add some tests, commands and bus class

added a couple of lower tests.

add some string tests to higher tests.

added bus class

add higher commands show, hide, shutdown, restart, version and type

vban_cmd/meta.py

@@ -1,7 +1,7 @@
 from .errors import VMCMDErrors
 
 def strip_output_prop(param):
-    """ A channel prop. """
+    """ A strip output prop. """
     def fget(self):
         data = self.getter()
         return not int.from_bytes(data.stripstate[self.index], 'little') & getattr(self._modes, f'_bus{param.lower()}') == 0
@@ -9,4 +9,15 @@ def strip_output_prop(param):
         if not isinstance(val, bool) and val not in (0, 1):
             raise VMCMDErrors(f'{param} is a boolean parameter')
         self.setter(param, 1 if val else 0)
-    return property(fget, fset)
+    return property(fget, fset)
+
+def bus_output_prop(param):
+    """ A bus output prop. """
+    def fget(self):
+        data = self.getter()
+        return not int.from_bytes(data.busstate[self.index], 'little') & getattr(self._modes, f'_bus{param.lower()}') == 0
+    def fset(self, val):
+        if not isinstance(val, bool) and val not in (0, 1):
+            raise VMCMDErrors(f'{param} is a boolean parameter')
+        self.setter(param, 1 if val else 0)
+    return property(fget, fset)