text: ##########################################################################
  #
  # pgAdmin 4 - PostgreSQL Tools
  #
  # Copyright (C) 2013 - 2020, The pgAdmin Development Team
  # This software is released under the PostgreSQL Licence
  #
  ##########################################################################
  
  import json
  import uuid
  
  from pgadmin.browser.server_groups.servers.databases.tests import utils as \
      database_utils
  from pgadmin.utils.route import BaseTestGenerator
  from regression import parent_node_dict
  from regression.python_test_utils import test_utils as utils
  from . import utils as schema_utils
  
  
  class SchemaPutTestCase(BaseTestGenerator):
      """ This class will update the schema under database node. """
      skip_on_database = ['gpdb']
      scenarios = [
          # Fetching default URL for extension node.
          ('Check Schema Node URL', dict(url='/browser/schema/obj/'))
      ]
  
      def setUp(self):
          super(SchemaPutTestCase, self).setUp()
          self.database_info = parent_node_dict["database"][-1]
          self.db_name = self.database_info["db_name"]
          # Change the db name, so that schema will create in newly created db
          self.schema_name = "schema_get_%s" % str(uuid.uuid4())[1:8]
          connection = utils.get_db_connection(self.db_name,
                                               self.server['username'],
                                               self.server['db_password'],
                                               self.server['host'],
                                               self.server['port'],
                                               self.server['sslmode'])
          self.schema_details = schema_utils.create_schema(connection,
                                                           self.schema_name)
  
      def runTest(self):
          """ This function will delete schema under database node. """
  
          server_id = self.database_info["server_id"]
          db_id = self.database_info["db_id"]
          db_con = database_utils.connect_database(self, utils.SERVER_GROUP,
                                                   server_id, db_id)
          if not db_con['data']["connected"]:
              raise Exception("Could not connect to database to delete the"
                              " schema.")
          schema_id = self.schema_details[0]
          schema_name = self.schema_details[1]
          schema_response = schema_utils.verify_schemas(self.server,
                                                        self.db_name,
                                                        schema_name)
          if not schema_response:
              raise Exception("Could not find the schema to update.")
  
          db_user = self.server["username"]
          data = {
              "deffuncacl": {
                  "added":
                      [
                          {
                              "grantee": db_user,
                              "grantor": db_user,
                              "privileges":
                                  [
                                      {
                                          "privilege_type": "X",
                                          "privilege": True,
                                          "with_grant": True
                                      }
                                  ]
                          }
                      ]
              },
              "defseqacl": {
                  "added":
                      [
                          {
                              "grantee": db_user,
                              "grantor": db_user,
                              "privileges":
                                  [
                                      {
                                          "privilege_type": "r",
                                          "privilege": True,
                                          "with_grant": False
                                      },
                                      {
                                          "privilege_type": "w",
                                          "privilege": True,
                                          "with_grant": False
                                      },
                                      {
                                          "privilege_type": "U",
                                          "privilege": True,
                                          "with_grant": False
                                      }
                                  ]
                          }
                      ]
              },
              "deftblacl": {
                  "added":
                      [
                          {
                              "grantee": "public",
                              "grantor": db_user,
                              "privileges":
                                  [
                                      {
                                          "privilege_type": "D",
                                          "privilege": True,
                                          "with_grant": False
                                      },
                                      {
                                          "privilege_type": "x",
                                          "privilege": True,
                                          "with_grant": False
                                      }
                                  ]
                          }
                      ]
              },
              "id": schema_id
          }
          put_response = self.tester.put(
              self.url + str(utils.SERVER_GROUP) + '/' + str(server_id) +
              '/' + str(db_id) + '/' + str(schema_id),
              data=json.dumps(data), follow_redirects=True)
  
          self.assertEquals(put_response.status_code, 200)
          # Disconnect the database
          database_utils.disconnect_database(self, server_id, db_id)
  
      def tearDown(self):
          pass
  