diff --git a/tests/test_focker.py b/tests/test_focker.py
new file mode 100644
index 0000000..2561d9c
--- /dev/null
+++ b/tests/test_focker.py
@@ -0,0 +1,107 @@
+from focker.focker import *
+
+
+def test_parser_bootstrap():
+    parser = create_parser()
+
+    args = parser.parse_args(['bootstrap', '--dry-run', '--tags', 'a', 'b', 'c'])
+    assert args.func == command_bootstrap
+    assert args.tags == ['a', 'b', 'c']
+    assert args.dry_run
+
+
+def test_parser_image():
+    parser = create_parser()
+
+    args = parser.parse_args(['image', 'build', '.', '--squeeze', '--tags', 'a', 'b', 'c'])
+    assert args.func == command_image_build
+    assert args.focker_dir == '.'
+    assert args.tags == ['a', 'b', 'c']
+    assert args.squeeze
+
+    args = parser.parse_args(['image', 'tag', 'deadbee', 'a', 'b', 'c'])
+    assert args.func == command_image_tag
+    assert args.reference == 'deadbee'
+    assert args.tags == ['a', 'b', 'c']
+
+    args = parser.parse_args(['image', 'untag', 'a', 'b', 'c'])
+    assert args.func == command_image_untag
+    assert args.tags == ['a', 'b', 'c']
+
+    args = parser.parse_args(['image', 'list', '--full-sha256', '--tagged-only'])
+    assert args.func == command_image_list
+    assert args.full_sha256
+    assert args.tagged_only
+
+    args = parser.parse_args(['image', 'prune'])
+    assert args.func == command_image_prune
+
+    args = parser.parse_args(['image', 'remove', 'a', '--remove-dependents', '--force'])
+    assert args.func == command_image_remove
+    assert args.reference == 'a'
+    assert args.remove_dependents
+    assert args.force
+
+
+def test_parser_jail(monkeypatch):
+    parser = create_parser()
+
+    counter = [0]
+    def count_calls(fun, counter):
+        def inner(*args, **kwargs):
+            counter[0] += 1
+            return fun(*args, **kwargs)
+        return inner
+    monkeypatch.setattr(parser, 'parse_args', count_calls(parser.parse_args, counter))
+
+    args = parser.parse_args(['jail', 'create', 'freebsd-latest', '--command', '/test-command', '--tags', 'a', 'b', 'c', '--env', 'd:1', 'e:2', '--mounts', 'mount-A:/a', 'mount-B:/b', '--hostname', 'xyz'])
+    assert args.func == command_jail_create
+    assert args.command == '/test-command'
+    assert args.tags == ['a', 'b', 'c']
+    assert args.env == ['d:1', 'e:2']
+    assert args.mounts == ['mount-A:/a', 'mount-B:/b']
+    assert args.hostname == 'xyz'
+
+    args = parser.parse_args(['jail', 'start', 'jail-A'])
+    assert args.func == command_jail_start
+    assert args.reference == 'jail-A'
+
+    args = parser.parse_args(['jail', 'stop', 'jail-A'])
+    assert args.func == command_jail_stop
+    assert args.reference == 'jail-A'
+
+    args = parser.parse_args(['jail', 'remove', 'jail-A', '--force'])
+    assert args.func == command_jail_remove
+    assert args.reference == 'jail-A'
+    assert args.force
+
+    args = parser.parse_args(['jail', 'exec', 'jail-A', '/bin/sh', '-c', 'ls', '-al'])
+    assert args.func == command_jail_exec
+    assert args.reference == 'jail-A'
+    assert args.command == ['/bin/sh', '-c', 'ls', '-al']
+
+    args = parser.parse_args(['jail', 'oneshot', '--env', 'd:1', 'e:2', '--mounts', 'mount-A:/a', 'mount-B:/b', '--', 'image-A', '/bin/sh', '-c', 'ls', '-al'])
+    assert args.func == command_jail_oneshot
+    assert args.image == 'image-A'
+    assert args.env == ['d:1', 'e:2']
+    assert args.mounts == ['mount-A:/a', 'mount-B:/b']
+    assert args.command == ['/bin/sh', '-c', 'ls', '-al']
+
+    args = parser.parse_args(['jail', 'list', '--full-sha256'])
+    assert args.func == command_jail_list
+    assert args.full_sha256
+
+    args = parser.parse_args(['jail', 'tag', 'deadbee', 'a', 'b', 'c'])
+    assert args.func == command_jail_tag
+    assert args.reference == 'deadbee'
+    assert args.tags == ['a', 'b', 'c']
+
+    args = parser.parse_args(['jail', 'untag', 'a', 'b', 'c'])
+    assert args.func == command_jail_untag
+    assert args.tags == ['a', 'b', 'c']
+
+    args = parser.parse_args(['jail', 'prune', '--force'])
+    assert args.func == command_jail_prune
+    assert args.force
+
+    assert counter[0] == 10