Current File : //lib/node_modules/pm2/node_modules/continuation-local-storage/test/promises.tap.js
'use strict';
var tap = require('tap')
, test = tap.test
, createNamespace = require('../context.js').createNamespace
;
test("continuation-local state with promises", function (t) {
t.plan(4);
var namespace = createNamespace('namespace');
namespace.run(function () {
namespace.set('test', 0xabad1dea);
t.test("chained promises", function (t) {
if (!global.Promise) return t.end();
namespace.run(function () {
namespace.set('test', 31337);
t.equal(namespace.get('test'), 31337, "state has been mutated");
Promise.resolve()
.then(function () {
t.equal(namespace.get('test'), 31337,
"mutated state has persisted to first continuation");
})
.then(function () {
t.equal(namespace.get('test'), 31337,
"mutated state has persisted to second continuation");
})
.then(function () {
t.equal(namespace.get('test'), 31337,
"mutated state has persisted to third continuation");
t.end();
});
});
});
t.test("chained unwrapped promises", function (t) {
if (!global.Promise) return t.end();
namespace.run(function () {
namespace.set('test', 999);
t.equal(namespace.get('test'), 999, "state has been mutated");
Promise.resolve()
.then(function () {
t.equal(namespace.get('test'), 999,
"mutated state has persisted to first continuation");
return Promise.resolve();
})
.then(function () {
t.equal(namespace.get('test'), 999,
"mutated state has persisted to second continuation");
return Promise.resolve();
})
.then(function () {
t.equal(namespace.get('test'), 999,
"mutated state has persisted to third continuation");
t.end();
});
});
});
t.test("nested promises", function (t) {
if (!global.Promise) return t.end();
namespace.run(function () {
namespace.set('test', 54321);
t.equal(namespace.get('test'), 54321, "state has been mutated");
Promise.resolve()
.then(function () {
t.equal(namespace.get('test'), 54321,
"mutated state has persisted to first continuation");
Promise.resolve()
.then(function () {
t.equal(namespace.get('test'), 54321,
"mutated state has persisted to second continuation");
Promise.resolve()
.then(function () {
t.equal(namespace.get('test'), 54321,
"mutated state has persisted to third continuation");
t.end();
});
});
});
});
});
t.test("forked continuations", function (t) {
if (!global.Promise) return t.end();
namespace.run(function () {
namespace.set('test', 10101);
t.equal(namespace.get('test'), 10101, "state has been mutated");
var promise = Promise.resolve();
promise
.then(function () {
t.equal(namespace.get('test'), 10101,
"mutated state has persisted to first continuation");
});
promise
.then(function () {
t.equal(namespace.get('test'), 10101,
"mutated state has persisted to second continuation");
});
promise
.then(function () {
t.equal(namespace.get('test'), 10101,
"mutated state has persisted to third continuation");
t.end();
});
});
});
});
});
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