lix/tests/unit/libutil/chunked-vector.cc

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2022-04-22 08:01:10 +00:00
#include "chunked-vector.hh"
#include <gtest/gtest.h>
namespace nix {
TEST(ChunkedVector, InitEmpty) {
auto v = ChunkedVector<int, 2>(100);
ASSERT_EQ(v.size(), 0);
}
TEST(ChunkedVector, GrowsCorrectly) {
auto v = ChunkedVector<int, 2>(100);
for (auto i = 1; i < 20; i++) {
v.add(i);
ASSERT_EQ(v.size(), i);
}
}
TEST(ChunkedVector, AddAndGet) {
auto v = ChunkedVector<int, 2>(100);
for (auto i = 1; i < 20; i++) {
auto [i2, idx] = v.add(i);
auto & i3 = v[idx];
ASSERT_EQ(i, i2);
ASSERT_EQ(&i2, &i3);
}
}
TEST(ChunkedVector, ForEach) {
auto v = ChunkedVector<int, 2>(100);
for (auto i = 1; i < 20; i++) {
v.add(i);
}
int count = 0;
v.forEach([&count](int elt) {
count++;
});
ASSERT_EQ(count, v.size());
}
TEST(ChunkedVector, OverflowOK) {
// Similar to the AddAndGet, but intentionnally use a small
// initial ChunkedVector to force it to overflow
auto v = ChunkedVector<int, 2>(2);
for (auto i = 1; i < 20; i++) {
auto [i2, idx] = v.add(i);
auto & i3 = v[idx];
ASSERT_EQ(i, i2);
ASSERT_EQ(&i2, &i3);
}
}
}