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SPromiseMeSpeed.test.html
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<!doctype html>
<html><head><title>PromiseMeSpeed Compliance Tests</title></head><body>
<center><h1>Compliance Tests for PromiseMeSpeed</h1></center>
<pre id="scriptError" style="color:#c00"></pre>
<table style="border-collapse:collapse;max-width:100%"><thead><tr><th>Vendor</th><th>Code Snippet</th><th>Expected Output</th><th>Actual Output</th></tr></thead><tbody id="testResults"></tbody></table>
<script src="SPromiseMeSpeed.min.js" defer="" onerror="document.getElementById('scriptError').textContent+=arguments[0].message+'\n\n'"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bluebird/3.5.4/bluebird.core.min.js" defer="" onerror="document.getElementById('scriptError').textContent+=arguments[0].message+'\n\n'"></script><script>
"use strict";
// my own test manager with lots of Promise tests
addEventListener("DOMContentLoaded", (function(nativeBrowserPromise, allPromiseTests){
var promisesAndVendors = [[window.SPromise, "SPromise"], [nativeBrowserPromise, "native"], [window.Promise, "Bluebird"]];
var testResultsTbody = document.getElementById("testResults");
var lastFailedTestRow = null;
var JSON_stringify = JSON.stringify;
for (var promiseVendorIndex = 0; promiseVendorIndex < promisesAndVendors.length; promiseVendorIndex++) {
doTestsForVendor( promisesAndVendors[promiseVendorIndex] );
}
function prettyStringify(array){ /// JSON.stringify mixed with pretty-printing
var result = '';
for (var i=0; i<array.length; i++) {
var val = array[i];
result += (typeof val=== "object" ? JSON_stringify(val, null, '\t') : val) + "\n";
}
return result.slice(0, -1);
}
function doTestsForVendor(promiseVendor){
var expectations = [], results = [];
function bindArrayPrototypePush(expectationsOrResults){
return function(){
for (var i=0; i<arguments.length; i++)
expectationsOrResults.push(arguments[i]);
};
}
for (var testIndex = 0; testIndex < allPromiseTests.length; testIndex++) {
// bind array.prototype.push to the two arrays, then the test will act on the arrays
try {
allPromiseTests[testIndex](
promiseVendor[0],
bindArrayPrototypePush(expectations[testIndex] = []),
bindArrayPrototypePush(results[testIndex] = [])
);
} catch(e) {e && results[testIndex].push(e.message + "\n" + e.stack)}
}
setTimeout(function(){
// now, check to see which arrays are the same and which differ to determine which test failed
for (var testIndex = 0; testIndex < allPromiseTests.length; testIndex++) {
var row = testResultsTbody.insertRow(-1);
var testExpected = expectations[testIndex];
var testResults = results[testIndex];
row.insertCell(-1).textContent = promiseVendor[1]; // promise vendor name
var codePreTag = row.insertCell(-1).appendChild(document.createElement("pre"));
codePreTag.className = 'test-code-snippet';
codePreTag.textContent = allPromiseTests[testIndex].toString(); // test code
row.insertCell(-1).appendChild(document.createElement("pre")).textContent = (
prettyStringify(testExpected, null, "\t")
); // expected results
var actualResultsCell = row.insertCell(-1);
actualResultsCell.appendChild(document.createElement("pre")).textContent = (
prettyStringify(testResults, null, "\t")
); // actual results
var areTheSameSuccess = true;
if (testExpected.length !== testResults.length) areTheSameSuccess = false;
if (areTheSameSuccess) {
// check for any results that fail to match what was expected
for (var resultIndex=0; resultIndex < testExpected.length; resultIndex++)
if (testExpected[resultIndex] !== testResults[resultIndex])
areTheSameSuccess = false;
}
// green => success; red => failure
actualResultsCell.style.background = areTheSameSuccess ? "#dfd" : "#fdd";
if (!areTheSameSuccess) {
// move it up higher to the end of the fail section
testResultsTbody.insertBefore(
row,
lastFailedTestRow ? lastFailedTestRow.nextSibling : testResultsTbody.firstChild
);
lastFailedTestRow = row;
}
}
}, 250); // arbitrary time of 250ms, after which we assume that all the promises are done
}
}).bind(0,
window.Promise, // Bluebird overides window.Promise, so we must get window.Promise before Bluebird loads up
[function(PromiseConstructor, expect, output){
