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-rw-r--r--base/metrics/histogram_unittest.cc117
1 files changed, 66 insertions, 51 deletions
diff --git a/base/metrics/histogram_unittest.cc b/base/metrics/histogram_unittest.cc
index afa69a6..496ff63 100644
--- a/base/metrics/histogram_unittest.cc
+++ b/base/metrics/histogram_unittest.cc
@@ -1,10 +1,11 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
// Test of Histogram class
#include "base/metrics/histogram.h"
+#include "base/scoped_ptr.h"
#include "base/time.h"
#include "testing/gtest/include/gtest/gtest.h"
@@ -17,15 +18,22 @@ class HistogramTest : public testing::Test {
// Check for basic syntax and use.
TEST(HistogramTest, StartupShutdownTest) {
// Try basic construction
- scoped_refptr<Histogram> histogram = Histogram::FactoryGet(
- "TestHistogram", 1, 1000, 10, Histogram::kNoFlags);
- scoped_refptr<Histogram> histogram1 = Histogram::FactoryGet(
- "Test1Histogram", 1, 1000, 10, Histogram::kNoFlags);
-
- scoped_refptr<Histogram> linear_histogram = LinearHistogram::FactoryGet(
- "TestLinearHistogram", 1, 1000, 10, Histogram::kNoFlags);
- scoped_refptr<Histogram> linear_histogram1 = LinearHistogram::FactoryGet(
- "Test1LinearHistogram", 1, 1000, 10, Histogram::kNoFlags);
+ Histogram* histogram(Histogram::FactoryGet(
+ "TestHistogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), histogram);
+ Histogram* histogram1(Histogram::FactoryGet(
+ "Test1Histogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), histogram1);
+ EXPECT_NE(histogram, histogram1);
+
+
+ Histogram* linear_histogram(LinearHistogram::FactoryGet(
+ "TestLinearHistogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), linear_histogram);
+ Histogram* linear_histogram1(LinearHistogram::FactoryGet(
+ "Test1LinearHistogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), linear_histogram1);
+ EXPECT_NE(linear_histogram, linear_histogram1);
std::vector<int> custom_ranges;
custom_ranges.push_back(1);
@@ -33,10 +41,12 @@ TEST(HistogramTest, StartupShutdownTest) {
custom_ranges.push_back(10);
custom_ranges.push_back(20);
custom_ranges.push_back(30);
- scoped_refptr<Histogram> custom_histogram = CustomHistogram::FactoryGet(
- "TestCustomHistogram", custom_ranges, Histogram::kNoFlags);
- scoped_refptr<Histogram> custom_histogram1 = CustomHistogram::FactoryGet(
- "Test1CustomHistogram", custom_ranges, Histogram::kNoFlags);
+ Histogram* custom_histogram(CustomHistogram::FactoryGet(
+ "TestCustomHistogram", custom_ranges, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), custom_histogram);
+ Histogram* custom_histogram1(CustomHistogram::FactoryGet(
+ "Test1CustomHistogram", custom_ranges, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), custom_histogram1);
// Use standard macros (but with fixed samples)
HISTOGRAM_TIMES("Test2Histogram", TimeDelta::FromDays(1));
@@ -70,25 +80,29 @@ TEST(HistogramTest, RecordedStartupTest) {
EXPECT_EQ(0U, histograms.size());
// Try basic construction
- scoped_refptr<Histogram> histogram = Histogram::FactoryGet(
- "TestHistogram", 1, 1000, 10, Histogram::kNoFlags);
+ Histogram* histogram(Histogram::FactoryGet(
+ "TestHistogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), histogram);
histograms.clear();
StatisticsRecorder::GetHistograms(&histograms); // Load up lists
EXPECT_EQ(1U, histograms.size());
- scoped_refptr<Histogram> histogram1 = Histogram::FactoryGet(
- "Test1Histogram", 1, 1000, 10, Histogram::kNoFlags);
+ Histogram* histogram1(Histogram::FactoryGet(
+ "Test1Histogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), histogram1);
histograms.clear();
StatisticsRecorder::GetHistograms(&histograms); // Load up lists
EXPECT_EQ(2U, histograms.size());
- scoped_refptr<Histogram> linear_histogram = LinearHistogram::FactoryGet(
- "TestLinearHistogram", 1, 1000, 10, Histogram::kNoFlags);
