support bpmn unit test method mocks

[burnettk]

support bpmn unit test method mocks

Summary by CodeRabbit

• Refactor
  • Improved code clarity and maintainability in ProcessInstanceProcessor by removing redundant code.
• New Features
  • Enhanced ProcessModelTestRunnerScriptEngine with new methods for better expression handling and method overrides.
  • Introduced a new BPMN process model for script tasks with backend script execution.
• Tests
  • Added a new test script for validating the script task in the BPMN process.

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Walkthrough

Walkthrough

The recent updates involve refactoring and enhancing the process instance processing and testing workflow within the SpiffWorkflow backend. Key improvements include the removal of redundant code for method overrides, the introduction of new method declarations and logic for script execution and expression evaluation within tasks, and the addition of new test assets for a script task with backend execution. These changes aim to improve code clarity, maintainability, and testing capabilities.

Changes

File Path	Change Summary
.../services/process_instance_processor.py	Refactored the execute method to remove redundant method_overrides handling, enhancing code clarity and maintainability.
.../services/process_model_test_runner_service.py	Updated method declarations and logic, including execute and evaluate methods with method overrides. Introduced instantiate_executer method for script engine instantiation with method overrides based on test case contents.
.../expected-to-pass/script-task-with-backend-script/process_model.json	Added a new file defining a Script Task with configurations for display name, fault handling, and process identifiers.
.../expected-to-pass/script-task-with-backend-script/script_task.bpmn	Introduced a BPMN process model featuring a script task for backend script execution, including process flow and end event visualization.
.../expected-to-pass/script-task-with-backend-script/test_script_task.json	Added a test script for a BPMN process task, defining mocks, tasks, and expected output for the test case.

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Review Status

Actionable comments generated: 5

Configuration used: .coderabbit.yaml

Commits

Files that changed from the base of the PR and between 4d9946c and a69f96a.

Files selected for processing (5)

• spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py (2 hunks)
• spiffworkflow-backend/src/spiffworkflow_backend/services/process_model_test_runner_service.py (3 hunks)
• spiffworkflow-backend/tests/data/bpmn_unit_test_process_models/expected-to-pass/script-task-with-backend-script/process_model.json (1 hunks)
• spiffworkflow-backend/tests/data/bpmn_unit_test_process_models/expected-to-pass/script-task-with-backend-script/script_task.bpmn (1 hunks)
• spiffworkflow-backend/tests/data/bpmn_unit_test_process_models/expected-to-pass/script-task-with-backend-script/test_script_task.json (1 hunks)

Additional comments: 8

spiffworkflow-backend/tests/data/bpmn_unit_test_process_models/expected-to-pass/script-task-with-backend-script/process_model.json (1)

• 3-8: The configuration for the BPMN process model looks good and adheres to the expected structure.

spiffworkflow-backend/tests/data/bpmn_unit_test_process_models/expected-to-pass/script-task-with-backend-script/test_script_task.json (1)

• 10-22: The tasks and expected output JSON are correctly structured and adhere to the expected format for the test case.

spiffworkflow-backend/tests/data/bpmn_unit_test_process_models/expected-to-pass/script-task-with-backend-script/script_task.bpmn (1)

• 1-41: The BPMN file script_task.bpmn is correctly structured and adheres to BPMN XML standards. The process and script task are well-defined.

spiffworkflow-backend/src/spiffworkflow_backend/services/process_model_test_runner_service.py (5)

• 46-48: The initialization of ProcessModelTestRunnerScriptEngine with method_overrides is well-implemented, enhancing flexibility by allowing method overrides.
• 58-59: Merging method_overrides with default methods is a good practice for flexibility. Ensure that key conflicts between default methods and overrides are handled as expected.
• 66-72: The new evaluate method for handling expressions within task contexts is a valuable addition, enhancing the script engine's capabilities.
• 74-78: The updated execute method to incorporate method overrides is correctly implemented, ensuring that overridden methods are utilized during script execution.
• 43-81: > 📝 NOTE

This review was outside the diff hunks and was mapped to the diff hunk with the greatest overlap. Original lines [1-452]

The rest of the changes in process_model_test_runner_service.py are well-implemented, contributing to the enhancement of the testing framework for BPMN processes.