core-testing-interaction

core-testing-interaction is a small Rust library with one operation:

assert_eq!(core_testing_interaction::echo("hello".to_owned()), "hello");

echo accepts one String and returns exactly that value, including empty and Unicode strings.

Build and test

cargo test

Platform packages

All generated artifacts are written beneath target/.

| Platform | Command | Output | | --- | --- | --- | | iOS | scripts/build-ios.sh | target/<triple>/release/ libraries and target/bindings/ios/core_testing_interaction.swift | | Android | scripts/build-android.sh | target/<triple>/release/ libraries and target/bindings/android/uniffi/core_testing_interaction/core_testing_interaction.kt | | WebAssembly | scripts/build-wasm.sh | target/wasm/core_testing_interaction_bg.wasm and browser JavaScript/TypeScript glue |

The iOS and Android scripts use the crate-local UniFFI generator, so no global uniffi-bindgen installation is required. The WebAssembly script requires wasm-bindgen 0.2.127:

cargo install wasm-bindgen-cli --version 0.2.127 --locked

Publishing the WebAssembly package to npm

The web team consumes this crate as an npm package. scripts/publish-wasm.sh builds it with wasm-pack and publishes it to npm as a public scoped package (@ekotek/core-testing-interaction by default).

Prerequisites:

cargo install wasm-pack
rustup target add wasm32-unknown-unknown
npm login   # or set NODE_AUTH_TOKEN in the environment for CI

The @ekotek organization must exist on npmjs.com and your account must be a member (create it at npmjs.com → "Add Organization"). Then:

scripts/publish-wasm.sh              # build + publish
DRY_RUN=1 scripts/publish-wasm.sh    # build + `npm publish --dry-run` only
NPM_SCOPE=myorg scripts/publish-wasm.sh   # publish under a different scope

Bump version in Cargo.toml before each publish — npm rejects re-publishing an existing version. The web team then installs and calls it:

npm install @ekotek/core-testing-interaction

import { echo } from "@ekotek/core-testing-interaction";

console.log(echo("xin chào 👋")); // "xin chào 👋"

The bundler target used here needs no manual init() call under Webpack, Vite, or Rollup.

Prerequisites

Install the Rust target for every architecture you intend to package. The scripts cover these targets:

rustup target add aarch64-apple-ios aarch64-apple-ios-sim x86_64-apple-ios
rustup target add aarch64-linux-android armv7-linux-androideabi x86_64-linux-android i686-linux-android
rustup target add wasm32-unknown-unknown

iOS builds must run on macOS with Xcode installed so Cargo can use the iPhoneOS SDK. Android builds need an Android NDK and Cargo linkers configured for each Android target (for example, through cargo-ndk or target-specific CARGO_TARGET_*_LINKER variables). WASM builds need only the Rust target and the pinned wasm-bindgen CLI above.