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test: use async/await for gc #773

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test: use async/await for gc #773

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5d36882
test: string tests together
Jul 25, 2020
506b995
remove async/await pairs where a promise could be returned
Jul 26, 2020
a152387
remove unused reject()
Jul 26, 2020
5ba003c
remove race from tsfn sum test
Jul 27, 2020
7292064
remove cancel test
Jul 27, 2020
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47 changes: 28 additions & 19 deletions test/addon_data.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,29 +5,37 @@ const { spawn } = require('child_process');
const readline = require('readline');
const path = require('path');

test(path.resolve(__dirname, `./build/${buildType}/binding.node`));
test(path.resolve(__dirname, `./build/${buildType}/binding_noexcept.node`));
module.exports =
test(path.resolve(__dirname, `./build/${buildType}/binding.node`))
.then(() =>
test(path.resolve(__dirname,
`./build/${buildType}/binding_noexcept.node`)));

// Make sure the instance data finalizer is called at process exit. If the hint
// is non-zero, it will be printed out by the child process.
function testFinalizer(bindingName, hint, expected) {
bindingName = bindingName.split('\\').join('\\\\');
const child = spawn(process.execPath, [
'-e',
`require('${bindingName}').addon_data(${hint}).verbose = true;`
]);
const actual = [];
readline
.createInterface({ input: child.stderr })
.on('line', (line) => {
if (expected.indexOf(line) >= 0) {
actual.push(line);
}
})
.on('close', () => assert.deepStrictEqual(expected, actual));
return new Promise((resolve) => {
bindingName = bindingName.split('\\').join('\\\\');
const child = spawn(process.execPath, [
'-e',
`require('${bindingName}').addon_data(${hint}).verbose = true;`
]);
const actual = [];
readline
.createInterface({ input: child.stderr })
.on('line', (line) => {
if (expected.indexOf(line) >= 0) {
actual.push(line);
}
})
.on('close', () => {
assert.deepStrictEqual(expected, actual);
resolve();
});
});
}

function test(bindingName) {
async function test(bindingName) {
const binding = require(bindingName).addon_data(0);

// Make sure it is possible to get/set instance data.
Expand All @@ -37,6 +45,7 @@ function test(bindingName) {
binding.verbose = false;
assert.strictEqual(binding.verbose.verbose, false);

testFinalizer(bindingName, 0, ['addon_data: Addon::~Addon']);
testFinalizer(bindingName, 42, ['addon_data: Addon::~Addon', 'hint: 42']);
await testFinalizer(bindingName, 0, ['addon_data: Addon::~Addon']);
await testFinalizer(bindingName, 42,
['addon_data: Addon::~Addon', 'hint: 42']);
}
28 changes: 9 additions & 19 deletions test/arraybuffer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,11 +3,11 @@ const buildType = process.config.target_defaults.default_configuration;
const assert = require('assert');
const testUtil = require('./testUtil');

test(require(`./build/${buildType}/binding.node`));
test(require(`./build/${buildType}/binding_noexcept.node`));
module.exports = test(require(`./build/${buildType}/binding.node`))
.then(() => test(require(`./build/${buildType}/binding_noexcept.node`)));

function test(binding) {
testUtil.runGCTests([
return testUtil.runGCTests([
'Internal ArrayBuffer',
() => {
const test = binding.arraybuffer.createBuffer();
Expand All @@ -25,10 +25,8 @@ function test(binding) {
assert.ok(test instanceof ArrayBuffer);
assert.strictEqual(0, binding.arraybuffer.getFinalizeCount());
},
() => {
global.gc();
assert.strictEqual(0, binding.arraybuffer.getFinalizeCount());
},

() => assert.strictEqual(0, binding.arraybuffer.getFinalizeCount()),

'External ArrayBuffer with finalizer',
() => {
Expand All @@ -37,12 +35,8 @@ function test(binding) {
assert.ok(test instanceof ArrayBuffer);
assert.strictEqual(0, binding.arraybuffer.getFinalizeCount());
},
() => {
global.gc();
},
() => {
assert.strictEqual(1, binding.arraybuffer.getFinalizeCount());
},

