Add pinout command-line tool

tests/cli/test_pinout.py

@@ -0,0 +1,40 @@
+from __future__ import (
+    unicode_literals,
+    absolute_import,
+    print_function,
+    division,
+    )
+str = type('')
+
+
+import pytest
+
+import cli.pinout as pinout
+
+
+def test_args_incorrect():
+    with pytest.raises(SystemExit) as ex:
+        pinout.parse_args(['--nonexistentarg'])
+    assert ex.value.code == 2
+
+
+def test_args_color():
+    args = pinout.parse_args([])
+    assert args.color is None
+    args = pinout.parse_args(['--color'])
+    assert args.color is True
+    args = pinout.parse_args(['--monochrome'])
+    assert args.color is False
+
+
+def test_args_revision():
+    args = pinout.parse_args(['--revision', '000d'])
+    assert args.revision == '000d'
+
+
+def test_help(capsys):
+    with pytest.raises(SystemExit) as ex:
+        pinout.parse_args(['--help'])
+    out, err = capsys.readouterr()
+    assert 'GPIO pinout' in out
+    assert ex.value.code == 0