+ Histogram* linear_histogram(LinearHistogram::FactoryGet(
+ "TestLinearHistogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), linear_histogram);
histograms.clear();
StatisticsRecorder::GetHistograms(&histograms); // Load up lists
EXPECT_EQ(3U, histograms.size());
- scoped_refptr<Histogram> linear_histogram1 = LinearHistogram::FactoryGet(
- "Test1LinearHistogram", 1, 1000, 10, Histogram::kNoFlags);
+ Histogram* linear_histogram1(LinearHistogram::FactoryGet(
+ "Test1LinearHistogram", 1, 1000, 10, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), linear_histogram1);
histograms.clear();
StatisticsRecorder::GetHistograms(&histograms); // Load up lists
EXPECT_EQ(4U, histograms.size());
@@ -99,10 +113,12 @@ TEST(HistogramTest, RecordedStartupTest) {
custom_ranges.push_back(10);
custom_ranges.push_back(20);
custom_ranges.push_back(30);
- scoped_refptr<Histogram> custom_histogram = CustomHistogram::FactoryGet(
- "TestCustomHistogram", custom_ranges, Histogram::kNoFlags);
- scoped_refptr<Histogram> custom_histogram1 = CustomHistogram::FactoryGet(
- "TestCustomHistogram", custom_ranges, Histogram::kNoFlags);
+ Histogram* custom_histogram(CustomHistogram::FactoryGet(
+ "TestCustomHistogram", custom_ranges, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), custom_histogram);
+ Histogram* custom_histogram1(CustomHistogram::FactoryGet(
+ "TestCustomHistogram", custom_ranges, Histogram::kNoFlags));
+ EXPECT_NE(reinterpret_cast<Histogram*>(NULL), custom_histogram1);
histograms.clear();
StatisticsRecorder::GetHistograms(&histograms); // Load up lists
@@ -138,8 +154,8 @@ TEST(HistogramTest, RangeTest) {
recorder.GetHistograms(&histograms);
EXPECT_EQ(0U, histograms.size());
- scoped_refptr<Histogram> histogram = Histogram::FactoryGet(
- "Histogram", 1, 64, 8, Histogram::kNoFlags); // As per header file.
+ Histogram* histogram(Histogram::FactoryGet(
+ "Histogram", 1, 64, 8, Histogram::kNoFlags)); // As per header file.
// Check that we got a nice exponential when there was enough rooom.
EXPECT_EQ(0, histogram->ranges(0));
int power_of_2 = 1;
@@ -149,31 +165,30 @@ TEST(HistogramTest, RangeTest) {
}
EXPECT_EQ(INT_MAX, histogram->ranges(8));
- scoped_refptr<Histogram> short_histogram = Histogram::FactoryGet(
- "Histogram Shortened", 1, 7, 8, Histogram::kNoFlags);
+ Histogram* short_histogram(Histogram::FactoryGet(
+ "Histogram Shortened", 1, 7, 8, Histogram::kNoFlags));
// Check that when the number of buckets is short, we get a linear histogram
// for lack of space to do otherwise.
for (int i = 0; i < 8; i++)
EXPECT_EQ(i, short_histogram->ranges(i));
EXPECT_EQ(INT_MAX, short_histogram->ranges(8));
- scoped_refptr<Histogram> linear_histogram = LinearHistogram::FactoryGet(
- "Linear", 1, 7, 8, Histogram::kNoFlags);
+ Histogram* linear_histogram(LinearHistogram::FactoryGet(
+ "Linear", 1, 7, 8, Histogram::kNoFlags));
// We also get a nice linear set of bucket ranges when we ask for it
for (int i = 0; i < 8; i++)
EXPECT_EQ(i, linear_histogram->ranges(i));
EXPECT_EQ(INT_MAX, linear_histogram->ranges(8));
- scoped_refptr<Histogram> linear_broad_histogram = LinearHistogram::FactoryGet(
- "Linear widened", 2, 14, 8, Histogram::kNoFlags);
+ Histogram* linear_broad_histogram(LinearHistogram::FactoryGet(
+ "Linear widened", 2, 14, 8, Histogram::kNoFlags));
// ...but when the list has more space, then the ranges naturally spread out.
for (int i = 0; i < 8; i++)
EXPECT_EQ(2 * i, linear_broad_histogram->ranges(i));
EXPECT_EQ(INT_MAX, linear_broad_histogram->ranges(8));
- scoped_refptr<Histogram> transitioning_histogram =
- Histogram::FactoryGet("LinearAndExponential", 1, 32, 15,
- Histogram::kNoFlags);
+ Histogram* transitioning_histogram(Histogram::FactoryGet(
+ "LinearAndExponential", 1, 32, 15, Histogram::kNoFlags));
// When space is a little tight, we transition from linear to exponential.
