1 // Copyright 2017 The Abseil Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "absl/time/internal/cctz/include/cctz/time_zone.h"
16
17 #include "gtest/gtest.h"
18 #include "absl/time/internal/test_util.h"
19 #include "absl/time/time.h"
20
21 namespace cctz = absl::time_internal::cctz;
22
23 namespace {
24
TEST(TimeZone,ValueSemantics)25 TEST(TimeZone, ValueSemantics) {
26 absl::TimeZone tz;
27 absl::TimeZone tz2 = tz; // Copy-construct
28 EXPECT_EQ(tz, tz2);
29 tz2 = tz; // Copy-assign
30 EXPECT_EQ(tz, tz2);
31 }
32
TEST(TimeZone,Equality)33 TEST(TimeZone, Equality) {
34 absl::TimeZone a, b;
35 EXPECT_EQ(a, b);
36 EXPECT_EQ(a.name(), b.name());
37
38 absl::TimeZone implicit_utc;
39 absl::TimeZone explicit_utc = absl::UTCTimeZone();
40 EXPECT_EQ(implicit_utc, explicit_utc);
41 EXPECT_EQ(implicit_utc.name(), explicit_utc.name());
42
43 absl::TimeZone la = absl::time_internal::LoadTimeZone("America/Los_Angeles");
44 absl::TimeZone nyc = absl::time_internal::LoadTimeZone("America/New_York");
45 EXPECT_NE(la, nyc);
46 }
47
TEST(TimeZone,CCTZConversion)48 TEST(TimeZone, CCTZConversion) {
49 const cctz::time_zone cz = cctz::utc_time_zone();
50 const absl::TimeZone tz(cz);
51 EXPECT_EQ(cz, cctz::time_zone(tz));
52 }
53
TEST(TimeZone,DefaultTimeZones)54 TEST(TimeZone, DefaultTimeZones) {
55 absl::TimeZone tz;
56 EXPECT_EQ("UTC", absl::TimeZone().name());
57 EXPECT_EQ("UTC", absl::UTCTimeZone().name());
58 }
59
TEST(TimeZone,FixedTimeZone)60 TEST(TimeZone, FixedTimeZone) {
61 const absl::TimeZone tz = absl::FixedTimeZone(123);
62 const cctz::time_zone cz = cctz::fixed_time_zone(cctz::seconds(123));
63 EXPECT_EQ(tz, absl::TimeZone(cz));
64 }
65
TEST(TimeZone,LocalTimeZone)66 TEST(TimeZone, LocalTimeZone) {
67 const absl::TimeZone local_tz = absl::LocalTimeZone();
68 absl::TimeZone tz = absl::time_internal::LoadTimeZone("localtime");
69 EXPECT_EQ(tz, local_tz);
70 }
71
TEST(TimeZone,NamedTimeZones)72 TEST(TimeZone, NamedTimeZones) {
73 absl::TimeZone nyc = absl::time_internal::LoadTimeZone("America/New_York");
74 EXPECT_EQ("America/New_York", nyc.name());
75 absl::TimeZone syd = absl::time_internal::LoadTimeZone("Australia/Sydney");
76 EXPECT_EQ("Australia/Sydney", syd.name());
77 absl::TimeZone fixed = absl::FixedTimeZone((((3 * 60) + 25) * 60) + 45);
78 EXPECT_EQ("Fixed/UTC+03:25:45", fixed.name());
79 }
80
TEST(TimeZone,Failures)81 TEST(TimeZone, Failures) {
82 absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
83 EXPECT_FALSE(LoadTimeZone("Invalid/TimeZone", &tz));
84 EXPECT_EQ(absl::UTCTimeZone(), tz); // guaranteed fallback to UTC
85
86 // Ensures that the load still fails on a subsequent attempt.
87 tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
88 EXPECT_FALSE(LoadTimeZone("Invalid/TimeZone", &tz));
89 EXPECT_EQ(absl::UTCTimeZone(), tz); // guaranteed fallback to UTC
90
91 // Loading an empty string timezone should fail.
92 tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
93 EXPECT_FALSE(LoadTimeZone("", &tz));
94 EXPECT_EQ(absl::UTCTimeZone(), tz); // guaranteed fallback to UTC
95 }
96
97 } // namespace
98