all_items_are_instances_of() [1/4]

template<typename expected_t , typename collection_t >

static void xtd::tunit::collection_valid::all_items_are_instances_of ( const collection_t &  collection )

inlinestatic

Validates that all collection items are of the type supplied or a derived type.

Parameters

value	The object to verify
message	A user message to display if the assertion fails. This message can be seen in the unit test results.
stack_frame	Contains information about current file and current line.

Examples

std::vector<std::ios_base*> a = {&std::cout, &std::cerr, &std::cin};
xtd::tunit::collection_valid::all_items_are_instances_of<std::ios_base*>(a); // test ok.
xtd::tunit::collection_valid::all_items_are_instances_of<std::basic_ostream<char>*>(a); // test fails.