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encoding/gob: skip TestLargeSlice on machines with small address space

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The encoding/gob.TestLargeSlice test needs too much virtual memory
to run reliably on machines with a small address space, for example
the plan9-arm builders where user processes only have 1 gigabyte.

Fixes #60284

Change-Id: Ied88630e5ec6685e14d2060ae316abca1619f9b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/496138
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: David du Colombier <0intro@gmail.com>
Run-TryBot: David du Colombier <0intro@gmail.com>
This commit is contained in:
miller 2023-05-18 11:25:48 +01:00 committed by Gopher Robot
parent 976a84b1ff
commit 873f76d27b
1 changed files with 13 additions and 4 deletions
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17
src/encoding/gob/codec_test.go
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@ -14,6 +14,7 @@ import (
"strings"
"testing"
"time"
"unsafe"
)
var doFuzzTests = flag.Bool("gob.fuzz", false, "run the fuzz tests, which are large and very slow")
@ -1566,7 +1567,9 @@ func testEncodeDecode(t *testing.T, in, out any) {
func TestLargeSlice(t *testing.T) {
t.Run("byte", func(t *testing.T) {
t.Parallel()
if unsafe.Sizeof(uintptr(0)) > 4 {
t.Parallel() // Only run in parallel in a large address space
}
s := make([]byte, 10<<21)
for i := range s {
s[i] = byte(i)
@ -1576,7 +1579,9 @@ func TestLargeSlice(t *testing.T) {
testEncodeDecode(t, st, rt)
})
t.Run("int8", func(t *testing.T) {
t.Parallel()
if unsafe.Sizeof(uintptr(0)) > 4 {
t.Parallel()
}
s := make([]int8, 10<<21)
for i := range s {
s[i] = int8(i)
@ -1586,7 +1591,9 @@ func TestLargeSlice(t *testing.T) {
testEncodeDecode(t, st, rt)
})
t.Run("struct", func(t *testing.T) {
t.Parallel()
if unsafe.Sizeof(uintptr(0)) > 4 {
t.Parallel()
}
s := make([]StringPair, 1<<21)
for i := range s {
s[i].A = string(rune(i))
@ -1597,7 +1604,9 @@ func TestLargeSlice(t *testing.T) {
testEncodeDecode(t, st, rt)
})
t.Run("string", func(t *testing.T) {
t.Parallel()
if unsafe.Sizeof(uintptr(0)) > 4 {
t.Parallel()
}
s := make([]string, 1<<21)
for i := range s {
s[i] = string(rune(i))