Core (Tests): Add unit test for image saving.

Author: kaixiong

libvisual/tests/video_test/CMakeLists.txt

@@ -13,6 +13,11 @@ LV_BUILD_TEST(video_load_test
   LINK_LIBS video_test_common
 )
 
+LV_BUILD_TEST(video_save_test
+  SOURCES video_save_test.cpp
+  LINK_LIBS video_test_common
+)
+
 ADD_LIBRARY(video_test_common STATIC common.cpp)
 TARGET_LINK_LIBRARIES(video_test_common PUBLIC libvisual)
 

libvisual/tests/video_test/video_save_test.cpp

@@ -0,0 +1,53 @@
+#include "test.h"
+#include <libvisual/libvisual.h>
+#include <sstream>
+
+void test_save_indexed8 ()
+{
+      auto png_image {LV::Video::create_from_file ("../images/additive-colors-indexed8.png")};
+      LV_TEST_ASSERT (png_image);
+
+      std::stringstream buffer;
+      LV_TEST_ASSERT (png_image->save_to_stream (buffer, "png"));
+
+      auto png_saved_image {LV::Video::create_from_stream (buffer)};
+      LV_TEST_ASSERT (png_saved_image);
+      LV_TEST_ASSERT (png_saved_image->has_same_content (png_image));
+}
+
+void test_save_rgb24 ()
+{
+      auto png_image {LV::Video::create_from_file ("../images/additive-colors-rgb24.png")};
+      LV_TEST_ASSERT (png_image);
+
+      std::stringstream buffer;
+      LV_TEST_ASSERT (png_image->save_to_stream (buffer, "png"));
+
+      auto png_saved_image {LV::Video::create_from_stream (buffer)};
+      LV_TEST_ASSERT (png_saved_image);
+      LV_TEST_ASSERT (png_saved_image->has_same_content (png_image));
+}
+
+void test_save_argb32 ()
+{
+      auto png_image {LV::Video::create_from_file ("../images/additive-colors-argb32.png")};
+      LV_TEST_ASSERT (png_image);
+
+      std::stringstream buffer;
+      LV_TEST_ASSERT (png_image->save_to_stream (buffer, "png"));
+
+      auto png_saved_image {LV::Video::create_from_stream (buffer)};
+      LV_TEST_ASSERT (png_saved_image);
+      LV_TEST_ASSERT (png_saved_image->has_same_content (png_image));
+}
+
+int main (int argc, char* argv[])
+{
+    LV::System::init (argc, argv);
+
+    test_save_indexed8 ();
+    test_save_rgb24 ();
+    test_save_argb32 ();
+
+    LV::System::destroy ();
+}