[short] skip 'builds and runs go programs'
[!symlink] skip 'uses symlinks to construct a GOROOT'

env NEWGOROOT=$WORK${/}goroot
env TOOLDIR=$GOROOT/pkg/tool/${GOOS}_${GOARCH}
# Use ${/} in paths we'll check for in stdout below, so they contain '\' on Windows
env NEWTOOLDIR=$NEWGOROOT${/}pkg${/}tool${/}${GOOS}_${GOARCH}
mkdir $NEWGOROOT $NEWGOROOT/bin $NEWTOOLDIR
[symlink] symlink $NEWGOROOT/src -> $GOROOT/src
[symlink] symlink $NEWGOROOT/pkg/include -> $GOROOT/pkg/include
[symlink] symlink $NEWGOROOT/bin/go -> $GOROOT/bin/go
[symlink] symlink $NEWTOOLDIR/compile$GOEXE -> $TOOLDIR/compile$GOEXE
[symlink] symlink $NEWTOOLDIR/cgo$GOEXE -> $TOOLDIR/cgo$GOEXE
[symlink] symlink $NEWTOOLDIR/link$GOEXE -> $TOOLDIR/link$GOEXE
[symlink] symlink $NEWTOOLDIR/asm$GOEXE -> $TOOLDIR/asm$GOEXE
[symlink] symlink $NEWTOOLDIR/pack$GOEXE -> $TOOLDIR/pack$GOEXE
env GOROOT=$NEWGOROOT
env TOOLDIR=$NEWTOOLDIR

# GOROOT without test2json tool builds and runs it as needed
go env GOROOT
! exists $TOOLDIR/test2json
go tool test2json
stdout '{"Action":"start"}'
! exists $TOOLDIR/test2json$GOEXE
go tool -n test2json
! stdout $NEWTOOLDIR${/}test2json$GOEXE

# GOROOT with test2json uses the test2json in the GOROOT
go install cmd/test2json
exists $TOOLDIR/test2json$GOEXE
go tool test2json
stdout '{"Action":"start"}'
go tool -n test2json
stdout $NEWTOOLDIR${/}test2json$GOEXE

# Tool still runs properly even with wrong GOOS/GOARCH
# Remove test2json from tooldir
rm $TOOLDIR/test2json$GOEXE
go tool -n test2json
! stdout $NEWTOOLDIR${/}test2json$GOEXE
# Set GOOS/GOARCH to different values than host GOOS/GOARCH.
env GOOS=windows
[GOOS:windows] env GOOS=linux
env GOARCH=arm64
[GOARCH:arm64] env GOARCH=amd64
# Control case: go run shouldn't work because it respects
# GOOS/GOARCH, and we can't execute non-native binary.
! go run cmd/test2json -exec=''
# But go tool should because it doesn't respect GOOS/GOARCH.
go tool test2json
stdout '{"Action":"start"}'