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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 19:19:13 +0000
commitccd992355df7192993c666236047820244914598 (patch)
treef00fea65147227b7743083c6148396f74cd66935 /test/fixedbugs/issue19658.go
parentInitial commit. (diff)
downloadgolang-1.21-ccd992355df7192993c666236047820244914598.tar.xz
golang-1.21-ccd992355df7192993c666236047820244914598.zip
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/fixedbugs/issue19658.go')
-rw-r--r--test/fixedbugs/issue19658.go100
1 files changed, 100 insertions, 0 deletions
diff --git a/test/fixedbugs/issue19658.go b/test/fixedbugs/issue19658.go
new file mode 100644
index 0000000..1e13573
--- /dev/null
+++ b/test/fixedbugs/issue19658.go
@@ -0,0 +1,100 @@
+// 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)
+ }
+ }
+}