1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #include "mozilla/TimeStamp.h" 8 9 #include "prinrval.h" 10 #include "prthread.h" 11 12 #include "gtest/gtest.h" 13 14 using mozilla::TimeDuration; 15 using mozilla::TimeStamp; 16 TEST(TimeStamp,Main)17TEST(TimeStamp, Main) 18 { 19 TimeDuration td; 20 EXPECT_TRUE(td.ToSeconds() == 0.0); 21 EXPECT_TRUE(TimeDuration::FromSeconds(5).ToSeconds() == 5.0); 22 EXPECT_TRUE(TimeDuration::FromMilliseconds(5000).ToSeconds() == 5.0); 23 EXPECT_TRUE(TimeDuration::FromSeconds(1) < TimeDuration::FromSeconds(2)); 24 EXPECT_FALSE(TimeDuration::FromSeconds(1) < TimeDuration::FromSeconds(1)); 25 EXPECT_TRUE(TimeDuration::FromSeconds(2) > TimeDuration::FromSeconds(1)); 26 EXPECT_FALSE(TimeDuration::FromSeconds(1) > TimeDuration::FromSeconds(1)); 27 EXPECT_TRUE(TimeDuration::FromSeconds(1) <= TimeDuration::FromSeconds(2)); 28 EXPECT_TRUE(TimeDuration::FromSeconds(1) <= TimeDuration::FromSeconds(1)); 29 EXPECT_FALSE(TimeDuration::FromSeconds(2) <= TimeDuration::FromSeconds(1)); 30 EXPECT_TRUE(TimeDuration::FromSeconds(2) >= TimeDuration::FromSeconds(1)); 31 EXPECT_TRUE(TimeDuration::FromSeconds(1) >= TimeDuration::FromSeconds(1)); 32 EXPECT_FALSE(TimeDuration::FromSeconds(1) >= TimeDuration::FromSeconds(2)); 33 34 TimeStamp ts; 35 EXPECT_TRUE(ts.IsNull()); 36 37 ts = TimeStamp::Now(); 38 EXPECT_TRUE(!ts.IsNull()); 39 EXPECT_TRUE((ts - ts).ToSeconds() == 0.0); 40 41 PR_Sleep(PR_SecondsToInterval(2)); 42 43 TimeStamp ts2(TimeStamp::Now()); 44 EXPECT_TRUE(ts2 > ts); 45 EXPECT_FALSE(ts > ts); 46 EXPECT_TRUE(ts < ts2); 47 EXPECT_FALSE(ts < ts); 48 EXPECT_TRUE(ts <= ts2); 49 EXPECT_TRUE(ts <= ts); 50 EXPECT_FALSE(ts2 <= ts); 51 EXPECT_TRUE(ts2 >= ts); 52 EXPECT_TRUE(ts2 >= ts); 53 EXPECT_FALSE(ts >= ts2); 54 55 // We can't be sure exactly how long PR_Sleep slept for. It should have 56 // slept for at least one second. We might have slept a lot longer due 57 // to process scheduling, but hopefully not more than 10 seconds. 58 td = ts2 - ts; 59 EXPECT_TRUE(td.ToSeconds() > 1.0); 60 EXPECT_TRUE(td.ToSeconds() < 20.0); 61 td = ts - ts2; 62 EXPECT_TRUE(td.ToSeconds() < -1.0); 63 EXPECT_TRUE(td.ToSeconds() > -20.0); 64 65 double resolution = TimeDuration::Resolution().ToSecondsSigDigits(); 66 printf(" (platform timer resolution is ~%g s)\n", resolution); 67 EXPECT_TRUE(1e-10 < resolution); 68 // Don't upper-bound sanity check ... although NSPR reports 1ms 69 // resolution, it might be lying, so we shouldn't compare with it 70 } 71