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refactor(cli): move op sanitizer to Rust (#22413)

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The format of the sanitizers will change a little bit:

- If multiple async ops leak and traces are on, we repeat the async op
header once per stack trace.
- All leaks are aggregated under a "Leaks detected:" banner as the new
timers are eventually going to be added, and these are neither ops nor
resources.
 - `1 async op` is now `An async op`
- If ops and resources leak, we show both (rather than op leaks masking
resources)

Follow-on to https://github.com/denoland/deno/pull/22226
This commit is contained in:
Matt Mastracci 2024-02-16 14:22:12 -07:00 committed by GitHub
parent c92717a1a4
commit 67a4231bb6
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10 changed files with 275 additions and 468 deletions
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191
cli/js/40_test.js
View file

@ -11,30 +11,21 @@ const {
op_test_event_step_result_ignored,
op_test_event_step_result_ok,
op_test_event_step_wait,
op_test_op_sanitizer_collect,
op_test_op_sanitizer_finish,
op_test_op_sanitizer_get_async_message,
op_test_op_sanitizer_report,
} = core.ops;
const {
ArrayPrototypeFilter,
ArrayPrototypeJoin,
ArrayPrototypePush,
ArrayPrototypeShift,
DateNow,
Error,
Map,
MapPrototypeGet,
MapPrototypeHas,
MapPrototypeSet,
Promise,
SafeArrayIterator,
SymbolToStringTag,
TypeError,
} = primordials;
import { setExitHandler } from "ext:runtime/30_os.js";
import { setTimeout } from "ext:deno_web/02_timers.js";
/**
* @typedef {{
@ -95,183 +86,6 @@ import { setTimeout } from "ext:deno_web/02_timers.js";
/** @type {Map<number, TestState | TestStepState>} */
const testStates = new Map();
const opSanitizerDelayResolveQueue = [];
let hasSetOpSanitizerDelayMacrotask = false;
// Even if every resource is closed by the end of a test, there can be a delay
// until the pending ops have all finished. This function returns a promise
// that resolves when it's (probably) fine to run the op sanitizer.
//
// This is implemented by adding a macrotask callback that runs after the
// all ready async ops resolve, and the timer macrotask. Using just a macrotask
// callback without delaying is sufficient, because when the macrotask callback
// runs after async op dispatch, we know that all async ops that can currently
// return `Poll::Ready` have done so, and have been dispatched to JS.
//
// Worker ops are an exception to this, because there is no way for the user to
// await shutdown of the worker from the thread calling `worker.terminate()`.
// Because of this, we give extra leeway for worker ops to complete, by waiting
// for a whole millisecond if there are pending worker ops.
function opSanitizerDelay(hasPendingWorkerOps) {
if (!hasSetOpSanitizerDelayMacrotask) {
core.setMacrotaskCallback(handleOpSanitizerDelayMacrotask);
hasSetOpSanitizerDelayMacrotask = true;
}
const p = new Promise((resolve) => {
// Schedule an async op to complete immediately to ensure the macrotask is
// run. We rely on the fact that enqueueing the resolver callback during the
// timeout callback will mean that the resolver gets called in the same
// event loop tick as the timeout callback.
setTimeout(() => {
ArrayPrototypePush(opSanitizerDelayResolveQueue, resolve);
}, hasPendingWorkerOps ? 1 : 0);
});
return p;
}
function handleOpSanitizerDelayMacrotask() {
const resolve = ArrayPrototypeShift(opSanitizerDelayResolveQueue);
if (resolve) {
resolve();
return opSanitizerDelayResolveQueue.length === 0;
}
return undefined; // we performed no work, so can skip microtasks checkpoint
}
let opIdHostRecvMessage = -1;
let opIdHostRecvCtrl = -1;
let opNames = null;
function populateOpNames() {
opNames = core.opNames();
opIdHostRecvMessage = opNames.indexOf("op_host_recv_message");
