diff --git a/pkg/httputils/http_util_test.go b/pkg/httputils/http_util_test.go
index ce5727ff4..21731f1b1 100644
--- a/pkg/httputils/http_util_test.go
+++ b/pkg/httputils/http_util_test.go
@@ -234,6 +234,10 @@ func (s *HTTPUtilTestSuite) TestConcurrencyPostJson(c *check.C) {
 	wg.Wait()
 }
 
+func (s *HTTPUtilTestSuite) TestConstructRangeStr(c *check.C) {
+	c.Check(ConstructRangeStr("200-1000"), check.DeepEquals, "bytes=200-1000")
+}
+
 // ----------------------------------------------------------------------------
 // helper functions and structures