diff --git a/algo/algo_test.go b/algo/algo_test.go
index c459bc8..31d0f0b 100644
--- a/algo/algo_test.go
+++ b/algo/algo_test.go
@@ -22,7 +22,7 @@ func TestDoRandomSearchExec(t *testing.T) {
 
 	wg.Wait()
 
-	picsDir := report.GetPicsDir()
+	picsDir := report.GetPicsDir() + "-test-rs"
 
 	if err := os.RemoveAll(picsDir); err != nil {
 		t.Error(err)
@@ -33,6 +33,11 @@ func TestDoRandomSearchExec(t *testing.T) {
 	if _, err := os.Stat(picsDir); err == nil {
 		t.Error("picsDir should have already been cleaned up")
 	}
+
+	// clean up outdir.
+	if err := os.RemoveAll("out"); err != nil {
+		t.Error(err)
+	}
 }
 
 func TestDoSHCExec(t *testing.T) {
@@ -42,7 +47,7 @@ func TestDoSHCExec(t *testing.T) {
 
 	wg.Wait()
 
-	picsDir := report.GetPicsDir()
+	picsDir := report.GetPicsDir() + "-test-shc"
 
 	if err := os.RemoveAll(picsDir); err != nil {
 		t.Error(err)
@@ -53,4 +58,9 @@ func TestDoSHCExec(t *testing.T) {
 	if _, err := os.Stat(picsDir); err == nil {
 		t.Error("picsDir should have already been cleaned up")
 	}
+
+	// clean up outdir.
+	if err := os.RemoveAll("out"); err != nil {
+		t.Error(err)
+	}
 }