catch2/examples/120-Bdd-ScenarioGivenWhenThen.cpp
John Beard 0c722564c3 Examples: remove references to catch_default_main
catch_default_main.hpp was removed in db32550898

The example 000-CatchMain.cpp is no longer compiled, but is still
present in the examples and is still references by other example
files. Remove the file and references to it, as they are confusing.
2022-02-20 13:10:42 +01:00

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C++

// 120-Bdd-ScenarioGivenWhenThen.cpp
// main() provided by linkage with Catch2WithMain
#include <catch2/catch_test_macros.hpp>
SCENARIO( "vectors can be sized and resized", "[vector]" ) {
GIVEN( "A vector with some items" ) {
std::vector<int> v( 5 );
REQUIRE( v.size() == 5 );
REQUIRE( v.capacity() >= 5 );
WHEN( "the size is increased" ) {
v.resize( 10 );
THEN( "the size and capacity change" ) {
REQUIRE( v.size() == 10 );
REQUIRE( v.capacity() >= 10 );
}
}
WHEN( "the size is reduced" ) {
v.resize( 0 );
THEN( "the size changes but not capacity" ) {
REQUIRE( v.size() == 0 );
REQUIRE( v.capacity() >= 5 );
}
}
WHEN( "more capacity is reserved" ) {
v.reserve( 10 );
THEN( "the capacity changes but not the size" ) {
REQUIRE( v.size() == 5 );
REQUIRE( v.capacity() >= 10 );
}
}
WHEN( "less capacity is reserved" ) {
v.reserve( 0 );
THEN( "neither size nor capacity are changed" ) {
REQUIRE( v.size() == 5 );
REQUIRE( v.capacity() >= 5 );
}
}
}
}
// Compile & run:
// - g++ -std=c++11 -Wall -I$(CATCH_SINGLE_INCLUDE) -o 120-Bdd-ScenarioGivenWhenThen 120-Bdd-ScenarioGivenWhenThen.cpp && 120-Bdd-ScenarioGivenWhenThen --success
// - cl -EHsc -I%CATCH_SINGLE_INCLUDE% 120-Bdd-ScenarioGivenWhenThen.cpp && 120-Bdd-ScenarioGivenWhenThen --success
// Expected compact output (all assertions):
//
// prompt> 120-Bdd-ScenarioGivenWhenThen.exe --reporter compact --success
// 120-Bdd-ScenarioGivenWhenThen.cpp:12: passed: v.size() == 5 for: 5 == 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:13: passed: v.capacity() >= 5 for: 5 >= 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:19: passed: v.size() == 10 for: 10 == 10
// 120-Bdd-ScenarioGivenWhenThen.cpp:20: passed: v.capacity() >= 10 for: 10 >= 10
// 120-Bdd-ScenarioGivenWhenThen.cpp:12: passed: v.size() == 5 for: 5 == 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:13: passed: v.capacity() >= 5 for: 5 >= 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:27: passed: v.size() == 0 for: 0 == 0
// 120-Bdd-ScenarioGivenWhenThen.cpp:28: passed: v.capacity() >= 5 for: 5 >= 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:12: passed: v.size() == 5 for: 5 == 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:13: passed: v.capacity() >= 5 for: 5 >= 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:35: passed: v.size() == 5 for: 5 == 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:36: passed: v.capacity() >= 10 for: 10 >= 10
// 120-Bdd-ScenarioGivenWhenThen.cpp:12: passed: v.size() == 5 for: 5 == 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:13: passed: v.capacity() >= 5 for: 5 >= 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:43: passed: v.size() == 5 for: 5 == 5
// 120-Bdd-ScenarioGivenWhenThen.cpp:44: passed: v.capacity() >= 5 for: 5 >= 5
// Passed 1 test case with 16 assertions.