panic!

about_panics.go

@@ -1,5 +1,10 @@
 package go_koans
 
-func aboutPanics() {
-  panic("crap")
+func divideFourBy(i int) int {
+  return 4 / i
+}
+
+func aboutPanics() {
+  n := divideFourBy(0)
+  assert(n == 2) // panics are exceptional errors at runtime
 }

setup_koans_test.go

@@ -33,7 +33,7 @@ func TestKoans(t *testing.T) {
   aboutStructs()
   aboutAllocation()
   aboutConcurrency()
-  //aboutPanics()
+  aboutPanics()
 
   fmt.Printf("\n%c[32;1mYou won life. Good job.\n\n", 27)
 }