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import datatypes as dt
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2021-12-23 16:16:29 +03:00
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fn test_is_empty() {
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2022-11-26 19:23:26 +03:00
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mut stack := dt.Stack[int]{}
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assert stack.is_empty() == true
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stack.push(1)
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assert stack.is_empty() == false
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}
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2022-11-28 11:24:47 +03:00
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fn test_len() {
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mut stack := dt.Stack[int]{}
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assert stack.len() == 0
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stack.push(1)
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assert stack.len() == 1
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stack.pop()!
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assert stack.len() == 0
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}
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fn test_peek() {
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mut stack := dt.Stack[int]{}
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stack.push(1)
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assert stack.peek()! == 1
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stack.push(2)
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assert stack.peek()! == 2
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stack = dt.Stack[int]{}
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stack.peek() or { return }
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assert false
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}
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fn test_push() {
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mut stack := dt.Stack[int]{}
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stack.push(1)
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assert stack.peek()! == 1
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stack.push(2)
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assert stack.peek()! == 2
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stack.push(3)
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assert stack.peek()! == 3
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}
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2022-11-28 11:24:47 +03:00
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fn test_pop() {
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mut stack := dt.Stack[int]{}
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stack.push(1)
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stack.push(2)
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stack.push(3)
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assert stack.pop()! == 3
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stack.push(4)
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assert stack.pop()! == 4
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assert stack.pop()! == 2
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stack = dt.Stack[int]{}
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stack.pop() or { return }
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assert false
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}
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2022-08-25 14:12:39 +03:00
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2022-11-28 11:24:47 +03:00
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fn test_array() {
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mut stack := dt.Stack[int]{}
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stack.push(1)
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stack.push(2)
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assert stack.array() == [1, 2]
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}
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