Let's run these tests and see the output. We'll use the -v flag while running the tests to see the output of each individual test:

$ go test -v ./{variadic_test.go,variadic.go}                                                                                                              
=== RUN   TestSimpleVariadicToSlice        
--- PASS: TestSimpleVariadicToSlice (0.00s)                                           
        variadic_test.go:10: simpleVariadicToSlice() -> nil                           
        variadic_test.go:26: simpleVariadicToSlice(1, 2, 3) -> []int{1, 2, 3}         
        variadic_test.go:41: simpleVariadicToSlice([]int{1, 2, 3}...) -> []int{1, 2, 3}                                                                                      
=== RUN   TestMixedVariadicToSlice         
--- PASS: TestMixedVariadicToSlice (0.00s) 
        variadic_test.go:49: Received as expected: Bob, <nil slice>                   
PASS                                       
ok      command-line-arguments  0.001s