parser_tests: Add another truncated chapter string test.

Causes mkvparser to fail in a slightly different way.

Change-Id: Id60fd43e6d0ef1871842367d19db52f60a8721cc

testing/parser_tests.cc

@@ -703,6 +703,17 @@ TEST_F(ParserTest, InvalidTruncatedChapterString) {
   EXPECT_EQ(mkvparser::E_PARSE_FAILED, segment_->Load());
 }
 
+TEST_F(ParserTest, InvalidTruncatedChapterString2) {
+  filename_ =
+      GetTestFilePath("invalid/chapters_truncated_chapter_string_2.mkv");
+  ASSERT_NE(0u, filename_.length());
+  ASSERT_EQ(0, reader_.Open(filename_.c_str()));
+  mkvparser::EBMLHeader ebml_header;
+  ASSERT_EQ(0, ebml_header.Parse(&reader_, pos_));
+  ASSERT_EQ(0, mkvparser::Segment::CreateInstance(&reader_, pos_, segment_));
+  EXPECT_EQ(mkvparser::E_FILE_FORMAT_INVALID, segment_->Load());
+}
+
 TEST_F(ParserTest, InvalidFixedLacingSize) {
   filename_ = GetTestFilePath("invalid/fixed_lacing_bad_lace_size.mkv");
   ASSERT_NE(0u, filename_.length());

testing/testdata/invalid/README.libwebm

@@ -1,11 +1,14 @@
 Why the files in this directory are considered invalid:
 
-chapters_truncated_chapter_string.mkv - File with a Chapters element that ends
-                                        with a ChapterAtom whose ChapterDisplay
-                                        element contains a truncated
-                                        ChapterString.
+chapters_truncated_chapter_string.mkv -
+  File with a Chapters element that ends with a ChapterAtom whose ChapterDisplay
+  element contains a truncated ChapterString.
 
-fixed_lacing_bad_lace_size.mkv - File containing a BlockGroup with fixed
-                                 lacing, but reports a total laced size that is
-                                 not evenly divisible by the number of laced
-                                 frames.
+chapters_truncated_chapter_string_2.mkv -
+  Nearly identical to chapters_truncated_chapter_string.mkv, but with a void
+  element and a partial cluster. Causes mkvparser to fail in a slightly
+  different manner.
+
+fixed_lacing_bad_lace_size.mkv -
+  File containing a BlockGroup with fixed lacing, but reports a total laced size
+  that is not evenly divisible by the number of laced frames.