From 5fafaf27a5f066dc15d96c03ef154fd1d59eb891 Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <jak@debian.org>
Date: Wed, 10 Feb 2016 13:29:19 +0100
Subject: test that seeking to a position earlier in the file works

This tests the fix for #812994, #813000

Gbp-Dch: ignore
---
 test/libapt/fileutl_test.cc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/libapt/fileutl_test.cc b/test/libapt/fileutl_test.cc
index 7d1368f7a..607c4a195 100644
--- a/test/libapt/fileutl_test.cc
+++ b/test/libapt/fileutl_test.cc
@@ -82,6 +82,18 @@ static void TestFileFd(mode_t const a_umask, mode_t const ExpectedFilePermission
       EXPECT_N_STR(expect, readback);
       EXPECT_EQ(test.size(), f.Tell());
    }
+   // Non-zero backwards seek
+   {
+      APT_INIT_READBACK
+      char const * const expect = "is";
+      EXPECT_EQ(test.size(), f.Tell());
+      EXPECT_TRUE(f.Seek(5));
+      EXPECT_TRUE(f.Read(readback, strlen(expect)));
+      EXPECT_FALSE(f.Failed());
+      EXPECT_FALSE(f.Eof());
+      EXPECT_N_STR(expect, readback);
+      EXPECT_EQ(7, f.Tell());
+   }
    {
       APT_INIT_READBACK
       EXPECT_TRUE(f.Seek(0));
-- 
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