void test_buffer_back_throws_after_push_pop() {
BoundedBuffer<int> buffer { 5 };
buffer.push(5);
buffer.pop();
ASSERT_THROWS(buffer.back(), std::logic_error);
}
void test_buffer_back_gets_last_element_of_two_pushs() {
BoundedBuffer<int> buffer { 5 };
buffer.push(1);
buffer.push(2);
ASSERT_EQUAL(2, buffer.back());
}
void test_buffer_back_gets_element_of_push() {
BoundedBuffer<int> buffer { 5 };
buffer.push(5);
ASSERT_EQUAL(5, buffer.back());
}
void test_buffer_wrap_around_behavior_back() {
BoundedBuffer<int> buffer { 3 };
std::vector<int> backValues { }, expectedValues { 1, 2, 2, 3, 4, 4, 4, 5, 5, 6, 7, 7, 7 };
buffer.push(1);
backValues.push_back(buffer.back());
buffer.push(2);
backValues.push_back(buffer.back());
buffer.pop();
backValues.push_back(buffer.back());
buffer.push(3);
backValues.push_back(buffer.back());
buffer.push(4);
backValues.push_back(buffer.back());
buffer.pop();
backValues.push_back(buffer.back());
buffer.pop();
backValues.push_back(buffer.back());
buffer.push(5);
backValues.push_back(buffer.back());
buffer.pop();
backValues.push_back(buffer.back());
buffer.push(6);
backValues.push_back(buffer.back());
buffer.push(7);
backValues.push_back(buffer.back());
buffer.pop();
backValues.push_back(buffer.back());
buffer.pop();
backValues.push_back(buffer.back());
ASSERT_EQUAL(expectedValues, backValues);
}
void test_make_bounded_buffer_from_two_rvalue_arguments_second_element_copied() {
MemoryOperationCounter expected{0, 1, true};
MemoryOperationCounter lvalue{};
BoundedBuffer<MemoryOperationCounter> buffer = BoundedBuffer<MemoryOperationCounter>::make_buffer(MemoryOperationCounter{}, lvalue);
ASSERT_EQUAL(expected, buffer.back());
}
void test_make_bounded_buffer_from_two_mixed_arguments_second_element_moved() {
MemoryOperationCounter expected{1, 0, true};
MemoryOperationCounter lvalue{};
BoundedBuffer<MemoryOperationCounter> buffer = BoundedBuffer<MemoryOperationCounter>::make_buffer(lvalue, MemoryOperationCounter{});
ASSERT_EQUAL(expected, buffer.back());
}
