442 lines
16 KiB
C++
442 lines
16 KiB
C++
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// Copyright 2017 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <cstdint>
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#include <limits>
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#include <string>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "absl/time/internal/test_util.h"
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#include "absl/time/time.h"
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using testing::HasSubstr;
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namespace {
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// A helper that tests the given format specifier by itself, and with leading
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// and trailing characters. For example: TestFormatSpecifier(t, "%a", "Thu").
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void TestFormatSpecifier(absl::Time t, absl::TimeZone tz,
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const std::string& fmt, const std::string& ans) {
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EXPECT_EQ(ans, absl::FormatTime(fmt, t, tz));
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EXPECT_EQ("xxx " + ans, absl::FormatTime("xxx " + fmt, t, tz));
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EXPECT_EQ(ans + " yyy", absl::FormatTime(fmt + " yyy", t, tz));
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EXPECT_EQ("xxx " + ans + " yyy",
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absl::FormatTime("xxx " + fmt + " yyy", t, tz));
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}
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//
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// Testing FormatTime()
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//
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TEST(FormatTime, Basics) {
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absl::TimeZone tz = absl::UTCTimeZone();
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absl::Time t = absl::FromTimeT(0);
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// Starts with a couple basic edge cases.
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EXPECT_EQ("", absl::FormatTime("", t, tz));
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EXPECT_EQ(" ", absl::FormatTime(" ", t, tz));
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EXPECT_EQ(" ", absl::FormatTime(" ", t, tz));
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EXPECT_EQ("xxx", absl::FormatTime("xxx", t, tz));
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std::string big(128, 'x');
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EXPECT_EQ(big, absl::FormatTime(big, t, tz));
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// Cause the 1024-byte buffer to grow.
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std::string bigger(100000, 'x');
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EXPECT_EQ(bigger, absl::FormatTime(bigger, t, tz));
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t += absl::Hours(13) + absl::Minutes(4) + absl::Seconds(5);
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t += absl::Milliseconds(6) + absl::Microseconds(7) + absl::Nanoseconds(8);
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EXPECT_EQ("1970-01-01", absl::FormatTime("%Y-%m-%d", t, tz));
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EXPECT_EQ("13:04:05", absl::FormatTime("%H:%M:%S", t, tz));
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EXPECT_EQ("13:04:05.006", absl::FormatTime("%H:%M:%E3S", t, tz));
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EXPECT_EQ("13:04:05.006007", absl::FormatTime("%H:%M:%E6S", t, tz));
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EXPECT_EQ("13:04:05.006007008", absl::FormatTime("%H:%M:%E9S", t, tz));
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}
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TEST(FormatTime, LocaleSpecific) {
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const absl::TimeZone tz = absl::UTCTimeZone();
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absl::Time t = absl::FromTimeT(0);
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TestFormatSpecifier(t, tz, "%a", "Thu");
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TestFormatSpecifier(t, tz, "%A", "Thursday");
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TestFormatSpecifier(t, tz, "%b", "Jan");
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TestFormatSpecifier(t, tz, "%B", "January");
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// %c should at least produce the numeric year and time-of-day.
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const std::string s =
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absl::FormatTime("%c", absl::FromTimeT(0), absl::UTCTimeZone());
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EXPECT_THAT(s, HasSubstr("1970"));
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EXPECT_THAT(s, HasSubstr("00:00:00"));
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TestFormatSpecifier(t, tz, "%p", "AM");
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TestFormatSpecifier(t, tz, "%x", "01/01/70");
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TestFormatSpecifier(t, tz, "%X", "00:00:00");
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}
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TEST(FormatTime, ExtendedSeconds) {
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const absl::TimeZone tz = absl::UTCTimeZone();
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// No subseconds.
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absl::Time t = absl::FromTimeT(0) + absl::Seconds(5);
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EXPECT_EQ("05", absl::FormatTime("%E*S", t, tz));
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EXPECT_EQ("05.000000000000000", absl::FormatTime("%E15S", t, tz));
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// With subseconds.
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t += absl::Milliseconds(6) + absl::Microseconds(7) + absl::Nanoseconds(8);
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EXPECT_EQ("05.006007008", absl::FormatTime("%E*S", t, tz));
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EXPECT_EQ("05", absl::FormatTime("%E0S", t, tz));
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EXPECT_EQ("05.006007008000000", absl::FormatTime("%E15S", t, tz));
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// Times before the Unix epoch.
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t = absl::FromUnixMicros(-1);
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EXPECT_EQ("1969-12-31 23:59:59.999999",
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absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz));
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// Here is a "%E*S" case we got wrong for a while. While the first
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// instant below is correctly rendered as "...:07.333304", the second
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// one used to appear as "...:07.33330499999999999".
