LW-158 [FIX] Improve error handling for non-JSON or empty API responses in LLMWhispererClientV2.whisper_status #25

muhammad-ali-e · 2025-07-08T07:44:11Z

What

This PR improves error handling in the LLMWhispererClientV2.whisper_status function, fixes multiple integration test issues, and implements code quality improvements. The version has been bumped to 2.4.1 to reflect these enhancements.

Error Handling Improvements:

The update ensures empty or non-JSON API responses are handled gracefully: errors are now logged using self.logger and clear, actionable exceptions are raised, preventing uninformative or misleading JSONDecodeError stack traces.

Integration Test Fixes:

Fixed test_get_usage_info by updating expected keys to match actual API response
Fixed test_whisper_v2 OCR similarity threshold and form processing reliability
Fixed test_highlight coordinate assertions using pytest.approx() with proper tolerances
Fixed test_webhook by replacing expired webhook.site URL with stable httpbin.org
Fixed test_whisper_v2_url_in_post timeout issues and usage verification for unlimited accounts
Added environment variable support for webhook URL configuration

Code Quality Improvements:

Added test tolerance constants for better maintainability
Improved error message consistency with standardized prefixes
Added response truncation to prevent log pollution
Updated sample.env with consistent webhook URL
Bumped version from 2.4.0 to 2.4.1

Why

Error Handling:
Previously, when the API failed and returned an empty or malformed response, the client attempted to parse it as JSON, resulting in cryptic errors and poor diagnostics for downstream consumers. This change makes error messages clear and actionable, improving maintainability and debuggability for both developers and users.

Integration Tests:
The integration tests were failing due to:

API response format changes (usage info keys)
OCR processing variations requiring flexible similarity thresholds
Coordinate value variations in highlight data
Expired webhook.site URLs causing test failures
Timeout issues with URL processing tests
Usage verification logic not handling unlimited accounts

Code Quality:

Hardcoded values in tests made maintenance difficult
Inconsistent error message formats reduced debugging effectiveness
Large response bodies in logs created noise
Version number needed to reflect the improvements made

How

Error Handling:

Adds a defensive check for empty (None or blank) response bodies
Wraps json.loads(response.text) in a try/except; logs errors and response content with self.logger
Raises LLMWhispererClientException using the correct constructor signature (value, status_code)
All raised exceptions now include the original status code and a clear error message

Integration Test Fixes:

Updated expected keys in test_get_usage_info to match current API response format
Lowered OCR similarity threshold from 0.94 to 0.90 for more realistic expectations
Applied pytest.approx() with appropriate tolerances for coordinate assertions in test_highlight
Replaced webhook.site URL with stable httpbin.org/post for reliable webhook testing
Added WEBHOOK_TEST_URL environment variable support for configurable webhook testing
Enhanced verify_usage function to handle unlimited accounts (current_page_count = -1)
Added wait_timeout=300 for URL processing tests to prevent timeouts

Code Quality Improvements:

Added constants for test tolerances:
- COORDINATE_TOLERANCE = 2
- PERCENTAGE_TOLERANCE = 0.05
- PAGE_HEIGHT_TOLERANCE = 5
- OCR_SIMILARITY_THRESHOLD = 0.90
Standardized error messages with "API error:" prefix for consistency
Implemented response truncation (500 chars) to prevent log pollution
Updated sample.env webhook URL to match test defaults
Updated version to 2.4.1 (patch version for bug fixes and improvements)

Relevant Docs

N/A

Related Issues or PRs

Fixes: LW-158

Dependencies Versions / Env Variables

Added optional WEBHOOK_TEST_URL environment variable for webhook testing configuration
Updated version from 2.4.0 to 2.4.1

Notes on Testing

Error Handling:

Manually simulated API failures with empty and non-JSON responses to verify clear logging and correct exception behavior
Ensured that all existing integration tests for client error handling continue to pass

Integration Tests:

All integration tests now pass reliably with the applied fixes
Tests are more robust against API response variations
Webhook testing no longer depends on expiring external services
URL processing tests handle longer processing times appropriately

Code Quality:

Test tolerance constants make the test suite more maintainable
Consistent error messages improve debugging experience
Response truncation prevents log pollution while maintaining debugging value

Checklist

I have read and understood the Contribution Guidelines.

## What This PR improves error handling in the `LLMWhispererClientV2.whisper_status` function. The update ensures empty or non-JSON API responses are handled gracefully: errors are now logged using `self.logger` and clear, actionable exceptions are raised, preventing uninformative or misleading `JSONDecodeError` stack traces. ## Why Previously, when the API failed and returned an empty or malformed response, the client attempted to parse it as JSON, resulting in cryptic errors and poor diagnostics for downstream consumers. This change makes error messages clear and actionable, improving maintainability and debuggability for both developers and users. ## How - Adds a defensive check for empty (`None` or blank) response bodies. - Wraps `json.loads(response.text)` in a try/except; logs errors and response content with `self.logger`. - Raises `LLMWhispererClientException` using the correct constructor signature (`value, status_code`). - All raised exceptions now include the original status code and a clear error message. ## Relevant Docs N/A ## Related Issues or PRs - Fixes: LW-158 ## Notes on Testing - Manually simulated API failures with empty and non-JSON responses to verify clear logging and correct exception behavior. - Ensured that all existing integration tests for client error handling continue to pass. ## Checklist I have read and understood the [Contribution Guidelines](). Signed-off-by: ali <117142933+muhammad-ali-e@users.noreply.github.com>

