Move unit tests to test/unittests.

src/heap/gc-idle-time-handler-unittest.cc

-// Copyright 2014 the V8 project 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 <limits>
-
-#include "src/heap/gc-idle-time-handler.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace v8 {
-namespace internal {
-
-namespace {
-
-class GCIdleTimeHandlerTest : public ::testing::Test {
- public:
-  GCIdleTimeHandlerTest() {}
-  virtual ~GCIdleTimeHandlerTest() {}
-
-  GCIdleTimeHandler* handler() { return &handler_; }
-
-  GCIdleTimeHandler::HeapState DefaultHeapState() {
-    GCIdleTimeHandler::HeapState result;
-    result.contexts_disposed = 0;
-    result.size_of_objects = kSizeOfObjects;
-    result.incremental_marking_stopped = false;
-    result.can_start_incremental_marking = true;
-    result.sweeping_in_progress = false;
-    result.mark_compact_speed_in_bytes_per_ms = kMarkCompactSpeed;
-    result.incremental_marking_speed_in_bytes_per_ms = kMarkingSpeed;
-    result.scavenge_speed_in_bytes_per_ms = kScavengeSpeed;
-    result.available_new_space_memory = kNewSpaceCapacity;
-    result.new_space_capacity = kNewSpaceCapacity;
-    result.new_space_allocation_throughput_in_bytes_per_ms =
-        kNewSpaceAllocationThroughput;
-    return result;
-  }
-
-  static const size_t kSizeOfObjects = 100 * MB;
-  static const size_t kMarkCompactSpeed = 200 * KB;
-  static const size_t kMarkingSpeed = 200 * KB;
-  static const size_t kScavengeSpeed = 100 * KB;
-  static const size_t kNewSpaceCapacity = 1 * MB;
-  static const size_t kNewSpaceAllocationThroughput = 10 * KB;
-
- private:
-  GCIdleTimeHandler handler_;
-};
-
-}  // namespace
-
-
-TEST(GCIdleTimeHandler, EstimateMarkingStepSizeInitial) {
-  size_t step_size = GCIdleTimeHandler::EstimateMarkingStepSize(1, 0);
-  EXPECT_EQ(
-      static_cast<size_t>(GCIdleTimeHandler::kInitialConservativeMarkingSpeed *
-                          GCIdleTimeHandler::kConservativeTimeRatio),
-      step_size);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateMarkingStepSizeNonZero) {
-  size_t marking_speed_in_bytes_per_millisecond = 100;
-  size_t step_size = GCIdleTimeHandler::EstimateMarkingStepSize(
-      1, marking_speed_in_bytes_per_millisecond);
-  EXPECT_EQ(static_cast<size_t>(marking_speed_in_bytes_per_millisecond *
-                                GCIdleTimeHandler::kConservativeTimeRatio),
-            step_size);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateMarkingStepSizeOverflow1) {
-  size_t step_size = GCIdleTimeHandler::EstimateMarkingStepSize(
-      10, std::numeric_limits<size_t>::max());
-  EXPECT_EQ(static_cast<size_t>(GCIdleTimeHandler::kMaximumMarkingStepSize),
-            step_size);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateMarkingStepSizeOverflow2) {
-  size_t step_size = GCIdleTimeHandler::EstimateMarkingStepSize(
-      std::numeric_limits<size_t>::max(), 10);
-  EXPECT_EQ(static_cast<size_t>(GCIdleTimeHandler::kMaximumMarkingStepSize),
-            step_size);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateMarkCompactTimeInitial) {
-  size_t size = 100 * MB;
-  size_t time = GCIdleTimeHandler::EstimateMarkCompactTime(size, 0);
-  EXPECT_EQ(size / GCIdleTimeHandler::kInitialConservativeMarkCompactSpeed,
-            time);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateMarkCompactTimeNonZero) {
-  size_t size = 100 * MB;
-  size_t speed = 1 * MB;
-  size_t time = GCIdleTimeHandler::EstimateMarkCompactTime(size, speed);
-  EXPECT_EQ(size / speed, time);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateMarkCompactTimeMax) {
-  size_t size = std::numeric_limits<size_t>::max();
-  size_t speed = 1;
-  size_t time = GCIdleTimeHandler::EstimateMarkCompactTime(size, speed);
-  EXPECT_EQ(GCIdleTimeHandler::kMaxMarkCompactTimeInMs, time);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateScavengeTimeInitial) {
-  size_t size = 1 * MB;
-  size_t time = GCIdleTimeHandler::EstimateScavengeTime(size, 0);
-  EXPECT_EQ(size / GCIdleTimeHandler::kInitialConservativeScavengeSpeed, time);
-}
-
-
-TEST(GCIdleTimeHandler, EstimateScavengeTimeNonZero) {
-  size_t size = 1 * MB;
-  size_t speed = 1 * MB;
-  size_t time = GCIdleTimeHandler::EstimateScavengeTime(size, speed);
