From 42f9483edf1091855cc9c7d3a100ef02f6368ad3 Mon Sep 17 00:00:00 2001
From: Sergej Shafarenka <beworker@gmail.com>
Date: Tue, 5 Sep 2017 13:09:04 +0200
Subject: [PATCH] Adding a compare function to be used in expected object
 template (#66)

* Adding compare function to be used in expected object template

* Adding compare function example to README.md
---
 test/unit/chai-subset.spec.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/test/unit/chai-subset.spec.js b/test/unit/chai-subset.spec.js
index 3fc4e282..042067d3 100644
--- a/test/unit/chai-subset.spec.js
+++ b/test/unit/chai-subset.spec.js
@@ -126,6 +126,20 @@ describe('circular objects', function() {
 	});
 });
 
+describe('object with compare function', function() {
+	it('should pass when function returns true', function () {
+		expect({a: 5}).to.containSubset({a: a => a});
+	});
+
+	it('should fail when function returns false', function () {
+		expect({a: 5}).to.not.containSubset({a: a => !a});
+	});
+
+	it('should pass for function with no arguments', function () {
+		expect({a: 5}).to.containSubset({a: () => true});
+	});
+});
+
 describe('comparison of non objects', function () {
 	it('should fail if actual subset is null', function () {
 		expect(null).to.not.containSubset({a: 1});