#26 add rspec

spec/api/qrcode_spec.rb

@@ -14,5 +14,11 @@ describe WeixinAuthorize::Api::Qrcode do
     expect(response.code).to eq(WeixinAuthorize::OK_CODE)
     expect(response.result.keys).to eq(["ticket"])
   end
-
+  
+  it "#return_qr_url" do
+    response = $client.create_qr_limit_scene("1234")
+    qr_url = $client.qr_code_url(response.result["ticket"])
+    expect(response.code).to eq(WeixinAuthorize::OK_CODE)
+    expect(qr_url).to include("mp.weixin.qq.com")
+  end
 end