The variance of a single value is 0

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/dummyresourcewritebenchmark.cpp b/tests/dummyresourcewritebenchmark.cpp
index 2b71b4a..397e5de 100644
--- a/tests/dummyresourcewritebenchmark.cpp
+++ b/tests/dummyresourcewritebenchmark.cpp
@@ -27,6 +27,10 @@
 
 static double variance(const QList<double> &values)
 {
+    //The variance of a single value is 0
+    if (values.size() == 1) {
+        return 0;
+    }
     double mean = 0;
     for (auto value : values) {
         mean += value;