package graphics_test import ( "testing" . "." ) func TestClp2(t *testing.T) { testCases := []struct { expected uint64 arg uint64 }{ {256, 255}, {256, 256}, {512, 257}, } for _, testCase := range testCases { got := Clp2(testCase.arg) wanted := testCase.expected if wanted != got { t.Errorf("Clp(%d) = %d, wanted %d", testCase.arg, got, wanted) } } }