1 files changed, 91 insertions, 0 deletions
diff --git a/libgo/go/cmd/go/testdata/script/mod_find.txt b/libgo/go/cmd/go/testdata/script/mod_find.txt
new file mode 100644
index 00000000000..f4ac8d01f56
--- /dev/null
+++ b/libgo/go/cmd/go/testdata/script/mod_find.txt
@@ -0,0 +1,91 @@
+# Derive module path from import comment.
+cd $WORK/x
+exists x.go
+go mod init
+stderr 'module x'
+
+# Import comment works even with CRLF line endings.
+rm go.mod
+addcrlf x.go
+go mod init
+stderr 'module x'
+
+# go mod should die in GOPATH if modules are not enabled for GOPATH
+cd $GOPATH/src/example.com/x/y
+! go mod init
+stderr 'go: modules disabled inside GOPATH/src by GO111MODULE=auto; see ''go help modules'''
+
+env GO111MODULE=on
+
+# Derive module path from location inside GOPATH.
+cd $GOPATH/src/example.com/x/y
+go mod init
+stderr 'module example.com/x/y$'
+rm go.mod
+
+# Module path from Godeps/Godeps.json overrides GOPATH.
+cd $GOPATH/src/example.com/x/y/z
+go mod init
+stderr 'unexpected.com/z'
+rm go.mod
+
+# Empty directory outside GOPATH fails.
+mkdir $WORK/empty
+cd $WORK/empty
+! go mod init
+stderr 'cannot determine module path for source directory'
+rm go.mod
+
+# Empty directory inside GOPATH/src uses location inside GOPATH.
+mkdir $GOPATH/src/empty
+cd $GOPATH/src/empty
+go mod init
+stderr 'empty'
+rm go.mod
+
+[!symlink] stop
+
+# gplink1/src/empty where gopathlink -> GOPATH
+symlink $WORK/gopathlink -> gopath
+cd $WORK/gopathlink/src/empty
+go mod init
+rm go.mod
+
+# GOPATH/src/link where link -> out of GOPATH
+symlink $GOPATH/src/link -> $WORK/empty
+cd $WORK/empty
+! go mod init
+cd $GOPATH/src/link
+go mod init
+stderr link
+rm go.mod
+
+# GOPATH/src/empty where GOPATH itself is a symlink
+env GOPATH=$WORK/gopathlink
+cd $GOPATH/src/empty
+go mod init
+rm go.mod
+cd $WORK/gopath/src/empty
+go mod init
+rm go.mod
+
+# GOPATH/src/link where GOPATH and link are both symlinks
+cd $GOPATH/src/link
+go mod init
+stderr link
+rm go.mod
+
+# Too hard: doesn't match unevaluated nor completely evaluated. (Only partially evaluated.)
+# Whether this works depends on which OS we are running on.
+# cd $WORK/gopath/src/link
+# ! go mod init
+
+-- $WORK/x/x.go --
+package x // import "x"
+
+-- $GOPATH/src/example.com/x/y/y.go --
+package y
+-- $GOPATH/src/example.com/x/y/z/z.go --
+package z
+-- $GOPATH/src/example.com/x/y/z/Godeps/Godeps.json --
+{"ImportPath": "unexpected.com/z"}