mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-21 20:21:01 +00:00
Alexandru Vasile
67 lines
2.5 KiB
Rust
67 lines
2.5 KiB
Rust
#![cfg(target_arch = "wasm32")]
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use subxt::config::PolkadotConfig;
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use subxt::rpc::LightClient;
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use wasm_bindgen_test::*;
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use std::sync::Arc;
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use serde_json::value::RawValue;
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use subxt::rpc::RpcClientT;
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use subxt::rpc::Subscription;
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wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);
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/// Run the tests by `$ wasm-pack test --firefox --headless`
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fn init_tracing() {
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console_error_panic_hook::set_once();
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tracing_wasm::set_as_global_default();
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}
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// #[wasm_bindgen_test]
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// async fn wasm_ws_transport_works() {
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// let client = subxt::client::OnlineClient::<PolkadotConfig>::from_url("ws://127.0.0.1:9944")
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// .await
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// .unwrap();
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// let chain = client.rpc().system_chain().await.unwrap();
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// assert_eq!(&chain, "Development");
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// }
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#[wasm_bindgen_test]
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async fn light_client_transport_works() {
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init_tracing();
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tracing::warn!("Starting test");
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let light_client = LightClient::new(include_str!("../../../artifacts/dev_spec.json")).unwrap();
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tracing::warn!("RPC layer created..");
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// Note: It is impractical to construct a full subxt `OnlineClient` because the
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// light-client must sync with the tip of the chain to fetch the Runtime Version
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// needed by subxt.
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// The default wasm-bindgen test timeout is 20 seconds, tested locally the
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// client does not sync in time with WASM_BINDGEN_TEST_TIMEOUT=1000 (around 16 seconds).
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// Test raw RPC method calls.
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let chain = light_client.request_raw("system_chain", None).await.unwrap();
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let chain: String = serde_json::from_str(chain.get()).unwrap();
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assert_eq!(&chain, "Development");
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let param = RawValue::from_string("[0]".to_owned()).expect("Should be valid JSON");
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let genesis = light_client.request_raw("chain_getBlockHash", Some(param)).await.unwrap();
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let genesis: String = serde_json::from_str(genesis.get()).unwrap();
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assert!(genesis.starts_with("0x"));
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tracing::warn!("Genesis hash {:?}", genesis);
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// Ensure light-client functions with subscriptions.
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let sub = light_client.subscribe_raw("chain_subscribeAllHeads", None, "chain_unsubscribeAllHeads").await.unwrap();
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// The subscription result is actually a PolkadotConfig::Header, we are interested in iteration.
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let mut sub: Subscription<String> = Subscription::new(sub);
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let block = sub.next().await.expect("Subscription failed").expect("Subscription ended");
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tracing::warn!("Block hash {:?}", block);
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let block = sub.next().await.expect("Subscription failed").expect("Subscription ended");
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tracing::warn!("Block hash {:?}", block);
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}
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