diff --git a/test/head/head.test.js b/test/head/head.test.js
index f871184cf..7cf67cd9c 100644
--- a/test/head/head.test.js
+++ b/test/head/head.test.js
@@ -4,11 +4,18 @@ const head = require('./head.js');
 test('Testing head', (t) => {
 	//For more information on all the methods supported by tape
 	//Please go to https://github.com/substack/tape
-	t.true(typeof head === 'function', 'head is a Function');
-	t.equal(head([1, 2, 3]), 1, "Returns head of a list");
-	//t.deepEqual(head(args..), 'Expected');
-	//t.equal(head(args..), 'Expected');
-	//t.false(head(args..), 'Expected');
-	//t.throws(head(args..), 'Expected');
+  t.true(typeof head === 'function', 'head is a Function');
+  t.true(head({ a: 1234}) === undefined, 'head({ a: 1234}) returns undefined');
+  t.equal(head([1, 2, 3]), 1, "head([1, 2, 3]) returns 1");
+  t.equal(head({ 0: false}), false, 'head({ 0: false}) returns false');
+	t.equal(head('String'), 'S', 'head(String) returns S');
+  t.throws(() => head(null), 'head(null) throws an Error');
+  t.throws(() => head(undefined), 'head(undefined) throws an Error');
+  t.throws(() => head(), 'head() throws an Error');
+
+  let start = new Date().getTime();
+  head([1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 1122, 32124, 23232]);
+  let end = new Date().getTime();
+  t.true((end - start) < 2000, 'head([1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 1122, 32124, 23232]) takes less than 2s to run');
 	t.end();
 });
\ No newline at end of file