Fix DCP content font ID allocation to cope with DCPs that have multiple fonts

[dcpomatic.git] / test / font_id_allocator_test.cc

diff --git a/test/font_id_allocator_test.cc b/test/font_id_allocator_test.cc
new file mode 100644 (file)
index 0000000..7c93c6b
--- /dev/null
+++ b/test/font_id_allocator_test.cc
@@ -0,0 +1,72 @@
+/*
+    Copyright (C) 2023 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "lib/font_id_allocator.h"
+#include <boost/test/unit_test.hpp>
+
+
+BOOST_AUTO_TEST_CASE(font_id_allocator_test_without_disambiguation)
+{
+       FontIDAllocator allocator;
+
+       /* Reel 0 has just one asset with two fonts */
+       allocator.add_font(0, "asset1", "font");
+       allocator.add_font(0, "asset1", "font2");
+
+       /* Reel 1 has two assets each with two more fonts */
+       allocator.add_font(1, "asset2", "font");
+       allocator.add_font(1, "asset2", "font2");
+       allocator.add_font(1, "asset3", "font3");
+       allocator.add_font(1, "asset3", "font4");
+
+       allocator.allocate();
+
+       BOOST_CHECK(allocator.font_id(0, "asset1", "font") == "0_font");
+       BOOST_CHECK(allocator.font_id(0, "asset1", "font2") == "0_font2");
+       BOOST_CHECK(allocator.font_id(1, "asset2", "font") == "1_font");
+       BOOST_CHECK(allocator.font_id(1, "asset2", "font2") == "1_font2");
+       BOOST_CHECK(allocator.font_id(1, "asset3", "font3") == "1_font3");
+       BOOST_CHECK(allocator.font_id(1, "asset3", "font4") == "1_font4");
+}
+
+
+BOOST_AUTO_TEST_CASE(font_id_allocator_test_with_disambiguation)
+{
+       FontIDAllocator allocator;
+
+       /* Reel 0 has two assets each with a font with the same ID (perhaps a subtitle and a ccap).
+        * This would have crashed DCP-o-matic before the FontIDAllocator change (bug #2600)
+        * so it's OK if the second font gets a new index that we didn't see before.
+        */
+       allocator.add_font(0, "asset1", "font");
+       allocator.add_font(0, "asset2", "font");
+
+       /* Reel 1 has one asset with another font */
+       allocator.add_font(1, "asset3", "font1");
+
+       allocator.allocate();
+
+       BOOST_CHECK(allocator.font_id(0, "asset1", "font") == "0_font");
+       /* This should get a prefix that is higher than any reel index */
+       BOOST_CHECK(allocator.font_id(0, "asset2", "font") == "2_font");
+       BOOST_CHECK(allocator.font_id(1, "asset3", "font1") == "1_font1");
+}
+