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LibC: Ensure most time tests run under UTC
This ensures these tests pass even if the user has changed the system time zone away from UTC.
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1 changed files with 14 additions and 0 deletions
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@ -17,6 +17,12 @@ public:
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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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@ -31,6 +37,8 @@ private:
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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));
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@ -38,6 +46,8 @@ TEST_CASE(asctime)
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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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@ -46,6 +56,8 @@ TEST_CASE(asctime_r)
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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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@ -54,6 +66,8 @@ TEST_CASE(ctime)
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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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