Test262 is the official test suite of the ECMAScript specification. To ensure conformity with the specification and prevent regressions, we continuously test Nova against the test suite and track the results. Below is a chart showing the test results of the latest commits to Nova.
fix(ecmascript): Minor crash issues (#751)
* fix(ecmascript): Array.prototype.copyWithin crashes on negative copy counts
* fix(ecmascript): Object.prototype.toString for Proxy and other annoying objects
* feat(ecmascript): %IteratorPrototype%[Symbol.toStringTag]
* feat(ecmascript): Iterator[Symbol.toStringTag] At 2025-06-06 14:11:35 commit a524c8c7ccf680710f3ceb9683f8279bb7894b96
Pass
Skip
Timeout
Unresolved
Fail
Crash
33522 (67.3%)
2676 (5.4%)
4 (0.0%)
0 (0.0%)
11865 (23.8%)
1707 (3.4%)
A more detailed breakdown of the current test results can be viewed on test262.fyi.