#3669 fix: validate config string formats Pull request opened by Dexter2099 Fixes #1451. Summary • Enable JSON Schema format checking when validating plugin configuration. • Add regression coverage showing an invalid

date-time

config value raises

ConfigValidationError

. • Update the shared core test tap fixture to use a valid RFC3339

date-time

value for

start_date

. Validation •

uv run pytest tests/core/test_tap_class.py::test_config_errors -q

•

uv run pytest tests/core/test_tap_class.py tests/core/test_target_class.py tests/core/test_plugin_base.py tests/core/test_plugin_config.py tests/core/test_jsonschema_helpers.py -q

•

uv run pytest tests/core -q

•

pre-commit run --files singer_sdk/plugin_base.py tests/core/test_tap_class.py tests/core/conftest.py tests/core/test_streams.py

•

NOX_DEFAULT_VENV_BACKEND=uv nox -rs tests-3.11 -- tests/core

Summary by Sourcery Enable strict JSON Schema format validation for plugin configuration and align tests with RFC3339-compliant date-time values. Bug Fixes: • Ensure configuration validation checks JSON Schema formats such as date-time when validating plugin configs. Tests: • Add regression coverage for invalid date-time configuration values and update core tap/stream test fixtures to use RFC3339-compliant start_date values. meltano/sdk