base/trace_event/process_memory_totals_dump_provider_unittest.cc - Issue 1417003003: [tracing] Dump child processes' memory metrics in browser

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Side by Side Diff: base/trace_event/process_memory_totals_dump_provider_unittest.cc

Issue 1417003003: [tracing] Dump child processes' memory metrics in browser (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@web_cache2_base

Patch Set: dNits. Created 5 years, 1 month ago

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1 // Copyright 2015 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.

4

5 #include "base/trace_event/process_memory_totals_dump_provider.h"

6

7 #include "base/trace_event/process_memory_dump.h"

8 #include "base/trace_event/process_memory_totals.h"

9 #include "testing/gtest/include/gtest/gtest.h"

10

11 namespace base {

12 namespace trace_event {

13

14 TEST(ProcessMemoryTotalsDumpProviderTest, DumpRSS) {

15 const MemoryDumpArgs high_detail_args = {MemoryDumpLevelOfDetail::DETAILED};

16 auto pmtdp = ProcessMemoryTotalsDumpProvider::GetInstance();

17 scoped_ptr<ProcessMemoryDump> pmd_before(new ProcessMemoryDump(nullptr));

18 scoped_ptr<ProcessMemoryDump> pmd_after(new ProcessMemoryDump(nullptr));

19

20 ProcessMemoryTotalsDumpProvider::rss_bytes_for_testing = 1024;

21 pmtdp->OnMemoryDump(high_detail_args, pmd_before.get());

22

23 // Pretend that the RSS of the process increased of +1M.

24 const size_t kAllocSize = 1048576;

25 ProcessMemoryTotalsDumpProvider::rss_bytes_for_testing += kAllocSize;

26

27 pmtdp->OnMemoryDump(high_detail_args, pmd_after.get());

28

29 ProcessMemoryTotalsDumpProvider::rss_bytes_for_testing = 0;

30

31 ASSERT_TRUE(pmd_before->has_process_totals());

32 ASSERT_TRUE(pmd_after->has_process_totals());

33

34 const uint64 rss_before = pmd_before->process_totals()->resident_set_bytes();

35 const uint64 rss_after = pmd_after->process_totals()->resident_set_bytes();

36

37 EXPECT_NE(0U, rss_before);

38 EXPECT_NE(0U, rss_after);

39

40 EXPECT_EQ(rss_after - rss_before, kAllocSize);

41 }

42

43 } // namespace trace_event

44 } // namespace base

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