OLD | NEW |
(Empty) | |
| 1 // Copyright (c) 2012 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 "webkit/renderer/compositor_bindings/webkit_time.h" |
| 6 |
| 7 #include <cmath> |
| 8 #include <limits> |
| 9 |
| 10 #include "base/time/time.h" |
| 11 #include "testing/gtest/include/gtest/gtest.h" |
| 12 |
| 13 using base::TimeTicks; |
| 14 |
| 15 TEST(WebKitTime, Conversion) { |
| 16 double double_zero = 0; |
| 17 double double_max = std::numeric_limits<double>::max(); |
| 18 double double_min = std::numeric_limits<double>::lowest(); |
| 19 double double_positive_inf = std::numeric_limits<double>::infinity(); |
| 20 double double_negative_inf = -std::numeric_limits<double>::infinity(); |
| 21 |
| 22 base::TimeTicks ticks_null = base::TimeTicks(); |
| 23 base::TimeTicks ticks_min = |
| 24 base::TimeTicks::FromInternalValue(std::numeric_limits<int64>::min()); |
| 25 base::TimeTicks ticks_max = |
| 26 base::TimeTicks::FromInternalValue(std::numeric_limits<int64>::max()); |
| 27 |
| 28 #if ENABLE_DCHECK |
| 29 EXPECT_EQ(double_zero, webkit::ToWebKitMonotonicTime(ticks_null)); |
| 30 EXPECT_EQ(ticks_null, webkit::ToWebKitMonotonicTime(double_zero)); |
| 31 #else |
| 32 ASSERT_DEATH(webkit::FromWebKitMonotonicTime(double_zero), "Check failed"); |
| 33 ASSERT_DEATH(webkit::FromWebKitMonotonicTime(double_max), "Check failed"); |
| 34 ASSERT_DEATH(webkit::FromWebKitMonotonicTime(double_min), "Check failed"); |
| 35 ASSERT_DEATH(webkit::FromWebKitMonotonicTime(double_positive_inf), |
| 36 "Check failed"); |
| 37 ASSERT_DEATH(webkit::FromWebKitMonotonicTime(double_negative_inf), |
| 38 "Check failed"); |
| 39 |
| 40 ASSERT_DEATH(webkit::ToWebKitMonotonicTime(ticks_null), "Check failed"); |
| 41 ASSERT_DEATH(webkit::ToWebKitMonotonicTime(ticks_min), "Check failed"); |
| 42 ASSERT_DEATH(webkit::ToWebKitMonotonicTime(ticks_max), "Check failed"); |
| 43 #endif |
| 44 |
| 45 // Round trip some values |
| 46 // Outside of 2**53 the int64->double->int64 round trip isn't exact. |
| 47 for (int i = -52; i < 52; i++) { |
| 48 if (!i) |
| 49 continue; |
| 50 |
| 51 SCOPED_TRACE(i); |
| 52 double i_abs = abs(static_cast<double>(i)); |
| 53 |
| 54 base::TimeTicks ticks_value = base::TimeTicks::FromInternalValue( |
| 55 static_cast<int64>((i / i_abs) * pow(2.0, i_abs))); |
| 56 EXPECT_EQ(webkit::FromWebKitMonotonicTime( |
| 57 webkit::ToWebKitMonotonicTime(ticks_value)), |
| 58 ticks_value); |
| 59 |
| 60 double double_value = (i / i_abs) * pow(2.0, i_abs) / 1e6; |
| 61 EXPECT_EQ(webkit::ToWebKitMonotonicTime( |
| 62 webkit::FromWebKitMonotonicTime(double_value)), |
| 63 double_value); |
| 64 } |
| 65 } |
OLD | NEW |