Palak Handa / startUpJalsa-Backend

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node_modules/continuation-local-storage/test/promises.tap.js 3.72 KB
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f7563de62   Palak Handa   first commit 
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  '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();
            });
        });
      });
    });
  });