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Generators now keep track of the index of current element

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This might become potentially useful in the future, when we want
to provide the ability to forward jump generators, to be able to
simply reproduce specific input to a test.

I am not yet sure how it would work, but the basic idea is that
it could be similar to the `-c` switch for selecting specific
`SECTION` in a test case.
This commit is contained in:
Martin Hořeňovský
2022-05-16 11:56:11 +02:00
parent 07bec74096
commit af8b54ecd5
4 changed files with 43 additions and 7 deletions
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11
tests/SelfTest/IntrospectiveTests/GeneratorsImpl.tests.cpp
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@@ -413,3 +413,14 @@ TEST_CASE("GENERATE decays arrays", "[generators][compilation][approvals]") {
auto str = GENERATE("abc", "def", "gh");
STATIC_REQUIRE(std::is_same<decltype(str), const char*>::value);
}
TEST_CASE("Generators count returned elements", "[generators][approvals]") {
auto generator = Catch::Generators::FixedValuesGenerator<int>( { 1, 2, 3 } );
REQUIRE( generator.currentElementIndex() == 0 );
REQUIRE( generator.countedNext() );
REQUIRE( generator.currentElementIndex() == 1 );
REQUIRE( generator.countedNext() );
REQUIRE( generator.currentElementIndex() == 2 );
REQUIRE_FALSE( generator.countedNext() );
REQUIRE( generator.currentElementIndex() == 2 );
}