#![cfg(not(target_arch = "wasm32"))] async fn get() -> wgpu::Adapter { let adapter = { let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor { backends: wgpu::util::backend_bits_from_env().unwrap_or_default(), ..Default::default() }); instance .request_adapter(&wgpu::RequestAdapterOptions::default()) .await .unwrap() }; log::info!("Selected adapter: {:?}", adapter.get_info()); adapter } #[test] fn multi_instance() { { env_logger::init(); // Sequential instances. for _ in 0..3 { pollster::block_on(get()); } // Concurrent instances let _instances: Vec<_> = (0..3).map(|_| pollster::block_on(get())).collect(); } }