Moved tests + Added more tests + Added memory testing to actions

tests/ev_vec/reducelen_free_elems.c

@@ -0,0 +1,25 @@
+#define EV_VEC_IMPLEMENTATION
+#include "ev_vec.h"
+
+#include <assert.h>
+
+static int free_calls = 0;
+
+static void count_free(void *self)
+{
+  (void)self;
+  free_calls++;
+}
+
+int main(void)
+{
+  ev_vec(i32) v = ev_vec_init(i32, free = count_free);
+  assert(v != NULL);
+
+  free_calls = 0;
+  assert(ev_vec_setlen(&v, 3) == EV_VEC_ERR_NONE);
+  assert(ev_vec_setlen(&v, 1) == EV_VEC_ERR_NONE);
+  assert(free_calls == 2);
+
+  ev_vec_fini(&v);
+}