18b35159aSRaman Tenneti //===-- Unittests for gmtime_r --------------------------------------------===// 28b35159aSRaman Tenneti // 38b35159aSRaman Tenneti // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 48b35159aSRaman Tenneti // See https://llvm.org/LICENSE.txt for license information. 58b35159aSRaman Tenneti // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 68b35159aSRaman Tenneti // 78b35159aSRaman Tenneti //===----------------------------------------------------------------------===// 88b35159aSRaman Tenneti 98b35159aSRaman Tenneti #include "src/time/gmtime_r.h" 10*f9c2377fSMichael Jones #include "src/time/time_constants.h" 11af1315c2SSiva Chandra Reddy #include "test/UnitTest/Test.h" 128b35159aSRaman Tenneti #include "test/src/time/TmMatcher.h" 138b35159aSRaman Tenneti 148b35159aSRaman Tenneti // gmtime and gmtime_r share the same code and thus didn't repeat all the tests 158b35159aSRaman Tenneti // from gmtime. Added couple of validation tests. 168b35159aSRaman Tenneti TEST(LlvmLibcGmTimeR, EndOf32BitEpochYear) { 178b35159aSRaman Tenneti // Test for maximum value of a signed 32-bit integer. 188b35159aSRaman Tenneti // Test implementation can encode time for Tue 19 January 2038 03:14:07 UTC. 198b35159aSRaman Tenneti time_t seconds = 0x7FFFFFFF; 208b35159aSRaman Tenneti struct tm tm_data; 218b35159aSRaman Tenneti struct tm *tm_data_ptr; 22b6bc9d72SGuillaume Chatelet tm_data_ptr = LIBC_NAMESPACE::gmtime_r(&seconds, &tm_data); 23*f9c2377fSMichael Jones EXPECT_TM_EQ( 24*f9c2377fSMichael Jones (tm{7, // sec 258b35159aSRaman Tenneti 14, // min 268b35159aSRaman Tenneti 3, // hr 278b35159aSRaman Tenneti 19, // day 288b35159aSRaman Tenneti 0, // tm_mon starts with 0 for Jan 29*f9c2377fSMichael Jones 2038 - LIBC_NAMESPACE::time_constants::TIME_YEAR_BASE, // year 308b35159aSRaman Tenneti 2, // wday 318b35159aSRaman Tenneti 7, // yday 328b35159aSRaman Tenneti 0}), 338b35159aSRaman Tenneti *tm_data_ptr); 348b35159aSRaman Tenneti EXPECT_TM_EQ(*tm_data_ptr, tm_data); 358b35159aSRaman Tenneti } 368b35159aSRaman Tenneti 378b35159aSRaman Tenneti TEST(LlvmLibcGmTimeR, Max64BitYear) { 388b35159aSRaman Tenneti if (sizeof(time_t) == 4) 398b35159aSRaman Tenneti return; 408b35159aSRaman Tenneti // Test for Tue Jan 1 12:50:50 in 2,147,483,647th year. 418b35159aSRaman Tenneti time_t seconds = 67767976202043050; 428b35159aSRaman Tenneti struct tm tm_data; 438b35159aSRaman Tenneti struct tm *tm_data_ptr; 44b6bc9d72SGuillaume Chatelet tm_data_ptr = LIBC_NAMESPACE::gmtime_r(&seconds, &tm_data); 45*f9c2377fSMichael Jones EXPECT_TM_EQ( 46*f9c2377fSMichael Jones (tm{50, // sec 478b35159aSRaman Tenneti 50, // min 488b35159aSRaman Tenneti 12, // hr 498b35159aSRaman Tenneti 1, // day 508b35159aSRaman Tenneti 0, // tm_mon starts with 0 for Jan 51*f9c2377fSMichael Jones 2147483647 - LIBC_NAMESPACE::time_constants::TIME_YEAR_BASE, // year 528b35159aSRaman Tenneti 2, // wday 538b35159aSRaman Tenneti 50, // yday 548b35159aSRaman Tenneti 0}), 558b35159aSRaman Tenneti *tm_data_ptr); 568b35159aSRaman Tenneti EXPECT_TM_EQ(*tm_data_ptr, tm_data); 578b35159aSRaman Tenneti } 58