diff --git a/conf.lua b/conf.lua
index 402bada..3a95327 100644
--- a/conf.lua
+++ b/conf.lua
@@ -1,4 +1,5 @@
 function love.conf(t)
+  print("love.conf")
   t.console = true
   t.window.name = 'love.test'
   t.window.width = 360
@@ -17,5 +18,5 @@ end
 function love.errorhandler(msg)
 	msg = tostring(msg)
 	error_printer(msg, 2)
-  os.exit(1)
+  return nil
 end
diff --git a/tests/image.lua b/tests/image.lua
index 7cdcc87..db98882 100644
--- a/tests/image.lua
+++ b/tests/image.lua
@@ -90,7 +90,8 @@ love.test.image.ImageData = function(test)
   love.filesystem.remove('test-encode.png')
 
   -- check encoding to an image (exr)
-  idata:encode('png', 'test-encode.exr')
+  local edata = love.image.newImageData(100, 100, 'r16f')
+  edata:encode('exr', 'test-encode.exr')
   local read2 = love.filesystem.openFile('test-encode.exr', 'r')
   test:assertNotNil(read2)
   love.filesystem.remove('test-encode.exr')