// basic expectation for the three common methods
expect(
'"then" in promise', '"catch" in promise', '"finally" in promise',
'Promise.all', 'Promise.race', 'Promise.reject', 'Promise.resolve'
);
var instance = new PromiseConstructor(function(){});
function isFunc(x){return typeof x==="function"}
if (isFunc(instance.then)) output('"then" in promise');
if (isFunc(instance.catch)) output('"catch" in promise');
if (isFunc(instance.finally)) output('"finally" in promise');
if (isFunc(PromiseConstructor.all)) output('Promise.all');
if (isFunc(PromiseConstructor.race)) output('Promise.race');
if (isFunc(PromiseConstructor.reject)) output('Promise.reject');
if (isFunc(PromiseConstructor.resolve)) output('Promise.resolve');
}, function(PromiseConstructor, expect, output){
// Promise{accept}.then pipes the value
expect('Promise{accept}.then pipe');
new PromiseConstructor(function(accept){
accept('Promise{accept}.then pipe');
}).then(output);
}, function(PromiseConstructor, expect, output){
// Promise.resolve.then pipes the value
expect('Promise.resolve.then pipe');
PromiseConstructor.resolve('Promise.resolve.then pipe').then(output);
}, function(PromiseConstructor, expect, output){
// Promise{accept}.then.then pipes the value
expect('[passing:] Promise{accept}.then.then pipe', 'Promise{accept}.then.then pipe');
new PromiseConstructor(function(accept){
accept('Promise{accept}.then.then pipe');
}).then(function(value){
output('[passing:] ' + value);
return value;
}).then(output);
}, function(PromiseConstructor, expect, output){
// Promise{reject}.catch pipes the value
expect('Promise{reject}.catch pipe');
new PromiseConstructor(function(accept, reject){
reject('Promise{reject}.catch pipe');
}).catch(output);
}, function(PromiseConstructor, expect, output){
// Promise{throw}.catch pipes the value
expect('Promise{throw}.catch pipe');
new PromiseConstructor(function(accept, reject){
throw 'Promise{throw}.catch pipe';
}).catch(output);
}, function(PromiseConstructor, expect, output){
// Promise.reject.then pipes the value
expect('Promise.reject.then pipe');
PromiseConstructor.reject('Promise.reject.then pipe').then(function(){}, output);
}, function(PromiseConstructor, expect, output){
// Promise.resolve.finally pipes no value
expect(); // expect nothing
PromiseConstructor.resolve().finally(output);
}, function(PromiseConstructor, expect, output){
// Promise.reject.finally pipes no value
expect(); // expect nothing
PromiseConstructor.reject().finally(output);
}, function(PromiseConstructor, expect, output){
// return value from .finally ignored for thenables
expect('.finally transparency');
PromiseConstructor.resolve('.finally transparency')
.finally(function(){return '.finally is blocking'})
.then(output);
}, function(PromiseConstructor, expect, output){
// return value from .finally ignored for catchables
expect('.finally transparency');
PromiseConstructor.reject('.finally transparency')
.finally(function(){return '.finally is blocking'})
.catch(output);
}, function(PromiseConstructor, expect, output){
// Promise{reject}.catch{throw}.then pipes the value
expect(
'[passing:] Promise{reject}.catch{throw}.catch pipe',
'Promise{reject}.catch{throw}.catch pipe'
);
new PromiseConstructor(function(accept, reject){
reject('Promise{reject}.catch{throw}.catch pipe');
}).catch(function(value){
output('[passing:] ' + value);
throw value;
}).catch(output);
}, function(PromiseConstructor, expect, output){
// Promise{throw}.catch.then piping
expect('thrown error msg', 'return from catch');
new PromiseConstructor(function(accept, reject){throw 'thrown error msg'})
.catch(function(value){output(value); return 'return from catch'})
.then(output)
}, function(PromiseConstructor, expect, output){
// '.catch' transparency for .catch.catch.then
expect('Transparent resolved');
new PromiseConstructor(function(accept, reject){accept('Transparent resolved');})
.catch(function(){ output('1st ".catch" should transparently pass the resolved'); })
.catch(function(){ output('2nd ".catch" should transparently pass the resolved'); })
.then(output)
}, function(PromiseConstructor, expect, output){
// '.resolve(Promise)' resolves to the resolution of the inner Promise
