1 files changed, 26 insertions, 0 deletions
diff --git a/test/test_writer.c b/test/test_writer.c
index 6f336ca4..d7c4eac8 100644
--- a/test/test_writer.c
+++ b/test/test_writer.c
@@ -23,6 +23,31 @@
 #include <string.h>
 
 static void
+test_write_bad_event(void)
+{
+  SerdWorld*  world  = serd_world_new();
+  SerdEnv*    env    = serd_env_new(SERD_EMPTY_STRING());
+  SerdBuffer  buffer = {NULL, 0};
+  SerdWriter* writer =
+    serd_writer_new(world, SERD_TURTLE, 0u, env, serd_buffer_sink, &buffer);
+
+  assert(writer);
+
+  const SerdEvent event = {(SerdEventType)42};
+  assert(serd_sink_write_event(serd_writer_sink(writer), &event) ==
+         SERD_ERR_BAD_ARG);
+
+  char* const out = serd_buffer_sink_finish(&buffer);
+
+  assert(!strcmp(out, ""));
+  serd_free(out);
+
+  serd_writer_free(writer);
+  serd_env_free(env);
+  serd_world_free(world);
+}
+
+static void
 test_write_bad_prefix(void)
 {
   SerdWorld*  world  = serd_world_new();
@@ -148,6 +173,7 @@ test_writer_stack_overflow(void)
 int
 main(void)
 {
+  test_write_bad_event();
   test_write_bad_prefix();
   test_write_long_literal();
   test_writer_stack_overflow();