summaryrefslogtreecommitdiffhomepage
path: root/pkg/sync/tmutex_test.go
diff options
context:
space:
mode:
Diffstat (limited to 'pkg/sync/tmutex_test.go')
-rw-r--r--pkg/sync/tmutex_test.go71
1 files changed, 0 insertions, 71 deletions
diff --git a/pkg/sync/tmutex_test.go b/pkg/sync/tmutex_test.go
deleted file mode 100644
index 0838248b4..000000000
--- a/pkg/sync/tmutex_test.go
+++ /dev/null
@@ -1,71 +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 sync
-
-import (
- "sync"
- "testing"
- "unsafe"
-)
-
-// TestStructSize verifies that syncMutex's size hasn't drifted from the
-// standard library's version.
-//
-// The correctness of this package relies on these remaining in sync.
-func TestStructSize(t *testing.T) {
- const (
- got = unsafe.Sizeof(syncMutex{})
- want = unsafe.Sizeof(sync.Mutex{})
- )
- if got != want {
- t.Errorf("got sizeof(syncMutex) = %d, want = sizeof(sync.Mutex) = %d", got, want)
- }
-}
-
-// TestFieldValues verifies that the semantics of syncMutex.state from the
-// standard library's implementation.
-//
-// The correctness of this package relies on these remaining in sync.
-func TestFieldValues(t *testing.T) {
- var m Mutex
- m.Lock()
- if got := *m.state(); got != mutexLocked {
- t.Errorf("got locked sync.Mutex.state = %d, want = %d", got, mutexLocked)
- }
- m.Unlock()
- if got := *m.state(); got != mutexUnlocked {
- t.Errorf("got unlocked sync.Mutex.state = %d, want = %d", got, mutexUnlocked)
- }
-}
-
-func TestDoubleTryLock(t *testing.T) {
- var m Mutex
- if !m.TryLock() {
- t.Fatal("failed to aquire lock")
- }
- if m.TryLock() {
- t.Fatal("unexpectedly succeeded in aquiring locked mutex")
- }
-}
-
-func TestTryLockAfterLock(t *testing.T) {
- var m Mutex
- m.Lock()
- if m.TryLock() {
- t.Fatal("unexpectedly succeeded in aquiring locked mutex")
- }
-}
-
-func TestTryLockUnlock(t *testing.T) {
- var m Mutex
- if !m.TryLock() {
- t.Fatal("failed to aquire lock")
- }
- m.Unlock()
- if !m.TryLock() {
- t.Fatal("failed to aquire lock after unlock")
- }
-}