opIdHostRecvCtrl = opNames.indexOf("op_host_recv_ctrl");
}
// Wrap test function in additional assertion that makes sure
// the test case does not leak async "ops" - ie. number of async
// completed ops after the test is the same as number of dispatched
// ops. Note that "unref" ops are ignored since in nature that are
// optional.
function assertOps(fn) {
/** @param desc {TestDescription | TestStepDescription} */
return async function asyncOpSanitizer(desc) {
let hasTraces = false;
if (opNames === null) populateOpNames();
const res = op_test_op_sanitizer_collect(
desc.id,
false,
opIdHostRecvMessage,
opIdHostRecvCtrl,
);
if (res !== 0) {
await opSanitizerDelay(res === 2);
op_test_op_sanitizer_collect(
desc.id,
true,
opIdHostRecvMessage,
opIdHostRecvCtrl,
);
}
const preTraces = core.getAllOpCallTraces();
let postTraces;
let report = null;
try {
const innerResult = await fn(desc);
if (innerResult) return innerResult;
} finally {
let res = op_test_op_sanitizer_finish(
desc.id,
false,
opIdHostRecvMessage,
opIdHostRecvCtrl,
);
if (res === 1 || res === 2) {
await opSanitizerDelay(res === 2);
res = op_test_op_sanitizer_finish(
desc.id,
true,
opIdHostRecvMessage,
opIdHostRecvCtrl,
);
}
postTraces = core.getAllOpCallTraces();
if (res === 3) {
report = op_test_op_sanitizer_report(desc.id);
}
}
if (report === null) return null;
const details = [];
for (const opReport of report) {
const opName = opNames[opReport.id];
const diff = opReport.diff;
if (diff > 0) {
const [name, hint] = op_test_op_sanitizer_get_async_message(opName);
const count = diff;
let message = `${count} async operation${
count === 1 ? "" : "s"
} to ${name} ${
count === 1 ? "was" : "were"
} started in this test, but never completed.`;
if (hint) {
message += ` This is often caused by not ${hint}.`;
}
const traces = [];
for (const [id, stack] of postTraces) {
if (MapPrototypeHas(preTraces, id)) continue;
ArrayPrototypePush(traces, stack);
}
if (traces.length === 1) {
message += " The operation was started here:\n";
message += traces[0];
} else if (traces.length > 1) {
message += " The operations were started here:\n";
message += ArrayPrototypeJoin(traces, "\n\n");
}
hasTraces |= traces.length > 0;
ArrayPrototypePush(details, message);
} else if (diff < 0) {
const [name, hint] = op_test_op_sanitizer_get_async_message(opName);
const count = -diff;
let message = `${count} async operation${
count === 1 ? "" : "s"
} to ${name} ${
count === 1 ? "was" : "were"
} started before this test, but ${
count === 1 ? "was" : "were"
} completed during the test. Async operations should not complete in a test if they were not started in that test.`;
if (hint) {
message += ` This is often caused by not ${hint}.`;
}
const traces = [];
for (const [id, stack] of preTraces) {
if (MapPrototypeHas(postTraces, id)) continue;
ArrayPrototypePush(traces, stack);
}
if (traces.length === 1) {
message += " The operation was started here:\n";
message += traces[0];
} else if (traces.length > 1) {
message += " The operations were started here:\n";
message += ArrayPrototypeJoin(traces, "\n\n");
}
hasTraces |= traces.length > 0;
ArrayPrototypePush(details, message);
} else {
throw new Error("unreachable");
}
}
return {
failed: { leakedOps: [details, hasTraces] },
};
};
}
// Wrap test function in additional assertion that makes sure
// that the test case does not accidentally exit prematurely.
function assertExit(fn, isTest) {
@ -474,7 +288,7 @@ function testInner(
testDesc.name,
testDesc.ignore,
testDesc.only,
false, /*testDesc.sanitizeOps*/
testDesc.sanitizeOps,
testDesc.sanitizeResources,
testDesc.location.fileName,
testDesc.location.lineNumber,
@ -663,9 +477,6 @@ function createTestContext(desc) {
*/
function wrapTest(desc) {
let testFn = wrapInner(desc.fn);
if (desc.sanitizeOps) {
testFn = assertOps(testFn);
}
if (desc.sanitizeExit) {
testFn = assertExit(testFn, true);
}

