| // Copyright 2017 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 "chrome/browser/chromeos/arc/process/arc_process.h" |
| |
| #include <assert.h> |
| |
| #include <list> |
| #include <sstream> |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace arc { |
| |
| namespace { |
| |
| // Tests that ArcProcess objects can be sorted by their priority (higher to |
| // lower). This is critical for the OOM handler to work correctly. |
| TEST(ArcProcess, TestSorting) { |
| constexpr int64_t kNow = 1234567890; |
| |
| std::list<ArcProcess> processes; // use list<> for emplace_front. |
| processes.emplace_back(0, 0, "process 0", mojom::ProcessState::PERSISTENT, |
| false /* is_focused */, kNow + 1); |
| processes.emplace_front(1, 1, "process 1", mojom::ProcessState::PERSISTENT, |
| false, kNow); |
| processes.emplace_back(2, 2, "process 2", mojom::ProcessState::LAST_ACTIVITY, |
| false, kNow); |
| processes.emplace_front(3, 3, "process 3", mojom::ProcessState::LAST_ACTIVITY, |
| false, kNow + 1); |
| processes.emplace_back(4, 4, "process 4", mojom::ProcessState::CACHED_EMPTY, |
| false, kNow + 1); |
| processes.emplace_front(5, 5, "process 5", mojom::ProcessState::CACHED_EMPTY, |
| false, kNow); |
| processes.sort(); |
| |
| static_assert( |
| mojom::ProcessState::PERSISTENT < mojom::ProcessState::LAST_ACTIVITY, |
| "unexpected enum values"); |
| static_assert( |
| mojom::ProcessState::LAST_ACTIVITY < mojom::ProcessState::CACHED_EMPTY, |
| "unexpected enum values"); |
| |
| std::list<ArcProcess>::const_iterator it = processes.begin(); |
| // 0 should have higher priority since its last_activity_time is more recent. |
| EXPECT_EQ(0, it->pid()); |
| ++it; |
| EXPECT_EQ(1, it->pid()); |
| ++it; |
| // Same, 3 should have higher priority. |
| EXPECT_EQ(3, it->pid()); |
| ++it; |
| EXPECT_EQ(2, it->pid()); |
| ++it; |
| // Same, 4 should have higher priority. |
| EXPECT_EQ(4, it->pid()); |
| ++it; |
| EXPECT_EQ(5, it->pid()); |
| } |
| |
| TEST(ArcProcess, TestIsImportant) { |
| constexpr bool kIsNotFocused = false; |
| |
| // Processes up to IMPORTANT_FOREGROUND are considered important. |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::PERSISTENT, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::PERSISTENT_UI, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::TOP, true, 0) |
| .IsImportant()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::TOP, false, 0) |
| .IsImportant()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::BOUND_FOREGROUND_SERVICE, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::FOREGROUND_SERVICE, kIsNotFocused, |
| 0) |
| .IsImportant()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::TOP_SLEEPING, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::IMPORTANT_FOREGROUND, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| |
| // Others are not important. |
| EXPECT_FALSE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::IMPORTANT_BACKGROUND, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE( |
| ArcProcess(0, 0, "process", mojom::ProcessState::BACKUP, kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::HEAVY_WEIGHT, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::SERVICE, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::RECEIVER, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE( |
| ArcProcess(0, 0, "process", mojom::ProcessState::HOME, kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::LAST_ACTIVITY, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::CACHED_ACTIVITY, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::CACHED_ACTIVITY_CLIENT, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::CACHED_EMPTY, |
| kIsNotFocused, 0) |
| .IsImportant()); |
| } |
| |
| TEST(ArcProcess, TestIsKernelKillable) { |
| constexpr bool kIsNotFocused = false; |
| |
| // Only PERSISITENT* processes are protected from the kernel OOM killer. |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::PERSISTENT, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_FALSE(ArcProcess(0, 0, "process", mojom::ProcessState::PERSISTENT_UI, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| |
| // Both TOP+focused and TOP apps are still kernel-killable. |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::TOP, true, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::TOP, false, 0) |
| .IsKernelKillable()); |
| |
| // Others are kernel-killable. |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::BOUND_FOREGROUND_SERVICE, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::FOREGROUND_SERVICE, kIsNotFocused, |
| 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::TOP_SLEEPING, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::IMPORTANT_FOREGROUND, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::IMPORTANT_BACKGROUND, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE( |
| ArcProcess(0, 0, "process", mojom::ProcessState::BACKUP, kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::HEAVY_WEIGHT, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::SERVICE, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::RECEIVER, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE( |
| ArcProcess(0, 0, "process", mojom::ProcessState::HOME, kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::LAST_ACTIVITY, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::CACHED_ACTIVITY, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", |
| mojom::ProcessState::CACHED_ACTIVITY_CLIENT, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| EXPECT_TRUE(ArcProcess(0, 0, "process", mojom::ProcessState::CACHED_EMPTY, |
| kIsNotFocused, 0) |
| .IsKernelKillable()); |
| } |
| |
| // Tests operator<<() does not crash and returns non-empty result, at least. |
| TEST(ArcProcess, TestStringification) { |
| std::stringstream s; |
| s << ArcProcess(0, 0, "p", mojom::ProcessState::PERSISTENT, false, 0); |
| EXPECT_FALSE(s.str().empty()); |
| } |
| |
| } // namespace |
| |
| } // namespace arc |