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t = absl::FromUnixMicros(1395024427333304);
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EXPECT_EQ("2014-03-17 02:47:07.333304",
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absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz));
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t += absl::Microseconds(1);
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EXPECT_EQ("2014-03-17 02:47:07.333305",
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absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz));
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}
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TEST(FormatTime, RFC1123FormatPadsYear) { // locale specific
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absl::TimeZone tz = absl::UTCTimeZone();
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// A year of 77 should be padded to 0077.
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absl::Time t = absl::FromCivil(absl::CivilSecond(77, 6, 28, 9, 8, 7), tz);
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EXPECT_EQ("Mon, 28 Jun 0077 09:08:07 +0000",
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absl::FormatTime(absl::RFC1123_full, t, tz));
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EXPECT_EQ("28 Jun 0077 09:08:07 +0000",
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absl::FormatTime(absl::RFC1123_no_wday, t, tz));
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}
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TEST(FormatTime, InfiniteTime) {
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absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/Los_Angeles");
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// The format and timezone are ignored.
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EXPECT_EQ("infinite-future",
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absl::FormatTime("%H:%M blah", absl::InfiniteFuture(), tz));
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EXPECT_EQ("infinite-past",
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absl::FormatTime("%H:%M blah", absl::InfinitePast(), tz));
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}
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//
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// Testing ParseTime()
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//
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TEST(ParseTime, Basics) {
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absl::Time t = absl::FromTimeT(1234567890);
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std::string err;
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// Simple edge cases.
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EXPECT_TRUE(absl::ParseTime("", "", &t, &err)) << err;
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EXPECT_EQ(absl::UnixEpoch(), t); // everything defaulted
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EXPECT_TRUE(absl::ParseTime(" ", " ", &t, &err)) << err;
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EXPECT_TRUE(absl::ParseTime(" ", " ", &t, &err)) << err;
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EXPECT_TRUE(absl::ParseTime("x", "x", &t, &err)) << err;
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EXPECT_TRUE(absl::ParseTime("xxx", "xxx", &t, &err)) << err;
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EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z",
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"2013-06-28 19:08:09 -0800", &t, &err))
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<< err;
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const auto ci = absl::FixedTimeZone(-8 * 60 * 60).At(t);
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EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs);
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EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
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}
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TEST(ParseTime, NullErrorString) {
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absl::Time t;
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EXPECT_FALSE(absl::ParseTime("%Q", "invalid format", &t, nullptr));
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EXPECT_FALSE(absl::ParseTime("%H", "12 trailing data", &t, nullptr));
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EXPECT_FALSE(
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absl::ParseTime("%H out of range", "42 out of range", &t, nullptr));
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}
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TEST(ParseTime, WithTimeZone) {
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const absl::TimeZone tz =
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absl::time_internal::LoadTimeZone("America/Los_Angeles");
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absl::Time t;
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std::string e;
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// We can parse a string without a UTC offset if we supply a timezone.
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EXPECT_TRUE(
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absl::ParseTime("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &t, &e))
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<< e;
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auto ci = tz.At(t);
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EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs);
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EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
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// But the timezone is ignored when a UTC offset is present.
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EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z",
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"2013-06-28 19:08:09 +0800", tz, &t, &e))
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<< e;
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ci = absl::FixedTimeZone(8 * 60 * 60).At(t);
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EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs);
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EXPECT_EQ(absl::ZeroDuration(), ci.subsecond);
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}
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TEST(ParseTime, ErrorCases) {
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absl::Time t = absl::FromTimeT(0);
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std::string err;
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EXPECT_FALSE(absl::ParseTime("%S", "123", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
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// Can't parse an illegal format specifier.
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err.clear();
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EXPECT_FALSE(absl::ParseTime("%Q", "x", &t, &err)) << err;
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// Exact contents of "err" are platform-dependent because of
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// differences in the strptime implementation between macOS and Linux.
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EXPECT_FALSE(err.empty());
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// Fails because of trailing, unparsed data "blah".
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EXPECT_FALSE(absl::ParseTime("%m-%d", "2-3 blah", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
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// Feb 31 requires normalization.
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EXPECT_FALSE(absl::ParseTime("%m-%d", "2-31", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Out-of-range"));
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// Check that we cannot have spaces in UTC offsets.
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EXPECT_TRUE(absl::ParseTime("%z", "-0203", &t, &err)) << err;
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EXPECT_FALSE(absl::ParseTime("%z", "- 2 3", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_TRUE(absl::ParseTime("%Ez", "-02:03", &t, &err)) << err;
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EXPECT_FALSE(absl::ParseTime("%Ez", "- 2: 3", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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// Check that we reject other malformed UTC offsets.
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EXPECT_FALSE(absl::ParseTime("%Ez", "+-08:00", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%Ez", "-+08:00", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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// Check that we do not accept "-0" in fields that allow zero.