201
cli/ops/testing.rs
View file

@ -1,6 +1,5 @@
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use crate::tools::test::fmt::OP_DETAILS;
use crate::tools::test::TestDescription;
use crate::tools::test::TestEvent;
use crate::tools::test::TestEventSender;
@ -15,17 +14,11 @@ use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::v8;
use deno_core::ModuleSpecifier;
use deno_core::OpMetricsSummary;
use deno_core::OpMetricsSummaryTracker;
use deno_core::OpState;
use deno_runtime::deno_fetch::reqwest;
use deno_runtime::permissions::create_child_permissions;
use deno_runtime::permissions::ChildPermissionsArg;
use deno_runtime::permissions::PermissionsContainer;
use serde::Serialize;
use std::collections::hash_map::Entry;
use std::collections::HashMap;
use std::rc::Rc;
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering;
use uuid::Uuid;
@ -45,10 +38,6 @@ deno_core::extension!(deno_test,
op_test_event_step_result_ok,
op_test_event_step_result_ignored,
op_test_event_step_result_failed,
op_test_op_sanitizer_collect,
op_test_op_sanitizer_finish,
op_test_op_sanitizer_report,
op_test_op_sanitizer_get_async_message,
],
options = {
sender: TestEventSender,
@ -56,7 +45,6 @@ deno_core::extension!(deno_test,
state = |state, options| {
state.put(options.sender);
state.put(TestContainer::default());
state.put(TestOpSanitizers::default());
},
);
@ -245,192 +233,3 @@ fn op_test_event_step_result_failed(
))
.ok();
}
#[derive(Default)]
struct TestOpSanitizers(HashMap<u32, TestOpSanitizerState>);
enum TestOpSanitizerState {
Collecting { metrics: Vec<OpMetricsSummary> },
Finished { report: Vec<TestOpSanitizerReport> },
}
fn try_collect_metrics(
metrics: &OpMetricsSummaryTracker,
force: bool,
op_id_host_recv_msg: usize,
op_id_host_recv_ctrl: usize,
) -> Result<std::cell::Ref<Vec<OpMetricsSummary>>, bool> {
let metrics = metrics.per_op();
let host_recv_msg = metrics
.get(op_id_host_recv_msg)
.map(OpMetricsSummary::has_outstanding_ops)
.unwrap_or(false);
let host_recv_ctrl = metrics
.get(op_id_host_recv_ctrl)
.map(OpMetricsSummary::has_outstanding_ops)
.unwrap_or(false);
for op_metric in metrics.iter() {
if op_metric.has_outstanding_ops() && !force {
return Err(host_recv_msg || host_recv_ctrl);
}
}
Ok(metrics)
}
#[op2(fast)]
#[smi]
// Returns:
// 0 - success
// 1 - for more accurate results, spin event loop and call again with force=true
// 2 - for more accurate results, delay(1ms) and call again with force=true
fn op_test_op_sanitizer_collect(
state: &mut OpState,
#[smi] id: u32,
force: bool,
#[smi] op_id_host_recv_msg: usize,
#[smi] op_id_host_recv_ctrl: usize,
) -> Result<u8, AnyError> {
let metrics = state.borrow::<Rc<OpMetricsSummaryTracker>>();
let metrics = match try_collect_metrics(
metrics,
force,
op_id_host_recv_msg,
op_id_host_recv_ctrl,
) {
Ok(metrics) => metrics,
Err(false) => {
return Ok(1);
}
Err(true) => {
return Ok(2);
}
}
.clone();
let op_sanitizers = state.borrow_mut::<TestOpSanitizers>();
