| // run |
| |
| // Copyright 2020 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // Check to make sure that we compare fields in order. See issue 8606. |
| |
| package main |
| |
| import "fmt" |
| |
| func main() { |
| type A [2]interface{} |
| type S struct{ x, y interface{} } |
| |
| for _, test := range []struct { |
| panic bool |
| a, b interface{} |
| }{ |
| {false, A{1, []byte{1}}, A{2, []byte{1}}}, |
| {true, A{[]byte{1}, 1}, A{[]byte{1}, 2}}, |
| {false, S{1, []byte{1}}, S{2, []byte{1}}}, |
| {true, S{[]byte{1}, 1}, S{[]byte{1}, 2}}, |
| {false, A{1, []byte{1}}, A{"2", []byte{1}}}, |
| {true, A{[]byte{1}, 1}, A{[]byte{1}, "2"}}, |
| {false, S{1, []byte{1}}, S{"2", []byte{1}}}, |
| {true, S{[]byte{1}, 1}, S{[]byte{1}, "2"}}, |
| } { |
| f := func() { |
| if test.a == test.b { |
| panic(fmt.Sprintf("values %#v and %#v should not be equal", test.a, test.b)) |
| } |
| } |
| if test.panic { |
| shouldPanic(fmt.Sprintf("comparing %#v and %#v did not panic", test.a, test.b), f) |
| } else { |
| f() // should not panic |
| } |
| } |
| } |
| |
| func shouldPanic(name string, f func()) { |
| defer func() { |
| if recover() == nil { |
| panic(name) |
| } |
| }() |
| f() |
| } |