From 990d5ec5af9cea56812e952c3155a346876621cb Mon Sep 17 00:00:00 2001
From: Wes Bos <wesbos@gmail.com>
Date: Thu, 19 Apr 2018 11:16:53 -0400
Subject: custom assertion

---
 frontend/jest.setup.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'frontend/jest.setup.js')

diff --git a/frontend/jest.setup.js b/frontend/jest.setup.js
index 82edfc9..1783f17 100644
--- a/frontend/jest.setup.js
+++ b/frontend/jest.setup.js
@@ -2,3 +2,16 @@ import { configure } from 'enzyme';
 import Adapter from 'enzyme-adapter-react-16';
 
 configure({ adapter: new Adapter() });
+
+expect.extend({
+  toBeCalledWithVariables(received, argument) {
+    const receivedVariables = received.mock.calls[0][0].variables;
+    const pass = this.equals(receivedVariables, argument);
+    const message = () =>
+      `expected ${this.utils.printExpected(argument)} to match ${this.utils.printReceived(
+        receivedVariables
+      )}`;
+
+    return { message, pass };
+  },
+});
-- 
cgit v1.3