match op_sanitizers.0.entry(id) {
Entry::Vacant(entry) => {
entry.insert(TestOpSanitizerState::Collecting { metrics });
}
Entry::Occupied(_) => {
return Err(generic_error(format!(
"Test metrics already being collected for test id {id}",
)));
}
}
Ok(0)
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct TestOpSanitizerReport {
id: usize,
diff: i64,
}
#[op2(fast)]
#[smi]
// Returns:
// 0 - sanitizer finished with no pending ops
// 1 - for more accurate results, spin event loop and call again with force=true
// 2 - for more accurate results, delay(1ms) and call again with force=true
// 3 - sanitizer finished with pending ops, collect the report with op_test_op_sanitizer_report
fn op_test_op_sanitizer_finish(
state: &mut OpState,
#[smi] id: u32,
force: bool,
#[smi] op_id_host_recv_msg: usize,
#[smi] op_id_host_recv_ctrl: usize,
) -> Result<u8, AnyError> {
// Drop `fetch` connection pool at the end of a test
state.try_take::<reqwest::Client>();
let metrics = state.borrow::<Rc<OpMetricsSummaryTracker>>();
// Generate a report of pending ops
let report = {
let after_metrics = match try_collect_metrics(
metrics,
force,
op_id_host_recv_msg,
op_id_host_recv_ctrl,
) {
Ok(metrics) => metrics,
Err(false) => {
return Ok(1);
}
Err(true) => {
return Ok(2);
}
};
let op_sanitizers = state.borrow::<TestOpSanitizers>();
let before_metrics = match op_sanitizers.0.get(&id) {
Some(TestOpSanitizerState::Collecting { metrics }) => metrics,
_ => {
return Err(generic_error(format!(
"Metrics not collected before for test id {id}",
)));
}
};
let mut report = vec![];
for (id, (before, after)) in
before_metrics.iter().zip(after_metrics.iter()).enumerate()
{
let async_pending_before =
before.ops_dispatched_async - before.ops_completed_async;
let async_pending_after =
after.ops_dispatched_async - after.ops_completed_async;
let diff = async_pending_after as i64 - async_pending_before as i64;
if diff != 0 {
report.push(TestOpSanitizerReport { id, diff });
}
}
report
};
let op_sanitizers = state.borrow_mut::<TestOpSanitizers>();
if report.is_empty() {
op_sanitizers
.0
.remove(&id)
.expect("TestOpSanitizerState::Collecting");
Ok(0)
} else {
op_sanitizers
.0
.insert(id, TestOpSanitizerState::Finished { report })
.expect("TestOpSanitizerState::Collecting");
Ok(3)
}
}
#[op2]
#[serde]
fn op_test_op_sanitizer_report(
state: &mut OpState,
#[smi] id: u32,
) -> Result<Vec<TestOpSanitizerReport>, AnyError> {
let op_sanitizers = state.borrow_mut::<TestOpSanitizers>();
match op_sanitizers.0.remove(&id) {
Some(TestOpSanitizerState::Finished { report }) => Ok(report),
_ => Err(generic_error(format!(
"Metrics not finished collecting for test id {id}",
))),
}
}
#[op2]
#[serde]
fn op_test_op_sanitizer_get_async_message(
#[string] op_name: &str,
) -> (String, Option<String>) {
if let Some(output) = OP_DETAILS.get(op_name) {
(output[0].to_string(), Some(output[1].to_string()))
} else {
(op_name.to_string(), None)
}
}

