File: histogram_manager_unittest.cc

package info (click to toggle)
chromium-browser 41.0.2272.118-1
  • links: PTS, VCS
  • area: main
  • in suites: jessie-kfreebsd
  • size: 2,189,132 kB
  • sloc: cpp: 9,691,462; ansic: 3,341,451; python: 712,689; asm: 518,779; xml: 208,926; java: 169,820; sh: 119,353; perl: 68,907; makefile: 28,311; yacc: 13,305; objc: 11,385; tcl: 3,186; cs: 2,225; sql: 2,217; lex: 2,215; lisp: 1,349; pascal: 1,256; awk: 407; ruby: 155; sed: 53; php: 14; exp: 11
file content (58 lines) | stat: -rw-r--r-- 2,200 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
// Copyright 2014 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 "components/metrics/histogram_manager.h"

#include <string>

#include "base/basictypes.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace metrics {

// TODO(mef): crbug.com/441441. Move components/metrics/histogram_manager.*
// files into components/android/cronet.
// TODO(rtenneti): enable flaky HistogramBucketFields unit test.
TEST(HistogramManager, DISABLED_HistogramBucketFields) {
  // Capture histograms at the start of the test to avoid later GetDeltas()
  // calls picking them up.
  std::vector<uint8> data_init;
  HistogramManager::GetInstance()->GetDeltas(&data_init);

  // kNoFlags filter should record all histograms.
  UMA_HISTOGRAM_ENUMERATION("UmaHistogramManager", 1, 2);

  std::vector<uint8> data;
  EXPECT_TRUE(HistogramManager::GetInstance()->GetDeltas(&data));
  EXPECT_FALSE(data.empty());
  ChromeUserMetricsExtension uma_proto;
  EXPECT_TRUE(uma_proto.ParseFromArray(
      reinterpret_cast<const char*>(&data[0]), data.size()));
  EXPECT_FALSE(data.empty());

  const HistogramEventProto& histogram_proto =
      uma_proto.histogram_event(uma_proto.histogram_event_size() - 1);
  ASSERT_EQ(1, histogram_proto.bucket_size());
  EXPECT_LE(0, histogram_proto.bucket(0).min());
  EXPECT_LE(2, histogram_proto.bucket(0).max());
  EXPECT_EQ(1, histogram_proto.bucket(0).count());

  UMA_HISTOGRAM_ENUMERATION("UmaHistogramManager2", 2, 3);
  std::vector<uint8> data2;
  EXPECT_TRUE(HistogramManager::GetInstance()->GetDeltas(&data2));
  EXPECT_FALSE(data2.empty());
  ChromeUserMetricsExtension uma_proto2;
  EXPECT_TRUE(uma_proto2.ParseFromArray(
      reinterpret_cast<const char*>(&data2[0]), data2.size()));
  EXPECT_FALSE(data2.empty());

  const HistogramEventProto& histogram_proto2 =
      uma_proto2.histogram_event(uma_proto2.histogram_event_size() - 1);
  ASSERT_EQ(1, histogram_proto2.bucket_size());
  EXPECT_LE(0, histogram_proto2.bucket(0).min());
  EXPECT_LE(3, histogram_proto2.bucket(0).max());
  EXPECT_EQ(1, histogram_proto2.bucket(0).count());
}

}  // namespace metrics