1 /*
2 * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "api/units/time_delta.h"
12
13 #include <limits>
14
15 #include "test/gtest.h"
16
17 namespace webrtc {
18 namespace test {
TEST(TimeDeltaTest,ConstExpr)19 TEST(TimeDeltaTest, ConstExpr) {
20 constexpr int64_t kValue = -12345;
21 constexpr TimeDelta kTimeDeltaZero = TimeDelta::Zero();
22 constexpr TimeDelta kTimeDeltaPlusInf = TimeDelta::PlusInfinity();
23 constexpr TimeDelta kTimeDeltaMinusInf = TimeDelta::MinusInfinity();
24 static_assert(kTimeDeltaZero.IsZero(), "");
25 static_assert(kTimeDeltaPlusInf.IsPlusInfinity(), "");
26 static_assert(kTimeDeltaMinusInf.IsMinusInfinity(), "");
27 static_assert(kTimeDeltaPlusInf.ms_or(-1) == -1, "");
28
29 static_assert(kTimeDeltaPlusInf > kTimeDeltaZero, "");
30
31 constexpr TimeDelta kTimeDeltaMinutes = TimeDelta::Minutes(kValue);
32 constexpr TimeDelta kTimeDeltaSeconds = TimeDelta::Seconds(kValue);
33 constexpr TimeDelta kTimeDeltaMs = TimeDelta::Millis(kValue);
34 constexpr TimeDelta kTimeDeltaUs = TimeDelta::Micros(kValue);
35
36 static_assert(kTimeDeltaMinutes.seconds_or(0) == kValue * 60, "");
37 static_assert(kTimeDeltaSeconds.seconds_or(0) == kValue, "");
38 static_assert(kTimeDeltaMs.ms_or(0) == kValue, "");
39 static_assert(kTimeDeltaUs.us_or(0) == kValue, "");
40 }
41
TEST(TimeDeltaTest,GetBackSameValues)42 TEST(TimeDeltaTest, GetBackSameValues) {
43 const int64_t kValue = 499;
44 for (int sign = -1; sign <= 1; ++sign) {
45 int64_t value = kValue * sign;
46 EXPECT_EQ(TimeDelta::Millis(value).ms(), value);
47 EXPECT_EQ(TimeDelta::Micros(value).us(), value);
48 EXPECT_EQ(TimeDelta::Seconds(value).seconds(), value);
49 EXPECT_EQ(TimeDelta::Seconds(value).seconds(), value);
50 }
51 EXPECT_EQ(TimeDelta::Zero().us(), 0);
52 }
53
TEST(TimeDeltaTest,GetDifferentPrefix)54 TEST(TimeDeltaTest, GetDifferentPrefix) {
55 const int64_t kValue = 3000000;
56 EXPECT_EQ(TimeDelta::Micros(kValue).seconds(), kValue / 1000000);
57 EXPECT_EQ(TimeDelta::Millis(kValue).seconds(), kValue / 1000);
58 EXPECT_EQ(TimeDelta::Micros(kValue).ms(), kValue / 1000);
59 EXPECT_EQ(TimeDelta::Minutes(kValue / 60).seconds(), kValue);
60
61 EXPECT_EQ(TimeDelta::Millis(kValue).us(), kValue * 1000);
62 EXPECT_EQ(TimeDelta::Seconds(kValue).ms(), kValue * 1000);
63 EXPECT_EQ(TimeDelta::Seconds(kValue).us(), kValue * 1000000);
64 EXPECT_EQ(TimeDelta::Minutes(kValue / 60).seconds(), kValue);
65 }
66
TEST(TimeDeltaTest,IdentityChecks)67 TEST(TimeDeltaTest, IdentityChecks) {
68 const int64_t kValue = 3000;
69 EXPECT_TRUE(TimeDelta::Zero().IsZero());
70 EXPECT_FALSE(TimeDelta::Millis(kValue).IsZero());
71
72 EXPECT_TRUE(TimeDelta::PlusInfinity().IsInfinite());
73 EXPECT_TRUE(TimeDelta::MinusInfinity().IsInfinite());
74 EXPECT_FALSE(TimeDelta::Zero().IsInfinite());
75 EXPECT_FALSE(TimeDelta::Millis(-kValue).IsInfinite());
76 EXPECT_FALSE(TimeDelta::Millis(kValue).IsInfinite());
77
78 EXPECT_FALSE(TimeDelta::PlusInfinity().IsFinite());
79 EXPECT_FALSE(TimeDelta::MinusInfinity().IsFinite());
80 EXPECT_TRUE(TimeDelta::Millis(-kValue).IsFinite());
81 EXPECT_TRUE(TimeDelta::Millis(kValue).IsFinite());
82 EXPECT_TRUE(TimeDelta::Zero().IsFinite());
83
84 EXPECT_TRUE(TimeDelta::PlusInfinity().IsPlusInfinity());
85 EXPECT_FALSE(TimeDelta::MinusInfinity().IsPlusInfinity());
86
87 EXPECT_TRUE(TimeDelta::MinusInfinity().IsMinusInfinity());
