1 files changed, 19 insertions, 0 deletions
diff --git a/whisper/sort_test.go b/whisper/sort_test.go
new file mode 100644
index 000000000..5d8177d41
--- /dev/null
+++ b/whisper/sort_test.go
@@ -0,0 +1,19 @@
+package whisper
+
+import "testing"
+
+func TestSorting(t *testing.T) {
+	m := map[int32]Hash{
+		1: HS("1"),
+		3: HS("3"),
+		2: HS("2"),
+		5: HS("5"),
+	}
+	exp := []int32{1, 2, 3, 5}
+	res := sortKeys(m)
+	for i, k := range res {
+		if k != exp[i] {
+			t.Error(k, "failed. Expected", exp[i])
+		}
+	}
+}