diff --git a/tests/mithril-tests.js b/tests/mithril-tests.js
index 77f27497..3df6dd0d 100644
--- a/tests/mithril-tests.js
+++ b/tests/mithril-tests.js
@@ -23,6 +23,8 @@ function testMithril(mock) {
 	test(function() {return m("div", [{foo: "bar"}])}) //as long as it doesn't throw errors, it's fine
 	test(function() {return m("svg", [m("g")])})
 	test(function() {return m("svg", [m("a[href='http://google.com']")])})
+	test(function() {return m(".foo", {class: "bar"}).attrs.class == "foo bar"})
+	test(function() {return m(".foo", {className: "bar"}).attrs.className == "foo bar"})
 
 	//m.module
 	test(function() {