113
cli/tools/test/fmt.rs
View file

@ -82,17 +82,23 @@ pub fn format_test_error(js_error: &JsError) -> String {
format_js_error(&js_error)
}
pub fn format_sanitizer_diff(diff: RuntimeActivityDiff) -> Vec<String> {
let mut output = format_sanitizer_accum(diff.appeared, true);
output.extend(format_sanitizer_accum(diff.disappeared, false));
output.sort();
output
pub fn format_sanitizer_diff(
diff: RuntimeActivityDiff,
) -> (Vec<String>, Vec<String>) {
let (mut messages, trailers) = format_sanitizer_accum(diff.appeared, true);
let disappeared = format_sanitizer_accum(diff.disappeared, false);
messages.extend(disappeared.0);
messages.sort();
let mut trailers = BTreeSet::from_iter(trailers);
trailers.extend(disappeared.1);
(messages, trailers.into_iter().collect::<Vec<_>>())
}
fn format_sanitizer_accum(
activities: Vec<RuntimeActivity>,
appeared: bool,
) -> Vec<String> {
) -> (Vec<String>, Vec<String>) {
// Aggregate the sanitizer information
let mut accum = HashMap::new();
for activity in activities {
let item = format_sanitizer_accum_item(activity);
@ -100,21 +106,46 @@ fn format_sanitizer_accum(
}
let mut output = vec![];
for ((item_type, item_name), count) in accum.into_iter() {
let mut needs_trace_ops = false;
for ((item_type, item_name, trace), count) in accum.into_iter() {
if item_type == RuntimeActivityType::Resource {
// TODO(mmastrac): until we implement the new timers and op sanitization, these must be ignored in this path
if item_name == "timer" {
continue;
}
let (name, action1, action2) = pretty_resource_name(&item_name);
let hint = resource_close_hint(&item_name);
if appeared {
output.push(format!("{name} was {action1} during the test, but not {action2} during the test. {hint}"));
let value = if appeared {
format!("{name} was {action1} during the test, but not {action2} during the test. {hint}")
} else {
output.push(format!("{name} was {action1} before the test started, but was {action2} during the test. \
Do not close resources in a test that were not created during that test."));
}
format!("{name} was {action1} before the test started, but was {action2} during the test. \
Do not close resources in a test that were not created during that test.")
};
output.push(value);
} else if item_type == RuntimeActivityType::AsyncOp {
let (count_str, plural, tense) = if count == 1 {
(Cow::Borrowed("An"), "", "was")
} else {
(Cow::Owned(count.to_string()), "s", "were")
};
let phrase = if appeared {
"started in this test, but never completed"
} else {
"started before the test, but completed during the test. Async operations should not complete in a test if they were not started in that test"
};
let mut value = if let Some([operation, hint]) =
OP_DETAILS.get(&item_name)
{
format!("{count_str} async operation{plural} to {operation} {tense} {phrase}. This is often caused by not {hint}.")
} else {
format!(
"{count_str} async call{plural} to {item_name} {tense} {phrase}."
)
};
value += &if let Some(trace) = trace {
format!(" The operation {tense} started here:\n{trace}")
} else {
needs_trace_ops = true;
String::new()
};
output.push(value);
} else {
// TODO(mmastrac): this will be done in a later PR
unimplemented!(
@ -125,18 +156,25 @@ fn format_sanitizer_accum(
);
}
}
output
if needs_trace_ops {
(output, vec!["To get more details where ops were leaked, run again with --trace-ops flag.".to_owned()])
} else {
(output, vec![])
}
}
fn format_sanitizer_accum_item(
activity: RuntimeActivity,
) -> (RuntimeActivityType, Cow<'static, str>) {
) -> (RuntimeActivityType, Cow<'static, str>, Option<String>) {
let activity_type = activity.activity();
match activity {
RuntimeActivity::AsyncOp(_, name, _) => (activity_type, name.into()),
RuntimeActivity::Interval(_) => (activity_type, "".into()),
RuntimeActivity::Resource(_, name) => (activity_type, name.into()),
RuntimeActivity::Timer(_) => (activity_type, "".into()),
// TODO(mmastrac): OpCallTrace needs to be Eq
RuntimeActivity::AsyncOp(_, name, trace) => {
(activity_type, name.into(), trace.map(|x| x.to_string()))
}
RuntimeActivity::Interval(_) => (activity_type, "".into(), None),
RuntimeActivity::Resource(_, name) => (activity_type, name.into(), None),
RuntimeActivity::Timer(_) => (activity_type, "".into(), None),
}
}
@ -215,9 +253,6 @@ fn resource_close_hint(name: &str) -> &'static str {
}
}
// An async operation to $0 was started in this test, but never completed. This is often caused by not $1.
// An async operation to $0 was started in this test, but never completed. Async operations should not complete in a test if they were not started in that test.
// deno-fmt-ignore
pub const OP_DETAILS: phf::Map<&'static str, [&'static str; 2]> = phf_map! {
"op_blob_read_part" => ["read from a Blob or File", "awaiting the result of a Blob or File read"],
"op_broadcast_recv" => ["receive a message from a BroadcastChannel", "closing the BroadcastChannel"],
@ -295,3 +330,31 @@ pub const OP_DETAILS: phf::Map<&'static str, [&'static str; 2]> = phf_map! {
"op_ws_send_ping" => ["send a message on a WebSocket", "closing a `WebSocket` or `WebSocketStream`"],
"op_spawn_wait" => ["wait for a subprocess to exit", "awaiting the result of a `Deno.Process#status` call"],
};
#[cfg(test)]
mod tests {
use deno_core::stats::RuntimeActivity;
macro_rules! leak_format_test {
($name:ident, $appeared:literal, [$($activity:expr),*], $expected:literal) => {
#[test]
fn $name() {
let (leaks, trailer_notes) = super::format_sanitizer_accum(vec![$($activity),*], $appeared);
let mut output = String::new();
for leak in leaks {
output += &format!(" - {leak}\n");
}
for trailer in trailer_notes {
output += &format!("{trailer}\n");
}
assert_eq!(output, $expected);
}
}
}
// https://github.com/denoland/deno/issues/13729
// https://github.com/denoland/deno/issues/13938
leak_format_test!(op_unknown, true, [RuntimeActivity::AsyncOp(0, "op_unknown", None)],
" - An async call to op_unknown was started in this test, but never completed.\n\
To get more details where ops were leaked, run again with --trace-ops flag.\n");
}