() => assert.strictEqual(1, binding.arraybuffer.getFinalizeCount()),

'External ArrayBuffer with finalizer hint',
() => {
Expand All @@ -51,12 +45,8 @@ function test(binding) {
assert.ok(test instanceof ArrayBuffer);
assert.strictEqual(0, binding.arraybuffer.getFinalizeCount());
},
() => {
global.gc();
},
() => {
assert.strictEqual(1, binding.arraybuffer.getFinalizeCount());
},

() => assert.strictEqual(1, binding.arraybuffer.getFinalizeCount()),

'ArrayBuffer with constructor',
() => {
Expand Down
9 changes: 0 additions & 9 deletions test/asyncprogressqueueworker.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -37,14 +37,6 @@ class TestWorker : public AsyncProgressQueueWorker<ProgressData> {
worker->Queue();
}

static void CancelWork(const CallbackInfo& info) {
auto wrap = info[0].As<Napi::External<TestWorker>>();
auto worker = wrap.Data();
// We cannot cancel a worker if it got started. So we have to do a quick cancel.
worker->Queue();
worker->Cancel();
}

protected:
void Execute(const ExecutionProgress& progress) override {
using namespace std::chrono_literals;
Expand Down Expand Up @@ -89,7 +81,6 @@ Object InitAsyncProgressQueueWorker(Env env) {
Object exports = Object::New(env);
exports["createWork"] = Function::New(env, TestWorker::CreateWork);
exports["queueWork"] = Function::New(env, TestWorker::QueueWork);
exports["cancelWork"] = Function::New(env, TestWorker::CancelWork);
return exports;
}

Expand Down
81 changes: 33 additions & 48 deletions test/asyncprogressqueueworker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,60 +4,45 @@ const common = require('./common')
const assert = require('assert');
const os = require('os');

test(require(`./build/${buildType}/binding.node`));
test(require(`./build/${buildType}/binding_noexcept.node`));
module.exports = test(require(`./build/${buildType}/binding.node`))
.then(() => test(require(`./build/${buildType}/binding_noexcept.node`)));

function test({ asyncprogressqueueworker }) {
success(asyncprogressqueueworker);
fail(asyncprogressqueueworker);
cancel(asyncprogressqueueworker);
return;
async function test({ asyncprogressqueueworker }) {
await success(asyncprogressqueueworker);
await fail(asyncprogressqueueworker);
}

function success(binding) {
const expected = [0, 1, 2, 3];
const actual = [];
const worker = binding.createWork(expected.length,
common.mustCall((err) => {
if (err) {
assert.fail(err);
}
// All queued items shall be invoked before complete callback.
assert.deepEqual(actual, expected);
}),
common.mustCall((_progress) => {
actual.push(_progress);
}, expected.length)
);
binding.queueWork(worker);
return new Promise((resolve, reject) => {
const expected = [0, 1, 2, 3];
const actual = [];
const worker = binding.createWork(expected.length,
common.mustCall((err) => {
if (err) {
reject(err);
} else {
// All queued items shall be invoked before complete callback.
assert.deepEqual(actual, expected);
resolve();
}
}),
common.mustCall((_progress) => {
actual.push(_progress);
}, expected.length)
);
binding.queueWork(worker);
});
}

function fail(binding) {
const worker = binding.createWork(-1,
common.mustCall((err) => {
assert.throws(() => { throw err }, /test error/)
}),
() => {
assert.fail('unexpected progress report');
}
);
binding.queueWork(worker);
}

function cancel(binding) {
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Had to remove this test, because create → queue → cancel is a racy operation. After queueing completes there is a small chance that by the time the next line – cancel – executes, the work will already have been queued. This was happening on

https://ci.nodejs.org/job/node-test-node-addon-api-new/2520/nodes=debian8-64/console

Error: Unknown failure
    at /home/iojs/build/workspace/node-test-node-addon-api-new/nodes/debian8-64/node-addon-api/test/asyncprogressqueueworker.js:67:13
    at new Promise (<anonymous>)
    at cancel (/home/iojs/build/workspace/node-test-node-addon-api-new/nodes/debian8-64/node-addon-api/test/asyncprogressqueueworker.js:52:10)
    at test (/home/iojs/build/workspace/node-test-node-addon-api-new/nodes/debian8-64/node-addon-api/test/asyncprogressqueueworker.js:13:9)
    at async /home/iojs/build/workspace/node-test-node-addon-api-new/nodes/debian8-64/node-addon-api/test/index.js:102:5

We have a similar test in core:

https://github.com/nodejs/node/blob/1f94b89309bcd56a2883cd1b0eb2db610251095e/test/node-api/test_async/test_async.cc#L140-L173

I can only conclude that it works in core because the stack is shallower and therefore the distance between queue and cancel is shorter and so it happens to work.

