Boost.Chrono模块单元测试示例

161 篇文章 ¥59.90 ¥99.00
本文介绍了如何对Boost.Chrono模块进行单元测试,包括编写被测试的日期差函数,创建测试用例,以及运行和调试测试,确保代码的正确性和可靠性。

Boost.Chrono模块单元测试示例

Boost是一个流行的C++库,其中的Chrono模块提供了高精度计时器和日期时间处理功能。在使用这个模块的过程中,需要进行单元测试以确保函数的正确性。本文将提供一个Boost.Chrono模块单元测试的示例代码。

  1. 编写被测试的函数

首先,我们需要编写一个被测试的函数。以下是一个简单的示例,它将两个日期相减并返回天数。

#include <boost/chrono.hpp>

int days_between(boost::chrono::system_clock::time_point from, boost::chrono::system_clock::time_point to)
{
    auto duration = to - from;
    return boost::chrono::duration_cast<boost::chrono::days>(duration).count();
}
  1. 编写测试用例

接下来,我们需要编写测试用例。测试用例应该测试函数在不同情况下的输出是否正确。以下是一个测试用例的示例。

#include <boost/test/unit_test.hpp>

BOOST_AUTO_TEST_CASE(test_days_between)
{
    // 测试相同日期
    boost::chrono::
以下是find boost的cmakelist代码,我已经安装好了1.74版本的boost需要更改哪些地方 # Find boost # To change the path for boost, you will need to set: # BOOST_ROOT: path to install prefix for boost # Boost_NO_SYSTEM_PATHS: set to true to keep the find script from ignoring BOOST_ROOT if(MSVC) # By default, boost only builds static libraries on windows set(Boost_USE_STATIC_LIBS ON) # only find static libs # If we ever reset above on windows and, ... # If we use Boost shared libs, disable auto linking. # Some libraries, at least Boost Program Options, rely on this to export DLL symbols. if(NOT Boost_USE_STATIC_LIBS) list(APPEND GTSAM_COMPILE_DEFINITIONS_PUBLIC BOOST_ALL_NO_LIB BOOST_ALL_DYN_LINK) endif() # Virtual memory range for PCH exceeded on VS2015 if(MSVC_VERSION LESS 1910) # older than VS2017 list(APPEND GTSAM_COMPILE_OPTIONS_PRIVATE -Zm295) endif() endif() # If building DLLs in MSVC, we need to avoid EIGEN_STATIC_ASSERT() # or explicit instantiation will generate build errors. # See: https://bitbucket.org/gtborg/gtsam/issues/417/fail-to-build-on-msvc-2017 # if(MSVC AND BUILD_SHARED_LIBS) list(APPEND GTSAM_COMPILE_DEFINITIONS_PUBLIC EIGEN_NO_STATIC_ASSERT) endif() # Store these in variables so they are automatically replicated in GTSAMConfig.cmake and such. set(BOOST_FIND_MINIMUM_VERSION 1.43) #before1.43 set(BOOST_FIND_MINIMUM_COMPONENTS serialization system filesystem thread program_options date_time timer chrono regex) find_package(Boost ${BOOST_FIND_MINIMUM_VERSION} COMPONENTS ${BOOST_FIND_MINIMUM_COMPONENTS}) # Required components if(NOT Boost_SERIALIZATION_LIBRARY OR NOT Boost_SYSTEM_LIBRARY OR NOT Boost_FILESYSTEM_LIBRARY OR NOT Boost_THREAD_LIBRARY OR NOT Boost_DATE_TIME_LIBRARY) message(FATAL_ERROR "Missing required Boost components >= v1.43, please install/upgrade Boost or configure your search paths.") endif() # Allow for not using the timer libraries on boost < 1.48 (GTSAM timing code falls back to old timer library) option(GTSAM_DISABLE_NEW_TIMERS "Disables using Boost.chrono for timing" OFF) # JLBC: This was once updated to target-based names (Boost::xxx), but it caused # problems with Boost versions newer than FindBoost.cmake was prepared to handle, # so we downgraded this to classic filenames-based variables, and manually adding # the