161 lines
3.0 KiB
V
161 lines
3.0 KiB
V
module datatypes
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fn test_is_empty() {
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mut list := DoublyLinkedList<int>{}
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assert list.is_empty() == true
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list.push_back(1)
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assert list.is_empty() == false
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}
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fn test_len() ? {
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mut list := DoublyLinkedList<int>{}
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assert list.len() == 0
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list.push_back(1)
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assert list.len() == 1
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list.pop_back()?
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assert list.len() == 0
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}
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fn test_first() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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assert list.first()? == 1
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list.push_back(2)
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assert list.first()? == 1
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list = DoublyLinkedList<int>{}
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list.first() or { return }
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assert false
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}
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fn test_last() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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assert list.last()? == 1
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list.push_back(2)
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assert list.last()? == 2
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list = DoublyLinkedList<int>{}
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list.last() or { return }
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assert false
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}
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fn test_push() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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assert list.last()? == 1
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list.push_back(2)
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assert list.last()? == 2
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list.push_back(3)
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assert list.last()? == 3
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}
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fn test_pop() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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list.push_back(2)
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list.push_back(3)
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assert list.pop_back()? == 3
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list.push_back(4)
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assert list.pop_back()? == 4
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assert list.pop_back()? == 2
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list = DoublyLinkedList<int>{}
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list.pop_back() or { return }
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assert false
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}
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fn test_pop_front() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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list.push_back(2)
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list.push_back(3)
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assert list.pop_front()? == 1
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list.push_back(4)
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assert list.pop_front()? == 2
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assert list.pop_front()? == 3
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list = DoublyLinkedList<int>{}
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list.pop_front() or { return }
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assert false
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}
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fn test_insert() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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list.push_back(2)
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list.push_back(3)
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// [1, 2, 3]
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list.insert(1, 111)?
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// [1, 111, 2, 3]
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list.insert(3, 222)?
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// [1, 111, 2, 222, 3]
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assert list.pop_back()? == 3
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assert list.pop_back()? == 222
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assert list.pop_front()? == 1
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assert list.pop_front()? == 111
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}
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fn test_push_front() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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list.push_back(2)
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list.push_back(3)
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list.push_front(111)
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assert list.first()? == 111
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}
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fn test_delete() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(0)
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list.push_back(1)
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list.push_back(2)
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list.delete(1)
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assert list.first()? == 0
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assert list.last()? == 2
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assert list.len() == 2
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list.delete(1)
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assert list.first()? == 0
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assert list.last()? == 0
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assert list.len() == 1
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list.delete(0)
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assert list.len() == 0
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}
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fn test_iter() ? {
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mut list := DoublyLinkedList<int>{}
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for i := 0; i < 10; i++ {
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list.push_back(i * 10)
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}
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mut count := 0
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for i, v in list {
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count += 1
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assert int(i * 10) == v
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}
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assert count == 10
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// test it gets reset
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count = 0
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for i, v in list {
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count += 1
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assert int(i * 10) == v
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}
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assert count == 10
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}
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fn test_index() ? {
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mut list := DoublyLinkedList<int>{}
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for i := 0; i < 10; i++ {
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list.push_back(i * 10)
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}
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for i := 0; i < 10; i++ {
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assert list.index(i * 10)? == i
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}
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}
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fn test_str() ? {
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mut list := DoublyLinkedList<int>{}
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list.push_back(1)
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list.push_back(2)
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list.push_back(3)
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assert list.str() == '[1, 2, 3]'
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}
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