diff --git a/.github/workflows/go.yml b/.github/workflows/codecov.yml
similarity index 73%
rename from .github/workflows/go.yml
rename to .github/workflows/codecov.yml
index 91c00220..120f6e98 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/codecov.yml
@@ -1,10 +1,6 @@
 name: Go
 
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
+on: [push, pull_request]
 
 jobs:
 
@@ -16,7 +12,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: 1.22.3
+        go-version: 1.19.12
 
     - name: Clang
       run: |
@@ -49,14 +45,13 @@ jobs:
     - name: Coverage
       run: |
           go get -u github.com/wadey/gocovmerge
-          go get -u github.com/Konstantin8105/cs
+          go install github.com/ory/go-acc@latest
           go get -u golang.org/x/sys/unix
-          go test -run=TestIntegrationScripts/tests/ctype.c -coverprofile=coverage.txt -covermode=atomic
-          # TRAVIS=true ./scripts/test.sh
-
+          TRAVIS=true ./scripts/test.sh
+        
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v4
       with:
-          token: ${{ secrets.CODECOV_ORG_TOKEN }}
-          verbose: true # optional (default = false)
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: coverage.txt
+          #verbose: true # optional (default = false)
diff --git a/scripts/test.sh b/scripts/test.sh
index e3907531..b0605756 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -2,43 +2,38 @@
 
 set -e
 
-echo "" > coverage.txt
-
+# Initialize
 mkdir -p ./testdata/
 
-# Package list
-export PKGS=$(go list ./... | grep -v c4go/testdata | grep -v c4go/examples | grep -v c4go/tests | grep -v /vendor/ | tr '\n' ' ')
+# github.com/Konstantin8105/c4go
+# github.com/Konstantin8105/c4go/ast
+# github.com/Konstantin8105/c4go/examples // ignore
+# github.com/Konstantin8105/c4go/noarch
+# github.com/Konstantin8105/c4go/preprocessor
+# github.com/Konstantin8105/c4go/program
+# github.com/Konstantin8105/c4go/scripts
+# github.com/Konstantin8105/c4go/testdata // ignore
+# github.com/Konstantin8105/c4go/tests    // ignore
+# github.com/Konstantin8105/c4go/transpiler
+# github.com/Konstantin8105/c4go/types
+# github.com/Konstantin8105/c4go/util
+# github.com/Konstantin8105/c4go/version
 
-# Make comma-separated.
-export PKGS_DELIM=$(echo "$PKGS" | tr ' ' ',')
+# Package list
+export PKGS=$(go list -e ./... | grep -v testdata | grep -v examples | grep -v tests | grep -v vendor | tr '\n' ' ')
+# export PKGS="github.com/Konstantin8105/c4go github.com/Konstantin8105/c4go/util"
 
+# View
 echo "PKGS       : $PKGS"
-echo "PKGS_DELIM : $PKGS_DELIM"
-
-go test                                 \
-				  -cover                \
-				  -timeout=30m          \
-	              -coverpkg=$PKGS_DELIM \
-				  -coverprofile=./testdata/pkg.coverprofile $PKGS
-
-# Merge coverage profiles.
-COVERAGE_FILES=`ls -1 ./testdata/*.coverprofile 2>/dev/null | wc -l`
-if [ $COVERAGE_FILES != 0 ]; then
-	# check program `gocovmerge` is exist
-	if which gocovmerge >/dev/null 2>&1; then
-		export FILES=$(ls testdata/*.coverprofile | tr '\n' ' ')
-		echo "Combine next coverprofiles : $FILES"
-		gocovmerge $FILES > coverage.txt
-	fi
-fi
-
-# echo "" > coverage.out
-# for d in $(go list ./... | grep -v vendor); do
-#     go test -v -race -coverprofile=profile.out -covermode=atomic $d
-#     if [ -f profile.out ]; then
-#         cat profile.out >> coverage.out
-#         rm profile.out
-#     fi
-# done
 
+# Initialize
+touch ./coverage.tmp
+
+# Run tests
+echo 'mode: atomic' > coverage.txt
+# go list -e ./... | grep -v testdata | grep -v examples | grep -v tests | grep -v vendor | grep -v cmd | xargs -n100 -I{} sh -c 'go test -covermode=atomic -coverprofile=coverage.tmp -coverpkg $(go list -e ./...  | grep -v testdata | grep -v examples | grep -v tests | grep -v vendor | grep -v cmd | tr "\n" ",") {} && tail -n +2 coverage.tmp >> coverage.txt || exit 255' && rm coverage.tmp
+
+echo "$PKGS" | xargs -n100 -I{} sh -c 'go test -covermode=atomic -coverprofile=coverage.tmp -coverpkg $(echo "$PKGS" | tr " " ",") {} && tail -n +2 coverage.tmp >> coverage.txt || exit 255' && rm coverage.tmp
+
+# Finilize
 echo "End of coverage"
diff --git a/util/util.go b/util/util.go
index e4dd5eaf..09e7f434 100644
--- a/util/util.go
+++ b/util/util.go
@@ -87,10 +87,10 @@ func IsLastArray(s string) bool {
 // ParseFunction - parsing elements of C function
 func ParseFunction(s string) (prefix string, funcname string, f []string, r []string, err error) {
 	defer func() {
-		if len(f) == 1 && f[0] == "void" {
-			f = nil
-		}
-
+		// fix bug in tests:
+		// if len(f) == 1 && f[0] == "void" {
+		// 	f = nil
+		// }
 		if err != nil {
 			err = fmt.Errorf("cannot parse function '%s' : %v", s, err)
 		} else {
diff --git a/util/util_test.go b/util/util_test.go
index c1c5cb83..edc1b8c3 100644
--- a/util/util_test.go
+++ b/util/util_test.go
@@ -275,19 +275,19 @@ func TestResolveFunction(t *testing.T) {
 			if len(actualField) != len(tc.fields) {
 				a, _ := json.Marshal(actualField)
 				f, _ := json.Marshal(tc.fields)
-				t.Errorf("Size of field is not same.\nActual  : %s\nExpected: %s\n",
-					string(a),
-					string(f))
-				return
-			}
-			if len(actualField) != len(tc.fields) {
-				a, _ := json.Marshal(actualField)
-				f, _ := json.Marshal(tc.fields)
-				t.Errorf("Size of field is not same.\nActual  : %s\nExpected: %s\n",
+				t.Errorf("Size of field is not same.\nActual  : `%s`\nExpected: `%s`\n",
 					string(a),
 					string(f))
 				return
 			}
+			// if len(actualField) != len(tc.fields) {
+			// 	a, _ := json.Marshal(actualField)
+			// 	f, _ := json.Marshal(tc.fields)
+			// 	t.Errorf("Size of field is not same.\nActual  : `%s`\nExpected: `%s`\n",
+			// 		string(a),
+			// 		string(f))
+			// 	return
+			// }
 			for i := range actualField {
 				actualField[i] = strings.Replace(actualField[i], " ", "", -1)
 				tc.fields[i] = strings.Replace(tc.fields[i], " ", "", -1)