DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (b66b287a2650)

VCS Links

Line Code
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 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
// Copyright (c) 2006-2008 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 <time.h>

#include "base/platform_thread.h"
#include "base/time.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"

using base::Time;
using base::TimeDelta;
using base::TimeTicks;

// Test conversions to/from time_t and exploding/unexploding.
TEST(Time, TimeT) {
  // C library time and exploded time.
  time_t now_t_1 = time(NULL);
  struct tm tms;
#if defined(OS_WIN)
  localtime_s(&tms, &now_t_1);
#elif defined(OS_POSIX)
  localtime_r(&now_t_1, &tms);
#endif

  // Convert to ours.
  Time our_time_1 = Time::FromTimeT(now_t_1);
  Time::Exploded exploded;
  our_time_1.LocalExplode(&exploded);

  // This will test both our exploding and our time_t -> Time conversion.
  EXPECT_EQ(tms.tm_year + 1900, exploded.year);
  EXPECT_EQ(tms.tm_mon + 1, exploded.month);
  EXPECT_EQ(tms.tm_mday, exploded.day_of_month);
  EXPECT_EQ(tms.tm_hour, exploded.hour);
  EXPECT_EQ(tms.tm_min, exploded.minute);
  EXPECT_EQ(tms.tm_sec, exploded.second);

  // Convert exploded back to the time struct.
  Time our_time_2 = Time::FromLocalExploded(exploded);
  EXPECT_TRUE(our_time_1 == our_time_2);

  time_t now_t_2 = our_time_2.ToTimeT();
  EXPECT_EQ(now_t_1, now_t_2);

  EXPECT_EQ(10, Time().FromTimeT(10).ToTimeT());
  EXPECT_EQ(10.0, Time().FromTimeT(10).ToDoubleT());

  // Conversions of 0 should stay 0.
  EXPECT_EQ(0, Time().ToTimeT());
  EXPECT_EQ(0, Time::FromTimeT(0).ToInternalValue());
}

TEST(Time, ZeroIsSymmetric) {
  Time zero_time(Time::FromTimeT(0));
  EXPECT_EQ(0, zero_time.ToTimeT());

  EXPECT_EQ(0.0, zero_time.ToDoubleT());
}

TEST(Time, LocalExplode) {
  Time a = Time::Now();
  Time::Exploded exploded;
  a.LocalExplode(&exploded);

  Time b = Time::FromLocalExploded(exploded);

  // The exploded structure doesn't have microseconds, so the result will be
  // rounded to the nearest millisecond.
  EXPECT_TRUE((a - b) < TimeDelta::FromMilliseconds(1));
}

TEST(Time, UTCExplode) {
  Time a = Time::Now();
  Time::Exploded exploded;
  a.UTCExplode(&exploded);

  Time b = Time::FromUTCExploded(exploded);
  EXPECT_TRUE((a - b) < TimeDelta::FromMilliseconds(1));
}

TEST(Time, LocalMidnight) {
  Time::Exploded exploded;
  Time::Now().LocalMidnight().LocalExplode(&exploded);
  EXPECT_EQ(0, exploded.hour);
  EXPECT_EQ(0, exploded.minute);
  EXPECT_EQ(0, exploded.second);
  EXPECT_EQ(0, exploded.millisecond);
}

TEST(TimeTicks, Deltas) {
  for (int index = 0; index < 500; index++) {
    TimeTicks ticks_start = TimeTicks::Now();
    PlatformThread::Sleep(10);
    TimeTicks ticks_stop = TimeTicks::Now();
    TimeDelta delta = ticks_stop - ticks_start;
    // Note:  Although we asked for a 10ms sleep, if the
    // time clock has a finer granularity than the Sleep()
    // clock, it is quite possible to wakeup early.  Here
    // is how that works:
    //      Time(ms timer)      Time(us timer)
    //          5                   5010
    //          6                   6010
    //          7                   7010
    //          8                   8010
    //          9                   9000
    // Elapsed  4ms                 3990us
    //
    // Unfortunately, our InMilliseconds() function truncates
    // rather than rounds.  We should consider fixing this
    // so that our averages come out better.
    EXPECT_GE(delta.InMilliseconds(), 9);
    EXPECT_GE(delta.InMicroseconds(), 9000);
    EXPECT_EQ(delta.InSeconds(), 0);
  }
}

TEST(TimeTicks, HighResNow) {
  TimeTicks ticks_start = TimeTicks::HighResNow();
  PlatformThread::Sleep(10);
  TimeTicks ticks_stop = TimeTicks::HighResNow();
  TimeDelta delta = ticks_stop - ticks_start;
  EXPECT_GE(delta.InMicroseconds(), 9000);
}

TEST(TimeDelta, FromAndIn) {
  EXPECT_TRUE(TimeDelta::FromDays(2) == TimeDelta::FromHours(48));
  EXPECT_TRUE(TimeDelta::FromHours(3) == TimeDelta::FromMinutes(180));
  EXPECT_TRUE(TimeDelta::FromMinutes(2) == TimeDelta::FromSeconds(120));
  EXPECT_TRUE(TimeDelta::FromSeconds(2) == TimeDelta::FromMilliseconds(2000));
  EXPECT_TRUE(TimeDelta::FromMilliseconds(2) ==
              TimeDelta::FromMicroseconds(2000));
  EXPECT_EQ(13, TimeDelta::FromDays(13).InDays());
  EXPECT_EQ(13, TimeDelta::FromHours(13).InHours());
  EXPECT_EQ(13, TimeDelta::FromMinutes(13).InMinutes());
  EXPECT_EQ(13, TimeDelta::FromSeconds(13).InSeconds());
  EXPECT_EQ(13.0, TimeDelta::FromSeconds(13).InSecondsF());
  EXPECT_EQ(13, TimeDelta::FromMilliseconds(13).InMilliseconds());
  EXPECT_EQ(13.0, TimeDelta::FromMilliseconds(13).InMillisecondsF());
  EXPECT_EQ(13, TimeDelta::FromMicroseconds(13).InMicroseconds());
}