// make sure the work we are going to cancel will not be
// able to start by using all the threads in the pool.
for (let i = 0; i < os.cpus().length; ++i) {
const worker = binding.createWork(-1, () => {}, () => {});
return new Promise((resolve, reject) => {
const worker = binding.createWork(-1,
common.mustCall((err) => {
assert.throws(() => { throw err }, /test error/);
resolve();
}),
common.mustNotCall()
);
binding.queueWork(worker);
}
const worker = binding.createWork(-1,
() => {
assert.fail('unexpected callback');
},
() => {
assert.fail('unexpected progress report');
}
);
binding.cancelWork(worker);
});
}
61 changes: 32 additions & 29 deletions test/asyncprogressworker.js
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Expand Up @@ -3,40 +3,43 @@ const buildType = process.config.target_defaults.default_configuration;
const common = require('./common')
const assert = require('assert');

test(require(`./build/${buildType}/binding.node`));
test(require(`./build/${buildType}/binding_noexcept.node`));
module.exports = test(require(`./build/${buildType}/binding.node`))
.then(() => test(require(`./build/${buildType}/binding_noexcept.node`)));

function test({ asyncprogressworker }) {
success(asyncprogressworker);
fail(asyncprogressworker);
return;
async function test({ asyncprogressworker }) {
await success(asyncprogressworker);
await fail(asyncprogressworker);
}

function success(binding) {
const expected = [0, 1, 2, 3];
const actual = [];
binding.doWork(expected.length,
common.mustCall((err) => {
if (err) {
assert.fail(err);
}
}),
common.mustCall((_progress) => {
actual.push(_progress);
if (actual.length === expected.length) {
assert.deepEqual(actual, expected);
}
}, expected.length)
);
return new Promise((resolve, reject) => {
const expected = [0, 1, 2, 3];
const actual = [];
binding.doWork(expected.length,
common.mustCall((err) => {
if (err) {
reject(err);
}
}),
common.mustCall((_progress) => {
actual.push(_progress);
if (actual.length === expected.length) {
assert.deepEqual(actual, expected);
resolve();
}
}, expected.length)
);
});
}

function fail(binding) {
binding.doWork(-1,
common.mustCall((err) => {
assert.throws(() => { throw err }, /test error/)
}),
() => {
assert.fail('unexpected progress report');
}
);
return new Promise((resolve) => {
binding.doWork(-1,
common.mustCall((err) => {
assert.throws(() => { throw err }, /test error/)
resolve();
}),
common.mustNotCall()
);
});
}
17 changes: 8 additions & 9 deletions test/asyncworker-nocallback.js
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Expand Up @@ -2,14 +2,13 @@
const buildType = process.config.target_defaults.default_configuration;
const common = require('./common');

test(require(`./build/${buildType}/binding.node`));
test(require(`./build/${buildType}/binding_noexcept.node`));
module.exports = test(require(`./build/${buildType}/binding.node`))
.then(() => test(require(`./build/${buildType}/binding_noexcept.node`)));

function test(binding) {
const resolving = binding.asyncworker.doWorkNoCallback(true, {});
resolving.then(common.mustCall()).catch(common.mustNotCall());
async function test(binding) {
await binding.asyncworker.doWorkNoCallback(true, {})
.then(common.mustCall()).catch(common.mustNotCall());

const rejecting = binding.asyncworker.doWorkNoCallback(false, {});
rejecting.then(common.mustNotCall()).catch(common.mustCall());
return;
}
await binding.asyncworker.doWorkNoCallback(false, {})
.then(common.mustNotCall()).catch(common.mustCall());
}
2 changes: 1 addition & 1 deletion test/asyncworker-persistent.js
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Expand Up @@ -21,7 +21,7 @@ function test(binding, succeed) {
}));
}

test(binding.persistentasyncworker, false)
module.exports = test(binding.persistentasyncworker, false)
.then(() => test(binding.persistentasyncworker, true))
.then(() => test(noexceptBinding.persistentasyncworker, false))
.then(() => test(noexceptBinding.persistentasyncworker, true));
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