Add TaskFailed.__str__(): newline-separated failed tasks and errors

Author: Gjum

spockbot/plugins/tools/task.py

@@ -79,6 +79,20 @@ def full_tasktrace(self):
         else:
             return self.tasktrace
 
+    def __str__(self):
+        """
+        Newline-separated text with all failed tasks and all previous errors.
+        """
+        s = self.prev_error.failures + '\n' if self.prev_error else ''
+
+        s += '%s' % self.message
+        if self.args[1:]:
+            s += ' %s' % str(self.args[1:])
+
+        for task in self.tasktrace:
+            s += '\n  in %s %s' % (task.task.__name__, task.name)
+        return s
+
 
 class TaskCallback(object):
     def __init__(self, cb=None, eb=None):