Add catch2 testing framework and integrate with CMake

1 files changed, 7 insertions, 0 deletions

diff --git a/src/fact/fact.cc b/src/fact/fact.cc
new file mode 100644
index 0000000..026ad94
--- /dev/null
+++ b/src/fact/fact.cc
@@ -0,0 +1,7 @@
+#include "fact.h"
+
+unsigned int
+factorial(unsigned int number)
+{
+    return number <= 1 ? number : factorial(number-1)*number;
+}