node/test/addons-napi/test_async/test.js

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

test_async(5, common.mustCall(function(err, val) {
  assert.strictEqual(err, null);
  assert.strictEqual(val, 10);
  process.nextTick(common.mustCall(function() {}));
}));
n-api: implement async helper methods Based on the async methods we had in abi-stable-node before the napi feature landed in node/master. Changed this set of APIs to handle error cases and removed a lot of the extra methods we had for setting all the pieces of napi_work opting instead to pass all of those as arguments to napi_create_async_work as none of those parameters are optional except for the complete callback, anyway. Renamed the napi_work struct to napi_async_work and replace the struct itself with a class which can better encapsulate the object lifetime and uv_work_t that we're trying to wrap anyway. Added a napi_async_callback type for the async helper callbacks instead of taking raw function pointers and make this callback take a napi_env parameter as well as the void* data it was already taking. Call the complete handler for the async work item with a napi_status code translated from the uvlib error code. The execute callback is required for napi_create_async_work, though complete callback is still optional. Also added some async unit tests for addons-napi based on the addons/async_hello_world test. PR-URL: https://github.com/nodejs/node/pull/12250 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Timothy Gu <timothygu99@gmail.com> Reviewed-By: Hitesh Kanwathirtha <hiteshk@microsoft.com> 8 years ago			`'use strict';`
			`const common = require('../../common');`
			`const assert = require('assert');`
			const test_async = require(`./build/${common.buildType}/test_async`);

			`test_async(5, common.mustCall(function(err, val) {`
			`assert.strictEqual(err, null);`
			`assert.strictEqual(val, 10);`
			`process.nextTick(common.mustCall(function() {}));`
			`}));`