# 'go install' with no arguments should clean up after go build
cd mycmd
go build
exists mycmd$exe
go install
! exists mycmd$exe

# 'go install mycmd' does not clean up, even in the mycmd directory
go build
exists mycmd$exe
go install mycmd
exists mycmd$exe

# 'go install mycmd' should not clean up in an unrelated current directory either
cd ..
cp mycmd/mycmd$exe mycmd$exe
go install mycmd
exists mycmd$exe

-- mycmd/main.go --
package main
func main() {}