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[PR #24309] [Test] add unit tests for web_reader_tool.py #30574

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opened 2026-02-21 20:47:48 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:47:48 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/24309

State: closed
Merged: Yes

Fixes #24308

This PR introduces a complete test suite for core.tools.utils.web_reader_tool, ensuring correctness across different scenarios and edge cases.

(1) page_result()

  • Tests substring extraction across normal and edge cases (start, end, beyond end, empty input).

(2) get_url()

  • Unsupported content-type handling.
  • Supported binary types delegated to ExtractProcessor.load_from_url.
  • Full HTML flow: chardet encoding detection + readability parsing + templating.
  • Empty readability text returns an empty string.
  • Fallback via cloudscraper on HTTP 403.
  • Returns proper error for non-200 HEAD responses.
  • Detects file type via Content-Disposition filename header.
  • Encoding decode failure → falls back to .text.

(3) extract_using_readabilipy()

  • Correct mapping of title, author, and text.
  • Safe defaults when fields are missing.

Important

  1. Make sure you have read our contribution guidelines
  2. Ensure there is an associated issue and you have been assigned to it
  3. Use the correct syntax to link this PR: Fixes #<issue number>.

Summary

Screenshots

Before After
... ...

Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly.
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
**Original Pull Request:** https://github.com/langgenius/dify/pull/24309 **State:** closed **Merged:** Yes --- Fixes #24308 This PR introduces a complete test suite for core.tools.utils.web_reader_tool, ensuring correctness across different scenarios and edge cases. **(1) page_result()** - Tests substring extraction across normal and edge cases (start, end, beyond end, empty input). **(2) get_url()** - Unsupported content-type handling. - Supported binary types delegated to ExtractProcessor.load_from_url. - Full HTML flow: chardet encoding detection + readability parsing + templating. - Empty readability text returns an empty string. - Fallback via cloudscraper on HTTP 403. - Returns proper error for non-200 HEAD responses. - Detects file type via Content-Disposition filename header. - Encoding decode failure → falls back to .text. **(3) extract_using_readabilipy()** - Correct mapping of title, author, and text. - Safe defaults when fields are missing. > [!IMPORTANT] > > 1. Make sure you have read our [contribution guidelines](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) > 1. Ensure there is an associated issue and you have been assigned to it > 1. Use the correct syntax to link this PR: `Fixes #<issue number>`. ## Summary <!-- Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change. --> ## Screenshots | Before | After | |--------|-------| | ... | ... | ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly. - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods
yindo added the pull-request label 2026-02-21 20:47:48 -05:00
yindo closed this issue 2026-02-21 20:47:48 -05:00
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Reference: langgenius/dify#30574
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