88 EXPECT_FALSE(TimeDelta::PlusInfinity().IsMinusInfinity());
89 }
90
TEST(TimeDeltaTest,ComparisonOperators)91 TEST(TimeDeltaTest, ComparisonOperators) {
92 const int64_t kSmall = 450;
93 const int64_t kLarge = 451;
94 const TimeDelta small = TimeDelta::Millis(kSmall);
95 const TimeDelta large = TimeDelta::Millis(kLarge);
96
97 EXPECT_EQ(TimeDelta::Zero(), TimeDelta::Millis(0));
98 EXPECT_EQ(TimeDelta::PlusInfinity(), TimeDelta::PlusInfinity());
99 EXPECT_EQ(small, TimeDelta::Millis(kSmall));
100 EXPECT_LE(small, TimeDelta::Millis(kSmall));
101 EXPECT_GE(small, TimeDelta::Millis(kSmall));
102 EXPECT_NE(small, TimeDelta::Millis(kLarge));
103 EXPECT_LE(small, TimeDelta::Millis(kLarge));
104 EXPECT_LT(small, TimeDelta::Millis(kLarge));
105 EXPECT_GE(large, TimeDelta::Millis(kSmall));
106 EXPECT_GT(large, TimeDelta::Millis(kSmall));
107 EXPECT_LT(TimeDelta::Zero(), small);
108 EXPECT_GT(TimeDelta::Zero(), TimeDelta::Millis(-kSmall));
109 EXPECT_GT(TimeDelta::Zero(), TimeDelta::Millis(-kSmall));
110
111 EXPECT_GT(TimeDelta::PlusInfinity(), large);
112 EXPECT_LT(TimeDelta::MinusInfinity(), TimeDelta::Zero());
113 }
114
TEST(TimeDeltaTest,Clamping)115 TEST(TimeDeltaTest, Clamping) {
116 const TimeDelta upper = TimeDelta::Millis(800);
117 const TimeDelta lower = TimeDelta::Millis(100);
118 const TimeDelta under = TimeDelta::Millis(100);
119 const TimeDelta inside = TimeDelta::Millis(500);
120 const TimeDelta over = TimeDelta::Millis(1000);
121 EXPECT_EQ(under.Clamped(lower, upper), lower);
122 EXPECT_EQ(inside.Clamped(lower, upper), inside);
123 EXPECT_EQ(over.Clamped(lower, upper), upper);
124
125 TimeDelta mutable_delta = lower;
126 mutable_delta.Clamp(lower, upper);
127 EXPECT_EQ(mutable_delta, lower);
128 mutable_delta = inside;
129 mutable_delta.Clamp(lower, upper);
130 EXPECT_EQ(mutable_delta, inside);
131 mutable_delta = over;
132 mutable_delta.Clamp(lower, upper);
133 EXPECT_EQ(mutable_delta, upper);
134 }
135
TEST(TimeDeltaTest,CanBeInititializedFromLargeInt)136 TEST(TimeDeltaTest, CanBeInititializedFromLargeInt) {
137 const int kMaxInt = std::numeric_limits<int>::max();
138 EXPECT_EQ(TimeDelta::Seconds(kMaxInt).us(),
139 static_cast<int64_t>(kMaxInt) * 1000000);
140 EXPECT_EQ(TimeDelta::Millis(kMaxInt).us(),
141 static_cast<int64_t>(kMaxInt) * 1000);
142 }
143
TEST(TimeDeltaTest,ConvertsToAndFromDouble)144 TEST(TimeDeltaTest, ConvertsToAndFromDouble) {
145 const int64_t kMicros = 17017;
146 const double kNanosDouble = kMicros * 1e3;
147 const double kMicrosDouble = kMicros;
148 const double kMillisDouble = kMicros * 1e-3;
149 const double kSecondsDouble = kMillisDouble * 1e-3;
150
151 EXPECT_EQ(TimeDelta::Micros(kMicros).seconds<double>(), kSecondsDouble);
152 EXPECT_EQ(TimeDelta::Seconds(kSecondsDouble).us(), kMicros);
153
154 EXPECT_EQ(TimeDelta::Micros(kMicros).ms<double>(), kMillisDouble);
155 EXPECT_EQ(TimeDelta::Millis(kMillisDouble).us(), kMicros);
156
157 EXPECT_EQ(TimeDelta::Micros(kMicros).us<double>(), kMicrosDouble);
158 EXPECT_EQ(TimeDelta::Micros(kMicrosDouble).us(), kMicros);
159
160 EXPECT_NEAR(TimeDelta::Micros(kMicros).ns<double>(), kNanosDouble, 1);
161
162 const double kPlusInfinity = std::numeric_limits<double>::infinity();
163 const double kMinusInfinity = -kPlusInfinity;
164
165 EXPECT_EQ(TimeDelta::PlusInfinity().seconds<double>(), kPlusInfinity);
166 EXPECT_EQ(TimeDelta::MinusInfinity().seconds<double>(), kMinusInfinity);
