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#include <library/cpp/testing/gtest/gtest.h>
#include <library/cpp/yt/containers/non_empty.h>
#include <vector>
#include <string>
namespace NYT {
namespace {
////////////////////////////////////////////////////////////////////////////////
TEST(TNonEmptyTest, ConstructFromNonEmptyVector)
{
std::vector<int> vec = {1, 2, 3};
TNonEmpty<std::vector<int>> nonEmpty(vec);
EXPECT_EQ(nonEmpty.size(), 3u);
EXPECT_EQ(nonEmpty[0], 1);
EXPECT_EQ(nonEmpty[1], 2);
EXPECT_EQ(nonEmpty[2], 3);
}
TEST(TNonEmptyTest, ConstructFromEmptyVectorThrows)
{
#ifdef NDEBUG
GTEST_SKIP() << "Assertions are disabled in release build";
#endif
std::vector<int> vec;
EXPECT_DEATH(
{ TNonEmpty<std::vector<int>> nonEmpty(vec); },
".*"
);
}
TEST(TNonEmptyTest, FrontAndBack)
{
TNonEmpty<std::vector<int>> nonEmpty = {10, 20, 30};
EXPECT_EQ(nonEmpty.front(), 10);
EXPECT_EQ(nonEmpty.back(), 30);
nonEmpty.front() = 100;
nonEmpty.back() = 300;
EXPECT_EQ(nonEmpty[0], 100);
EXPECT_EQ(nonEmpty[2], 300);
}
TEST(TNonEmptyTest, PushBackAndEmplaceBack)
{
TNonEmpty<std::vector<std::string>> nonEmpty = {"hello"};
nonEmpty.push_back("world");
EXPECT_EQ(nonEmpty.size(), 2u);
EXPECT_EQ(nonEmpty[1], "world");
nonEmpty.emplace_back("test");
EXPECT_EQ(nonEmpty.size(), 3u);
EXPECT_EQ(nonEmpty[2], "test");
}
TEST(TNonEmptyTest, PopBackMaintainsNonEmpty)
{
TNonEmpty<std::vector<int>> nonEmpty = {1, 2, 3};
nonEmpty.pop_back();
EXPECT_EQ(nonEmpty.size(), 2u);
nonEmpty.pop_back();
EXPECT_EQ(nonEmpty.size(), 1u);
#ifdef NDEBUG
GTEST_SKIP() << "Assertions are disabled in release build";
#endif
// Cannot pop the last element
EXPECT_DEATH(
{ nonEmpty.pop_back(); },
".*"
);
}
TEST(TNonEmptyTest, ResizeWithAssertion)
{
TNonEmpty<std::vector<int>> nonEmpty = {1, 2, 3};
nonEmpty.resize(5);
EXPECT_EQ(nonEmpty.size(), 5u);
nonEmpty.resize(2, 99);
EXPECT_EQ(nonEmpty.size(), 2u);
#ifdef NDEBUG
GTEST_SKIP() << "Assertions are disabled in release build";
#endif
// Cannot resize to 0
EXPECT_DEATH(
{ nonEmpty.resize(0); },
".*"
);
}
////////////////////////////////////////////////////////////////////////////////
} // namespace
} // namespace NYT
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