diff --git a/internal/worker/worker.go b/internal/worker/worker.go
index 70f15f3..90c501e 100644
--- a/internal/worker/worker.go
+++ b/internal/worker/worker.go
@@ -11,6 +11,7 @@ import (
 	"github.com/jfraeys/fetch_ml/internal/metrics"
 	"github.com/jfraeys/fetch_ml/internal/resources"
 	"github.com/jfraeys/fetch_ml/internal/worker/executor"
+	"github.com/jfraeys/fetch_ml/internal/worker/integrity"
 	"github.com/jfraeys/fetch_ml/internal/worker/lifecycle"
 )
 
@@ -138,3 +139,13 @@ func (w *Worker) getGPUDetector() GPUDetector {
 func SelectDependencyManifest(filesPath string) (string, error) {
 	return executor.SelectDependencyManifest(filesPath)
 }
+
+// DirOverallSHA256Hex re-exports the integrity function for test compatibility.
+func DirOverallSHA256Hex(root string) (string, error) {
+	return integrity.DirOverallSHA256Hex(root)
+}
+
+// NormalizeSHA256ChecksumHex re-exports the integrity function for test compatibility.
+func NormalizeSHA256ChecksumHex(checksum string) (string, error) {
+	return integrity.NormalizeSHA256ChecksumHex(checksum)
+}