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Unified Diff: base/threading/simple_thread_unittest.cc

Issue 1647803004: Move base to DEPS (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: base/threading/simple_thread_unittest.cc
diff --git a/base/threading/simple_thread_unittest.cc b/base/threading/simple_thread_unittest.cc
deleted file mode 100644
index 7229d362f142ec082a76645992f5c1ae1385c116..0000000000000000000000000000000000000000
--- a/base/threading/simple_thread_unittest.cc
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright (c) 2012 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 "base/atomic_sequence_num.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/threading/simple_thread.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-
-namespace {
-
-class SetIntRunner : public DelegateSimpleThread::Delegate {
- public:
- SetIntRunner(int* ptr, int val) : ptr_(ptr), val_(val) { }
- ~SetIntRunner() override {}
-
- void Run() override { *ptr_ = val_; }
-
- private:
- int* ptr_;
- int val_;
-};
-
-class WaitEventRunner : public DelegateSimpleThread::Delegate {
- public:
- explicit WaitEventRunner(WaitableEvent* event) : event_(event) { }
- ~WaitEventRunner() override {}
-
- void Run() override {
- EXPECT_FALSE(event_->IsSignaled());
- event_->Signal();
- EXPECT_TRUE(event_->IsSignaled());
- }
- private:
- WaitableEvent* event_;
-};
-
-class SeqRunner : public DelegateSimpleThread::Delegate {
- public:
- explicit SeqRunner(AtomicSequenceNumber* seq) : seq_(seq) { }
- void Run() override { seq_->GetNext(); }
-
- private:
- AtomicSequenceNumber* seq_;
-};
-
-// We count up on a sequence number, firing on the event when we've hit our
-// expected amount, otherwise we wait on the event. This will ensure that we
-// have all threads outstanding until we hit our expected thread pool size.
-class VerifyPoolRunner : public DelegateSimpleThread::Delegate {
- public:
- VerifyPoolRunner(AtomicSequenceNumber* seq,
- int total, WaitableEvent* event)
- : seq_(seq), total_(total), event_(event) { }
-
- void Run() override {
- if (seq_->GetNext() == total_) {
- event_->Signal();
- } else {
- event_->Wait();
- }
- }
-
- private:
- AtomicSequenceNumber* seq_;
- int total_;
- WaitableEvent* event_;
-};
-
-} // namespace
-
-TEST(SimpleThreadTest, CreateAndJoin) {
- int stack_int = 0;
-
- SetIntRunner runner(&stack_int, 7);
- EXPECT_EQ(0, stack_int);
-
- DelegateSimpleThread thread(&runner, "int_setter");
- EXPECT_FALSE(thread.HasBeenStarted());
- EXPECT_FALSE(thread.HasBeenJoined());
- EXPECT_EQ(0, stack_int);
-
- thread.Start();
- EXPECT_TRUE(thread.HasBeenStarted());
- EXPECT_FALSE(thread.HasBeenJoined());
-
- thread.Join();
- EXPECT_TRUE(thread.HasBeenStarted());
- EXPECT_TRUE(thread.HasBeenJoined());
- EXPECT_EQ(7, stack_int);
-}
-
-TEST(SimpleThreadTest, WaitForEvent) {
- // Create a thread, and wait for it to signal us.
- WaitableEvent event(true, false);
-
- WaitEventRunner runner(&event);
- DelegateSimpleThread thread(&runner, "event_waiter");
-
- EXPECT_FALSE(event.IsSignaled());
- thread.Start();
- event.Wait();
- EXPECT_TRUE(event.IsSignaled());
- thread.Join();
-}
-
-TEST(SimpleThreadTest, NamedWithOptions) {
- WaitableEvent event(true, false);
-
- WaitEventRunner runner(&event);
- SimpleThread::Options options;
- DelegateSimpleThread thread(&runner, "event_waiter", options);
- EXPECT_EQ(thread.name_prefix(), "event_waiter");
- EXPECT_FALSE(event.IsSignaled());
-
- thread.Start();
- EXPECT_EQ(thread.name_prefix(), "event_waiter");
- EXPECT_EQ(thread.name(),
- std::string("event_waiter/") + IntToString(thread.tid()));
- event.Wait();
-
- EXPECT_TRUE(event.IsSignaled());
- thread.Join();
-
- // We keep the name and tid, even after the thread is gone.
- EXPECT_EQ(thread.name_prefix(), "event_waiter");
- EXPECT_EQ(thread.name(),
- std::string("event_waiter/") + IntToString(thread.tid()));
-}
-
-TEST(SimpleThreadTest, ThreadPool) {
- AtomicSequenceNumber seq;
- SeqRunner runner(&seq);
- DelegateSimpleThreadPool pool("seq_runner", 10);
-
- // Add work before we're running.
- pool.AddWork(&runner, 300);
-
- EXPECT_EQ(seq.GetNext(), 0);
- pool.Start();
-
- // Add work while we're running.
- pool.AddWork(&runner, 300);
-
- pool.JoinAll();
-
- EXPECT_EQ(seq.GetNext(), 601);
-
- // We can reuse our pool. Verify that all 10 threads can actually run in
- // parallel, so this test will only pass if there are actually 10 threads.
- AtomicSequenceNumber seq2;
- WaitableEvent event(true, false);
- // Changing 9 to 10, for example, would cause us JoinAll() to never return.
- VerifyPoolRunner verifier(&seq2, 9, &event);
- pool.Start();
-
- pool.AddWork(&verifier, 10);
-
- pool.JoinAll();
- EXPECT_EQ(seq2.GetNext(), 10);
-}
-
-} // namespace base
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