210
cli/tools/test/mod.rs
View file

@ -34,13 +34,15 @@ use deno_core::error::AnyError;
use deno_core::error::JsError;
use deno_core::futures::future;
use deno_core::futures::stream;
use deno_core::futures::task::noop_waker;
use deno_core::futures::FutureExt;
use deno_core::futures::StreamExt;
use deno_core::located_script_name;
use deno_core::parking_lot::Mutex;
use deno_core::serde_v8;
use deno_core::stats::RuntimeActivity;
use deno_core::stats::RuntimeActivityDiff;
use deno_core::stats::RuntimeActivityStats;
use deno_core::stats::RuntimeActivityStatsFactory;
use deno_core::stats::RuntimeActivityStatsFilter;
use deno_core::unsync::spawn;
use deno_core::unsync::spawn_blocking;
@ -68,6 +70,7 @@ use std::collections::BTreeSet;
use std::collections::HashMap;
use std::collections::HashSet;
use std::fmt::Write as _;
use std::future::poll_fn;
use std::io::Read;
use std::io::Write;
use std::num::NonZeroUsize;
@ -76,7 +79,7 @@ use std::sync::atomic::AtomicBool;
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering;
use std::sync::Arc;
use std::task::Context;
use std::task::Poll;
use std::time::Duration;
use std::time::Instant;
use std::time::SystemTime;
@ -98,6 +101,9 @@ use reporters::PrettyTestReporter;
use reporters::TapTestReporter;
use reporters::TestReporter;
/// How many times we're allowed to spin the event loop before considering something a leak.
const MAX_SANITIZER_LOOP_SPINS: usize = 16;
/// The test mode is used to determine how a specifier is to be tested.
#[derive(Debug, Clone, Eq, PartialEq)]
pub enum TestMode {
@ -210,8 +216,7 @@ pub enum TestFailure {
JsError(Box<JsError>),
FailedSteps(usize),
IncompleteSteps,
LeakedOps(Vec<String>, bool), // Details, isOpCallTracingEnabled
LeakedResources(Vec<String>), // Details
Leaked(Vec<String>, Vec<String>), // Details, trailer notes
// The rest are for steps only.
Incomplete,
OverlapsWithSanitizers(IndexSet<String>), // Long names of overlapped tests
@ -226,20 +231,13 @@ impl ToString for TestFailure {
TestFailure::FailedSteps(n) => format!("{} test steps failed.", n),
TestFailure::IncompleteSteps => "Completed while steps were still running. Ensure all steps are awaited with `await t.step(...)`.".to_string(),
TestFailure::Incomplete => "Didn't complete before parent. Await step with `await t.step(...)`.".to_string(),
TestFailure::LeakedOps(details, is_op_call_tracing_enabled) => {
let mut string = "Leaking async ops:".to_string();
TestFailure::Leaked(details, trailer_notes) => {
let mut string = "Leaks detected:".to_string();
for detail in details {
string.push_str(&format!("\n - {}", detail));
string.push_str(&format!("\n - {detail}"));
}
if !is_op_call_tracing_enabled {
string.push_str("\nTo get more details where ops were leaked, run again with --trace-ops flag.");
}
string
}
TestFailure::LeakedResources(details) => {
let mut string = "Leaking resources:".to_string();
for detail in details {
string.push_str(&format!("\n - {}", detail));
for trailer in trailer_notes {
string.push_str(&format!("\n{trailer}"));
}
string
}
@ -540,6 +538,25 @@ pub fn worker_has_tests(worker: &mut MainWorker) -> bool {
!state.borrow::<ops::testing::TestContainer>().0.is_empty()
}
/// Yields to tokio to allow async work to process, and then polls
/// the event loop once.
#[must_use = "The event loop result should be checked"]
pub async fn poll_event_loop(worker: &mut MainWorker) -> Result<(), AnyError> {
// Allow any ops that to do work in the tokio event loop to do so
tokio::task::yield_now().await;
// Spin the event loop once
poll_fn(|cx| {
if let Poll::Ready(Err(err)) = worker
.js_runtime
.poll_event_loop(cx, PollEventLoopOptions::default())
{
return Poll::Ready(Err(err));
}
Poll::Ready(Ok(()))
})
.await
}
pub async fn run_tests_for_worker(
worker: &mut MainWorker,
specifier: &ModuleSpecifier,
@ -574,11 +591,43 @@ pub async fn run_tests_for_worker(
}))?;
let mut had_uncaught_error = false;
let stats = worker.js_runtime.runtime_activity_stats_factory();
let ops = worker.js_runtime.op_names();
// These particular ops may start and stop independently of tests, so we just filter them out
// completely.
let op_id_host_recv_message = ops
.iter()
.position(|op| *op == "op_host_recv_message")
.unwrap();
let op_id_host_recv_ctrl = ops
.iter()
.position(|op| *op == "op_host_recv_ctrl")
.unwrap();
// For consistency between tests with and without sanitizers, we _always_ include
// the actual sanitizer capture before and after a test, but a test that ignores resource
// or op sanitization simply doesn't throw if one of these constraints is violated.
let mut filter = RuntimeActivityStatsFilter::default();
filter = filter.with_resources();
filter = filter.with_ops();
filter = filter.omit_op(op_id_host_recv_ctrl as _);
filter = filter.omit_op(op_id_host_recv_message as _);
for (desc, function) in tests {
if fail_fast_tracker.should_stop() {
break;
}