167 EXPECT_EQ(TimeDelta::PlusInfinity().ms<double>(), kPlusInfinity);
168 EXPECT_EQ(TimeDelta::MinusInfinity().ms<double>(), kMinusInfinity);
169 EXPECT_EQ(TimeDelta::PlusInfinity().us<double>(), kPlusInfinity);
170 EXPECT_EQ(TimeDelta::MinusInfinity().us<double>(), kMinusInfinity);
171 EXPECT_EQ(TimeDelta::PlusInfinity().ns<double>(), kPlusInfinity);
172 EXPECT_EQ(TimeDelta::MinusInfinity().ns<double>(), kMinusInfinity);
173
174 EXPECT_TRUE(TimeDelta::Seconds(kPlusInfinity).IsPlusInfinity());
175 EXPECT_TRUE(TimeDelta::Seconds(kMinusInfinity).IsMinusInfinity());
176 EXPECT_TRUE(TimeDelta::Millis(kPlusInfinity).IsPlusInfinity());
177 EXPECT_TRUE(TimeDelta::Millis(kMinusInfinity).IsMinusInfinity());
178 EXPECT_TRUE(TimeDelta::Micros(kPlusInfinity).IsPlusInfinity());
179 EXPECT_TRUE(TimeDelta::Micros(kMinusInfinity).IsMinusInfinity());
180 }
181
TEST(TimeDeltaTest,MathOperations)182 TEST(TimeDeltaTest, MathOperations) {
183 const int64_t kValueA = 267;
184 const int64_t kValueB = 450;
185 const TimeDelta delta_a = TimeDelta::Millis(kValueA);
186 const TimeDelta delta_b = TimeDelta::Millis(kValueB);
187 EXPECT_EQ((delta_a + delta_b).ms(), kValueA + kValueB);
188 EXPECT_EQ((delta_a - delta_b).ms(), kValueA - kValueB);
189
190 EXPECT_EQ((delta_b / 10).ms(), kValueB / 10);
191 EXPECT_EQ(delta_b / delta_a, static_cast<double>(kValueB) / kValueA);
192
193 EXPECT_EQ(TimeDelta::Micros(-kValueA).Abs().us(), kValueA);
194 EXPECT_EQ(TimeDelta::Micros(kValueA).Abs().us(), kValueA);
195
196 TimeDelta mutable_delta = TimeDelta::Millis(kValueA);
197 mutable_delta += TimeDelta::Millis(kValueB);
198 EXPECT_EQ(mutable_delta, TimeDelta::Millis(kValueA + kValueB));
199 mutable_delta -= TimeDelta::Millis(kValueB);
200 EXPECT_EQ(mutable_delta, TimeDelta::Millis(kValueA));
201 }
202
TEST(TimeDeltaTest,MultiplyByScalar)203 TEST(TimeDeltaTest, MultiplyByScalar) {
204 const TimeDelta kValue = TimeDelta::Micros(267);
205 const int64_t kInt64 = 450;
206 const int32_t kInt32 = 123;
207 const size_t kUnsignedInt = 125;
208 const double kFloat = 123.0;
209
210 EXPECT_EQ((kValue * kInt64).us(), kValue.us() * kInt64);
211 EXPECT_EQ(kValue * kInt64, kInt64 * kValue);
212
213 EXPECT_EQ((kValue * kInt32).us(), kValue.us() * kInt32);
214 EXPECT_EQ(kValue * kInt32, kInt32 * kValue);
215
216 EXPECT_EQ((kValue * kUnsignedInt).us(), kValue.us() * int64_t{kUnsignedInt});
217 EXPECT_EQ(kValue * kUnsignedInt, kUnsignedInt * kValue);
218
219 EXPECT_DOUBLE_EQ((kValue * kFloat).us(), kValue.us() * kFloat);
220 EXPECT_EQ(kValue * kFloat, kFloat * kValue);
221 }
222
TEST(TimeDeltaTest,InfinityOperations)223 TEST(TimeDeltaTest, InfinityOperations) {
224 const int64_t kValue = 267;
225 const TimeDelta finite = TimeDelta::Millis(kValue);
226 EXPECT_TRUE((TimeDelta::PlusInfinity() + finite).IsPlusInfinity());
227 EXPECT_TRUE((TimeDelta::PlusInfinity() - finite).IsPlusInfinity());
228 EXPECT_TRUE((finite + TimeDelta::PlusInfinity()).IsPlusInfinity());
229 EXPECT_TRUE((finite - TimeDelta::MinusInfinity()).IsPlusInfinity());
230
231 EXPECT_TRUE((TimeDelta::MinusInfinity() + finite).IsMinusInfinity());
232 EXPECT_TRUE((TimeDelta::MinusInfinity() - finite).IsMinusInfinity());
233 EXPECT_TRUE((finite + TimeDelta::MinusInfinity()).IsMinusInfinity());
234 EXPECT_TRUE((finite - TimeDelta::PlusInfinity()).IsMinusInfinity());
235 }
236 } // namespace test
237 } // namespace webrtc
238