Function component_core_instances_limit

tests/all/pooling_allocator.rs:1017–1055

()

#[test]
#[cfg(feature = "component-model")]
fn component_core_instances_limit() -> Result<()> {
    let mut pool = crate::small_pool_config();
    pool.max_core_instances_per_component(1);
    let mut config = Config::new();
    config.wasm_component_model(true);
    config.allocation_strategy(pool);
    let engine = Engine::new(&config)?;

    // One core instance works.
    wasmtime::component::Component::new(
        &engine,
        r#"
            (component
                (core module $m)
                (core instance $a (instantiate $m))
            )
        "#,
    )?;

    // Two core instances doesn't.
    match wasmtime::component::Component::new(
        &engine,
        r#"
            (component
                (core module $m)
                (core instance $a (instantiate $m))
                (core instance $b (instantiate $m))
            )
        "#,
    ) {
        Ok(_) => panic!("should have hit limit"),
        Err(e) => e.assert_contains(
            "The component transitively contains 2 core module instances, which exceeds the \
             configured maximum of 1",
        ),
    }

    Ok(())
}

#[test]
#[cfg(feature = "component-model")]