Added test

tests/rules/test_pacman_invalid_option.py

@@ -0,0 +1,19 @@
+from thefuck.rules.pip_install import match, get_new_command
+from thefuck.types import Command
+
+
+def test_match():
+    right_response = """
+community/shared_meataxe 1.0-3
+    A set of programs for working with matrix representations over finite fields
+    """
+    assert not match(Command('pacman -Ss meat', right_response))
+
+    wrong_response = """
+error: invalid option '-s'
+    """
+    assert match(Command('pacman -ss meat', wrong_response))
+
+def test_get_new_command():
+    assert get_new_command(Command('pacman -ss meat', '')) == 'pacman -Ss meat'
+    assert get_new_command(Command('pacman -s meat', '')) == 'pacman -S meat'