104 lines
1.8 KiB
V
104 lines
1.8 KiB
V
module datatypes
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fn test_is_empty() {
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mut list := LinkedList<int>{}
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assert list.is_empty() == true
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list.push(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 := LinkedList<int>{}
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assert list.len() == 0
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list.push(1)
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assert list.len() == 1
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list.pop() ?
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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 := LinkedList<int>{}
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list.push(1)
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assert list.first() ? == 1
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list.push(2)
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assert list.first() ? == 1
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list = LinkedList<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 := LinkedList<int>{}
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list.push(1)
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assert list.last() ? == 1
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list.push(2)
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assert list.last() ? == 2
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list = LinkedList<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 := LinkedList<int>{}
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list.push(1)
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assert list.last() ? == 1
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list.push(2)
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assert list.last() ? == 2
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list.push(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 := LinkedList<int>{}
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list.push(1)
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list.push(2)
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list.push(3)
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assert list.pop() ? == 3
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list.push(4)
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assert list.pop() ? == 4
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assert list.pop() ? == 2
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list = LinkedList<int>{}
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list.pop() or { return }
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assert false
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}
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fn test_shift() ? {
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mut list := LinkedList<int>{}
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list.push(1)
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list.push(2)
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list.push(3)
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assert list.shift() ? == 1
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list.push(4)
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assert list.shift() ? == 2
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assert list.shift() ? == 3
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list = LinkedList<int>{}
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list.shift() 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 := LinkedList<int>{}
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list.push(1)
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list.push(2)
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list.push(3)
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list.insert(1, 111) or { return }
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assert true
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}
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fn test_prepend() ? {
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mut list := LinkedList<int>{}
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list.push(1)
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list.push(2)
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list.push(3)
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list.prepend(111)
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assert list.first() ? == 111
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}
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fn test_str() ? {
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mut list := LinkedList<int>{}
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list.push(1)
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list.push(2)
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list.push(3)
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assert list.str() == '[1, 2, 3]'
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}
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