pgAdmin 4 commit: Feature test improvement and fix intermittent failure

Feature test improvement and fix intermittent failures part of #3936

Branch
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master

Details
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https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=9f455a514e317412b03b9b6adac55cd601284098
Author: Shubham Agarwal <shubham(dot)agarwal(at)enterprisedb(dot)com>

Modified Files
--------------
web/pgadmin/feature_tests/browser_tool_bar_test.py | 36 +-
.../copy_selected_query_results_feature_test.py | 73 ++--
web/pgadmin/feature_tests/file_manager_test.py | 50 ++-
.../feature_tests/keyboard_shortcut_test.py | 40 +-
web/pgadmin/feature_tests/locators.py | 32 --
.../feature_tests/pg_datatype_validation_test.py | 82 ++--
.../pg_utilities_backup_restore_test.py | 117 +++--
.../feature_tests/pg_utilities_maintenance_test.py | 69 ++-
.../query_tool_auto_complete_tests.py | 97 ++---
.../feature_tests/query_tool_journey_test.py | 214 +++++-----
web/pgadmin/feature_tests/query_tool_tests.py | 473 +++++++++------------
.../feature_tests/table_ddl_feature_test.py | 8 +-
web/pgadmin/feature_tests/view_data_dml_queries.py | 49 ++-
.../xss_checks_panels_and_query_tool_test.py | 34 +-
.../xss_checks_pgadmin_debugger_test.py | 13 +-
.../feature_tests/xss_checks_roles_control_test.py | 13 +-
web/regression/feature_utils/locators.py | 221 ++++++++++
web/regression/feature_utils/pgadmin_page.py | 194 ++++++++-
web/regression/feature_utils/tree_area_locators.py | 31 ++
.../python_test_utils/test_gui_helper.py | 40 +-
web/regression/python_test_utils/test_utils.py | 65 ++-
21 files changed, 1219 insertions(+), 732 deletions(-)