diff --git a/tests/test_who.py b/tests/test_who.py
new file mode 100644
index 00000000..c8c443e6
--- /dev/null
+++ b/tests/test_who.py
@@ -0,0 +1,88 @@
+import os
+import json
+import unittest
+import jc.parsers.who
+
+THIS_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+class MyTests(unittest.TestCase):
+
+    def setUp(self):
+        # input
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/centos-7.7/who.out'), 'r') as f:
+            self.centos_7_7_who = f.read()
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/ubuntu-18.04/who.out'), 'r') as f:
+            self.ubuntu_18_4_who = f.read()
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/osx-10.14.6/who.out'), 'r') as f:
+            self.osx_10_14_6_who = f.read()
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/centos-7.7/who-a.out'), 'r') as f:
+            self.centos_7_7_who_a = f.read()
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/ubuntu-18.04/who-a.out'), 'r') as f:
+            self.ubuntu_18_4_who_a = f.read()
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/osx-10.14.6/who-a.out'), 'r') as f:
+            self.osx_10_14_6_who_a = f.read()
+
+        # output
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/centos-7.7/who.json'), 'r') as f:
+            self.centos_7_7_who_json = json.loads(f.read())
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/ubuntu-18.04/who.json'), 'r') as f:
+            self.ubuntu_18_4_who_json = json.loads(f.read())
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/osx-10.14.6/who.json'), 'r') as f:
+            self.osx_10_14_6_who_json = json.loads(f.read())
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/centos-7.7/who-a.json'), 'r') as f:
+            self.centos_7_7_who_a_json = json.loads(f.read())
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/ubuntu-18.04/who-a.json'), 'r') as f:
+            self.ubuntu_18_4_who_a_json = json.loads(f.read())
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/osx-10.14.6/who-a.json'), 'r') as f:
+            self.osx_10_14_6_who_a_json = json.loads(f.read())
+
+    def test_who_centos_7_7(self):
+        """
+        Test 'who' on Centos 7.7
+        """
+        self.assertEqual(jc.parsers.who.parse(self.centos_7_7_who, quiet=True), self.centos_7_7_who_json)
+
+    def test_who_ubuntu_18_4(self):
+        """
+        Test 'who' on Ubuntu 18.4
+        """
+        self.assertEqual(jc.parsers.who.parse(self.ubuntu_18_4_who, quiet=True), self.ubuntu_18_4_who_json)
+
+    def test_who_osx_10_14_6(self):
+        """
+        Test 'who' on OSX 10.14.6
+        """
+        self.assertEqual(jc.parsers.who.parse(self.osx_10_14_6_who, quiet=True), self.osx_10_14_6_who_json)
+
+    def test_who_a_centos_7_7(self):
+        """
+        Test 'who -a' on Centos 7.7
+        """
+        self.assertEqual(jc.parsers.who.parse(self.centos_7_7_who_a, quiet=True), self.centos_7_7_who_a_json)
+
+    def test_who_a_ubuntu_18_4(self):
+        """
+        Test 'who -a' on Ubuntu 18.4
+        """
+        self.assertEqual(jc.parsers.who.parse(self.ubuntu_18_4_who_a, quiet=True), self.ubuntu_18_4_who_a_json)
+
+    def test_who_a_osx_10_14_6(self):
+        """
+        Test 'who -a' on OSX 10.14.6
+        """
+        self.assertEqual(jc.parsers.who.parse(self.osx_10_14_6_who_a, quiet=True), self.osx_10_14_6_who_a_json)
+
+
+if __name__ == '__main__':
+    unittest.main()