-  EXPECT_EQ(size / speed, time);
-}
-
-
-TEST(GCIdleTimeHandler, ScavangeMayHappenSoonInitial) {
-  size_t available = 100 * KB;
-  EXPECT_FALSE(GCIdleTimeHandler::ScavangeMayHappenSoon(available, 0));
-}
-
-
-TEST(GCIdleTimeHandler, ScavangeMayHappenSoonNonZeroFalse) {
-  size_t available = (GCIdleTimeHandler::kMaxFrameRenderingIdleTime + 1) * KB;
-  size_t speed = 1 * KB;
-  EXPECT_FALSE(GCIdleTimeHandler::ScavangeMayHappenSoon(available, speed));
-}
-
-
-TEST(GCIdleTimeHandler, ScavangeMayHappenSoonNonZeroTrue) {
-  size_t available = GCIdleTimeHandler::kMaxFrameRenderingIdleTime * KB;
-  size_t speed = 1 * KB;
-  EXPECT_TRUE(GCIdleTimeHandler::ScavangeMayHappenSoon(available, speed));
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, AfterContextDisposeLargeIdleTime) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  heap_state.contexts_disposed = 1;
-  heap_state.incremental_marking_stopped = true;
-  size_t speed = heap_state.mark_compact_speed_in_bytes_per_ms;
-  int idle_time_ms =
-      static_cast<int>((heap_state.size_of_objects + speed - 1) / speed);
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_FULL_GC, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, AfterContextDisposeSmallIdleTime1) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  heap_state.contexts_disposed = 1;
-  heap_state.incremental_marking_stopped = true;
-  size_t speed = heap_state.mark_compact_speed_in_bytes_per_ms;
-  int idle_time_ms = static_cast<int>(heap_state.size_of_objects / speed - 1);
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, AfterContextDisposeSmallIdleTime2) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  heap_state.contexts_disposed = 1;
-  size_t speed = heap_state.mark_compact_speed_in_bytes_per_ms;
-  int idle_time_ms = static_cast<int>(heap_state.size_of_objects / speed - 1);
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, IncrementalMarking1) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  size_t speed = heap_state.incremental_marking_speed_in_bytes_per_ms;
-  int idle_time_ms = 10;
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-  EXPECT_GT(speed * static_cast<size_t>(idle_time_ms),
-            static_cast<size_t>(action.parameter));
-  EXPECT_LT(0, action.parameter);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, IncrementalMarking2) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  heap_state.incremental_marking_stopped = true;
-  size_t speed = heap_state.incremental_marking_speed_in_bytes_per_ms;
-  int idle_time_ms = 10;
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-  EXPECT_GT(speed * static_cast<size_t>(idle_time_ms),
-            static_cast<size_t>(action.parameter));
-  EXPECT_LT(0, action.parameter);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, NotEnoughTime) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  heap_state.incremental_marking_stopped = true;
-  heap_state.can_start_incremental_marking = false;
-  size_t speed = heap_state.mark_compact_speed_in_bytes_per_ms;
-  int idle_time_ms = static_cast<int>(heap_state.size_of_objects / speed - 1);
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_NOTHING, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, StopEventually1) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  heap_state.incremental_marking_stopped = true;
-  heap_state.can_start_incremental_marking = false;
-  size_t speed = heap_state.mark_compact_speed_in_bytes_per_ms;
-  int idle_time_ms = static_cast<int>(heap_state.size_of_objects / speed + 1);
-  for (int i = 0; i < GCIdleTimeHandler::kMaxMarkCompactsInIdleRound; i++) {
-    GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-    EXPECT_EQ(DO_FULL_GC, action.type);
-    handler()->NotifyIdleMarkCompact();
-  }
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DONE, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, StopEventually2) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  int idle_time_ms = 10;
-  for (int i = 0; i < GCIdleTimeHandler::kMaxMarkCompactsInIdleRound; i++) {
-    GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-    EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-    // In this case we emulate incremental marking steps that finish with a
-    // full gc.
