blob: abc8b1684f5aaa233117bf4eff6b75c380f2b70d (
plain)
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
|
// Copyright 2019 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 poll_test
import (
"fmt"
"io/fs"
"net"
"os"
"testing"
"time"
)
func TestReadError(t *testing.T) {
t.Run("ErrNotPollable", func(t *testing.T) {
f, err := badStateFile()
if err != nil {
t.Skip(err)
}
defer f.Close()
// Give scheduler a chance to have two separated
// goroutines: an event poller and an event waiter.
time.Sleep(100 * time.Millisecond)
var b [1]byte
_, err = f.Read(b[:])
if perr := parseReadError(err, isBadStateFileError); perr != nil {
t.Fatal(perr)
}
})
}
func parseReadError(nestedErr error, verify func(error) (string, bool)) error {
err := nestedErr
if nerr, ok := err.(*net.OpError); ok {
err = nerr.Err
}
if nerr, ok := err.(*fs.PathError); ok {
err = nerr.Err
}
if nerr, ok := err.(*os.SyscallError); ok {
err = nerr.Err
}
if s, ok := verify(err); !ok {
return fmt.Errorf("got %v; want %s", nestedErr, s)
}
return nil
}
|
