Fix TestStreamWriteYAMLResponse flakyness (#4122)

Signed-off-by: Marco Pracucci <[email protected]>

Author: pracucci

pkg/util/http_test.go

@@ -108,7 +108,9 @@ func TestStreamWriteYAMLResponse(t *testing.T) {
 		expectedContentType: "application/yaml",
 		value:               make(map[string]*testStruct),
 	}
-	for i := 0; i < rand.Intn(100); i++ {
+
+	// Generate some data to serialize.
+	for i := 0; i < rand.Intn(100)+1; i++ {
 		ts := testStruct{
 			Name:  "testName" + strconv.Itoa(i),
 			Value: i,