feat(vfs) Update Metadata.len when updating the file buffer
#2550
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syrusakbary
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Sep 2, 2021
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2546: test(wasi) Running all WASI tests with `wasmer_vfs::mem_fs` too r=Hywan a=Hywan # Description This WIP PR updates our WASI test framework to specifically test with `wasmer_vfs::host_fs` (the default, as of now) _and_ with `wasmer_vfs::mem_fs` (🆕!). Bug trophies: * #2545 * #2550 * #2551 # Review - [ ] Add a short description of the change to the CHANGELOG.md file Co-authored-by: Ivan Enderlin <ivan@mnt.io>
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Description
This patch updates
wasmer_vfs::mem_fsto handleMetadata.lencorrectly. Thelenvalue is updated when something is written in the file buffer.lenis also updated when the file is truncated (with open options) or when the file is update withset_len.It helps to fix one test in #2546.