Add test for NUL-LF sequence

1 files changed, 7 insertions, 0 deletions

diff --git a/api_test/main.c b/api_test/main.c
index d493e00..d87e446 100644
--- a/api_test/main.c
+++ b/api_test/main.c
@@ -732,6 +732,13 @@ static void utf8(test_batch_runner *runner) {
       string_with_null, sizeof(string_with_null) - 1, CMARK_OPT_DEFAULT);
   STR_EQ(runner, html, "<p>((((" UTF8_REPL "))))</p>\n", "utf8 with U+0000");
   free(html);
+
+  // Test NUL followed by newline
+  static const char string_with_nul_lf[] = "```\n\0\n```\n";
+  html = cmark_markdown_to_html(
+      string_with_nul_lf, sizeof(string_with_nul_lf) - 1, CMARK_OPT_DEFAULT);
+  STR_EQ(runner, html, "<pre><code>\xef\xbf\xbd\n</code></pre>\n", "utf8 with \\0\\n");
+  free(html);
 }
 
 static void test_char(test_batch_runner *runner, int valid, const char *utf8,