Add empty syntax type for suppressing output

1 files changed, 33 insertions, 0 deletions

diff --git a/test/test_writer.c b/test/test_writer.c
index 1334bb02..6066b6e3 100644
--- a/test/test_writer.c
+++ b/test/test_writer.c
@@ -293,6 +293,38 @@ test_writer_stack_overflow(void)
   serd_world_free(world);
 }
 
+static void
+test_write_empty_syntax(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* o = serd_new_curie(serd_string("eg:o"));
+
+  SerdBuffer buffer = {NULL, 0};
+
+  SerdWriter* writer = serd_writer_new(
+    world, SERD_SYNTAX_EMPTY, 0U, env, serd_buffer_sink, &buffer);
+
+  assert(writer);
+
+  assert(!serd_sink_write(serd_writer_sink(writer), 0U, s, p, o, NULL));
+
+  char* out = serd_buffer_sink_finish(&buffer);
+
+  assert(strlen(out) == 0);
+  serd_free(out);
+
+  serd_writer_free(writer);
+  serd_node_free(o);
+  serd_node_free(p);
+  serd_node_free(s);
+  serd_env_free(env);
+  serd_world_free(world);
+}
+
 int
 main(void)
 {
@@ -303,6 +335,7 @@ main(void)
   test_strict_write();
   test_write_error();
   test_writer_stack_overflow();
+  test_write_empty_syntax();
 
   return 0;
 }