expect('Promise.resolve(new Promise) resolves to\n' +
'\tthe resolution of the inner promise');
var promiseInput = new PromiseConstructor(function(accept, reject){
accept("the resolution of the inner promise");
});
PromiseConstructor.resolve(promiseInput).then(function(value) {
if (value === promiseInput)
output('Promise.resolve(new Promise) is a promise');
else
output('Promise.resolve(new Promise) resolves to\n\t' + value);
});
}, function(PromiseConstructor, expect, output){
// '.reject(Promise)' rejects the inner Promise itself
expect('Promise.reject(new Promise) is a promise');
var promiseInput = new PromiseConstructor(function(accept, reject){
reject("the rejection of the inner promise");
});
PromiseConstructor.reject(promiseInput).catch(function(value) {
if (value === promiseInput)
output('Promise.reject(new Promise) is a promise');
else
output('Promise.reject(new Promise) rejects to ' + value);
});
}, function(PromiseConstructor, expect, output){
// '.resolve(Promise{reject()})' taints the resolution of the Promise
expect('Promise.resolve(new Promise{reject()}) taints the resolution');
PromiseConstructor.resolve(new PromiseConstructor(function(accept, reject){
reject('Promise.resolve(new Promise{reject()}) taints the resolution');
})).catch(output);
}, function(PromiseConstructor, expect, output){
// .finally{throw}.catch check
expect('.finally{throw}.catch');
PromiseConstructor.resolve().finally(function(resolve){
throw '.finally{throw}.catch';
}).catch(output);
}, function(PromiseConstructor, expect, output){
// `throw` after `resolve` does nothing
expect('throw resolve() thenablity');
new PromiseConstructor(function(accept){
throw accept('throw resolve() thenablity');
}).then(output);
}, function(PromiseConstructor, expect, output){
// Promise without new throws error
// SPromise should fail this test because it does not use `new`
expect('Exception when constructed without `new`');
try {
PromiseConstructor(function(accept){accept()});
} catch(e) {
output('Exception when constructed without `new`');
}
}, function(PromiseConstructor, expect, output){
// stack overflow test to ensure that the promises can deal with deep nesting.
expect('No stack overflow inside of 16384 calls!');
var i = 16384;
new PromiseConstructor(function recurseDeeper(){
try {
if (i-- < 0) return output('No stack overflow inside of 16384 calls!');
return new PromiseConstructor(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// stack overflow test to ensure that the promises can deal with deep nesting
expect('No stack overflow inside of 2048 calls!');
var i = 2048;
new PromiseConstructor(function recurseDeeper(){
try {
if (i-- < 0) return output('No stack overflow inside of 2048 calls!');
return new PromiseConstructor(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// breadth test for many many functions called after a promise
expect('16384 successful ".then"s');
expect('16384 successful ".catch"s');
expect('16384 successful ".finally"s');
var promiseRejector, num={then:0, catch:0, finally:0};
var instance = new PromiseConstructor(function(accept, reject){promiseRejector = reject});
function thenAfter(arg){num[arg||'finally']++; return 'then'}
for (var i=0; i<8192; i++) {
instance.catch(thenAfter).then(thenAfter);
instance.finally(thenAfter);
}
promiseRejector('catch');
for (var i=0; i<8192; i++) {
instance.catch(thenAfter).then(thenAfter);
instance.finally(thenAfter);
}
setTimeout(function(){
output(num.then + ' successful ".then"s');
output(num.catch + ' successful ".catch"s');
output(num.finally + ' successful ".finally"s');
}, 100);
}, function(PromiseConstructor, expect, output){
// stack overflow test to ensure that the promises can deal with accept()->`.then` nesting
expect('No `.then` stack overflow inside of 2048 calls!');
var i = 2048;
PromiseConstructor.resolve(null).then(function recurseDeeper(){
try {
if (i-- < 0) return output('No `.then` stack overflow inside of 2048 calls!');
PromiseConstructor.resolve(null).then(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// homologous `.catch` stack overflow test
expect('No homologous `.then` stack overflow inside of 2048 calls!');
