xst.md

xst

xst is the XS test engine, a JavaScript engine to test XS on Linux, macOS and Windows.

Build

Linux

cd $MODDABLE/xs/makefiles/lin
make

macOS

cd $MODDABLE/xs/makefiles/mac
make

Windows

cd %MODDABLE%\xs\makefiles\win
build

Download

You can use the jsvu CLI to install or update xst.

You can also download the latest versions of xst from the moddable-xst repository into a directory that is on your PATH

Usage

xst [-h] [-e] [-m] [-s] [-v] strings...

• -h: print this help message
• -e: eval strings
• -m: strings are paths to modules
• -s: strings are paths to scripts
• -v: print XS version

Without the -e, -m or -s options, strings are paths to test262 cases or directories.

eshost

To test XS with eshost, install the eshost CLI. Then add XS to the hosts:

eshost --add 'XS' xs ~/.jsvu/xst

eshost uses the -s option of xst.

test262

To test XS with test262, clone test262 and change the directory to the test directory inside the test262 directory. For instance:

cd ~/test262/test
xst language/block-scope
xst built-ins/TypedArrays/buffer-arg-*

See XS Conformance for details about how XS currently passes test262 cases.