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EXPECT_FALSE(absl::ParseTime("%Y", "-0", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%E4Y", "-0", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%H", "-0", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%M", "-0", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%S", "-0", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%z", "+-000", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%Ez", "+-0:00", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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EXPECT_FALSE(absl::ParseTime("%z", "-00-0", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
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EXPECT_FALSE(absl::ParseTime("%Ez", "-00:-0", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
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}
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TEST(ParseTime, ExtendedSeconds) {
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std::string err;
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absl::Time t;
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// Here is a "%E*S" case we got wrong for a while. The fractional
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// part of the first instant is less than 2^31 and was correctly
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// parsed, while the second (and any subsecond field >=2^31) failed.
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t = absl::UnixEpoch();
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EXPECT_TRUE(absl::ParseTime("%E*S", "0.2147483647", &t, &err)) << err;
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EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) +
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absl::Nanoseconds(1) / 2,
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t);
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t = absl::UnixEpoch();
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EXPECT_TRUE(absl::ParseTime("%E*S", "0.2147483648", &t, &err)) << err;
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EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) +
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absl::Nanoseconds(3) / 4,
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t);
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// We should also be able to specify long strings of digits far
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// beyond the current resolution and have them convert the same way.
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t = absl::UnixEpoch();
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EXPECT_TRUE(absl::ParseTime(
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"%E*S", "0.214748364801234567890123456789012345678901234567890123456789",
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&t, &err))
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<< err;
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EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) +
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absl::Nanoseconds(3) / 4,
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t);
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}
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TEST(ParseTime, ExtendedOffsetErrors) {
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std::string err;
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absl::Time t;
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// %z against +-HHMM.
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EXPECT_FALSE(absl::ParseTime("%z", "-123", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
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// %z against +-HH.
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EXPECT_FALSE(absl::ParseTime("%z", "-1", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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// %Ez against +-HH:MM.
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EXPECT_FALSE(absl::ParseTime("%Ez", "-12:3", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
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// %Ez against +-HHMM.
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EXPECT_FALSE(absl::ParseTime("%Ez", "-123", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Illegal trailing data"));
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// %Ez against +-HH.
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EXPECT_FALSE(absl::ParseTime("%Ez", "-1", &t, &err)) << err;
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EXPECT_THAT(err, HasSubstr("Failed to parse"));
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}
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TEST(ParseTime, InfiniteTime) {
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absl::Time t;
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std::string err;
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EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-future", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfiniteFuture(), t);
|
||
|
|
|
||
|
|
// Surrounding whitespace.
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-future", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfiniteFuture(), t);
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-future ", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfiniteFuture(), t);
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-future ", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfiniteFuture(), t);
|
||
|
|
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-past", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfinitePast(), t);
|
||
|
|
|
||
|
|
// Surrounding whitespace.
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-past", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfinitePast(), t);
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-past ", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfinitePast(), t);
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-past ", &t, &err));
|
||
|
|
EXPECT_EQ(absl::InfinitePast(), t);
|
||
|
|
|
||
|
|
// "infinite-future" as literal string
|
||
|
|
absl::TimeZone tz = absl::UTCTimeZone();
|
||
|
|
EXPECT_TRUE(absl::ParseTime("infinite-future %H:%M", "infinite-future 03:04",
|
||
|
|
&t, &err));
|
||
|
|
EXPECT_NE(absl::InfiniteFuture(), t);
|
||
|
|
EXPECT_EQ(3, tz.At(t).cs.hour());
|
||
|
|
EXPECT_EQ(4, tz.At(t).cs.minute());
|
||
|
|
|
||
|
|
// "infinite-past" as literal string
|
||
|
|
EXPECT_TRUE(
|
||
|
|
absl::ParseTime("infinite-past %H:%M", "infinite-past 03:04", &t, &err));
|
||
|
|
EXPECT_NE(absl::InfinitePast(), t);
|
||
|
|
EXPECT_EQ(3, tz.At(t).cs.hour());
|
||
|
|
EXPECT_EQ(4, tz.At(t).cs.minute());
|
||
|
|
|
||
|
|
// The input doesn't match the format.