var i = 2048, samePromise=PromiseConstructor.resolve(null);
samePromise.then(function recurseDeeper(){
try {
if (i-- < 0) {
output('No homologous `.then` stack overflow inside of 2048 calls!');
return;
}
samePromise.then(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// stack overflow test to ensure that the promises can deal with reject()->`.catch` nesting
expect('No `.catch` stack overflow inside of 2048 calls!');
var i = 2048;
PromiseConstructor.reject(null).catch(function recurseDeeper(){
try {
if (i-- < 0) return output('No `.catch` stack overflow inside of 2048 calls!');
PromiseConstructor.reject(null).catch(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// homologous `.catch` stack overflow test
expect('No homologous `.catch` stack overflow inside of 2048 calls!');
var i = 2048, samePromise=PromiseConstructor.reject(null);
samePromise.catch(function recurseDeeper(){
try {
if (i-- < 0) {
output('No homologous `.catch` stack overflow inside of 2048 calls!');
return;
}
samePromise.catch(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// stack overflow test to ensure that the promises can deal with accept()->`.finally` nesting
expect('No `.finally` stack overflow inside of 2048 calls!');
var i = 2048;
PromiseConstructor.resolve(null).finally(function recurseDeeper(){
try {
if (i-- < 0) return output('No `.finally` stack overflow inside of 2048 calls!');
PromiseConstructor.resolve(null).finally(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// homologous `.finally` stack overflow test
expect('No homologous `.finally` stack overflow inside of 2048 calls!');
var i = 2048, samePromise=PromiseConstructor.resolve(null);
samePromise.finally(function recurseDeeper(){
try {
if (i-- < 0) {
output('No homologous `.finally` stack overflow inside of 2048 calls!');
return;
}
samePromise.finally(recurseDeeper);
} catch(e) {
i = 0;
output(e.message + "\n" + e.stack);
}
});
}, function(PromiseConstructor, expect, output){
// ensures .toString returns [object Promise] for new instances
expect('promise.toString() === "[object Promise]"');
output('promise.toString() === ' + JSON.stringify(
"" + new PromiseConstructor(function(){})
));
}, function(PromiseConstructor, expect, output){
// ensures .toString returns [object Promise] for resolves
expect('promise.toString() === "[object Promise]"');
output('promise.toString() === ' + JSON.stringify(
"" + PromiseConstructor.resolve(null)
));
}, function(PromiseConstructor, expect, output){
// ensures .toString returns [object Promise] for rejections
expect('promise.toString() === "[object Promise]"');
output('promise.toString() === ' + JSON.stringify(
"" + PromiseConstructor.reject(null)
));
}, function(PromiseConstructor, expect, output){
// nested thenability and order test
expect('Checkpoint A: before inner .then');
expect('Checkpoint B: inside inner .then');
expect('Checkpoint C: after inner .then');
expect('Checkpoint D: after outer .then');
PromiseConstructor.resolve().then(function(){
output('Checkpoint A: before inner .then');
return new PromiseConstructor(function(accept, reject){
output('Checkpoint B: inside inner .then');
accept('Checkpoint D: after outer .then');
output('Checkpoint C: after inner .then');
});
}).then(output);
}, function(PromiseConstructor, expect, output){
// nested catchability and order test
expect('Checkpoint A: before inner .catch');
expect('Checkpoint B: inside inner .catch');
expect('Checkpoint C: after inner .catch');
expect('Checkpoint D: after outer .catch');
PromiseConstructor.reject().catch(function(){
output('Checkpoint A: before inner .catch');
return new PromiseConstructor(function(accept, reject){
output('Checkpoint B: inside inner .catch');
reject('Checkpoint D: after outer .catch');
output('Checkpoint C: after inner .catch');
});
}).catch(output);
}]), {once: 1});
</script>
<style>#testResults td, #testResults th {border: 1px solid;vertical-align:top}
pre {max-width: calc(33vw - 3em);overflow: auto}
.test-code-snippet {min-height: 7em;height: 100%;max-height: 100%;margin: 0;overflow-y:auto;font-variant-ligatures: none}</style><a href="https://github.com/anonyco/SPromiseMeSpeedJS" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style></body></html>