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- [/
- / Copyright (c) 2003 Boost.Test contributors
- /
- / Distributed under the Boost Software License, Version 1.0. (See accompanying
- / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- /]
- [section:entry_point_overview Test module's entry point]
- Typically, every C++ program contains exactly one definition of function `main`: the program's /entry point/.
- When using the __UTF__ you do not have to define one. Function `main` will be generated for you by the framework.
- The only thing you are required to do in case your program consists of more than one translation unit (`cpp` file)
- is to indicate to the framework in which of the files it is supposed to generate function `main`.
- You do it by defining macro __BOOST_TEST_MODULE__ before the inclusion of any of the framework files.
- The value of this macro is used as a name of the [link ref_test_module test module] as well as the
- [link boost_test.tests_organization.test_tree.master_test_suite master test suite].
- The reason for defining function `main` for you is twofold:
- # This allows the __UTF__ to perform some custom [link boost_test.adv_scenarios.test_module_init_overview ['test module initialization]].
- # This prevents you defining `main`, and accidentally forgetting to run all the test (in which case running the program would incorrectly indicate a clean run).
- By default, the test module's entry point is defined with signature:
- ```
- int main(int argc, char* argv[]);
- ```
- It calls [link boost_test.adv_scenarios.test_module_init_overview ['test module initialization]] function, then calls the
- [link boost_test.adv_scenarios.test_module_runner_overview ['test module runner]] and forwards its return value to environment.
- The default entry point is sufficient in most of the cases. Occasionally, a need may arise to declare an entry point with a
- different name or signature. For overriding the definition of the default test module's entry point:
- * [link boost_test.adv_scenarios.single_header_customizations.entry_point see here], for header-only usage variant,
- * [link boost_test.adv_scenarios.static_lib_customizations.entry_point see here], for static library usage variant,
- * [link boost_test.adv_scenarios.shared_lib_customizations.entry_point see here], for shared library usage variant.
- [endsect] [/section:entry_point_overview]
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