Add test for negative list length

2 files changed, 7 insertions, 0 deletions

diff --git a/test/read_test.cpp b/test/read_test.cpp
index 85970fc069..a45d74b1f6 100644
--- a/test/read_test.cpp
+++ b/test/read_test.cpp
@@ -167,6 +167,13 @@ void test_read_errors()
     ASSERT(file);
     EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
     ASSERT(!file);
+
+    //Negative list length
+    file.close();
+    file.open("errortest_neg_length", std::ios::binary);
+    ASSERT(file);
+    EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
+    ASSERT(!file);
 }
 
 int main()
diff --git a/test/testfiles/errortest_neg_length b/test/testfiles/errortest_neg_length
new file mode 100644
index 0000000000..228de89545
--- /dev/null
+++ b/test/testfiles/errortest_neg_length