1 files changed, 31 insertions, 0 deletions
diff --git a/test/test_writer.c b/test/test_writer.c
index f76cc800..ee602044 100644
--- a/test/test_writer.c
+++ b/test/test_writer.c
@@ -406,6 +406,36 @@ test_write_pname_escapes(void)
   check_pname_escape((const char*)last_escape, "eg:s\n\teg:p eg:wx%C3%B7 .\n");
 }
 
+static void
+test_write_bad_uri(void)
+{
+  SerdWorld*       world  = serd_world_new();
+  SerdEnv*         env    = serd_env_new(serd_empty_string());
+  SerdNode*        s      = serd_new_uri(serd_string("http://example.org/s"));
+  SerdNode*        p      = serd_new_uri(serd_string("http://example.org/p"));
+  SerdNode*        rel    = serd_new_uri(serd_string("rel"));
+  SerdBuffer       buffer = {NULL, 0};
+  SerdOutputStream output = serd_open_output_buffer(&buffer);
+  SerdWriter*      writer =
+    serd_writer_new(world, SERD_NTRIPLES, 0U, env, &output, 1);
+
+  assert(writer);
+
+  const SerdStatus st =
+    serd_sink_write(serd_writer_sink(writer), 0U, s, p, rel, NULL);
+  assert(st);
+  assert(st == SERD_BAD_ARG);
+
+  serd_writer_free(writer);
+  serd_close_output(&output);
+  serd_free(buffer.buf);
+  serd_node_free(rel);
+  serd_node_free(p);
+  serd_node_free(s);
+  serd_env_free(env);
+  serd_world_free(world);
+}
+
 int
 main(void)
 {
@@ -418,6 +448,7 @@ main(void)
   test_writer_stack_overflow();
   test_write_empty_syntax();
   test_write_pname_escapes();
+  test_write_bad_uri();
 
   return 0;
 }