Create basic tests for generate_magic_commands()

tests/test_cli.py

@@ -0,0 +1,14 @@
+import os
+import unittest
+import jc.cli
+
+
+class MyTests(unittest.TestCase):
+    def test_cli(self):
+        commands = {
+            "jc -p systemctl list-sockets": "systemctl list-sockets | jc --systemctl-ls -p",
+            "jc -p systemctl list-unit-files": "systemctl list-unit-files | jc --systemctl-luf -p",
+        }
+
+        for command, expected_command in commands.items():
+            self.assertEquals(jc.cli.generate_magic_command(command.split(" "))[1], expected_command)