Newer
Older
// Copyright (C) Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Polkadot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
#[cfg(feature = "ci-only-tests")]
use assert_matches::assert_matches;
use parity_scale_codec::Encode as _;
use polkadot_node_core_pvf::{
start, Config, InvalidCandidate, Metrics, PrepareJobKind, PvfPrepData, ValidationError,
ValidationHost, JOB_TIMEOUT_WALL_CLOCK_FACTOR,
use polkadot_parachain_primitives::primitives::{BlockData, ValidationParams, ValidationResult};
use polkadot_primitives::ExecutorParams;
#[cfg(feature = "ci-only-tests")]
use polkadot_primitives::ExecutorParam;
use std::time::Duration;
use tokio::sync::Mutex;
mod adder;
mod worker_common;
const PUPPET_EXE: &str = env!("CARGO_BIN_EXE_puppet_worker");
const TEST_EXECUTION_TIMEOUT: Duration = Duration::from_secs(3);
const TEST_PREPARATION_TIMEOUT: Duration = Duration::from_secs(3);
host: Mutex<ValidationHost>,
}
impl TestHost {
fn new() -> Self {
Self::new_with_config(|_| ())
}
fn new_with_config<F>(f: F) -> Self
where
F: FnOnce(&mut Config),
{
let cache_dir = tempfile::tempdir().unwrap();
let program_path = std::path::PathBuf::from(PUPPET_EXE);
let mut config =
Config::new(cache_dir.path().to_owned(), None, program_path.clone(), program_path);
let (host, task) = start(config, Metrics::default());
let _ = tokio::task::spawn(task);
Self { cache_dir, host: Mutex::new(host) }
}
async fn validate_candidate(
&self,
code: &[u8],
params: ValidationParams,
executor_params: ExecutorParams,
) -> Result<ValidationResult, ValidationError> {
let (result_tx, result_rx) = futures::channel::oneshot::channel();
let code = sp_maybe_compressed_blob::decompress(code, 16 * 1024 * 1024)
.expect("Compression works");
self.host
.lock()
.await
.execute_pvf(
PvfPrepData::from_code(
code.into(),
executor_params,
TEST_PREPARATION_TIMEOUT,
PrepareJobKind::Compilation,
),
TEST_EXECUTION_TIMEOUT,
params.encode(),
polkadot_node_core_pvf::Priority::Normal,
result_tx,
)
.await
.unwrap();
result_rx.await.unwrap()
}
}
async fn terminates_on_timeout() {
let host = TestHost::new();
let start = std::time::Instant::now();
let result = host
.validate_candidate(
halt::wasm_binary_unwrap(),
ValidationParams {
block_data: BlockData(Vec::new()),
parent_head: Default::default(),
relay_parent_number: 1,
relay_parent_storage_root: Default::default(),
},
Err(ValidationError::InvalidCandidate(InvalidCandidate::HardTimeout)) => {},
let duration = std::time::Instant::now().duration_since(start);
assert!(duration >= TEST_EXECUTION_TIMEOUT);
assert!(duration < TEST_EXECUTION_TIMEOUT * JOB_TIMEOUT_WALL_CLOCK_FACTOR);
#[cfg(feature = "ci-only-tests")]
#[tokio::test]
async fn ensure_parallel_execution() {
// Run some jobs that do not complete, thus timing out.
let host = TestHost::new();
let execute_pvf_future_1 = host.validate_candidate(
halt::wasm_binary_unwrap(),
ValidationParams {
block_data: BlockData(Vec::new()),
parent_head: Default::default(),
relay_parent_number: 1,
relay_parent_storage_root: Default::default(),
},
);
let execute_pvf_future_2 = host.validate_candidate(
halt::wasm_binary_unwrap(),
ValidationParams {
block_data: BlockData(Vec::new()),
parent_head: Default::default(),
relay_parent_number: 1,
relay_parent_storage_root: Default::default(),
},
);
let start = std::time::Instant::now();
let (res1, res2) = futures::join!(execute_pvf_future_1, execute_pvf_future_2);
assert_matches!(
(res1, res2),
(
Err(ValidationError::InvalidCandidate(InvalidCandidate::HardTimeout)),
Err(ValidationError::InvalidCandidate(InvalidCandidate::HardTimeout))
)
);
// Total time should be < 2 x TEST_EXECUTION_TIMEOUT (two workers run in parallel).
