/
test-diagnostics-channel-tracing-channel-async.js
60 lines (51 loc) · 1.61 KB
/
test-diagnostics-channel-tracing-channel-async.js
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'use strict';
const common = require('../common');
const dc = require('diagnostics_channel');
const assert = require('assert');
const channel = dc.tracingChannel('test');
const expectedResult = { foo: 'bar' };
const input = { foo: 'bar' };
const thisArg = { baz: 'buz' };
function check(found) {
assert.deepStrictEqual(found, input);
}
const handlers = {
start: common.mustCall(check, 2),
end: common.mustCall(check, 2),
asyncStart: common.mustCall((found) => {
check(found);
assert.strictEqual(found.error, undefined);
assert.deepStrictEqual(found.result, expectedResult);
}, 2),
asyncEnd: common.mustCall((found) => {
check(found);
assert.strictEqual(found.error, undefined);
assert.deepStrictEqual(found.result, expectedResult);
}, 2),
error: common.mustNotCall()
};
channel.subscribe(handlers);
channel.traceCallback(function(cb, err, res) {
assert.deepStrictEqual(this, thisArg);
setImmediate(cb, err, res);
}, 0, input, thisArg, common.mustCall((err, res) => {
assert.strictEqual(err, null);
assert.deepStrictEqual(res, expectedResult);
}), null, expectedResult);
channel.tracePromise(function(value) {
assert.deepStrictEqual(this, thisArg);
return Promise.resolve(value);
}, input, thisArg, expectedResult).then(
common.mustCall((value) => {
assert.deepStrictEqual(value, expectedResult);
}),
common.mustNotCall()
);
let failed = false;
try {
channel.traceCallback(common.mustNotCall(), 0, input, thisArg, 1, 2, 3);
} catch (err) {
assert.ok(/"callback" argument must be of type function/.test(err.message));
failed = true;
}
assert.strictEqual(failed, true);