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v/vlib/adt/linked_list_test.v
2021-12-23 18:23:04 +02:00

104 lines
1.8 KiB
V

module adt
fn test_is_empty() {
mut list := LinkedList<int>{}
assert list.is_empty() == true
list.push(1)
assert list.is_empty() == false
}
fn test_len() ? {
mut list := LinkedList<int>{}
assert list.len() == 0
list.push(1)
assert list.len() == 1
list.pop() ?
assert list.len() == 0
}
fn test_first() ? {
mut list := LinkedList<int>{}
list.push(1)
assert list.first() ? == 1
list.push(2)
assert list.first() ? == 1
list = LinkedList<int>{}
list.first() or { return }
assert false
}
fn test_last() ? {
mut list := LinkedList<int>{}
list.push(1)
assert list.last() ? == 1
list.push(2)
assert list.last() ? == 2
list = LinkedList<int>{}
list.last() or { return }
assert false
}
fn test_push() ? {
mut list := LinkedList<int>{}
list.push(1)
assert list.last() ? == 1
list.push(2)
assert list.last() ? == 2
list.push(3)
assert list.last() ? == 3
}
fn test_pop() ? {
mut list := LinkedList<int>{}
list.push(1)
list.push(2)
list.push(3)
assert list.pop() ? == 3
list.push(4)
assert list.pop() ? == 4
assert list.pop() ? == 2
list = LinkedList<int>{}
list.pop() or { return }
assert false
}
fn test_shift() ? {
mut list := LinkedList<int>{}
list.push(1)
list.push(2)
list.push(3)
assert list.shift() ? == 1
list.push(4)
assert list.shift() ? == 2
assert list.shift() ? == 3
list = LinkedList<int>{}
list.shift() or { return }
assert false
}
fn test_insert() ? {
mut list := LinkedList<int>{}
list.push(1)
list.push(2)
list.push(3)
list.insert(1, 111) or { return }
assert true
}
fn test_prepend() ? {
mut list := LinkedList<int>{}
list.push(1)
list.push(2)
list.push(3)
list.prepend(111)
assert list.first() ? == 111
}
fn test_str() ? {
mut list := LinkedList<int>{}
list.push(1)
list.push(2)
list.push(3)
assert list.str() == '[1, 2, 3]'
}