Imported Upstream version 8.2.2

[platform/upstream/harfbuzz.git] / test / api / test-cplusplus.cc

diff --git a/test/api/test-cplusplus.cc b/test/api/test-cplusplus.cc
index 3313d74..01b0002 100644 (file)
--- a/test/api/test-cplusplus.cc
+++ b/test/api/test-cplusplus.cc
@@ -1,5 +1,6 @@
 /*
  * Copyright © 2011  Google, Inc.
+ * Copyright © 2022  Behdad Esfahbod
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
@@ -24,7 +25,101 @@
  * Google Author(s): Behdad Esfahbod
  */
 
-/* This file tests that all headers can be included from .cc files */
+/* This file tests that all headers can be included from C++ files,
+ * as well as test the C++ API. */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 
-#include "test-c.c"
+#include <hb.h>
+#include <hb-subset.h>
+#include <hb-ot.h>
+#include <hb-aat.h>
+
+#ifdef HAVE_GLIB
+#include <hb-glib.h>
+#endif
+
+#ifdef HAVE_ICU
+#include <hb-icu.h>
+#endif
+
+#ifdef HAVE_FREETYPE
+#include <hb-ft.h>
+#endif
+
+#ifdef HAVE_UNISCRIBE
+#include <hb-uniscribe.h>
+#endif
+
+#ifdef HAVE_CORETEXT
+#include <hb-coretext.h>
+#endif
+
+
+/* Test C++ API. */
+
+#include "hb-cplusplus.hh"
+
+#include <cassert>
+#include <functional>
+#include <utility>
+
+int
+main ()
+{
+  hb_buffer_t *b = hb_buffer_create ();
+  hb::shared_ptr<hb_buffer_t> pb {b};
+
+  /* Test copy-construction. */
+  assert (bool (pb));
+  hb::shared_ptr<hb_buffer_t> pb2 {pb};
+  assert (bool (pb2));
+  assert (bool (pb));
+
+  /* Test move-construction. */
+  assert (bool (pb2));
+  hb::shared_ptr<hb_buffer_t> pb4 {std::move (pb2)};
+  assert (!bool (pb2));
+  assert (bool (pb4));
+
+  /* Test copy-assignment. */
+  hb::shared_ptr<hb_buffer_t> pb3;
+  assert (!bool (pb3));
+  pb3 = pb;
+  assert (bool (pb3));
+  assert (bool (pb));
+
+  /* Test move-assignment. */
+  assert (bool (pb));
+  pb2 = std::move (pb);
+  assert (!bool (pb));
+
+  pb.reference ();
+  pb.destroy ();
+
+  pb3.reference ();
+  pb3.destroy ();
+
+  pb3.swap (pb4);
+
+  hb_user_data_key_t key;
+  pb.set_user_data (&key, b, nullptr, true);
+  (void) pb.get_user_data (&key);
+
+  hb::unique_ptr<hb_buffer_t> pb5 {pb3.reference ()};
+
+
+  /* Test that shared_ptr / unique_ptr are std::hash'able, and that they
+   * return the same hash (which is the underlying pointer's hash. */
+  std::hash<hb_buffer_t *> hash {};
+  std::hash<hb::shared_ptr<hb_buffer_t>> hash2 {};
+  std::hash<hb::unique_ptr<hb_buffer_t>> hash3 {};
+
+  assert (hash (b) == hash2 (pb4));
+  assert (hash2 (pb4) == hash2 (pb2));
+  assert (hash (b) == hash3 (pb5));
+
+  return pb == pb.get_empty () || pb == pb2;
+}