102 lines
3.8 KiB
C++
102 lines
3.8 KiB
C++
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// Copyright 2023 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/android/meminfo_dump_provider.h"
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#include "base/android/build_info.h"
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#include "base/trace_event/base_tracing.h"
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#include "testing/gtest/include/gtest/gtest.h"
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#include <cstdint>
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#include <map>
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#include <string>
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namespace base::android {
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namespace {
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std::map<std::string, uint64_t> GetEntries(
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base::trace_event::MemoryAllocatorDump* dump) {
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std::map<std::string, uint64_t> entries;
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for (const auto& entry : dump->entries()) {
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EXPECT_EQ(entry.entry_type,
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base::trace_event::MemoryAllocatorDump::Entry::kUint64);
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entries.insert({entry.name, entry.value_uint64});
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}
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return entries;
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}
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} // namespace
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TEST(MeminfoDumpProviderTest, Simple) {
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auto& instance = MeminfoDumpProvider::Initialize();
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base::trace_event::MemoryDumpArgs args{};
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args.level_of_detail = base::trace_event::MemoryDumpLevelOfDetail::DETAILED;
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base::trace_event::ProcessMemoryDump first_pmd{args};
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bool success = instance.OnMemoryDump(args, &first_pmd);
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ASSERT_TRUE(success);
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base::trace_event::MemoryAllocatorDump* first_dump =
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first_pmd.GetAllocatorDump(MeminfoDumpProvider::kDumpName);
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ASSERT_TRUE(first_dump);
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std::map<std::string, uint64_t> first_entries = GetEntries(first_dump);
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EXPECT_TRUE(first_entries.contains(
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MeminfoDumpProvider::kIsStaleName)); // Cannot assert on the value.
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// Expect the values to not be 0, that would indicate that the values are not
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// reported.
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ASSERT_TRUE(
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first_entries.contains(MeminfoDumpProvider::kPrivateDirtyMetricName));
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ASSERT_TRUE(first_entries.contains(MeminfoDumpProvider::kPssMetricName));
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EXPECT_GT(first_entries[MeminfoDumpProvider::kPrivateDirtyMetricName], 0u);
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EXPECT_GT(first_entries[MeminfoDumpProvider::kPssMetricName], 0u);
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base::trace_event::ProcessMemoryDump second_pmd{args};
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ASSERT_TRUE(instance.OnMemoryDump(args, &second_pmd));
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base::trace_event::MemoryAllocatorDump* second_dump =
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second_pmd.GetAllocatorDump(MeminfoDumpProvider::kDumpName);
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ASSERT_TRUE(second_dump);
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std::map<std::string, uint64_t> second_entries = GetEntries(second_dump);
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EXPECT_TRUE(second_entries.contains(MeminfoDumpProvider::kIsStaleName));
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EXPECT_TRUE(
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second_entries[MeminfoDumpProvider::kIsStaleName]); // Entries are stale
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// this time.
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ASSERT_TRUE(
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second_entries.contains(MeminfoDumpProvider::kPrivateDirtyMetricName));
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ASSERT_TRUE(second_entries.contains(MeminfoDumpProvider::kPssMetricName));
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if (BuildInfo::GetInstance()->sdk_int() >= SdkVersion::SDK_VERSION_Q) {
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// Stale values are reported.
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EXPECT_EQ(first_entries[MeminfoDumpProvider::kPrivateDirtyMetricName],
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second_entries[MeminfoDumpProvider::kPrivateDirtyMetricName]);
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EXPECT_EQ(first_entries[MeminfoDumpProvider::kPssMetricName],
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second_entries[MeminfoDumpProvider::kPssMetricName]);
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}
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}
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TEST(MeminfoDumpProviderTest, NoStaleReportsInBackgroundDumps) {
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auto& instance = MeminfoDumpProvider::Initialize();
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// First dump, data may or may not be stale.
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{
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base::trace_event::MemoryDumpArgs args{};
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args.level_of_detail = base::trace_event::MemoryDumpLevelOfDetail::DETAILED;
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base::trace_event::ProcessMemoryDump pmd{args};
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ASSERT_TRUE(instance.OnMemoryDump(args, &pmd));
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}
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// Second one, stale data, should not report.
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{
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base::trace_event::MemoryDumpArgs args{};
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args.level_of_detail =
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base::trace_event::MemoryDumpLevelOfDetail::BACKGROUND;
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base::trace_event::ProcessMemoryDump pmd{args};
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ASSERT_TRUE(instance.OnMemoryDump(args, &pmd));
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base::trace_event::MemoryAllocatorDump* dump =
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pmd.GetAllocatorDump(MeminfoDumpProvider::kDumpName);
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EXPECT_FALSE(dump);
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}
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}
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} // namespace base::android
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