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Diffstat (limited to 'pkg/syncutil/seqcount_test.go')
-rw-r--r--pkg/syncutil/seqcount_test.go153
1 files changed, 0 insertions, 153 deletions
diff --git a/pkg/syncutil/seqcount_test.go b/pkg/syncutil/seqcount_test.go
deleted file mode 100644
index 14d6aedea..000000000
--- a/pkg/syncutil/seqcount_test.go
+++ /dev/null
@@ -1,153 +0,0 @@
-// Copyright 2019 The gVisor Authors.
-//
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package syncutil
-
-import (
- "reflect"
- "testing"
- "time"
-)
-
-func TestSeqCountWriteUncontended(t *testing.T) {
- var seq SeqCount
- seq.BeginWrite()
- seq.EndWrite()
-}
-
-func TestSeqCountReadUncontended(t *testing.T) {
- var seq SeqCount
- epoch := seq.BeginRead()
- if !seq.ReadOk(epoch) {
- t.Errorf("ReadOk: got false, wanted true")
- }
-}
-
-func TestSeqCountBeginReadAfterWrite(t *testing.T) {
- var seq SeqCount
- var data int32
- const want = 1
- seq.BeginWrite()
- data = want
- seq.EndWrite()
- epoch := seq.BeginRead()
- if data != want {
- t.Errorf("Reader: got %v, wanted %v", data, want)
- }
- if !seq.ReadOk(epoch) {
- t.Errorf("ReadOk: got false, wanted true")
- }
-}
-
-func TestSeqCountBeginReadDuringWrite(t *testing.T) {
- var seq SeqCount
- var data int
- const want = 1
- seq.BeginWrite()
- go func() {
- time.Sleep(time.Second)
- data = want
- seq.EndWrite()
- }()
- epoch := seq.BeginRead()
- if data != want {
- t.Errorf("Reader: got %v, wanted %v", data, want)
- }
- if !seq.ReadOk(epoch) {
- t.Errorf("ReadOk: got false, wanted true")
- }
-}
-
-func TestSeqCountReadOkAfterWrite(t *testing.T) {
- var seq SeqCount
- epoch := seq.BeginRead()
- seq.BeginWrite()
- seq.EndWrite()
- if seq.ReadOk(epoch) {
- t.Errorf("ReadOk: got true, wanted false")
- }
-}
-
-func TestSeqCountReadOkDuringWrite(t *testing.T) {
- var seq SeqCount
- epoch := seq.BeginRead()
- seq.BeginWrite()
- if seq.ReadOk(epoch) {
- t.Errorf("ReadOk: got true, wanted false")
- }
- seq.EndWrite()
-}
-
-func BenchmarkSeqCountWriteUncontended(b *testing.B) {
- var seq SeqCount
- for i := 0; i < b.N; i++ {
- seq.BeginWrite()
- seq.EndWrite()
- }
-}
-
-func BenchmarkSeqCountReadUncontended(b *testing.B) {
- var seq SeqCount
- b.RunParallel(func(pb *testing.PB) {
- for pb.Next() {
- epoch := seq.BeginRead()
- if !seq.ReadOk(epoch) {
- b.Fatalf("ReadOk: got false, wanted true")
- }
- }
- })
-}
-
-func TestPointersInType(t *testing.T) {
- for _, test := range []struct {
- name string // used for both test and value name
- val interface{}
- ptrs []string
- }{
- {
- name: "EmptyStruct",
- val: struct{}{},
- },
- {
- name: "Int",
- val: int(0),
- },
- {
- name: "MixedStruct",
- val: struct {
- b bool
- I int
- ExportedPtr *struct{}
- unexportedPtr *struct{}
- arr [2]int
- ptrArr [2]*int
- nestedStruct struct {
- nestedNonptr int
- nestedPtr *int
- }
- structArr [1]struct {
- nonptr int
- ptr *int
- }
- }{},
- ptrs: []string{
- "MixedStruct.ExportedPtr",
- "MixedStruct.unexportedPtr",
- "MixedStruct.ptrArr[]",
- "MixedStruct.nestedStruct.nestedPtr",
- "MixedStruct.structArr[].ptr",
- },
- },
- } {
- t.Run(test.name, func(t *testing.T) {
- typ := reflect.TypeOf(test.val)
- ptrs := PointersInType(typ, test.name)
- t.Logf("Found pointers: %v", ptrs)
- if (len(ptrs) != 0 || len(test.ptrs) != 0) && !reflect.DeepEqual(ptrs, test.ptrs) {
- t.Errorf("Got %v, wanted %v", ptrs, test.ptrs)
- }
- })
- }
-}