Revert "[memory-infra] Add unittests for peak detection and NotifyDumpTriggered"

base/trace_event/memory_dump_scheduler_unittest.cc

Index: base/trace_event/memory_dump_scheduler_unittest.cc
diff --git a/base/trace_event/memory_dump_scheduler_unittest.cc b/base/trace_event/memory_dump_scheduler_unittest.cc
deleted file mode 100644
index 05344d5e1f2d8b8c0ffa9840391bcac7f845d370..0000000000000000000000000000000000000000
--- a/base/trace_event/memory_dump_scheduler_unittest.cc
+++ /dev/null
@@ -1,95 +0,0 @@
-// 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 "base/trace_event/memory_dump_scheduler.h"
-
-#include <memory>
-
-#include "base/single_thread_task_runner.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-namespace trace_event {
-
-class MemoryDumpSchedulerPollingTest : public testing::Test {
- public:
-  static const uint32_t kMinPollsToDump = 5;
-
-  MemoryDumpSchedulerPollingTest()
-      : testing::Test(),
-        num_samples_tracked_(
-            MemoryDumpScheduler::PollingTriggerState::kMaxNumMemorySamples) {}
-
-  void SetUp() override {
-    MemoryDumpScheduler::SetPollingIntervalForTesting(1);
-    uint32_t kMinPollsToDump = 5;
-    mds_.reset(new MemoryDumpScheduler(nullptr, nullptr));
-    mds_->AddTrigger(MemoryDumpType::PEAK_MEMORY_USAGE,
-                     MemoryDumpLevelOfDetail::LIGHT, kMinPollsToDump);
-    mds_->polling_state_.ResetTotals();
-    mds_->polling_state_.current_state =
-        MemoryDumpScheduler::PollingTriggerState::ENABLED;
-  }
-
-  void TearDown() override {
-    mds_->polling_state_.current_state =
-        MemoryDumpScheduler::PollingTriggerState::DISABLED;
-    mds_.reset();
-  }
-
- protected:
-  bool ShouldTriggerDump(uint64_t total) {
-    return mds_->ShouldTriggerDump(total);
-  }
-
-  uint32_t num_samples_tracked_;
-  std::unique_ptr<MemoryDumpScheduler> mds_;
-};
-
-TEST_F(MemoryDumpSchedulerPollingTest, PeakDetection) {
-  for (uint32_t i = 0; i < num_samples_tracked_ * 6; ++i) {
-    // Memory is increased in steps and dumps must be triggered at every step.
-    uint64_t total = (2 + (i / (2 * num_samples_tracked_))) * 1024 * 1204;
-    bool did_trigger = ShouldTriggerDump(total);
-    // Dumps must be triggered only at specific iterations.
-    bool should_have_triggered = i == 0;
-    should_have_triggered |=
-        (i > num_samples_tracked_) && (i % (2 * num_samples_tracked_) == 1);
-    if (should_have_triggered) {
-      ASSERT_TRUE(did_trigger) << "Dump wasn't triggered at " << i;
-    } else {
-      ASSERT_FALSE(did_trigger) << "Unexpected dump at " << i;
-    }
-  }
-}
-
-TEST_F(MemoryDumpSchedulerPollingTest, SlowGrowthDetection) {
-  for (uint32_t i = 0; i < 15; ++i) {
-    // Record 1GiB of increase in each call. Dumps are triggered with 1% w.r.t
-    // system's total memory.
-    uint64_t total = static_cast<uint64_t>(i + 1) * 1024 * 1024 * 1024;
-    bool did_trigger = ShouldTriggerDump(total);
-    bool should_have_triggered = i % kMinPollsToDump == 0;
-    if (should_have_triggered) {
-      ASSERT_TRUE(did_trigger) << "Dump wasn't triggered at " << i;
-    } else {
-      ASSERT_FALSE(did_trigger) << "Unexpected dump at " << i;
-    }
-  }
-}
-
-TEST_F(MemoryDumpSchedulerPollingTest, NotifyDumpTriggered) {
-  for (uint32_t i = 0; i < num_samples_tracked_ * 6; ++i) {
-    uint64_t total = (2 + (i / (2 * num_samples_tracked_))) * 1024 * 1204;
-    if (i % num_samples_tracked_ == 0)
-      mds_->NotifyDumpTriggered();
-    bool did_trigger = ShouldTriggerDump(total);
-    // Dumps should never be triggered since NotifyDumpTriggered() is called
-    // frequently.
-    ASSERT_FALSE(did_trigger && i);
-  }
-}
-
-}  // namespace trace_event
-}  // namespace base