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Provides parameters for testing output streams. See output test stream section for details on these tests.

This parameter serves no particular purpose within the framework itself. It can be used by test modules relying on boost::test_tools::output_test_stream to implement testing logic. output_test_stream has two modes of operation:

You can use this parameter to switch between these modes, by passing the parameter value to the output_test_stream constructor. The value of the command line parameter is available from the code like this:

bool is_save_pattern_flag_set = boost::unit_test::runtime_config::save_pattern();
Acceptable values

Equivalent to yes when called without any argument.

Environment variable