From d4168da1d6e732bdebebc90f2a0a7ae988edf63f Mon Sep 17 00:00:00 2001
From: Bruno Queiros <brunoofq@gmail.com>
Date: Wed, 9 Dec 2015 23:13:21 -0200
Subject: [PATCH 1/2] add contains assert

---
 lib/assert.js  |  4 ++++
 test/assert.js | 16 ++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/lib/assert.js b/lib/assert.js
index 5bd84e981..9e766c6bb 100644
--- a/lib/assert.js
+++ b/lib/assert.js
@@ -120,4 +120,8 @@ x.ifError = x.error = function (err, msg) {
 	test(!err, create(err, 'Error', '!==', msg, x.ifError));
 };
 
+x.contains = function (val, expected, msg) {
+	test(val.indexOf(expected) > -1, create(val, expected, 'indexOf', msg, x.contains));
+};
+
 require('./enhance-assert')(x);
diff --git a/test/assert.js b/test/assert.js
index 83561005b..b6b391582 100644
--- a/test/assert.js
+++ b/test/assert.js
@@ -238,3 +238,19 @@ test('.same() should not mask RangeError from underlying assert', function (t) {
 
 	t.end();
 });
+
+test('.contains()', function (t) {
+	t.doesNotThrow(function () {
+		assert.contains('Hello World!', 'Hello');
+	});
+
+	t.doesNotThrow(function () {
+		assert.contains('Hello World!', 'lo Wor');
+	});
+
+	t.throws(function () {
+		assert.contains('Hello World!', 'Planet');
+	});
+
+	t.end();
+});

From 46935e38376b7de2abe92c8b597bb2d04f1884f3 Mon Sep 17 00:00:00 2001
From: Bruno Queiros <brunoofq@gmail.com>
Date: Wed, 9 Dec 2015 23:23:17 -0200
Subject: [PATCH 2/2] update readme.md with contains assert

---
 readme.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/readme.md b/readme.md
index 37feaa467..79636b4a6 100644
--- a/readme.md
+++ b/readme.md
@@ -570,6 +570,10 @@ Assert that `regex` matches `contents`.
 
 Assert that `error` is falsy.
 
+### .contains(value, expected, [message])
+
+Assert that `value` contains `expected`.
+
 
 ## Enhanced asserts
 
@@ -695,4 +699,3 @@ Concurrency is not parallelism. It enables parallelism. [Learn more.](http://sta
 	<br>
 	<br>
 </div>
-