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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/cache_storage/cache_storage_scheduler.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/scoped_feature_list.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace cache_storage_scheduler_unittest {
class TestTask {
public:
TestTask(CacheStorageScheduler* scheduler)
: scheduler_(scheduler),
id_(scheduler_->CreateId()),
callback_count_(0) {}
void Run() {
callback_count_++;
run_loop_.Quit();
}
void Done() { scheduler_->CompleteOperationAndRunNext(id_); }
int callback_count() const { return callback_count_; }
CacheStorageSchedulerId id() const { return id_; }
base::RunLoop& run_loop() { return run_loop_; }
protected:
raw_ptr<CacheStorageScheduler> scheduler_;
const CacheStorageSchedulerId id_;
base::RunLoop run_loop_;
int callback_count_;
};
class CacheStorageSchedulerTest : public testing::Test {
protected:
CacheStorageSchedulerTest()
: task_environment_(BrowserTaskEnvironment::IO_MAINLOOP),
task1_(&scheduler_),
task2_(&scheduler_),
task3_(&scheduler_) {}
BrowserTaskEnvironment task_environment_;
CacheStorageScheduler scheduler_{
CacheStorageSchedulerClient::kStorage,
base::SingleThreadTaskRunner::GetCurrentDefault()};
TestTask task1_;
TestTask task2_;
TestTask task3_;
};
TEST_F(CacheStorageSchedulerTest, ScheduleOne) {
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
// It's expected that the task will be executed synchronously.
EXPECT_TRUE(task1_.run_loop().AnyQuitCalled());
}
TEST_F(CacheStorageSchedulerTest, ScheduledOperations) {
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
EXPECT_TRUE(scheduler_.ScheduledOperations());
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_TRUE(scheduler_.ScheduledOperations());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
task1_.Done();
EXPECT_FALSE(scheduler_.ScheduledOperations());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
}
TEST_F(CacheStorageSchedulerTest, ScheduleTwoExclusive) {
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "3"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
// Should only run the first exclusive op.
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
// Should run the second exclusive op after the first completes.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
}
TEST_F(CacheStorageSchedulerTest, ScheduleTwoShared) {
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "3"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
// Should run both shared ops in paralle.
task1_.run_loop().Run();
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
// Completing the first op should trigger a check for new ops
// which will not be present here.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
// Completing the second op should result in the scheduler
// becoming idle.
task2_.Done();
EXPECT_FALSE(scheduler_.ScheduledOperations());
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
}
TEST_F(CacheStorageSchedulerTest, ScheduleOneExclusiveOneShared) {
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "3"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
// Should only run the first exclusive op.
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
// Should run the second shared op after the first is completed.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
task2_.Done();
EXPECT_FALSE(scheduler_.ScheduledOperations());
}
TEST_F(CacheStorageSchedulerTest, ScheduleOneSharedOneExclusive) {
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "3"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
// Should only run the first shared op.
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
// Should run the second exclusive op after the first completes.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
task2_.Done();
EXPECT_FALSE(scheduler_.ScheduledOperations());
}
TEST_F(CacheStorageSchedulerTest, ScheduleTwoSharedOneExclusive) {
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "3"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
scheduler_.ScheduleOperation(
task3_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task3_)));
// Should run the two shared ops in parallel.
task1_.run_loop().Run();
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(0, task3_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
// Completing the first shared op should not allow the exclusive op
// to run yet.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(0, task3_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
// The third exclusive op should run after both the preceding shared ops
// complete.
task2_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task3_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(1, task3_.callback_count());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
task3_.Done();
EXPECT_FALSE(scheduler_.ScheduledOperations());
}
TEST_F(CacheStorageSchedulerTest, ScheduleOneExclusiveTwoShared) {
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "3"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
scheduler_.ScheduleOperation(
task3_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task3_)));
// Should only run the first exclusive op.
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_EQ(0, task3_.callback_count());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
// Should run both the shared ops in parallel after the first exclusive
// op is completed.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task2_.run_loop().Run();
task3_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(1, task3_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
task2_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(1, task3_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
task3_.Done();
EXPECT_FALSE(scheduler_.ScheduledOperations());
}
TEST_F(CacheStorageSchedulerTest, ScheduleOneSharedOneExclusiveOneShared) {
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "3"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
scheduler_.ScheduleOperation(
task3_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task3_)));
// Should only run the first shared op.
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_EQ(0, task3_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
// Should run the exclusive op after the first op is completed.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(0, task3_.callback_count());
EXPECT_TRUE(scheduler_.IsRunningExclusiveOperation());
// Should run the last shared op after the preceding exclusive op
// is completed.
task2_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task3_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(1, task3_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
task3_.Done();
EXPECT_FALSE(scheduler_.ScheduledOperations());
}
TEST_F(CacheStorageSchedulerTest, ScheduleTwoSharedNotParallel) {
// Disable parallelism
base::test::ScopedFeatureList scoped_feature_list;
scoped_feature_list.InitAndEnableFeatureWithParameters(
kCacheStorageParallelOps, {{"max_shared_ops", "1"}});
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kShared,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
// Should only run one shared op since the max shared is set to 1.
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
// Should run the next shared op after the first completes.
task1_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_FALSE(scheduler_.IsRunningExclusiveOperation());
}
TEST_F(CacheStorageSchedulerTest, ScheduleByPriorityTwoNormalOneHigh) {
scheduler_.ScheduleOperation(
task1_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task1_)));
scheduler_.ScheduleOperation(
task2_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kNormal,
base::BindOnce(&TestTask::Run, base::Unretained(&task2_)));
scheduler_.ScheduleOperation(
task3_.id(), CacheStorageSchedulerMode::kExclusive,
CacheStorageSchedulerOp::kTest, CacheStorageSchedulerPriority::kHigh,
base::BindOnce(&TestTask::Run, base::Unretained(&task3_)));
// Should run the first normal priority op because the queue was empty
// when it was added.
task1_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_EQ(0, task3_.callback_count());
// Should run the high priority op next.
task1_.Done();
task3_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(0, task2_.callback_count());
EXPECT_EQ(1, task3_.callback_count());
// Should run the final normal priority op after the high priority op
// completes.
task3_.Done();
EXPECT_TRUE(scheduler_.ScheduledOperations());
task2_.run_loop().Run();
EXPECT_EQ(1, task1_.callback_count());
EXPECT_EQ(1, task2_.callback_count());
EXPECT_EQ(1, task3_.callback_count());
}
// Regression test for crbug.com/370069678 --- not crashing under ASAN indicates
// success.
TEST_F(CacheStorageSchedulerTest, TaskDeletesScheduler) {
auto* scheduler = new CacheStorageScheduler(
CacheStorageSchedulerClient::kStorage,
base::SingleThreadTaskRunner::GetCurrentDefault());
scheduler->ScheduleOperation(
1, CacheStorageSchedulerMode::kExclusive, CacheStorageSchedulerOp::kTest,
CacheStorageSchedulerPriority::kNormal,
base::BindOnce([](CacheStorageScheduler* scheduler) { delete scheduler; },
scheduler));
}
} // namespace cache_storage_scheduler_unittest
} // namespace content
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