type: :ask, price: '1.0'.to_d) }.to raise_error(Matching::OrderError)
+    end
+
+    it 'should only accept positive sum limit' do
+      expect { Matching.mock_market_order(type: :bid, locked: '0.0'.to_d) }.to raise_error(Matching::OrderError)
+    end
+  end
+
+  context '#fill' do
+    subject { Matching.mock_market_order(type: :bid, locked: '10.0'.to_d, volume: '2.0'.to_d) }
+
+    it 'should raise not enough volume error' do
+      expect { subject.fill('1.0'.to_d, '3.0'.to_d, '3.0'.to_d) }.to raise_error(Matching::NotEnoughVolume)
+    end
+
+    it 'should raise sum limit reached error' do
+      expect { subject.fill('11.0'.to_d, '1.0'.to_d, '11.0'.to_d) }.to raise_error(Matching::ExceedSumLimit)
+    end
+
+    it 'should also decrease volume and sum limit' do
+      subject.fill '6.0'.to_d, '1.0'.to_d, '6.0'.to_d
+      expect(subject.volume).to eq '1.0'.to_d
+      expect(subject.locked).to eq '4.0'.to_d
+    end
+  end
+end