/usr/share/go-1.8/test/fixedbugs/issue16870.go is in golang-1.8-src 1.8.3-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | // run
// Copyright 2016 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.
package main
import (
"log"
"reflect"
)
func test(got, want interface{}) {
if !reflect.DeepEqual(got, want) {
log.Fatalf("got %v, want %v", got, want)
}
}
func main() {
var i int
var ip *int
var ok interface{}
// Channel receives.
c := make(chan int, 1)
c2 := make(chan int)
c <- 42
i, ok = <-c
test(i, 42)
test(ok, true)
c <- 42
_, ok = <-c
test(ok, true)
c <- 42
select {
case i, ok = <-c:
test(i, 42)
test(ok, true)
}
c <- 42
select {
case _, ok = <-c:
test(ok, true)
}
c <- 42
select {
case i, ok = <-c:
test(i, 42)
test(ok, true)
default:
log.Fatal("bad select")
}
c <- 42
select {
case _, ok = <-c:
test(ok, true)
default:
log.Fatal("bad select")
}
c <- 42
select {
case i, ok = <-c:
test(i, 42)
test(ok, true)
case <-c2:
log.Fatal("bad select")
}
c <- 42
select {
case _, ok = <-c:
test(ok, true)
case <-c2:
log.Fatal("bad select")
}
close(c)
i, ok = <-c
test(i, 0)
test(ok, false)
_, ok = <-c
test(ok, false)
// Map indexing.
m := make(map[int]int)
i, ok = m[0]
test(i, 0)
test(ok, false)
_, ok = m[0]
test(ok, false)
m[0] = 42
i, ok = m[0]
test(i, 42)
test(ok, true)
_, ok = m[0]
test(ok, true)
// Type assertions.
var u interface{}
i, ok = u.(int)
test(i, 0)
test(ok, false)
ip, ok = u.(*int)
test(ip, (*int)(nil))
test(ok, false)
_, ok = u.(int)
test(ok, false)
u = 42
i, ok = u.(int)
test(i, 42)
test(ok, true)
_, ok = u.(int)
test(ok, true)
u = &i
ip, ok = u.(*int)
test(ip, &i)
test(ok, true)
_, ok = u.(*int)
test(ok, true)
}
|