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Add a from_range(Container) overload to the generator helpers

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Martin Hořeňovský 2019-10-09 14:51:24 +02:00
parent 1c5749669e
commit c8db4e77c4
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8 changed files with 293 additions and 60 deletions
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29
projects/SelfTest/UsageTests/Generators.tests.cpp
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@ -214,9 +214,15 @@ TEST_CASE("Nested generators and captured variables", "[generators]") {
}
namespace {
size_t call_count = 0;
size_t test_count = 0;
std::vector<int> make_data() {
return { 1, 3, 5, 7, 9, 11 };
}
std::vector<int> make_data_counted() {
++call_count;
return make_data();
}
}
#if defined(__clang__)
@ -225,13 +231,24 @@ namespace {
#endif
TEST_CASE("Copy and then generate a range", "[generators]") {
static auto data = make_data();
SECTION("from var and iterators") {
static auto data = make_data();
// It is important to notice that a generator is only initialized
// **once** per run. What this means is that modifying data will not
// modify the underlying generator.
auto elem = GENERATE_REF(from_range(data.begin(), data.end()));
REQUIRE(elem % 2 == 1);
// It is important to notice that a generator is only initialized
// **once** per run. What this means is that modifying data will not
// modify the underlying generator.
auto elem = GENERATE_REF(from_range(data.begin(), data.end()));
REQUIRE(elem % 2 == 1);
}
SECTION("From a temporary container") {
auto elem = GENERATE(from_range(make_data_counted()));
++test_count;
REQUIRE(elem % 2 == 1);
}
SECTION("Final validation") {
REQUIRE(call_count == 1);
REQUIRE(make_data().size() == test_count);
}
}
#if defined(__clang__)