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xo-arena: DArenaVector: add iterator unit tests

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This commit is contained in:
Roland Conybeare 2026-01-06 16:47:00 -05:00
commit 0863ad6a94
1 changed files with 77 additions and 0 deletions
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77
xo-arena/utest/DArenaVector.test.cpp
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@ -221,6 +221,83 @@ namespace xo {
REQUIRE(vec.size() == 1);
REQUIRE(vec[0] == 99.0);
}
TEST_CASE("DArenaVector-iterators", "[arena][DArenaVector]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4096 };
DArenaVector<double> vec = DArenaVector<double>::map(cfg);
vec.push_back(10.0);
vec.push_back(20.0);
vec.push_back(30.0);
// begin/end
REQUIRE(vec.begin() != vec.end());
REQUIRE(vec.end() - vec.begin() == 3);
// iterate with pointer arithmetic
auto it = vec.begin();
REQUIRE(*it == 10.0);
++it;
REQUIRE(*it == 20.0);
++it;
REQUIRE(*it == 30.0);
++it;
REQUIRE(it == vec.end());
// modify through iterator
*vec.begin() = 15.0;
REQUIRE(vec[0] == 15.0);
}
TEST_CASE("DArenaVector-const-iterators", "[arena][DArenaVector]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4096 };
DArenaVector<double> vec = DArenaVector<double>::map(cfg);
vec.push_back(1.0);
vec.push_back(2.0);
vec.push_back(3.0);
const DArenaVector<double> & cvec = vec;
REQUIRE(cvec.cbegin() != cvec.cend());
REQUIRE(cvec.begin() == cvec.cbegin());
REQUIRE(cvec.end() == cvec.cend());
auto it = cvec.cbegin();
REQUIRE(*it == 1.0);
++it;
REQUIRE(*it == 2.0);
}
TEST_CASE("DArenaVector-range-for", "[arena][DArenaVector]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4096 };
DArenaVector<double> vec = DArenaVector<double>::map(cfg);
vec.push_back(1.0);
vec.push_back(2.0);
vec.push_back(3.0);
// read via range-for
double sum = 0.0;
for (double x : vec) {
sum += x;
}
REQUIRE(sum == 6.0);
// modify via range-for
for (double & x : vec) {
x *= 2.0;
}
REQUIRE(vec[0] == 2.0);
REQUIRE(vec[1] == 4.0);
REQUIRE(vec[2] == 6.0);
}
}
}