From 0a772062c77707f667d4a310133c87bc29ace917 Mon Sep 17 00:00:00 2001
From: Arseny Balobanov <verytable@yandex.ru>
Date: Wed, 18 Mar 2020 01:04:54 +0300
Subject: [PATCH] externalsort: make merge test stronger.

---
 externalsort/sort_test.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/externalsort/sort_test.go b/externalsort/sort_test.go
index 9499725..57e4931 100644
--- a/externalsort/sort_test.go
+++ b/externalsort/sort_test.go
@@ -24,11 +24,14 @@ func TestMerge(t *testing.T) {
 			name: "simple",
 			in: []string{`0`, `1
 1
-1`},
+1`, `0
+2`},
 			out: `0
+0
 1
 1
 1
+2
 `,
 		},
 		{