let duration = std::time::Instant::now().duration_since(start);
let max_duration = 2 * TEST_EXECUTION_TIMEOUT;
duration < max_duration,
"Expected duration {}ms to be less than {}ms",
duration.as_millis(),
max_duration.as_millis()
async fn execute_queue_doesnt_stall_if_workers_died() {
let host = TestHost::new_with_config(|cfg| {
cfg.execute_workers_max_num = 5;
});
// Here we spawn 8 validation jobs for the `halt` PVF and share those between 5 workers. The
// first five jobs should timeout and the workers killed. For the next 3 jobs a new batch of
// workers should be spun up.
let start = std::time::Instant::now();
futures::future::join_all((0u8..=8).map(|_| {
host.validate_candidate(
halt::wasm_binary_unwrap(),
ValidationParams {
block_data: BlockData(Vec::new()),
parent_head: Default::default(),
relay_parent_number: 1,
relay_parent_storage_root: Default::default(),
},
// Total time should be >= 2 x TEST_EXECUTION_TIMEOUT (two separate sets of workers that should
// both timeout).
let duration = std::time::Instant::now().duration_since(start);
let max_duration = 2 * TEST_EXECUTION_TIMEOUT;
assert!(
duration >= max_duration,
"Expected duration {}ms to be greater than or equal to {}ms",
duration.as_millis(),
max_duration.as_millis()
);
#[cfg(feature = "ci-only-tests")]
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
#[tokio::test]
async fn execute_queue_doesnt_stall_with_varying_executor_params() {
let host = TestHost::new_with_config(|cfg| {
cfg.execute_workers_max_num = 2;
});
let executor_params_1 = ExecutorParams::default();
let executor_params_2 = ExecutorParams::from(&[ExecutorParam::StackLogicalMax(1024)][..]);
// Here we spawn 6 validation jobs for the `halt` PVF and share those between 2 workers. Every
// 3rd job will have different set of executor parameters. All the workers should be killed
// and in this case the queue should respawn new workers with needed executor environment
// without waiting. The jobs will be executed in 3 batches, each running two jobs in parallel,
// and execution time would be roughly 3 * TEST_EXECUTION_TIMEOUT
let start = std::time::Instant::now();
futures::future::join_all((0u8..6).map(|i| {
host.validate_candidate(
halt::wasm_binary_unwrap(),
ValidationParams {
block_data: BlockData(Vec::new()),
parent_head: Default::default(),
relay_parent_number: 1,
relay_parent_storage_root: Default::default(),
},
match i % 3 {
0 => executor_params_1.clone(),
_ => executor_params_2.clone(),
},
)
}))
.await;
let duration = std::time::Instant::now().duration_since(start);
let min_duration = 3 * TEST_EXECUTION_TIMEOUT;
let max_duration = 4 * TEST_EXECUTION_TIMEOUT;
assert!(
duration >= min_duration,
"Expected duration {}ms to be greater than or equal to {}ms",
duration.as_millis(),
min_duration.as_millis()
);
assert!(
duration <= max_duration,
"Expected duration {}ms to be less than or equal to {}ms",
duration.as_millis(),
max_duration.as_millis()
);
}
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
// Test that deleting a prepared artifact does not lead to a dispute when we try to execute it.
#[tokio::test]
async fn deleting_prepared_artifact_does_not_dispute() {
let host = TestHost::new();
let cache_dir = host.cache_dir.path().clone();
let result = host
.validate_candidate(
halt::wasm_binary_unwrap(),
ValidationParams {
block_data: BlockData(Vec::new()),
parent_head: Default::default(),
relay_parent_number: 1,
relay_parent_storage_root: Default::default(),
},
Default::default(),
)
.await;
match result {
Err(ValidationError::InvalidCandidate(InvalidCandidate::HardTimeout)) => {},
r => panic!("{:?}", r),
}
// Delete the prepared artifact.
{
// Get the artifact path (asserting it exists).
let mut cache_dir: Vec<_> = std::fs::read_dir(cache_dir).unwrap().collect();
assert_eq!(cache_dir.len(), 1);
let artifact_path = cache_dir.pop().unwrap().unwrap();
// Delete the artifact.
std::fs::remove_file(artifact_path.path()).unwrap();
}
// Try to validate again, artifact should get recreated.
let result = host
.validate_candidate(
halt::wasm_binary_unwrap(),
ValidationParams {
block_data: BlockData(Vec::new()),
parent_head: Default::default(),
relay_parent_number: 1,
relay_parent_storage_root: Default::default(),
},
Default::default(),
)
.await;
match result {
Err(ValidationError::InvalidCandidate(InvalidCandidate::HardTimeout)) => {},
r => panic!("{:?}", r),
}
}