diff --git a/tests/libav.cpp b/tests/libav.cpp
index 6ccdcfa89..d5d121087 100644
--- a/tests/libav.cpp
+++ b/tests/libav.cpp
@@ -13,11 +13,13 @@ class LibavTest : public :: testing::Test {
 TEST_F(LibavTest, LoadImage) {
   auto ncv = notcurses_visual_open(nullptr, "../tools/dsscaw-purp.png");
   ASSERT_NE(nullptr, ncv);
+  ASSERT_NE(nullptr, ncvisual_decode(ncv));
   ncvisual_destroy(ncv);
 }
 
 TEST_F(LibavTest, LoadVideo) {
   auto ncv = notcurses_visual_open(nullptr, "../tools/atliens.mkv");
   ASSERT_NE(nullptr, ncv);
+  ASSERT_NE(nullptr, ncvisual_decode(ncv));
   ncvisual_destroy(ncv);
 }