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
|
// run
//go:build !js && !wasip1 && gc
// Copyright 2017 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.
// As of "Mon 6 Nov 2017", run.go doesn't yet have proper
// column matching so instead match the output manually
// by exec-ing
package main
import (
"fmt"
"io/ioutil"
"log"
"os"
"os/exec"
"strings"
)
func main() {
f, err := ioutil.TempFile("", "issue21317.go")
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(f, `
package main
import "fmt"
func main() {
n, err := fmt.Println(1)
}
`)
f.Close()
defer os.RemoveAll(f.Name())
// compile and test output
cmd := exec.Command("go", "tool", "compile", "-p=main", "-importcfg="+os.Getenv("STDLIB_IMPORTCFG"), f.Name())
out, err := cmd.CombinedOutput()
if err == nil {
log.Fatalf("expected cmd/compile to fail")
}
wantErrs := []string{
"7:9: n declared and not used",
"7:12: err declared and not used",
}
outStr := string(out)
for _, want := range wantErrs {
if !strings.Contains(outStr, want) {
log.Fatalf("failed to match %q\noutput: %q", want, outStr)
}
}
}
|
