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Add option to skip forward to the generator interface

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This commit is contained in:
Martin Hořeňovský
2025-10-06 11:47:38 +02:00
parent 363ca5af18
commit fecf606a05
22 changed files with 353 additions and 19 deletions
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20
tests/SelfTest/IntrospectiveTests/GeneratorsImpl.tests.cpp
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@@ -85,7 +85,7 @@ TEST_CASE("Generators internals", "[generators][internals]") {
filter([](int) { return false; }, values({ 1, 2, 3 })),
Catch::GeneratorException);
}
// Non-trivial usage
SECTION("Out-of-line predicates are copied into the generator") {
auto evilNumber = Catch::Detail::make_unique<int>(2);
@@ -586,3 +586,21 @@ TEST_CASE("from_range(container) supports ADL begin/end and arrays", "[generator
}
}
TEST_CASE( "Generators can be skipped forward", "[generators]" ) {
auto generator = Catch::Generators::FixedValuesGenerator<int>( { 0, 1, 2, 3, 4, 5 } );
REQUIRE( generator.currentElementIndex() == 0 );
generator.skipToNthElement( 3 );
REQUIRE( generator.currentElementIndex() == 3 );
REQUIRE( generator.get() == 3 );
generator.skipToNthElement( 5 );
REQUIRE( generator.currentElementIndex() == 5 );
REQUIRE( generator.get() == 5 );
// Backwards
REQUIRE_THROWS( generator.skipToNthElement( 3 ) );
// Past the end
REQUIRE_THROWS( generator.skipToNthElement( 6 ) );
}