#298: return an error in case of invalid command

test/test_get_sub_command.py

@@ -15,6 +15,8 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import unittest
+import os
+import pytest
 
 from topydo.Commands import get_subcommand
 from topydo.commands.AddCommand import AddCommand
@@ -410,5 +412,21 @@ def test_help(self):
         self.assertFalse(real_cmd)
         self.assertEqual(final_args, ['help', 'nonexisting'])
 
+    def test_invalidCommand(self):
+        os.system('topydo joker > test_file.txt')
+        test_file_name = str(open('test_file.txt').readlines())
+        self.assertIn('Error invalid command: joker :( Please try again. ', test_file_name )
+        os.remove('test_file.txt')
+
+    @pytest.fixture(autouse=True)
+    def _pass_fixtures(self, capsys):
+        self.capsys = capsys
+
+    def test_invalidCommand2(self):
+        get_subcommand(['helloworld'])
+        captured = self.capsys.readouterr()
+        self.assertEqual('Error invalid command: helloworld :( Please try again. \n', captured.out)
+
+
 if __name__ == '__main__':
     unittest.main()

topydo/Commands.py

@@ -151,6 +151,7 @@ def resolve_alias(p_alias, p_args):
             result = import_subcommand(f'help{subcommand}')
             args = []
         else:
+            print(f'Error invalid command: {subcommand} :( Please try again. ')
             p_command = config().default_command()
             if p_command in alias_map:
                 result, args = resolve_alias(p_command, args)