class_docstr: These test cases exercise the interface to the proto plan
  generation but do not call Spark.
class_docstr_tok: ["These","test","cases","exercise","the","interface","to","the","proto","plan","generation","but","do","not","call","Spark","."]
code: def test_crossjoin(self):
      # SPARK-41227: Test CrossJoin
      left_input = self.connect.readTable(table_name=self.tbl_name)
      right_input = self.connect.readTable(table_name=self.tbl_name)
      crossJoin_plan = left_input.crossJoin(
          other=right_input
      )._plan.to_proto(self.connect)
      join_plan = left_input.join(
          other=right_input, how="cross"
      )._plan.to_proto(self.connect)
      self.assertEqual(
          crossJoin_plan.root.join.left.read.named_table,
          join_plan.root.join.left.read.named_table,
      )
      self.assertEqual(
          crossJoin_plan.root.join.right.read.named_table,
          join_plan.root.join.right.read.named_table,
      )
      self.assertEqual(
          crossJoin_plan.root.join.join_type,
          join_plan.root.join.join_type,
      )
  
imports: import unittest
  import uuid
  import datetime
  import decimal
  import math
  from pyspark.testing.connectutils import PlanOnlyTestFixture, should_test_connect, connect_requirement_message
  from pyspark.errors import PySparkValueError
label_desc: Use image node_id 5 for calling the SparkConnectPlanTests obj's underlying member method code with example usage: obj.test_crossjoin() without return types