Add a test for config triggers (#1225)

* Split config.py into lib/ and gdblib/

* Add test for config triggers

tests/test_triggers.py

@@ -0,0 +1,45 @@
+from unittest import mock
+
+import gdb
+
+from pwndbg.gdblib import config
+
+
+def set_show(param_name, value):
+    gdb.execute("show %s" % param_name)
+    gdb.execute("set %s %s" % (param_name, value))
+    gdb.execute("show %s" % param_name)
+
+
+def test_triggers():
+    for param_name, triggers in config.triggers.items():
+        p = getattr(config, param_name.replace("-", "_"))
+
+        mock_triggers = []
+        for trigger in triggers:
+            mock_triggers.append(mock.Mock(side_effect=trigger))
+
+        orig_triggers = config.triggers[param_name]
+        config.triggers[param_name] = mock_triggers
+
+        if p.value is True:
+            set_show(param_name, "off")
+        elif p.value is False:
+            set_show(param_name, "on")
+        elif isinstance(p.value, int):
+            set_show(param_name, 0)
+            set_show(param_name, 1)
+            set_show(param_name, -1)
+        elif isinstance(p.value, str):
+            set_show(param_name, "")
+            set_show(param_name, "some invalid text")
+            set_show(param_name, "red")
+            set_show(param_name, "bold,yellow")
+        else:
+            print(p.value, type(p.value))
+            assert False
+
+        for mock_trigger in mock_triggers:
+            mock_trigger.assert_called()
+
+        config.triggers[param_name] = orig_triggers