2 files changed, 60 insertions, 0 deletions
diff --git a/test/meson.build b/test/meson.build
index ffd65a17..ad3797df 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -126,6 +126,7 @@ unit_tests = [
   'reader_writer',
   'sink',
   'string',
+  'syntax',
   'uri',
   'writer',
 ]
diff --git a/test/test_syntax.c b/test/test_syntax.c
new file mode 100644
index 00000000..19f4a463
--- /dev/null
+++ b/test/test_syntax.c
@@ -0,0 +1,59 @@
+// Copyright 2023 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: ISC
+
+#undef NDEBUG
+
+#include "serd/syntax.h"
+
+#include <assert.h>
+
+static void
+test_syntax_by_name(void)
+{
+  assert(serd_syntax_by_name("unknown") == (SerdSyntax)0);
+  assert(serd_syntax_by_name("") == (SerdSyntax)0);
+
+  assert(serd_syntax_by_name("Turtle") == SERD_TURTLE);
+  assert(serd_syntax_by_name("NTriples") == SERD_NTRIPLES);
+  assert(serd_syntax_by_name("NQuads") == SERD_NQUADS);
+  assert(serd_syntax_by_name("TriG") == SERD_TRIG);
+
+  assert(serd_syntax_by_name("turtle") == SERD_TURTLE);
+  assert(serd_syntax_by_name("ntriples") == SERD_NTRIPLES);
+  assert(serd_syntax_by_name("nquads") == SERD_NQUADS);
+  assert(serd_syntax_by_name("trig") == SERD_TRIG);
+}
+
+static void
+test_guess_syntax(void)
+{
+  assert(serd_guess_syntax("file.txt") == (SerdSyntax)0);
+  assert(serd_guess_syntax("") == (SerdSyntax)0);
+  assert(serd_guess_syntax("nodot.") == (SerdSyntax)0);
+  assert(serd_guess_syntax("noext.") == (SerdSyntax)0);
+  assert(serd_guess_syntax(".hidden") == (SerdSyntax)0);
+
+  assert(serd_guess_syntax("file.ttl") == SERD_TURTLE);
+  assert(serd_guess_syntax("file.nt") == SERD_NTRIPLES);
+  assert(serd_guess_syntax("file.nq") == SERD_NQUADS);
+  assert(serd_guess_syntax("file.trig") == SERD_TRIG);
+}
+
+static void
+test_syntax_has_graphs(void)
+{
+  assert(!serd_syntax_has_graphs((SerdSyntax)0));
+  assert(!serd_syntax_has_graphs(SERD_TURTLE));
+  assert(!serd_syntax_has_graphs(SERD_NTRIPLES));
+  assert(serd_syntax_has_graphs(SERD_NQUADS));
+  assert(serd_syntax_has_graphs(SERD_TRIG));
+}
+
+int
+main(void)
+{
+  test_syntax_by_name();
+  test_guess_syntax();
+  test_syntax_has_graphs();
+  return 0;
+}