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add regression test

This commit is contained in:
Zeke Lu 2022-09-11 02:02:52 +08:00
parent 29d0bbbdf5
commit d1d2f88c69
1 changed files with 29 additions and 0 deletions
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29
src/debug/buildinfo/buildinfo_test.go
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@ -18,6 +18,7 @@ import (
"runtime"
"strings"
"testing"
"time"
)
var flagAll = flag.Bool("all", false, "test all supported GOOS/GOARCH platforms, instead of only the current platform")
@ -245,3 +246,31 @@ func TestReadFile(t *testing.T) {
})
}
}
// TestReadFindBlob is a regression test for golang.org/issue/54968.
//
// The cause of issue 54968 is when the first buildInfoMagic is invalid, it
// enters an infinite loop.
func TestReadFindBlob(t *testing.T) {
t.Parallel()
r := bytes.NewReader([]byte{0x4d, 0x5a, 0x64, 0x65, 0x61, 0x64, 0x74, 0x54, 0x59, 0x50, 0x45, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0x3a, 0x60, 0x5d, 0x60, 0x0, 0x0, 0x0, 0x0, 0x5c, 0x3f, 0x0, 0x40, 0x0, 0x0, 0x6c, 0x79, 0x4d, 0x44, 0x28, 0x20, 0x69, 0x6c, 0x6c, 0x4e, 0x6f, 0x53, 0x69, 0x6e, 0x67, 0x5b, 0x65, 0x6c, 0x44, 0x41, 0x28, 0x52, 0x6b, 0x6c, 0x4e, 0x6f, 0x53, 0x69, 0x64, 0x9, 0x0, 0x0, 0x0, 0x60, 0x0, 0x0, 0x0, 0x28, 0x6b, 0x6c, 0x4e, 0x6f, 0xef, 0x53, 0x69, 0x64, 0x0, 0x0, 0x6c, 0xed, 0x3c, 0xfa, 0x0, 0x2, 0x20, 0x20, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x5b, 0xf6, 0x0, 0xd3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x6c, 0x69, 0x73, 0x74, 0x20, 0x7b, 0xa, 0x7d, 0xa, 0x6c, 0x69, 0x73, 0xff, 0x20, 0x7b, 0xa, 0xfe, 0xff, 0x7f, 0xff, 0x1, 0xe5, 0x20, 0x65, 0xff, 0x52, 0xff, 0x72, 0xa, 0x20, 0x3d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x55, 0x2a, 0x5b, 0x5d, 0x69, 0x6e, 0x74, 0x33, 0x32, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0xa, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x78, 0x2f, 0x34, 0x54, 0x0, 0xa, 0x0, 0x20, 0x49, 0x0, 0x0, 0x23, 0x0, 0x20, 0x0, 0x0, 0x0, 0x2a, 0x5b, 0x5d, 0x2a, 0x66, 0xff, 0x20, 0x47, 0x6f, 0x20, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x69, 0x6e, 0x66, 0x3a, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x69, 0x73, 0x2b, 0x20, 0x7b, 0xa, 0xfe, 0xff, 0xff, 0x20, 0xff, 0x20, 0xff, 0x65, 0xff, 0x52, 0xff, 0x72, 0xa, 0x20, 0x3d, 0x0, 0x0, 0x2a, 0x5b, 0x5d, 0x2a, 0x66, 0x0, 0x30, 0x5c, 0x30, 0x30, 0x30, 0x5c, 0x30, 0x30, 0x31, 0x5c, 0x30, 0x74, 0x65, 0x78, 0x74, 0x30, 0x30, 0x6c, 0x69, 0x73, 0x74, 0x20, 0x7b, 0x5c, 0x6e, 0x7d, 0x5c, 0x6e, 0x6c, 0x35, 0x35, 0x32, 0x32, 0x33, 0x30, 0x32, 0x37, 0x5c, 0x33, 0x37, 0x37, 0x20, 0x22, 0x2f, 0x22, 0xa, 0x20, 0x20, 0x0})
c := make(chan error)
go func() {
_, err := buildinfo.Read(r)
c <- err
}()
select {
case err := <-c:
wantErr := "not a Go executable"
if err == nil {
t.Errorf("got error nil; want error containing %q", wantErr)
} else if errMsg := err.Error(); !strings.Contains(errMsg, wantErr) {
t.Errorf("got error %q; want error containing %q", errMsg, wantErr)
}
case <-time.After(time.Second):
t.Fatal("test timed out (endless loop in readRawBuildInfo?)")
}
}