diff options
Diffstat (limited to 'src/runtime/hash_test.go')
| -rw-r--r-- | src/runtime/hash_test.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/runtime/hash_test.go b/src/runtime/hash_test.go index 77f916797f..36207e7ed0 100644 --- a/src/runtime/hash_test.go +++ b/src/runtime/hash_test.go @@ -5,10 +5,13 @@ package runtime_test import ( + "encoding/binary" "fmt" "internal/race" + "internal/testenv" "math" "math/rand" + "os" . "runtime" "slices" "strings" @@ -625,6 +628,29 @@ func TestSmhasherSeed(t *testing.T) { h.check(t) } +func TestIssue66841(t *testing.T) { + testenv.MustHaveExec(t) + if *UseAeshash && os.Getenv("TEST_ISSUE_66841") == "" { + // We want to test the backup hash, so if we're running on a machine + // that uses aeshash, exec ourselves while turning aes off. + cmd := testenv.CleanCmdEnv(testenv.Command(t, os.Args[0], "-test.run=^TestIssue66841$")) + cmd.Env = append(cmd.Env, "GODEBUG=cpu.aes=off", "TEST_ISSUE_66841=1") + out, err := cmd.CombinedOutput() + if err != nil { + t.Errorf("%s", string(out)) + } + // Fall through. Might as well run this test when aeshash is on also. + } + h := newHashSet() + var b [16]byte + binary.LittleEndian.PutUint64(b[:8], 0xe7037ed1a0b428db) // runtime.m2 + for i := 0; i < 1000; i++ { + binary.LittleEndian.PutUint64(b[8:], uint64(i)) + h.addB(b[:]) + } + h.check(t) +} + // size of the hash output (32 or 64 bits) const hashSize = 32 + int(^uintptr(0)>>63<<5) |