target_include_directories(xxx ${Boost_INCLUDE_DIR}) set(GTSAM_BOOST_LIBRARIES optimized ${Boost_SERIALIZATION_LIBRARY_RELEASE} ${Boost_SYSTEM_LIBRARY_RELEASE} ${Boost_FILESYSTEM_LIBRARY_RELEASE} ${Boost_THREAD_LIBRARY_RELEASE} ${Boost_DATE_TIME_LIBRARY_RELEASE} ${Boost_REGEX_LIBRARY_RELEASE} debug ${Boost_SERIALIZATION_LIBRARY_DEBUG} ${Boost_SYSTEM_LIBRARY_DEBUG} ${Boost_FILESYSTEM_LIBRARY_DEBUG} ${Boost_THREAD_LIBRARY_DEBUG} ${Boost_DATE_TIME_LIBRARY_DEBUG} ${Boost_REGEX_LIBRARY_DEBUG} ) message(STATUS "GTSAM_BOOST_LIBRARIES: ${GTSAM_BOOST_LIBRARIES}") if (GTSAM_DISABLE_NEW_TIMERS) message("WARNING: GTSAM timing instrumentation manually disabled") list(APPEND GTSAM_COMPILE_DEFINITIONS_PUBLIC DGTSAM_DISABLE_NEW_TIMERS) else() if(Boost_TIMER_LIBRARY) list(APPEND GTSAM_BOOST_LIBRARIES optimized ${Boost_TIMER_LIBRARY_RELEASE} ${Boost_CHRONO_LIBRARY_RELEASE} # debug # ${Boost_TIMER_LIBRARY_DEBUG} # ${Boost_CHRONO_LIBRARY_DEBUG} ) else() list(APPEND GTSAM_BOOST_LIBRARIES rt) # When using the header-only boost timer library, need -lrt message("WARNING: GTSAM timing instrumentation will use the older, less accurate, Boost timer library because boost older than 1.48 was found.") endif() endif() if(NOT (${Boost_VERSION} LESS 105600)) message("Ignoring Boost restriction on optional lvalue assignment from rvalues") list(APPEND GTSAM_COMPILE_DEFINITIONS_PUBLIC BOOST_OPTIONAL_ALLOW_BINDING_TO_RVALUES BOOST_OPTIONAL_CONFIG_ALLOW_BINDING_TO_RVALUES) endif()
08-01
在使用 CMake 构建项目时,若已安装 Boost 1.74 版本,需在 `CMakeLists.txt` 中适配 FindBoost 模块以正确查找并链接该版本的 Boost 库。可以通过指定版本号和所需组件来确保构建系统使用正确的 Boost 版本。 要适配 Boost 1.74,应在 `CMakeLists.txt` 中使用 `find_package` 命令并指定版本号: ```cmake find_package(Boost 1.74 REQUIRED COMPONENTS system filesystem thread) ``` 该命令会查找版本为 1.74 的 Boost,并加载 `system`、`filesystem` 和 `thread` 等组件。如果 Boost 安装路径不在系统默认路径中,可设置 `BOOST_ROOT` 或 `Boost_DIR` 来指定 Boost 的安装目录: ```cmake set(BOOST_ROOT "/path/to/boost_1_74_0") find_package(Boost 1.74 REQUIRED COMPONENTS system filesystem thread) ``` 此外,若 Boost 是通过源码编译安装到自定义路径,CMake 可能无法自动找到 `boost` 头文件和库文件的位置。此时应确保在 `CMake` 命令行中传入 `BOOST_ROOT` 参数,或在 `CMakeLists.txt` 中显式设置该变量,以帮助 CMake 定位 Boost 安装位置[^1]。 如果仅使用 Boost 的头文件(如 `boost/asio.hpp`),可以不链接任何库,但仍需确保 `find_package(Boost ...)` 成功找到 Boost 的头文件路径: ```cmake find_package(Boost 1.74 REQUIRED) ``` 通过 `find_package(Boost ...)` 机制,CMake 会自动处理不同平台下的 Boost 路径差异和库命名规则,提升项目的可移植性。相较之下,直接使用 `target_link_libraries(target PRIVATE boost_system)` 的方式不具备跨平台兼容性,尤其在 Windows 上可能无法正确识别 Boost 库名称或路径。 在验证 Boost 是否正确配置后,可通过构建一个简单的 Boost 示例程序来测试: ```cpp #include <boost/filesystem.hpp> #include <iostream> int main() { boost::filesystem::path p("/usr/local/include/boost"); std::cout << "Boost version: " << BOOST_LIB_VERSION << std::endl; return 0; } ``` 只要 `CMakeLists.txt` 中正确引用了 Boost 并设置了 `include_directories(${Boost_INCLUDE_DIRS})` 和 `target_link_libraries(... ${Boost_LIBRARIES})`,则项目应能顺利编译并运行。
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符  | 博主筛选后可见
 
红包 添加红包
表情包 插入表情
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值