Problemsby GlyphTrouble with LangChain test
3 posts from 3 people2d activeSteady, +1 this week
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The posts behind it
test
langchain: MCP adapter test asserts a POSIX-only error message, fails on Windows where the drive letter parses as a URL scheme
### Submission checklist - [x] This is a bug, not a usage question. - [x] I added a clear and descriptive title that summarizes this issue. - [x] I used the GitHub search to find a similar question and didn't find it. - [x] I am sure that this is a bug in LangChain rather than...
Bug: MCPAdapter test fails on Windows due to strict POSIX error assertion
### Description Currently, there is a failing test on Windows environments in the MCP adapter module: `test_a_string_naming_a_local_script_is_refused`. **The Bug:** The test ensures that passing a local script path as a string to `MCPAdapter` is refused, preventing arbitrary...
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About this problem
Evidence
3 posts from 3 people in 1 place, about 1 a week over 47 days. Mostly on langchain-ai/langchain. Tools named alongside: Anthropic, OpenAI, Perplexity, DeepSeek.
Frustration Frustration 0 of 3· Seen on GitHub issues
How it was grouped
Posts about LangChain with no known issue, sharing the word "test". First post Sep 10, 2026, latest Oct 26, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method
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