test: remove dir cmd and tools

cover.sh

@@ -3,7 +3,7 @@
 set -e
 echo "" > coverage.txt
 
-for d in $(go list ./... ); do
+for d in $(go list ./... | grep -v cmd | grep -v tools); do
     go test -coverprofile=profile.out -covermode=atomic $d
     if [ -f profile.out ]; then
         cat profile.out >> coverage.txt