add centos 7.7 finger tests

tests/fixtures/centos-7.7/finger.json

@@ -0,0 +1 @@
+[{"login":"kbrazil","name":"kbrazil","tty":"tty1","idle":"1","login_time":"Apr  6 11:12","tty_writeable":true,"idle_minutes":1,"idle_hours":0,"idle_days":0,"total_idle_minutes":1},{"login":"kbrazil","name":"kbrazil","tty":"pts/0","idle":null,"login_time":"Apr  6 11:14","details":"(kbrazil-mac.attlocal.net)","tty_writeable":true,"idle_minutes":0,"idle_hours":0,"idle_days":0,"total_idle_minutes":0}]

tests/fixtures/centos-7.7/finger.out

@@ -0,0 +1,3 @@
+Login     Name       Tty      Idle  Login Time   Office     Office Phone   Host
+kbrazil   kbrazil    tty1        1  Apr  6 11:12           
+kbrazil   kbrazil    pts/0          Apr  6 11:14                           (kbrazil-mac.attlocal.net)

tests/test_finger.py

@@ -0,0 +1,47 @@
+import os
+import json
+import unittest
+import jc.parsers.finger
+
+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/finger.out'), 'r', encoding='utf-8') as f:
+            self.centos_7_7_finger = f.read()
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/ubuntu-18.04/finger.out'), 'r', encoding='utf-8') as f:
+            self.ubuntu_18_4_finger = f.read()
+
+        # output
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/centos-7.7/finger.json'), 'r', encoding='utf-8') as f:
+            self.centos_7_7_finger_json = json.loads(f.read())
+
+        with open(os.path.join(THIS_DIR, os.pardir, 'tests/fixtures/ubuntu-18.04/finger.json'), 'r', encoding='utf-8') as f:
+            self.ubuntu_18_4_finger_json = json.loads(f.read())
+
+
+    def test_finger_nodata(self):
+        """
+        Test plain 'finger' with no data
+        """
+        self.assertEqual(jc.parsers.finger.parse('', quiet=True), [])
+
+    def test_finger_centos_7_7(self):
+        """
+        Test plain 'finger' on Centos 7.7
+        """
+        self.assertEqual(jc.parsers.finger.parse(self.centos_7_7_finger, quiet=True), self.centos_7_7_finger_json)
+
+    def test_finger_ubuntu_18_4(self):
+        """
+        Test plain 'finger' on Ubuntu 18.4
+        """
+        self.assertEqual(jc.parsers.finger.parse(self.ubuntu_18_4_finger, quiet=True), self.ubuntu_18_4_finger_json)
+
+
+if __name__ == '__main__':
+    unittest.main()