Sputnik
JavaScript Conformance - version 2
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What is Sputnik?
Sputnik is a JavaScript conformance test suite containing over 5000 tests. It tests how well a JavaScript implementation adheres to the ECMA-262 specification version 5, looking only at those features that were also present in the previous version, version 3, and not the new features added in version 5.What is this site?
This site allows you to run the sputnik tests and to compare the most popular browsers' test results.Run
On the run page you can run the full test suite in your browser and browse the failing tests. Note that running the tests is a fairly strenuous exercise for a browser and will cause some browsers, particularly older ones, to crash or stall. If this happens you can close and reopen your browser and continue running where you left off.Compare
The compare page shows an experimental plot illustrating how popular browsers perform compared to each other. The distance to the center shows how close the browser is to passing all tests; the further the browser is from the center the more tests it fails. The distance between browsers shows how different they are; the more similar two browsers are – the more test failures they have in common – the closer they will be.Version 2?
This is version 2 of the Sputnik tests. We will be making revisions from time to time as we add more tests or fix bugs. Note that test results are not compatible unless both results are run with the same revision of the test suite.Version 2 fixes a bug that caused later versions of Internet Explorer to emulate version 7.
