diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
commit | ccd992355df7192993c666236047820244914598 (patch) | |
tree | f00fea65147227b7743083c6148396f74cd66935 /src/runtime/panicnil_test.go | |
parent | Initial commit. (diff) | |
download | golang-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 'src/runtime/panicnil_test.go')
-rw-r--r-- | src/runtime/panicnil_test.go | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/runtime/panicnil_test.go b/src/runtime/panicnil_test.go new file mode 100644 index 0000000..7ed98e9 --- /dev/null +++ b/src/runtime/panicnil_test.go @@ -0,0 +1,54 @@ +// Copyright 2023 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 runtime_test + +import ( + "reflect" + "runtime" + "runtime/metrics" + "testing" +) + +func TestPanicNil(t *testing.T) { + t.Run("default", func(t *testing.T) { + checkPanicNil(t, new(runtime.PanicNilError)) + }) + t.Run("GODEBUG=panicnil=0", func(t *testing.T) { + t.Setenv("GODEBUG", "panicnil=0") + checkPanicNil(t, new(runtime.PanicNilError)) + }) + t.Run("GODEBUG=panicnil=1", func(t *testing.T) { + t.Setenv("GODEBUG", "panicnil=1") + checkPanicNil(t, nil) + }) +} + +func checkPanicNil(t *testing.T, want any) { + name := "/godebug/non-default-behavior/panicnil:events" + s := []metrics.Sample{{Name: name}} + metrics.Read(s) + v1 := s[0].Value.Uint64() + + defer func() { + e := recover() + if reflect.TypeOf(e) != reflect.TypeOf(want) { + println(e, want) + t.Errorf("recover() = %v, want %v", e, want) + panic(e) + } + metrics.Read(s) + v2 := s[0].Value.Uint64() + if want == nil { + if v2 != v1+1 { + t.Errorf("recover() with panicnil=1 did not increment metric %s", name) + } + } else { + if v2 != v1 { + t.Errorf("recover() with panicnil=0 incremented metric %s: %d -> %d", name, v1, v2) + } + } + }() + panic(nil) +} |