class_docstr: Test shared Alert class.
docstr: Alert Class - Init With Invalid Kwargs
docstr_tok: ["Alert","Class","-","Init","With","Invalid","Kwargs"]
code: def test_init_invalid_kwargs(self):
      """Alert Class - Init With Invalid Kwargs"""
      assert_raises(
          AlertCreationError,
          Alert,
          "",
          {},
          set(),
          cluster="test",
          invalid="nonsense",
      )
  
imports: import copy
  from datetime import datetime, timedelta
  import json
  from nose.tools import assert_equal, assert_false, assert_is_instance, assert_not_in, assert_raises, assert_true
  from streamalert.shared.alert import Alert, AlertCreationError
label_desc: Use image node_id 4 for calling the TestAlert obj's underlying member method code with example usage: obj.test_init_invalid_kwargs() without return types