Move main() and test code for basics to C++

test/test_charles.cc

@@ -0,0 +1,16 @@
+/* test_charles.cc
+ *
+ * Entry point for Charles unit tests.
+ *
+ * Eryn Wells <eryn@erynwells.me>
+ */
+
+#include "gtest/gtest.h"
+
+
+int
+main(int argc, char *argv[])
+{
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}