|
| 1 | +package websocket_test |
| 2 | + |
| 3 | +import ( |
| 4 | + "reflect" |
| 5 | + |
| 6 | + "github.com/google/go-cmp/cmp" |
| 7 | +) |
| 8 | + |
| 9 | +// https://github.com/google/go-cmp/issues/40#issuecomment-328615283 |
| 10 | +func cmpDiff(exp, act interface{}) string { |
| 11 | + return cmp.Diff(exp, act, deepAllowUnexported(exp, act)) |
| 12 | +} |
| 13 | + |
| 14 | +func deepAllowUnexported(vs ...interface{}) cmp.Option { |
| 15 | + m := make(map[reflect.Type]struct{}) |
| 16 | + for _, v := range vs { |
| 17 | + structTypes(reflect.ValueOf(v), m) |
| 18 | + } |
| 19 | + var typs []interface{} |
| 20 | + for t := range m { |
| 21 | + typs = append(typs, reflect.New(t).Elem().Interface()) |
| 22 | + } |
| 23 | + return cmp.AllowUnexported(typs...) |
| 24 | +} |
| 25 | + |
| 26 | +func structTypes(v reflect.Value, m map[reflect.Type]struct{}) { |
| 27 | + if !v.IsValid() { |
| 28 | + return |
| 29 | + } |
| 30 | + switch v.Kind() { |
| 31 | + case reflect.Ptr: |
| 32 | + if !v.IsNil() { |
| 33 | + structTypes(v.Elem(), m) |
| 34 | + } |
| 35 | + case reflect.Interface: |
| 36 | + if !v.IsNil() { |
| 37 | + structTypes(v.Elem(), m) |
| 38 | + } |
| 39 | + case reflect.Slice, reflect.Array: |
| 40 | + for i := 0; i < v.Len(); i++ { |
| 41 | + structTypes(v.Index(i), m) |
| 42 | + } |
| 43 | + case reflect.Map: |
| 44 | + for _, k := range v.MapKeys() { |
| 45 | + structTypes(v.MapIndex(k), m) |
| 46 | + } |
| 47 | + case reflect.Struct: |
| 48 | + m[v.Type()] = struct{}{} |
| 49 | + for i := 0; i < v.NumField(); i++ { |
| 50 | + structTypes(v.Field(i), m) |
| 51 | + } |
| 52 | + } |
| 53 | +} |
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