From 61b01c92738b5b3e6b05575ff9746e32a23d5b36 Mon Sep 17 00:00:00 2001
From: Alex Willmer <alex@moreati.org.uk>
Date: Wed, 1 Apr 2020 18:58:12 +0100
Subject: [PATCH] ids: Add test for SortIDs

---
 ids/id_test.go | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/ids/id_test.go b/ids/id_test.go
index d013b24..82f102c 100644
--- a/ids/id_test.go
+++ b/ids/id_test.go
@@ -5,6 +5,7 @@ package ids
 
 import (
 	"bytes"
+	"reflect"
 	"testing"
 )
 
@@ -174,3 +175,20 @@ func TestIDString(t *testing.T) {
 		})
 	}
 }
+
+func TestSortIDs(t *testing.T) {
+	ids := []ID{
+		NewID([32]byte{'e', 'v', 'a', ' ', 'l', 'a', 'b', 's'}),
+		NewID([32]byte{'W', 'a', 'l', 'l', 'e', ' ', 'l', 'a', 'b', 's'}),
+		NewID([32]byte{'a', 'v', 'a', ' ', 'l', 'a', 'b', 's'}),
+	}
+	SortIDs(ids)
+	expected := []ID{
+		NewID([32]byte{'W', 'a', 'l', 'l', 'e', ' ', 'l', 'a', 'b', 's'}),
+		NewID([32]byte{'a', 'v', 'a', ' ', 'l', 'a', 'b', 's'}),
+		NewID([32]byte{'e', 'v', 'a', ' ', 'l', 'a', 'b', 's'}),
+	}
+	if !reflect.DeepEqual(ids, expected) {
+		t.Fatal("[]ID was not sorted lexographically")
+	}
+}