cmd/go: fix mod_gomodcache and generate_env TestScripts on Plan 9
Adjust these two tests for Plan 9,
which uses $path instead of $PATH,
and $home instead of $HOME.
Fixes #39599
Change-Id: Idba95e07d307e76f0f61acd904905b417c52d43a
Reviewed-on: https://go-review.googlesource.com/c/go/+/237941
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/src/cmd/go/testdata/script/generate_env.txt b/src/cmd/go/testdata/script/generate_env.txt
index 0d3693f..2df1663 100644
--- a/src/cmd/go/testdata/script/generate_env.txt
+++ b/src/cmd/go/testdata/script/generate_env.txt
@@ -1,7 +1,8 @@
# Install an env command because Windows and plan9 don't have it.
env GOBIN=$WORK/tmp/bin
go install env.go
-env PATH=$GOBIN${:}$PATH
+[plan9] env path=$GOBIN${:}$path
+[!plan9] env PATH=$GOBIN${:}$PATH
# Test generators have access to the environment
go generate ./printenv.go
diff --git a/src/cmd/go/testdata/script/mod_gomodcache.txt b/src/cmd/go/testdata/script/mod_gomodcache.txt
index 67a8f07..b2143e2 100644
--- a/src/cmd/go/testdata/script/mod_gomodcache.txt
+++ b/src/cmd/go/testdata/script/mod_gomodcache.txt
@@ -24,7 +24,8 @@
# If neither GOMODCACHE or GOPATH are set, GOPATH defaults to the user's $HOME/go, so GOMODCACHE becomes $HOME/go/pkg/mod
[windows] env USERPROFILE=$WORK/home # Ensure USERPROFILE is a valid path (rather than /no-home/ so we don't run into the logic that "uninfers" GOPATH in cmd/go/main.go
-[!windows] env HOME=$WORK/home
+[plan9] env home=$WORK/home
+[!windows] [!plan9] env HOME=$WORK/home
env GOMODCACHE=
env GOPATH=
go env GOMODCACHE
