1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #include "common/libs/time/monotonic_time.h"
17
18 #include <gtest/gtest.h>
19 #include <algorithm>
20
21 using cuttlefish::time::TimeDifference;
22
23 class MonotonicTimeTest : public ::testing::Test {
24 public:
MonotonicTimeTest()25 MonotonicTimeTest() {}
26 };
27
TEST_F(MonotonicTimeTest,TimeDifferenceAdd1)28 TEST_F(MonotonicTimeTest, TimeDifferenceAdd1) {
29 TimeDifference td1(1, 10, 1);
30 TimeDifference td2(0, 100, 1);
31 EXPECT_EQ((td1+td2).count(), (1)*1000000000 + 110);
32 }
33
TEST_F(MonotonicTimeTest,TimeDifferenceAdd2)34 TEST_F(MonotonicTimeTest, TimeDifferenceAdd2) {
35 TimeDifference td1(10, 1000, 1);
36 TimeDifference td2(100, 10000, 1);
37 EXPECT_EQ((td1+td2).count(), (110L)*1000000000L + 11000L);
38 }
39
TEST_F(MonotonicTimeTest,TimeDifferenceAdd3)40 TEST_F(MonotonicTimeTest, TimeDifferenceAdd3) {
41 int64_t scale = 1000;
42 TimeDifference td1(10, 1000, scale);
43 TimeDifference td2(100, 10000, scale);
44 EXPECT_EQ((td1+td2).count(), ((110L)*1000000000L + 11000L)/scale);
45 }
46
TEST_F(MonotonicTimeTest,TimeDifferenceAdd4)47 TEST_F(MonotonicTimeTest, TimeDifferenceAdd4) {
48 int64_t scale = 1;
49 TimeDifference td1(-10, 1000, scale);
50 TimeDifference td2(100, 10000, scale);
51 EXPECT_EQ((td1+td2).count(), ((90L)*1000000000L + 11000L)/scale);
52 }
53
TEST_F(MonotonicTimeTest,TimeDifferenceAdd5)54 TEST_F(MonotonicTimeTest, TimeDifferenceAdd5) {
55 int64_t scale1 = 1, scale2 = 1000;
56 TimeDifference td1(-10, 1000, scale1);
57 TimeDifference td2(100, 10000, scale2);
58 EXPECT_EQ((td1+td2).count(), ((90L)*1000000000L + 11000L)/std::min(scale1, scale2));
59 }
60
TEST_F(MonotonicTimeTest,TimeDifferenceAdd6)61 TEST_F(MonotonicTimeTest, TimeDifferenceAdd6) {
62 int64_t scale1 = 1000, scale2 = 1000;
63 TimeDifference td1(0, 995, scale1);
64 TimeDifference td2(0, 10, scale2);
65 EXPECT_EQ((td1+td2).count(), (1005L)/std::min(scale1, scale2));
66 }
67
TEST_F(MonotonicTimeTest,TimeDifferenceSub1)68 TEST_F(MonotonicTimeTest, TimeDifferenceSub1) {
69 int64_t scale = 1;
70 TimeDifference td1(10, 1000, scale);
71 TimeDifference td2(100, 10000, scale);
72 EXPECT_EQ((td2-td1).count(), ((90L)*1000000000L + 9000L)/scale);
73 }
74
TEST_F(MonotonicTimeTest,TimeDifferenceSub2)75 TEST_F(MonotonicTimeTest, TimeDifferenceSub2) {
76 int64_t scale = 1;
77 TimeDifference td1(10, 1000, scale);
78 TimeDifference td2(100, 10000, scale);
79 EXPECT_EQ((td1-td2).count(), ((-91L)*1000000000L + 1000000000L - 9000L)/scale);
80 }
81
TEST_F(MonotonicTimeTest,TimeDifferenceSub3)82 TEST_F(MonotonicTimeTest, TimeDifferenceSub3) {
83 int64_t scale1 = 1, scale2 = 1000;
84 TimeDifference td1(-10, 1000, scale1);
85 TimeDifference td2(100, 10000, scale2);
86 EXPECT_EQ((td1-td2).count(), ((-111L)*1000000000L + 1000000000L - 9000L)/std::min(scale1, scale2));
87 }
88
TEST_F(MonotonicTimeTest,TimeDifferenceSub4)89 TEST_F(MonotonicTimeTest, TimeDifferenceSub4) {
90 int64_t scale1 = 1000, scale2 = 1000;
91 TimeDifference td1(0, 995, scale1);
92 TimeDifference td2(0, 10, scale2);
93 EXPECT_EQ((td1-td2).count(), (985L)/std::min(scale1, scale2));
94 }
95
TEST_F(MonotonicTimeTest,TimeDifferenceComp1)96 TEST_F(MonotonicTimeTest, TimeDifferenceComp1) {
97 int64_t scale = 1;
98 TimeDifference td1(10, 10000, scale);
99 TimeDifference td2(100, 10, scale);
100 EXPECT_TRUE((td1 < td2));
101 EXPECT_FALSE(td2 < td1);
102 }
103
TEST_F(MonotonicTimeTest,TimeDifferenceComp2)104 TEST_F(MonotonicTimeTest, TimeDifferenceComp2) {
105 int64_t scale = 1;
106 TimeDifference td1(100, 10000, scale);
107 TimeDifference td2(100, 10, scale);
108 EXPECT_TRUE((td2 < td1));
109 EXPECT_FALSE(td1 < td2);
110 }
111