mirror of
https://github.com/golang/go
synced 2024-11-23 11:10:04 -07:00
319b75ed33
Fixes #58141 Co-authored-by: Richard Musiol <neelance@gmail.com> Co-authored-by: Achille Roussel <achille.roussel@gmail.com> Co-authored-by: Julien Fabre <ju.pryz@gmail.com> Co-authored-by: Evan Phoenix <evan@phx.io> Change-Id: I49b66946acc90fdf09ed9223096bfec9a1e5b923 Reviewed-on: https://go-review.googlesource.com/c/go/+/479627 Run-TryBot: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Auto-Submit: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com> Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> TryBot-Bypass: Ian Lance Taylor <iant@golang.org>
101 lines
2.3 KiB
Go
101 lines
2.3 KiB
Go
// run
|
|
//go:build !nacl && !js && !wasip1 && !gccgo
|
|
|
|
// 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.
|
|
|
|
// ensure that panic(x) where x is a numeric type displays a readable number
|
|
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"log"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
)
|
|
|
|
const fn = `
|
|
package main
|
|
|
|
import "errors"
|
|
type S struct {
|
|
|
|
}
|
|
func (s S) String() string {
|
|
return "s-stringer"
|
|
}
|
|
func main() {
|
|
_ = errors.New
|
|
panic(%s(%s))
|
|
}
|
|
`
|
|
|
|
func main() {
|
|
tempDir, err := ioutil.TempDir("", "")
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
tmpFile := filepath.Join(tempDir, "tmp.go")
|
|
|
|
for _, tc := range []struct {
|
|
Type string
|
|
Input string
|
|
Expect string
|
|
}{
|
|
{"", "nil", "panic: panic called with nil argument"},
|
|
{"errors.New", `"test"`, "panic: test"},
|
|
{"S", "S{}", "panic: s-stringer"},
|
|
{"byte", "8", "panic: 8"},
|
|
{"rune", "8", "panic: 8"},
|
|
{"int", "8", "panic: 8"},
|
|
{"int8", "8", "panic: 8"},
|
|
{"int16", "8", "panic: 8"},
|
|
{"int32", "8", "panic: 8"},
|
|
{"int64", "8", "panic: 8"},
|
|
{"uint", "8", "panic: 8"},
|
|
{"uint8", "8", "panic: 8"},
|
|
{"uint16", "8", "panic: 8"},
|
|
{"uint32", "8", "panic: 8"},
|
|
{"uint64", "8", "panic: 8"},
|
|
{"uintptr", "8", "panic: 8"},
|
|
{"bool", "true", "panic: true"},
|
|
{"complex64", "8 + 16i", "panic: (+8.000000e+000+1.600000e+001i)"},
|
|
{"complex128", "8+16i", "panic: (+8.000000e+000+1.600000e+001i)"},
|
|
{"string", `"test"`, "panic: test"}} {
|
|
|
|
b := bytes.Buffer{}
|
|
fmt.Fprintf(&b, fn, tc.Type, tc.Input)
|
|
|
|
err = ioutil.WriteFile(tmpFile, b.Bytes(), 0644)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
cmd := exec.Command("go", "run", tmpFile)
|
|
var buf bytes.Buffer
|
|
cmd.Stdout = &buf
|
|
cmd.Stderr = &buf
|
|
cmd.Env = os.Environ()
|
|
cmd.Run() // ignore err as we expect a panic
|
|
|
|
out := buf.Bytes()
|
|
panicIdx := bytes.Index(out, []byte("panic: "))
|
|
if panicIdx == -1 {
|
|
log.Fatalf("expected a panic in output for %s, got: %s", tc.Type, out)
|
|
}
|
|
eolIdx := bytes.IndexByte(out[panicIdx:], '\n') + panicIdx
|
|
if panicIdx == -1 {
|
|
log.Fatalf("expected a newline in output for %s after the panic, got: %s", tc.Type, out)
|
|
}
|
|
out = out[0:eolIdx]
|
|
if string(out) != tc.Expect {
|
|
log.Fatalf("expected '%s' for panic(%s(%s)), got %s", tc.Expect, tc.Type, tc.Input, out)
|
|
}
|
|
}
|
|
}
|