Move alias test to core

Author: Erotemic

jsonargparse_tests/test_alias.py

@@ -1223,5 +1223,22 @@ def test_add_multiple_config_arguments_error(self):
             parser.add_argument('--cfg2', action=ActionConfigFile)
 
 
+    def test_parser_alias(self):
+        import jsonargparse
+
+        # Create a parser where --bar is an alias for --foo
+        parser = jsonargparse.ArgumentParser()
+        parser.add_argument('--foo', '--bar')
+
+        parsed = parser.parse_string('foo: "aaa"')
+        assert parsed.foo == 'aaa'
+
+        parsed = parser.parse_string('bar: "bbb"')
+        assert parsed.foo == 'bbb'
+
+        parsed = parser.parse_args(['--bar', 'ccc'])
+        assert parsed.foo == 'ccc'
+
+
 if __name__ == '__main__':
     unittest.main(verbosity=2)