Method CheckFourValues

cpp/src/arrow/util/small_vector_test.cc:155–184

  template <size_t N>
  IntVectorType<N> CheckFourValues() {
    IntVectorType<N> ints;
    EXPECT_EQ(ints.size(), 0);
    EXPECT_EQ(ints.capacity(), N);
    EXPECT_EQ(ints.max_size(), Traits::MaxSizeFor(N));
    EXPECT_TRUE(UsesStaticStorage(ints));

    ints.emplace_back(3);
    ints.emplace_back(42);
    EXPECT_EQ(ints.size(), 2);
    EXPECT_EQ(ints.capacity(), N);
    EXPECT_EQ(ints[0], 3);
    EXPECT_EQ(ints[1], 42);
    EXPECT_TRUE(UsesStaticStorage(ints));

    ints.push_back(IntLike(5));
    ints.emplace_back(false);
    EXPECT_EQ(ints.size(), 4);
    EXPECT_EQ(ints[2], 5);
    EXPECT_EQ(ints[3], 0);

    ints[3] = IntLike(8);
    EXPECT_EQ(ints[3], 8);
    EXPECT_EQ(ints.back(), 8);
    ints.front() = IntLike(-1);
    EXPECT_EQ(ints[0], -1);
    EXPECT_EQ(ints.front(), -1);

    return ints;
  }

  void TestBasics() {
    constexpr size_t N = Traits::TestSizeFor(4);