SpacetimeDB/crates/cli/tests/codegen.rs

use spacetimedb_cli::generate;
use spacetimedb_data_structures::map::HashMap;
use spacetimedb_testing::modules::{CompilationMode, CompiledModule};
use std::path::Path;
use std::sync::OnceLock;

fn compiled_module() -> &'static Path {
    static COMPILED_MODULE: OnceLock<CompiledModule> = OnceLock::new();
    COMPILED_MODULE
        .get_or_init(|| CompiledModule::compile("rust-wasm-test", CompilationMode::Debug))
        .path()
}

macro_rules! declare_tests {
    ($($name:ident => $lang:ident $(in $namespace:literal)?,)*) => {
        $(
            declare_tests!(__impl $name => $lang $(in $namespace)?);
        )*
    };
    (__impl $name:ident => $lang:ident) => {
        declare_tests!(__impl $name => $lang in "");
    };
    (__impl $name:ident => $lang:ident in $namespace:literal) => {
        #[test]
        fn $name() {
            let module = generate::extract_descriptions(compiled_module()).unwrap();
            let outfiles: HashMap<_, _> = generate::generate(module, generate::Language::$lang, $namespace)
                .unwrap()
                .into_iter()
                .collect();
            insta::with_settings!({ sort_maps => true }, {
                insta::assert_toml_snapshot!(outfiles);
            });
        }
    };
}

declare_tests! {
    test_codegen_csharp => Csharp in "SpacetimeDB",
    test_codegen_typescript => TypeScript,
    test_codegen_rust => Rust,
}