// Each test needs a fresh reqwest connection pool to avoid inter-test weirdness with connections
// failing. If we don't do this, a connection to a test server we just tore down might be re-used in
// the next test.
// TODO(mmastrac): this should be some sort of callback that we can implement for any subsystem
worker
.js_runtime
.op_state()
.borrow_mut()
.try_take::<deno_runtime::deno_fetch::reqwest::Client>();
if desc.ignore {
sender.send(TestEvent::Result(desc.id, TestResult::Ignored, 0))?;
continue;
@ -593,24 +642,10 @@ pub async fn run_tests_for_worker(
// responded to settle.
// TODO(mmastrac): we should provide an API to poll the event loop until no futher
// progress is made.
{
let waker = noop_waker();
let mut cx = Context::from_waker(&waker);
let _ = worker
.js_runtime
.poll_event_loop(&mut cx, PollEventLoopOptions::default());
}
poll_event_loop(worker).await?;
let mut filter = RuntimeActivityStatsFilter::default();
if desc.sanitize_resources {
filter = filter.with_resources();
}
let before = if !filter.is_empty() {
Some(stats.clone().capture(&filter))
} else {
None
};
// We always capture stats, regardless of sanitization state
let before = stats.clone().capture(&filter);
let earlier = SystemTime::now();
let call = worker.js_runtime.call(&function);
@ -635,12 +670,21 @@ pub async fn run_tests_for_worker(
}
}
};
if let Some(before) = before {
let after = stats.clone().capture(&filter);
let diff = RuntimeActivityStats::diff(&before, &after);
let formatted = format_sanitizer_diff(diff);
// Await activity stabilization
if let Some(diff) = wait_for_activity_to_stabilize(
worker,
&stats,
&filter,
before,
desc.sanitize_ops,
desc.sanitize_resources,
)
.await?
{
let (formatted, trailer_notes) = format_sanitizer_diff(diff);
if !formatted.is_empty() {
let failure = TestFailure::LeakedResources(formatted);
let failure = TestFailure::Leaked(formatted, trailer_notes);
let elapsed = SystemTime::now().duration_since(earlier)?.as_millis();
sender.send(TestEvent::Result(
desc.id,
@ -663,6 +707,96 @@ pub async fn run_tests_for_worker(
Ok(())
}
/// Removes timer resources and op_sleep_interval calls. When an interval is started before a test
/// and resolves during a test, there's a false alarm.
fn preprocess_timer_activity(activities: &mut Vec<RuntimeActivity>) {
// TODO(mmastrac): Once we get to the new timer implementation, all of this
// code can go away and be replaced by a proper timer sanitizer.
let mut timer_resource_leaked = false;
// First, search for any timer resources which will indicate that we have an interval leak
activities.retain(|activity| {
if let RuntimeActivity::Resource(_, name) = activity {
if name == "timer" {
timer_resource_leaked = true;
return false;
}
}
true
});
// If we've leaked a timer resource, we un-mute op_sleep_interval calls. Otherwise, we remove
// them.
if !timer_resource_leaked {
activities.retain(|activity| {
if let RuntimeActivity::AsyncOp(_, op, _) = activity {
*op != "op_sleep_interval"
} else {
true
}
})
}
}
async fn wait_for_activity_to_stabilize(
worker: &mut MainWorker,
stats: &RuntimeActivityStatsFactory,
filter: &RuntimeActivityStatsFilter,
before: RuntimeActivityStats,
sanitize_ops: bool,
sanitize_resources: bool,
) -> Result<Option<RuntimeActivityDiff>, AnyError> {
// First, check to see if there's any diff at all. If not, just continue.
let after = stats.clone().capture(filter);
let mut diff = RuntimeActivityStats::diff(&before, &after);
preprocess_timer_activity(&mut diff.appeared);
preprocess_timer_activity(&mut diff.disappeared);
if diff.appeared.is_empty() && diff.disappeared.is_empty() {
// No activity, so we return early
return Ok(None);
}
// We allow for up to MAX_SANITIZER_LOOP_SPINS to get to a point where there is no difference.
// TODO(mmastrac): We could be much smarter about this if we had the concept of "progress" in
// an event loop tick. Ideally we'd be able to tell if we were spinning and doing nothing, or
// spinning and resolving ops.
for _ in 0..MAX_SANITIZER_LOOP_SPINS {
// There was a diff, so let the event loop run once
poll_event_loop(worker).await?;
let after = stats.clone().capture(filter);
diff = RuntimeActivityStats::diff(&before, &after);
preprocess_timer_activity(&mut diff.appeared);
preprocess_timer_activity(&mut diff.disappeared);
if diff.appeared.is_empty() && diff.disappeared.is_empty() {
return Ok(None);
}
}
if !sanitize_ops {
diff
.appeared
.retain(|activity| !matches!(activity, RuntimeActivity::AsyncOp(..)));
diff
.disappeared
.retain(|activity| !matches!(activity, RuntimeActivity::AsyncOp(..)));
}
if !sanitize_resources {
diff
.appeared
.retain(|activity| !matches!(activity, RuntimeActivity::Resource(..)));
diff
.disappeared
.retain(|activity| !matches!(activity, RuntimeActivity::Resource(..)));
}
Ok(if diff.appeared.is_empty() && diff.disappeared.is_empty() {
None
} else {
Some(diff)
})
}
fn extract_files_from_regex_blocks(
specifier: &ModuleSpecifier,
source: &str,

