mirror of https://github.com/catchorg/Catch2.git
107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
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// Copyright Catch2 Authors
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.txt or copy at
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// https://www.boost.org/LICENSE_1_0.txt)
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// SPDX-License-Identifier: BSL-1.0
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#include <catch2/catch_test_macros.hpp>
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namespace {
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static bool itDoesThis() { return true; }
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static bool itDoesThat() { return true; }
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// a trivial fixture example to support SCENARIO_METHOD tests
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struct Fixture {
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Fixture(): d_counter( 0 ) {}
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int counter() { return d_counter++; }
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int d_counter;
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};
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}
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SCENARIO("Do that thing with the thing", "[Tags]") {
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GIVEN("This stuff exists") {
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// make stuff exist
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AND_GIVEN("And some assumption") {
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// Validate assumption
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WHEN("I do this") {
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// do this
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THEN("it should do this") {
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REQUIRE(itDoesThis());
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AND_THEN("do that") {
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REQUIRE(itDoesThat());
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}
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}
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}
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}
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}
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}
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SCENARIO( "Vector resizing affects size and capacity",
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"[vector][bdd][size][capacity]" ) {
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GIVEN( "an empty vector" ) {
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std::vector<int> v;
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REQUIRE( v.size() == 0 );
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WHEN( "it is made larger" ) {
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v.resize( 10 );
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THEN( "the size and capacity go up" ) {
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REQUIRE( v.size() == 10 );
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REQUIRE( v.capacity() >= 10 );
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AND_WHEN( "it is made smaller again" ) {
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v.resize( 5 );
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THEN(
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"the size goes down but the capacity stays the same" ) {
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REQUIRE( v.size() == 5 );
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REQUIRE( v.capacity() >= 10 );
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}
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}
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}
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}
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WHEN( "we reserve more space" ) {
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v.reserve( 10 );
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THEN( "The capacity is increased but the size remains the same" ) {
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REQUIRE( v.capacity() >= 10 );
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REQUIRE( v.size() == 0 );
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}
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}
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}
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}
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SCENARIO("This is a really long scenario name to see how the list command deals with wrapping",
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"[very long tags][lots][long][tags][verbose]"
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"[one very long tag name that should cause line wrapping writing out using the list command]"
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"[anotherReallyLongTagNameButThisOneHasNoObviousWrapPointsSoShouldSplitWithinAWordUsingADashCharacter]") {
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GIVEN("A section name that is so long that it cannot fit in a single console width") {
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WHEN("The test headers are printed as part of the normal running of the scenario") {
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THEN("The, deliberately very long and overly verbose (you see what I did there?) section names must wrap, along with an indent") {
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SUCCEED("boo!");
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}
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}
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}
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}
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SCENARIO_METHOD(Fixture,
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"BDD tests requiring Fixtures to provide commonly-accessed data or methods",
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"[bdd][fixtures]") {
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const int before(counter());
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GIVEN("No operations precede me") {
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REQUIRE(before == 0);
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WHEN("We get the count") {
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const int after(counter());
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THEN("Subsequently values are higher") {
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REQUIRE(after > before);
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}
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}
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}
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}
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