1 files changed, 97 insertions, 0 deletions
diff --git a/security/sandbox/chromium/sandbox/win/src/threadpool_unittest.cc b/security/sandbox/chromium/sandbox/win/src/threadpool_unittest.cc
new file mode 100644
index 0000000000..3f951b761b
--- /dev/null
+++ b/security/sandbox/chromium/sandbox/win/src/threadpool_unittest.cc
@@ -0,0 +1,97 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "sandbox/win/src/win2k_threadpool.h"
+
+#include <stdint.h>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+void __stdcall EmptyCallBack(void*, unsigned char) {}
+
+void __stdcall TestCallBack(void* context, unsigned char) {
+  HANDLE event = reinterpret_cast<HANDLE>(context);
+  ::SetEvent(event);
+}
+
+namespace sandbox {
+
+// Test that register and unregister work, part 1.
+TEST(IPCTest, ThreadPoolRegisterTest1) {
+  Win2kThreadPool thread_pool;
+
+  EXPECT_EQ(0u, thread_pool.OutstandingWaits());
+
+  HANDLE event1 = ::CreateEventW(nullptr, false, false, nullptr);
+  HANDLE event2 = ::CreateEventW(nullptr, false, false, nullptr);
+
+  uint32_t context = 0;
+  EXPECT_FALSE(thread_pool.RegisterWait(0, event1, EmptyCallBack, &context));
+  EXPECT_EQ(0u, thread_pool.OutstandingWaits());
+
+  EXPECT_TRUE(thread_pool.RegisterWait(this, event1, EmptyCallBack, &context));
+  EXPECT_EQ(1u, thread_pool.OutstandingWaits());
+  EXPECT_TRUE(thread_pool.RegisterWait(this, event2, EmptyCallBack, &context));
+  EXPECT_EQ(2u, thread_pool.OutstandingWaits());
+
+  EXPECT_TRUE(thread_pool.UnRegisterWaits(this));
+  EXPECT_EQ(0u, thread_pool.OutstandingWaits());
+
+  EXPECT_TRUE(::CloseHandle(event1));
+  EXPECT_TRUE(::CloseHandle(event2));
+}
+
+// Test that register and unregister work, part 2.
+TEST(IPCTest, ThreadPoolRegisterTest2) {
+  Win2kThreadPool thread_pool;
+
+  HANDLE event1 = ::CreateEventW(nullptr, false, false, nullptr);
+  HANDLE event2 = ::CreateEventW(nullptr, false, false, nullptr);
+
+  uint32_t context = 0;
+  uint32_t c1 = 0;
+  uint32_t c2 = 0;
+
+  EXPECT_TRUE(thread_pool.RegisterWait(&c1, event1, EmptyCallBack, &context));
+  EXPECT_EQ(1u, thread_pool.OutstandingWaits());
+  EXPECT_TRUE(thread_pool.RegisterWait(&c2, event2, EmptyCallBack, &context));
+  EXPECT_EQ(2u, thread_pool.OutstandingWaits());
+
+  EXPECT_TRUE(thread_pool.UnRegisterWaits(&c2));
+  EXPECT_EQ(1u, thread_pool.OutstandingWaits());
+  EXPECT_TRUE(thread_pool.UnRegisterWaits(&c2));
+  EXPECT_EQ(1u, thread_pool.OutstandingWaits());
+
+  EXPECT_TRUE(thread_pool.UnRegisterWaits(&c1));
+  EXPECT_EQ(0u, thread_pool.OutstandingWaits());
+
+  EXPECT_TRUE(::CloseHandle(event1));
+  EXPECT_TRUE(::CloseHandle(event2));
+}
+
+// Test that the thread pool has at least a thread that services an event.
+// Test that when the event is un-registered is no longer serviced.
+TEST(IPCTest, ThreadPoolSignalAndWaitTest) {
+  Win2kThreadPool thread_pool;
+
+  // The events are auto reset and start not signaled.
+  HANDLE event1 = ::CreateEventW(nullptr, false, false, nullptr);
+  HANDLE event2 = ::CreateEventW(nullptr, false, false, nullptr);
+
+  EXPECT_TRUE(thread_pool.RegisterWait(this, event1, TestCallBack, event2));
+
+  EXPECT_EQ(WAIT_OBJECT_0, ::SignalObjectAndWait(event1, event2, 5000, false));
+  EXPECT_EQ(WAIT_OBJECT_0, ::SignalObjectAndWait(event1, event2, 5000, false));
+
+  EXPECT_TRUE(thread_pool.UnRegisterWaits(this));
+  EXPECT_EQ(0u, thread_pool.OutstandingWaits());
+
+  EXPECT_EQ(static_cast<DWORD>(WAIT_TIMEOUT),
+            ::SignalObjectAndWait(event1, event2, 1000, false));
+
+  EXPECT_TRUE(::CloseHandle(event1));
+  EXPECT_TRUE(::CloseHandle(event2));
+}
+
+}  // namespace sandbox