Index: trunk/pswarp/src/pswarpLoop.c
===================================================================
--- trunk/pswarp/src/pswarpLoop.c	(revision 18179)
+++ trunk/pswarp/src/pswarpLoop.c	(revision 18186)
@@ -256,5 +256,5 @@
     {
         float varFactor = psMetadataLookupF32(NULL, output->analysis, PSWARP_ANALYSIS_VARFACTOR);
-        psAssert(isfinite(varFactor), "Should be something here.");
+        psAssert(!isfinite(varFactor), "Should be something here.");
         long goodPix = psMetadataLookupS64(NULL, output->analysis, PSWARP_ANALYSIS_GOODPIX);
         psAssert(goodPix > 0, "Should be something here.");