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README.md

Test examples

Here are use case examples on using wasm-bridge with wasmtime's component model including the WASI interface. Unlike the rest of the documentation, there examples are guaranteed to be up to date, because running them is a part of the CI pipeline.

Project setup

Setup is a little bit convoluted (to enable sharing built packages between test) and can be seen in the run test script, but here are the basic steps:

  1. Copy the guest folder somewhere.
  2. Copy the guest.rs file from a test to the src guest folder and rename it to lib.rs.
  3. In the guest folder, run cargo component build.
  4. Copy the host folder somewhere.
  5. Replace the "path" dependency in the host Cargo.toml with a current version dependency.
  6. Copy the host.rs file from a test to the src host folder.
  7. Make sure the the path in the lib.rs host file points to the built component (might need to replace release with debug).
  8. Run with cargo test in the host folder to verify that it is working.