|
||
|
|
EXPECT_FALSE(absl::ParseTime("infinite-future %H:%M", "03:04", &t, &err));
|
||
|
|
EXPECT_FALSE(absl::ParseTime("infinite-past %H:%M", "03:04", &t, &err));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(ParseTime, FailsOnUnrepresentableTime) {
|
||
|
|
const absl::TimeZone utc = absl::UTCTimeZone();
|
||
|
|
absl::Time t;
|
||
|
|
EXPECT_FALSE(
|
||
|
|
absl::ParseTime("%Y-%m-%d", "-292277022657-01-27", utc, &t, nullptr));
|
||
|
|
EXPECT_TRUE(
|
||
|
|
absl::ParseTime("%Y-%m-%d", "-292277022657-01-28", utc, &t, nullptr));
|
||
|
|
EXPECT_TRUE(
|
||
|
|
absl::ParseTime("%Y-%m-%d", "292277026596-12-04", utc, &t, nullptr));
|
||
|
|
EXPECT_FALSE(
|
||
|
|
absl::ParseTime("%Y-%m-%d", "292277026596-12-05", utc, &t, nullptr));
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Roundtrip test for FormatTime()/ParseTime().
|
||
|
|
//
|
||
|
|
|
||
|
|
TEST(FormatParse, RoundTrip) {
|
||
|
|
const absl::TimeZone lax =
|
||
|
|
absl::time_internal::LoadTimeZone("America/Los_Angeles");
|
||
|
|
const absl::Time in =
|
||
|
|
absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax);
|
||
|
|
const absl::Duration subseconds = absl::Nanoseconds(654321);
|
||
|
|
std::string err;
|
||
|
|
|
||
|
|
// RFC3339, which renders subseconds.
|
||
|
|
{
|
||
|
|
absl::Time out;
|
||
|
|
const std::string s =
|
||
|
|
absl::FormatTime(absl::RFC3339_full, in + subseconds, lax);
|
||
|
|
EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err))
|
||
|
|
<< s << ": " << err;
|
||
|
|
EXPECT_EQ(in + subseconds, out); // RFC3339_full includes %Ez
|
||
|
|
}
|
||
|
|
|
||
|
|
// RFC1123, which only does whole seconds.
|
||
|
|
{
|
||
|
|
absl::Time out;
|
||
|
|
const std::string s = absl::FormatTime(absl::RFC1123_full, in, lax);
|
||
|
|
EXPECT_TRUE(absl::ParseTime(absl::RFC1123_full, s, &out, &err))
|
||
|
|
<< s << ": " << err;
|
||
|
|
EXPECT_EQ(in, out); // RFC1123_full includes %z
|
||
|
|
}
|
||
|
|
|
||
|
|
// `absl::FormatTime()` falls back to strftime() for "%c", which appears to
|
||
|
|
// work. On Windows, `absl::ParseTime()` falls back to std::get_time() which
|
||
|
|
// appears to fail on "%c" (or at least on the "%c" text produced by
|
||
|
|
// `strftime()`). This makes it fail the round-trip test.
|
||
|
|
//
|
||
|
|
// Under the emscripten compiler `absl::ParseTime() falls back to
|
||
|
|
// `strptime()`, but that ends up using a different definition for "%c"
|
||
|
|
// compared to `strftime()`, also causing the round-trip test to fail
|
||
|
|
// (see https://github.com/kripken/emscripten/pull/7491).
|
||
|
|
#if !defined(_MSC_VER) && !defined(__EMSCRIPTEN__)
|
||
|
|
// Even though we don't know what %c will produce, it should roundtrip,
|
||
|
|
// but only in the 0-offset timezone.
|
||
|
|
{
|
||
|
|
absl::Time out;
|
||
|
|
const std::string s = absl::FormatTime("%c", in, absl::UTCTimeZone());
|
||
|
|
EXPECT_TRUE(absl::ParseTime("%c", s, &out, &err)) << s << ": " << err;
|
||
|
|
EXPECT_EQ(in, out);
|
||
|
|
}
|
||
|
|
#endif // !_MSC_VER && !__EMSCRIPTEN__
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(FormatParse, RoundTripDistantFuture) {
|
||
|
|
const absl::TimeZone tz = absl::UTCTimeZone();
|
||
|
|
const absl::Time in =
|
||
|
|
absl::FromUnixSeconds(std::numeric_limits<int64_t>::max());
|
||
|
|
std::string err;
|
||
|
|
|
||
|
|
absl::Time out;
|
||
|
|
const std::string s = absl::FormatTime(absl::RFC3339_full, in, tz);
|
||
|
|
EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err))
|
||
|
|
<< s << ": " << err;
|
||
|
|
EXPECT_EQ(in, out);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(FormatParse, RoundTripDistantPast) {
|
||
|
|
const absl::TimeZone tz = absl::UTCTimeZone();
|
||
|
|
const absl::Time in =
|
||
|
|
absl::FromUnixSeconds(std::numeric_limits<int64_t>::min());
|
||
|
|
std::string err;
|
||
|
|
|
||
|
|
absl::Time out;
|
||
|
|
const std::string s = absl::FormatTime(absl::RFC3339_full, in, tz);
|
||
|
|
EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err))
|
||
|
|
<< s << ": " << err;
|
||
|
|
EXPECT_EQ(in, out);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace
|