Add catch2 testing framework and integrate with CMake

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/tests.cc b/tests/tests.cc
new file mode 100644
index 0000000..d866172
--- /dev/null
+++ b/tests/tests.cc
@@ -0,0 +1,11 @@
+#define CATCH_CONFIG_MAIN
+#include "catch2/catch.hpp"
+#include "fact.h"
+
+TEST_CASE( "factorials are computed", "[factorial]")
+{
+    REQUIRE( factorial(1) == 1 );
+    REQUIRE( factorial(2) == 2 );
+    REQUIRE( factorial(3) == 6 );
+    REQUIRE( factorial(10) == 3628800 );
+}