ipatests: add installer framework testing

Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Tibor Dudlak <tdudlak@redhat.com>

ipapython/install/cli.py

@@ -303,7 +303,11 @@ class ConfigureTool(admintool.AdminTool):
         elif not no_file:
             logger.debug('Not logging to a file')
 
-    def run(self):
+    def init_configurator(self):
+        """Executes transformation, getting a flattened Installer object
+
+        :returns: common.installer.Installer object
+        """
         kwargs = {}
 
         transformed_cls = self._transform(self.configurable_class)
@@ -318,7 +322,7 @@ class ConfigureTool(admintool.AdminTool):
             kwargs['interactive'] = True
 
         try:
-            cfgr = transformed_cls(**kwargs)
+            return transformed_cls(**kwargs)
         except core.KnobValueError as e:
             knob_cls = knob_classes[e.name]
             try:
@@ -332,6 +336,9 @@ class ConfigureTool(admintool.AdminTool):
         except RuntimeError as e:
             self.option_parser.error(str(e))
 
+    def run(self):
+        cfgr = self.init_configurator()
+
         signal.signal(signal.SIGTERM, self.__signal_handler)
 
         if self.use_private_ccache: