Nexus error serialization #1323
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This commit removes TODO comments from the codebase that were triaged and marked as "Won't Do" in the Nexus Python SDK TODO tracking document. These comments documented items that were decided not to be implemented or were already completed. Removed TODO comments from: - temporalio/worker/_activity.py (2 comments) - temporalio/workflow.py (1 comment) - temporalio/worker/_nexus.py (1 comment) - temporalio/nexus/_token.py (1 comment) - tests/nexus/test_workflow_caller.py (3 comments) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
… for NexusOperationHandle
Add comprehensive round-trip tests for failure converter handling of: - nexusrpc.HandlerError (all HandlerErrorType values, retryable_override mapping) - NexusOperationError (all fields, cause chains) - nexusrpc.OperationError (one-way from_failure) - nexus_sdk_failure_error_info (one-way to FailureError) - ResetWorkflowError (with and without heartbeat details) Also tests fallback behavior for unknown handler error types and operation error states. Remove TODO(nexus-preview) comment as test coverage is now in place. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
…al failures everywhere instead of helpers
The HTTP interface is not user-facing. Delete test_handler.py and test_handler_async_operation.py which tested via direct HTTP calls. Convert test_workflow_run_operation.py and test_dynamic_creation_of_user_handler_classes.py to use workflow callers instead. Remove HTTP-specific helper code (ServiceClient, Failure, dataclass_as_dict) from tests/helpers/nexus.py. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace the class-based ErrorConversionTestCase pattern with a simpler dataclass-based approach: - Remove ErrorConversionTestCase base class and registry pattern - Add typed dataclasses for expected exceptions: ExpectedNexusOperationError, ExpectedHandlerError, and ExpectedApplicationError - Move operation implementations from class methods to explicit ErrorTestService handler methods - Replace tuple-based expected_exception_chain_in_workflow with typed expected_exception_chain using the new dataclasses - Refactor _validate_exception_chain to use isinstance() checks instead of string key comparisons on dict[str, Any] - Update workflow to call operations by name rather than through registry lookup Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
…on server capabilities
… no longer apply with the most recent api update
…havior when reset_workflow_failure_info is set on a failure. Remove some stale comments
VegetarianOrc
commented
Feb 11, 2026
| temporalio.exceptions.FailureError | ||
| | nexusrpc.HandlerError | ||
| ) | ||
| match failure.WhichOneof("failure_info"): |
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I changed this to use match here to help ensure all cases are handled explicitly.
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