-    handler()->NotifyIdleMarkCompact();
-  }
-  heap_state.can_start_incremental_marking = false;
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DONE, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, ContinueAfterStop1) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  heap_state.incremental_marking_stopped = true;
-  heap_state.can_start_incremental_marking = false;
-  size_t speed = heap_state.mark_compact_speed_in_bytes_per_ms;
-  int idle_time_ms = static_cast<int>(heap_state.size_of_objects / speed + 1);
-  for (int i = 0; i < GCIdleTimeHandler::kMaxMarkCompactsInIdleRound; i++) {
-    GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-    EXPECT_EQ(DO_FULL_GC, action.type);
-    handler()->NotifyIdleMarkCompact();
-  }
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DONE, action.type);
-  // Emulate mutator work.
-  for (int i = 0; i < GCIdleTimeHandler::kIdleScavengeThreshold; i++) {
-    handler()->NotifyScavenge();
-  }
-  action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_FULL_GC, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, ContinueAfterStop2) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  int idle_time_ms = 10;
-  for (int i = 0; i < GCIdleTimeHandler::kMaxMarkCompactsInIdleRound; i++) {
-    GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-    if (action.type == DONE) break;
-    EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-    // In this case we try to emulate incremental marking steps the finish with
-    // a full gc.
-    handler()->NotifyIdleMarkCompact();
-  }
-  heap_state.can_start_incremental_marking = false;
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DONE, action.type);
-  // Emulate mutator work.
-  for (int i = 0; i < GCIdleTimeHandler::kIdleScavengeThreshold; i++) {
-    handler()->NotifyScavenge();
-  }
-  heap_state.can_start_incremental_marking = true;
-  action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, Scavenge) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  int idle_time_ms = 10;
-  heap_state.available_new_space_memory =
-      kNewSpaceAllocationThroughput * idle_time_ms;
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_SCAVENGE, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, ScavengeAndDone) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  int idle_time_ms = 10;
-  heap_state.can_start_incremental_marking = false;
-  heap_state.incremental_marking_stopped = true;
-  heap_state.available_new_space_memory =
-      kNewSpaceAllocationThroughput * idle_time_ms;
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_SCAVENGE, action.type);
-  heap_state.available_new_space_memory = kNewSpaceCapacity;
-  action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_NOTHING, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, ZeroIdleTimeNothingToDo) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  int idle_time_ms = 0;
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  EXPECT_EQ(DO_NOTHING, action.type);
-}
-
-
-TEST_F(GCIdleTimeHandlerTest, ZeroIdleTimeDoNothingButStartIdleRound) {
-  GCIdleTimeHandler::HeapState heap_state = DefaultHeapState();
-  int idle_time_ms = 10;
-  for (int i = 0; i < GCIdleTimeHandler::kMaxMarkCompactsInIdleRound; i++) {
-    GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-    if (action.type == DONE) break;
-    EXPECT_EQ(DO_INCREMENTAL_MARKING, action.type);
-    // In this case we try to emulate incremental marking steps the finish with
-    // a full gc.
-    handler()->NotifyIdleMarkCompact();
-  }
-  GCIdleTimeAction action = handler()->Compute(idle_time_ms, heap_state);
-  // Emulate mutator work.
-  for (int i = 0; i < GCIdleTimeHandler::kIdleScavengeThreshold; i++) {
-    handler()->NotifyScavenge();
-  }
-  action = handler()->Compute(0, heap_state);
-  EXPECT_EQ(DO_NOTHING, action.type);
-}
-
-}  // namespace internal
-}  // namespace v8