Compatibility Matrix

Reported JavaScript, Python, Java, WinterTC, and Node-API compatibility results from elide-dev/testsuite

Elide compatibility is tracked in the external elide-dev/testsuite repository. The matrix below reflects the latest report checked into these docs from reports/index.json.

These numbers are measured pass rates for one Elide build and one upstream test revision. They are not a standards certification, and they should be read with the linked testsuite report when you need exact coverage details.

Use this page for directionally comparing Elide’s runtime and toolchain behavior with upstream suites such as Test262, CPython core tests, and javac jtreg. For product behavior, prefer the language and API docs; for exact test coverage, inspect the raw testsuite report.

Pass Rate Snapshot

JavaScript - test262 99.9%
Java - javac-jtreg 99.9%
WinterTC - wpt-wintertc 95.9%
Python - cpython-core 93.8%
Node-API - node-api 86.8%

Headline Suites

AreaSuiteElide buildUpstream revisionResultRegressions
JavaScripttest2621.6.0+6e718933fde8e621c99.9% passed: 96,235 pass, 4 fail, 90 error, 7,032 skipped0
Pythoncpython-core1.6.0+6e718933ffd17997c93.8% passed: 31,404 pass, 1,259 fail, 831 error, 1,453 skipped0
Javajavac-jtreg1.6.0+6e718933f6c48f4ed99.9% passed: 3,925 pass, 1 fail, 2 error, 6 skipped0

Pass rates are calculated over non-skipped tests: pass / (pass + fail + error).

Tracked Suites

Some compatibility areas are tracked but not yet treated as headline release metrics.

AreaSuiteElide buildUpstream revisionResultRegressions
WinterTCwpt-wintertc1.6.0+6e718933f1eb456f695.9% passed: 24,065 pass, 1,018 fail, 5 error, 75 skipped0
Node-APInode-api1.6.0+6e718933fed33ae7486.8% passed: 1,194 pass, 176 fail, 5 error, 83 skipped0

Reproduce The Results

To build and run the compatibility suites yourself, follow the directions in the elide-dev/testsuite repository. The checked-in report used by this page is available as raw data:

curl -fsSL https://raw.githubusercontent.com/elide-dev/testsuite/main/reports/index.json

The report records the Elide build identifier, upstream suite revision, pass, fail, error, skipped, and regression counts for each suite.