mirror of
https://github.com/SerenityOS/serenity
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c70f45ff44
This commit moves the length calculations out to be directly on the StringView users. This is an important step towards the goal of removing StringView(char const*), as it moves the responsibility of calculating the size of the string to the user of the StringView (which will prevent naive uses causing OOB access).
122 lines
2.5 KiB
C++
122 lines
2.5 KiB
C++
/*
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* Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/StringView.h>
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#include <LibTest/TestCase.h>
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#include <time.h>
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auto const expected_epoch = "Thu Jan 1 00:00:00 1970\n"sv;
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class TimeZoneGuard {
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public:
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TimeZoneGuard()
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: m_tz(getenv("TZ"))
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{
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}
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explicit TimeZoneGuard(char const* tz)
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: m_tz(getenv("TZ"))
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{
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setenv("TZ", tz, 1);
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}
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~TimeZoneGuard()
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{
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if (m_tz)
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setenv("TZ", m_tz, 1);
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else
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unsetenv("TZ");
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}
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private:
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char const* m_tz { nullptr };
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};
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TEST_CASE(asctime)
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{
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TimeZoneGuard guard("UTC");
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time_t epoch = 0;
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auto result = asctime(localtime(&epoch));
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EXPECT_EQ(expected_epoch, StringView(result, strlen(result)));
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}
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TEST_CASE(asctime_r)
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{
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TimeZoneGuard guard("UTC");
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char buffer[26] {};
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time_t epoch = 0;
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auto result = asctime_r(localtime(&epoch), buffer);
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EXPECT_EQ(expected_epoch, StringView(result, strlen(result)));
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}
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TEST_CASE(ctime)
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{
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TimeZoneGuard guard("UTC");
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time_t epoch = 0;
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auto result = ctime(&epoch);
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EXPECT_EQ(expected_epoch, StringView(result, strlen(result)));
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}
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TEST_CASE(ctime_r)
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{
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TimeZoneGuard guard("UTC");
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char buffer[26] {};
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time_t epoch = 0;
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auto result = ctime_r(&epoch, buffer);
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EXPECT_EQ(expected_epoch, StringView(result, strlen(result)));
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}
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TEST_CASE(tzset)
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{
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TimeZoneGuard guard;
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auto set_tz = [](char const* tz) {
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setenv("TZ", tz, 1);
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tzset();
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};
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set_tz("UTC");
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EXPECT_EQ(timezone, 0);
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EXPECT_EQ(altzone, 0);
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EXPECT_EQ(daylight, 0);
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EXPECT_EQ(tzname[0], "UTC"sv);
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EXPECT_EQ(tzname[1], "UTC"sv);
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set_tz("America/New_York");
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EXPECT_EQ(timezone, 5 * 60 * 60);
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EXPECT_EQ(altzone, 4 * 60 * 60);
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EXPECT_EQ(daylight, 1);
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EXPECT_EQ(tzname[0], "EST"sv);
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EXPECT_EQ(tzname[1], "EDT"sv);
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set_tz("America/Phoenix");
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EXPECT_EQ(timezone, 7 * 60 * 60);
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EXPECT_EQ(altzone, 7 * 60 * 60);
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EXPECT_EQ(daylight, 0);
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EXPECT_EQ(tzname[0], "MST"sv);
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EXPECT_EQ(tzname[1], "MST"sv);
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set_tz("America/Asuncion");
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EXPECT_EQ(timezone, 4 * 60 * 60);
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EXPECT_EQ(altzone, 3 * 60 * 60);
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EXPECT_EQ(daylight, 1);
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EXPECT_EQ(tzname[0], "-04"sv);
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EXPECT_EQ(tzname[1], "-03"sv);
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set_tz("CET");
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EXPECT_EQ(timezone, -1 * 60 * 60);
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EXPECT_EQ(altzone, -2 * 60 * 60);
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EXPECT_EQ(daylight, 1);
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EXPECT_EQ(tzname[0], "CET"sv);
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EXPECT_EQ(tzname[1], "CEST"sv);
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}
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