From 76de4234a1928e9dd9af23320880d069817b5000 Mon Sep 17 00:00:00 2001
From: Tsuda Kageyu <tsuda.kageyu@gmail.com>
Date: Tue, 17 Nov 2015 15:05:43 +0900
Subject: [PATCH] Add a test for the CRC checksum of Ogg pages.

---
 tests/test_ogg.cpp | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tests/test_ogg.cpp b/tests/test_ogg.cpp
index 210fca2f..90ae162d 100644
--- a/tests/test_ogg.cpp
+++ b/tests/test_ogg.cpp
@@ -21,6 +21,7 @@ class TestOGG : public CppUnit::TestFixture
   CPPUNIT_TEST(testDictInterface1);
   CPPUNIT_TEST(testDictInterface2);
   CPPUNIT_TEST(testAudioProperties);
+  CPPUNIT_TEST(testPageChecksum);
   CPPUNIT_TEST_SUITE_END();
 
 public:
@@ -134,6 +135,30 @@ public:
     CPPUNIT_ASSERT_EQUAL(112000, f.audioProperties()->bitrateNominal());
     CPPUNIT_ASSERT_EQUAL(0, f.audioProperties()->bitrateMinimum());
   }
+
+  void testPageChecksum()
+  {
+    ScopedFileCopy copy("empty", ".ogg");
+
+    {
+      Vorbis::File f(copy.fileName().c_str());
+      f.tag()->setArtist("The Artist");
+      f.save();
+
+      f.seek(0x50);
+      CPPUNIT_ASSERT_EQUAL((TagLib::uint)0x3d3bd92d, f.readBlock(4).toUInt(0, true));
+    }
+    {
+      Vorbis::File f(copy.fileName().c_str());
+      f.tag()->setArtist("The Artist 2");
+      f.save();
+
+      f.seek(0x50);
+      CPPUNIT_ASSERT_EQUAL((TagLib::uint)0xd985291c, f.readBlock(4).toUInt(0, true));
+    }
+
+  }
+
 };
 
 CPPUNIT_TEST_SUITE_REGISTRATION(TestOGG);