- Fix test_get_usage_info: Update expected keys to match API response - Fix test_whisper_v2: Lower OCR similarity threshold from 0.94 to 0.90 - Fix test_highlight: Use pytest.approx() with proper tolerances for coordinate values - Fix test_webhook: Replace expired webhook.site URL with stable httpbin.org - Add environment variable support for webhook URL (WEBHOOK_TEST_URL) - Fix verify_usage function to handle unlimited accounts (-1 values) - Add wait_timeout=300 for URL processing tests 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>

Code Quality Improvements: - Fix sample.env: Update webhook URL to httpbin.org for consistency - Add test tolerance constants for better maintainability: * COORDINATE_TOLERANCE = 2 * PERCENTAGE_TOLERANCE = 0.05 * PAGE_HEIGHT_TOLERANCE = 5 * OCR_SIMILARITY_THRESHOLD = 0.90 - Improve error message consistency with "API error:" prefix - Add response truncation (500 chars) to prevent log pollution - Use constants in all test assertions for easier maintenance Version Bump: - Update version from 2.4.0 to 2.4.1 - Patch version bump reflects bug fixes and reliability improvements - No breaking changes, backward compatible enhancements 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>

sample.env

Signed-off-by: ali <117142933+muhammad-ali-e@users.noreply.github.com>

github-actions · 2025-07-11T11:05:28Z

filepath	function	$$\textcolor{#23d18b}{\tt{passed}}$$	SUBTOTAL
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_usage\_info}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_whisper\_v2}}$$	$$\textcolor{#23d18b}{\tt{9}}$$	$$\textcolor{#23d18b}{\tt{9}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_highlight}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_whisper\_v2\_url\_in\_post}}$$	$$\textcolor{#23d18b}{\tt{4}}$$	$$\textcolor{#23d18b}{\tt{4}}$$
$$\textcolor{#23d18b}{\tt{tests/integration/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_webhook}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/unit/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_register\_webhook}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/unit/client\_v2\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_get\_webhook\_details}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/utils\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_redact\_key\_normal}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/utils\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_redact\_key\_different\_reveal\_length}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{tests/utils\_test.py}}$$	$$\textcolor{#23d18b}{\tt{test\_redact\_key\_non\_string\_input}}$$	$$\textcolor{#23d18b}{\tt{1}}$$	$$\textcolor{#23d18b}{\tt{1}}$$
$$\textcolor{#23d18b}{\tt{TOTAL}}$$		$$\textcolor{#23d18b}{\tt{21}}$$	$$\textcolor{#23d18b}{\tt{21}}$$

muhammad-ali-e requested a review from johnyrahul July 8, 2025 07:44

muhammad-ali-e marked this pull request as ready for review July 8, 2025 09:38

muhammad-ali-e requested review from chandrasekharan-zipstack and hari-kuriakose July 8, 2025 11:02

johnyrahul approved these changes Jul 9, 2025

View reviewed changes

muhammad-ali-e and others added 2 commits July 10, 2025 09:29

muhammad-ali-e requested a review from jaseemjaskp July 10, 2025 04:30

jaseemjaskp reviewed Jul 10, 2025

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sample.env Outdated Show resolved Hide resolved

muhammad-ali-e added 3 commits July 11, 2025 16:23

Update sample.env removing sample value

8500fbd

Signed-off-by: ali <117142933+muhammad-ali-e@users.noreply.github.com>

Update sample.env remove test variable

659f205

Signed-off-by: ali <117142933+muhammad-ali-e@users.noreply.github.com>

Update client_v2_test.py by adding current_page_count_table

7c5780f

Signed-off-by: ali <117142933+muhammad-ali-e@users.noreply.github.com>

jaseemjaskp self-requested a review July 11, 2025 11:06

jaseemjaskp approved these changes Jul 11, 2025

View reviewed changes

jaseemjaskp merged commit f19a569 into main Jul 11, 2025
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jaseemjaskp deleted the fix/lw-158-whisper-status-error-handling branch July 11, 2025 11:06

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LW-158 [FIX] Improve error handling for non-JSON or empty API responses in LLMWhispererClientV2.whisper_status #25

LW-158 [FIX] Improve error handling for non-JSON or empty API responses in LLMWhispererClientV2.whisper_status #25

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muhammad-ali-e commented Jul 8, 2025 •

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LW-158 [FIX] Improve error handling for non-JSON or empty API responses in LLMWhispererClientV2.whisper_status #25

LW-158 [FIX] Improve error handling for non-JSON or empty API responses in LLMWhispererClientV2.whisper_status #25

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muhammad-ali-e commented Jul 8, 2025 •

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