diff --git a/testutils/pkg.go b/testutils/pkg.go
index 569cd80..93f789f 100644
--- a/testutils/pkg.go
+++ b/testutils/pkg.go
@@ -129,6 +129,8 @@ func (p *TestPackage) CreateContext(filename string) *gas.Context {
 func (p *TestPackage) Close() {
 	if p.ondisk {
 		err := os.RemoveAll(p.Path)
-		log.Println(err)
+        if err != nil {
+            log.Fatal(err)
+        }
 	}
 }
diff --git a/testutils/source.go b/testutils/source.go
index 2fc9bb0..11fe535 100644
--- a/testutils/source.go
+++ b/testutils/source.go
@@ -473,7 +473,7 @@ body, err := ioutil.ReadFile(f)
 if err != nil {
  log.Printf("Error: %v\n", err)
 }
-log.Print(f)
+log.Print(body)
 
 }`, 1}, {`
 package main
@@ -493,8 +493,7 @@ func main() {
 			fmt.Printf("Error: %v\n", err)
 		}
 		body := make([]byte, 5)
-		n1, err := f.Read(body)
-		if err != nil {
+		if _, err = f.Read(body); err != nil {
 			fmt.Printf("Error: %v\n", err)
 		}
 		fmt.Fprintf(w, "%s", body)