4
tests/testdata/test/sanitizer/ops_sanitizer_closed_inside_started_before.out vendored
View file

@ -5,8 +5,8 @@ test 1 ... FAILED [WILDCARD]
ERRORS
test 1 => [WILDCARD]/ops_sanitizer_closed_inside_started_before.ts:[WILDCARD]
error: Leaking async ops:
- 1 async operation to sleep for a duration was started before this test, but was completed during the test. Async operations should not complete in a test if they were not started in that test. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
error: Leaks detected:
- An async operation to sleep for a duration was started before the test, but completed during the test. Async operations should not complete in a test if they were not started in that test. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
at [WILDCARD]
at [WILDCARD]/ops_sanitizer_closed_inside_started_before.ts:[WILDCARD]

12
tests/testdata/test/sanitizer/ops_sanitizer_multiple_timeout_tests.out vendored
View file

@ -6,14 +6,14 @@ test 2 ... FAILED ([WILDCARD])
ERRORS
test 1 => [WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD]
error: Leaking async ops:
- 2 async operations to sleep for a duration were started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operations were started here:
error: Leaks detected:
- An async operation to sleep for a duration was started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
at [WILDCARD]
at setTimeout ([WILDCARD])
at test ([WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD])
at [WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:8:27
at [WILDCARD]
- An async operation to sleep for a duration was started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
at [WILDCARD]
at setTimeout ([WILDCARD])
at test ([WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD])
@ -21,14 +21,14 @@ error: Leaking async ops:
at [WILDCARD]
test 2 => [WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD]
error: Leaking async ops:
- 2 async operations to sleep for a duration were started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operations were started here:
error: Leaks detected:
- An async operation to sleep for a duration was started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
at [WILDCARD]
at setTimeout ([WILDCARD])
at test ([WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD])
at [WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:10:27
at [WILDCARD]
- An async operation to sleep for a duration was started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
at [WILDCARD]
at setTimeout ([WILDCARD])
at test ([WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD])

4
tests/testdata/test/sanitizer/ops_sanitizer_multiple_timeout_tests_no_trace.out vendored
View file

@ -6,12 +6,12 @@ test 2 ... FAILED ([WILDCARD])
ERRORS
test 1 => [WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD]
error: Leaking async ops:
error: Leaks detected:
- 2 async operations to sleep for a duration were started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call.
To get more details where ops were leaked, run again with --trace-ops flag.
test 2 => [WILDCARD]/ops_sanitizer_multiple_timeout_tests.ts:[WILDCARD]
error: Leaking async ops:
error: Leaks detected:
- 2 async operations to sleep for a duration were started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call.
To get more details where ops were leaked, run again with --trace-ops flag.

4
tests/testdata/test/sanitizer/ops_sanitizer_unstable.out vendored
View file

@ -6,8 +6,8 @@ leak interval ... FAILED ([WILDCARD])
ERRORS
leak interval => [WILDCARD]/ops_sanitizer_unstable.ts:[WILDCARD]
error: Leaking async ops:
- 1 async operation to sleep for a duration was started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
error: Leaks detected:
- An async operation to sleep for a duration was started in this test, but never completed. This is often caused by not cancelling a `setTimeout` or `setInterval` call. The operation was started here:
at [WILDCARD]
at setInterval ([WILDCARD])
at fn ([WILDCARD]/ops_sanitizer_unstable.ts:[WILDCARD])

2
tests/testdata/test/sanitizer/resource_sanitizer.out vendored
View file

@ -5,7 +5,7 @@ leak ... FAILED ([WILDCARD])
ERRORS
leak => [WILDCARD]/resource_sanitizer.ts:[WILDCARD]
error: Leaking resources:
error: Leaks detected:
[UNORDERED_START]
- The stdin pipe was opened before the test started, but was closed during the test. Do not close resources in a test that were not created during that test.
- A file was opened during the test, but not closed during the test. Close the file handle by calling `file.close()`.

2
tests/unit/ops_test.ts
View file

@ -1,6 +1,6 @@
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
const EXPECTED_OP_COUNT = 15;
const EXPECTED_OP_COUNT = 11;
Deno.test(function checkExposedOps() {
// @ts-ignore TS doesn't allow to index with symbol