Dan Willemsen | bc60c3c | 2021-12-15 01:09:00 -0800 | [diff] [blame] | 1 | // Copyright 2021 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | package main |
| 6 | |
| 7 | import ( |
| 8 | "a" |
| 9 | "bytes" |
| 10 | "fmt" |
| 11 | ) |
| 12 | |
| 13 | func TestMap() { |
| 14 | m := a.New[[]byte, int](bytes.Compare) |
| 15 | |
| 16 | if _, found := m.Find([]byte("a")); found { |
| 17 | panic(fmt.Sprintf("unexpectedly found %q in empty map", []byte("a"))) |
| 18 | } |
| 19 | |
| 20 | for _, c := range []int{'a', 'c', 'b'} { |
| 21 | if !m.Insert([]byte(string(c)), c) { |
| 22 | panic(fmt.Sprintf("key %q unexpectedly already present", []byte(string(c)))) |
| 23 | } |
| 24 | } |
| 25 | if m.Insert([]byte("c"), 'x') { |
| 26 | panic(fmt.Sprintf("key %q unexpectedly not present", []byte("c"))) |
| 27 | } |
| 28 | |
| 29 | if v, found := m.Find([]byte("a")); !found { |
| 30 | panic(fmt.Sprintf("did not find %q", []byte("a"))) |
| 31 | } else if v != 'a' { |
| 32 | panic(fmt.Sprintf("key %q returned wrong value %c, expected %c", []byte("a"), v, 'a')) |
| 33 | } |
| 34 | if v, found := m.Find([]byte("c")); !found { |
| 35 | panic(fmt.Sprintf("did not find %q", []byte("c"))) |
| 36 | } else if v != 'x' { |
| 37 | panic(fmt.Sprintf("key %q returned wrong value %c, expected %c", []byte("c"), v, 'x')) |
| 38 | } |
| 39 | |
| 40 | if _, found := m.Find([]byte("d")); found { |
| 41 | panic(fmt.Sprintf("unexpectedly found %q", []byte("d"))) |
| 42 | } |
| 43 | |
| 44 | gather := func(it *a.Iterator[[]byte, int]) []int { |
| 45 | var r []int |
| 46 | for { |
| 47 | _, v, ok := it.Next() |
| 48 | if !ok { |
| 49 | return r |
| 50 | } |
| 51 | r = append(r, v) |
| 52 | } |
| 53 | } |
| 54 | got := gather(m.Iterate()) |
| 55 | want := []int{'a', 'b', 'x'} |
| 56 | if !a.SliceEqual(got, want) { |
| 57 | panic(fmt.Sprintf("Iterate returned %v, want %v", got, want)) |
| 58 | } |
| 59 | |
| 60 | } |
| 61 | |
| 62 | func main() { |
| 63 | TestMap() |
| 64 | } |