EXPECT_EQ(0, transitioning_histogram->ranges(0));
EXPECT_EQ(1, transitioning_histogram->ranges(1));
@@ -198,8 +213,8 @@ TEST(HistogramTest, RangeTest) {
custom_ranges.push_back(10);
custom_ranges.push_back(11);
custom_ranges.push_back(300);
- scoped_refptr<Histogram> test_custom_histogram = CustomHistogram::FactoryGet(
- "TestCustomRangeHistogram", custom_ranges, Histogram::kNoFlags);
+ Histogram* test_custom_histogram(CustomHistogram::FactoryGet(
+ "TestCustomRangeHistogram", custom_ranges, Histogram::kNoFlags));
EXPECT_EQ(custom_ranges[0], test_custom_histogram->ranges(0));
EXPECT_EQ(custom_ranges[1], test_custom_histogram->ranges(1));
@@ -221,8 +236,8 @@ TEST(HistogramTest, CustomRangeTest) {
custom_ranges.push_back(9);
custom_ranges.push_back(10);
custom_ranges.push_back(11);
- scoped_refptr<Histogram> test_custom_histogram = CustomHistogram::FactoryGet(
- "TestCustomRangeHistogram", custom_ranges, Histogram::kNoFlags);
+ Histogram* test_custom_histogram(CustomHistogram::FactoryGet(
+ "TestCustomRangeHistogram", custom_ranges, Histogram::kNoFlags));
EXPECT_EQ(0, test_custom_histogram->ranges(0)); // Auto added
EXPECT_EQ(custom_ranges[0], test_custom_histogram->ranges(1));
@@ -242,8 +257,8 @@ TEST(HistogramTest, CustomRangeTest) {
custom_ranges.push_back(0); // Push an explicit zero.
custom_ranges.push_back(kBig);
- scoped_refptr<Histogram> unsorted_histogram = CustomHistogram::FactoryGet(
- "TestCustomUnsortedDupedHistogram", custom_ranges, Histogram::kNoFlags);
+ Histogram* unsorted_histogram(CustomHistogram::FactoryGet(
+ "TestCustomUnsortedDupedHistogram", custom_ranges, Histogram::kNoFlags));
EXPECT_EQ(0, unsorted_histogram->ranges(0));
EXPECT_EQ(kSmall, unsorted_histogram->ranges(1));
EXPECT_EQ(kMid, unsorted_histogram->ranges(2));
@@ -254,8 +269,8 @@ TEST(HistogramTest, CustomRangeTest) {
// Make sure histogram handles out-of-bounds data gracefully.
TEST(HistogramTest, BoundsTest) {
const size_t kBucketCount = 50;
- scoped_refptr<Histogram> histogram = Histogram::FactoryGet(
- "Bounded", 10, 100, kBucketCount, Histogram::kNoFlags);
+ Histogram* histogram(Histogram::FactoryGet(
+ "Bounded", 10, 100, kBucketCount, Histogram::kNoFlags));
// Put two samples "out of bounds" above and below.
histogram->Add(5);
@@ -277,8 +292,8 @@ TEST(HistogramTest, BoundsTest) {
// Check to be sure samples land as expected is "correct" buckets.
TEST(HistogramTest, BucketPlacementTest) {
- scoped_refptr<Histogram> histogram = Histogram::FactoryGet(
- "Histogram", 1, 64, 8, Histogram::kNoFlags); // As per header file.
+ Histogram* histogram(Histogram::FactoryGet(
+ "Histogram", 1, 64, 8, Histogram::kNoFlags)); // As per header file.
// Check that we got a nice exponential since there was enough rooom.
EXPECT_EQ(0, histogram->ranges(0));
@@ -314,8 +329,8 @@ TEST(HistogramTest, BucketPlacementTest) {
// out to the base namespace here. We need to be friends to corrupt the
// internals of the histogram and/or sampleset.
TEST(HistogramTest, CorruptSampleCounts) {
- scoped_refptr<Histogram> histogram = Histogram::FactoryGet(
- "Histogram", 1, 64, 8, Histogram::kNoFlags); // As per header file.
+ Histogram* histogram(Histogram::FactoryGet(
+ "Histogram", 1, 64, 8, Histogram::kNoFlags)); // As per header file.
EXPECT_EQ(0, histogram->sample_.redundant_count());
histogram->Add(20); // Add some samples.
@@ -339,8 +354,8 @@ TEST(HistogramTest, CorruptSampleCounts) {
}
TEST(HistogramTest, CorruptBucketBounds) {
- scoped_refptr<Histogram> histogram = Histogram::FactoryGet(
- "Histogram", 1, 64, 8, Histogram::kNoFlags); // As per header file.
+ Histogram* histogram(Histogram::FactoryGet(
+ "Histogram", 1, 64, 8, Histogram::kNoFlags)); // As per header file.
Histogram::SampleSet snapshot;
histogram->SnapshotSample(&snapshot);
generated by cgit v1.1 at 2025-02-01 13:13:36 +0000