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-rw-r--r--test/libapt/fileutl_test.cc12
1 files changed, 12 insertions, 0 deletions
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));