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Is there a suite of conformance tests and/or benchmarks for MongoDB?

A blackbox test suite that tests common query types and could be run against mongo itself (similar to pgbench, TPC-C, etc) and can optionally test for correctness/speed would go a long way towards making it easier to trust this project with workloads.

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This is early stage project so you're unlikely to be able to run any real MongoDB applications with it yet. Benchmarks are too to come

100% Compatibility is not really a focus, real application use cases is. You can read on FerretDB's CEO take on compatibility here

https://www.ferretdb.io/2021/12/07/mongodb-compatibility-wha...

How is it a drop-in replacement if 100% compatibility isn't a focus?

The linked blog post tried to explain it the best we could.

The MongoDB test suite used to test compatibility is here:

https://github.com/mongodb-developer/service-tests

Thanks for the pointer, couldn’t find this myself!

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