node/test/node-api/test_async/test.js at main · fetchapi/node · GitHub

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'use strict';

const common = require('../../common');

const assert = require('assert');

const child_process = require('child_process');

const test_async = require(`./build/${common.buildType}/test_async`);

const testException = 'test_async_cb_exception';

// Exception thrown from async completion callback.

// (Tested in a spawned process because the exception is fatal.)

if (process.argv[2] === 'child') {

test_async.Test(1, {}, common.mustCall(function() {

throw new Error(testException);

}));

return;

}

const p = child_process.spawnSync(

process.execPath, [ __filename, 'child' ]);

assert.ifError(p.error);

assert.ok(p.stderr.toString().includes(testException));

// Successful async execution and completion callback.

test_async.Test(5, {}, common.mustCall(function(err, val) {

assert.strictEqual(err, null);

assert.strictEqual(val, 10);

process.nextTick(common.mustCall());

}));

// Async work item cancellation with callback.

test_async.TestCancel(common.mustCall());

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