.config/coc/extensions/coc-go-data/tools/pkg/mod/github.com/google/go-cmp@v0.5.1/cmp/example_reporter_test.go

   1 // Copyright 2019, 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.md file.
   4
   5 package cmp_test
   6
   7 import (
   8         "fmt"
   9         "strings"
  10
  11         "github.com/google/go-cmp/cmp"
  12 )
  13
  14 // DiffReporter is a simple custom reporter that only records differences
  15 // detected during comparison.
  16 type DiffReporter struct {
  17         path  cmp.Path
  18         diffs []string
  19 }
  20
  21 func (r *DiffReporter) PushStep(ps cmp.PathStep) {
  22         r.path = append(r.path, ps)
  23 }
  24
  25 func (r *DiffReporter) Report(rs cmp.Result) {
  26         if !rs.Equal() {
  27                 vx, vy := r.path.Last().Values()
  28                 r.diffs = append(r.diffs, fmt.Sprintf("%#v:\n\t-: %+v\n\t+: %+v\n", r.path, vx, vy))
  29         }
  30 }
  31
  32 func (r *DiffReporter) PopStep() {
  33         r.path = r.path[:len(r.path)-1]
  34 }
  35
  36 func (r *DiffReporter) String() string {
  37         return strings.Join(r.diffs, "\n")
  38 }
  39
  40 func ExampleReporter() {
  41         x, y := MakeGatewayInfo()
  42
  43         var r DiffReporter
  44         cmp.Equal(x, y, cmp.Reporter(&r))
  45         fmt.Print(r.String())
  46
  47         // Output:
  48         // {cmp_test.Gateway}.IPAddress:
  49         //      -: 192.168.0.1
  50         //      +: 192.168.0.2
  51         //
  52         // {cmp_test.Gateway}.Clients[4].IPAddress:
  53         //      -: 192.168.0.219
  54         //      +: 192.168.0.221
  55         //
  56         // {cmp_test.Gateway}.Clients[5->?]:
  57         //      -: {Hostname:americano IPAddress:192.168.0.188 LastSeen:2009-11-10 23:03:05 +0000 UTC}
  58         //      +: <invalid reflect.Value>
  59 }