fix: Improve Penguin Bindufy configuration validation and error messages.#425
fix: Improve Penguin Bindufy configuration validation and error messages.#425Brian-code-123 wants to merge 1 commit intoGetBindu:mainfrom
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📝 WalkthroughWalkthroughThe changes introduce enhanced error handling and validation for the Penguin SDK. A new Changes
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem
✨ Finishing Touches🧪 Generate unit tests (beta)
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Pull request overview
This PR improves the Penguin SDK startup path by adding stricter pre-flight validation for bindufy configuration and clearer error messages, aiming to fail fast with more actionable feedback (Fixes #242).
Changes:
- Introduces
ConfigErrorand updates required-field validation to raise clearer, field-specific errors. - Adds
deployment.urlURL validation (must be a validhttp(s)URL). - Improves
bindufyhandler validation error message and adds/updates unit tests accordingly.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
bindu/penguin/config_validator.py |
Adds ConfigError, dictionary type check, and deployment.url format validation logic. |
bindu/penguin/bindufy.py |
Improves handler non-callable error message surfaced by bindufy(). |
tests/unit/penguin/test_config_validator.py |
Updates expectations to ConfigError and adds URL validation test cases. |
tests/unit/penguin/test_bindufy.py |
Adds test ensuring non-callable handler fails fast with clearer messaging. |
| raise ConfigError( | ||
| f"ConfigError: missing required fields in the agent configuration:\n" | ||
| f"{formatted_fields}\n\n" | ||
| f"Example:\n{cls.EXAMPLE_CONFIG}" | ||
| ) | ||
|
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||
| cls._validate_deployment_url(config) |
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Because deployment.url is already included in REQUIRED_FIELDS, some invalid shapes (e.g. deployment present but not a dict) will be reported as “missing required field 'deployment.url'” and the more specific errors in _validate_deployment_url() won’t be reached. Consider removing deployment.url from REQUIRED_FIELDS and letting _validate_deployment_url() own both presence + format/type validation, or enhance the required-field traversal to surface type errors (e.g. non-dict deployment) before treating it as missing.
| if not isinstance(deployment_url, str) or not deployment_url.strip(): | ||
| raise ConfigError( | ||
| "ConfigError: 'deployment.url' is a required field in the agent configuration." | ||
| ) | ||
|
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deployment_url type/emptiness validation currently raises a “required field” error even when the key exists but has the wrong type (e.g. url: 123). This makes debugging harder; consider distinguishing “missing/empty” from “must be a non-empty string” (and optionally include the actual type/value in the message).
| if not isinstance(deployment_url, str) or not deployment_url.strip(): | |
| raise ConfigError( | |
| "ConfigError: 'deployment.url' is a required field in the agent configuration." | |
| ) | |
| # Distinguish between missing/empty and wrong-type values for clearer errors. | |
| if deployment_url is None or ( | |
| isinstance(deployment_url, str) and not deployment_url.strip() | |
| ): | |
| raise ConfigError( | |
| "ConfigError: 'deployment.url' is a required non-empty string field in the agent configuration." | |
| ) | |
| if not isinstance(deployment_url, str): | |
| raise ConfigError( | |
| "ConfigError: 'deployment.url' must be a non-empty string in the agent configuration, " | |
| f"got value {deployment_url!r} of type {type(deployment_url).__name__}." | |
| ) |
Brian-code-123
changed the title
Overview / Description
This change adds stricter and more readable configuration validation and error messages before the Penguin SDK bindufy startup flow. In addition to checking required fields, it introduces validation for the format of deployment.url and improves the error message when a handler is not callable.
This improves developer experience and prevents users from encountering obscure KeyError/AttributeError deep in runtime.
Fixes #242
Changes
Added ConfigError (subclassing ValueError) in bindu/penguin/config_validator.py as an explicit configuration-validation error type.
Strengthened required-field error messages: when a single field is missing, report: ConfigError: '' is a required field in the agent configuration.
Added deployment.url format validation: must be a valid http(s) URL.
Improved handler validation error messages in bindu/penguin/bindufy.py to explicitly state that the handler must be a callable function or coroutine.
Added/updated unit tests:
tests/unit/penguin/test_config_validator.py: cases for missing fields and URL scheme/format errors.
tests/unit/penguin/test_bindufy.py: case demonstrating a clear error message when the handler is not callable.
How to Test
Local tests:
uv run pytest tests/unit/penguin/test_config_validator.py tests/unit/penguin/test_bindufy.py
Quality checks:
uv run ruff check bindu/penguin/config_validator.py bindu/penguin/bindufy.py tests/unit/penguin/test_config_validator.py tests/unit/penguin/test_bindufy.py
uv run ruff format --check bindu/penguin/config_validator.py bindu/penguin/bindufy.py tests/unit/penguin/test_config_validator.py tests/unit/penguin/test_bindufy.py
Test environment: Python 3.12
Summary by CodeRabbit
Bug Fixes
Improved error messages for handler and configuration validation failures
Added validation for deployment URLs with specific error reporting
New Features
Introduced new ConfigError exception class for configuration validation errors