Fix an issue where matrices would not get printed out on test failure.

diff --git a/test_util.cpp b/test_util.cpp
index 648e64793a5031a9013f01c202577bd86b212bd4..ed8b92a93990e974b0cb1d385d3eda952075614c 100644 (file)
--- a/test_util.cpp
+++ b/test_util.cpp
@@ -385,7 +385,7 @@ void expect_equal(const float *ref, const float *result, unsigned width, unsigne
        float rms = sqrt(squared_difference) / (width * height);
        EXPECT_LT(rms, rms_limit);
 
        float rms = sqrt(squared_difference) / (width * height);
        EXPECT_LT(rms, rms_limit);
 

-       if (largest_difference >= largest_difference_limit || rms >= rms_limit) {
+       if (largest_difference >= largest_difference_limit || isnan(rms) || rms >= rms_limit) {

                fprintf(stderr, "Dumping matrices for easier debugging, since at least one test failed.\n");
 
                fprintf(stderr, "Reference:\n");
                fprintf(stderr, "Dumping matrices for easier debugging, since at least one test failed.\n");
 
                fprintf(stderr, "Reference:\n");