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import unittest
include ../src/stackStack
suite "StackStack":
test "Pop":
var empty = NewStackStack()
check empty[].Pop() == 0
test "Push":
var empty = NewStackStack()
empty[].Push(5)
check empty[].Pop() == 5
test "PopVector":
var empty = NewStackStack()
check empty[].PopVector() == (0, 0)
test "PushVector":
var empty = NewStackStack()
empty[].PushVector((3, 2))
check empty[].PopVector() == (3, 2)
test "Clear":
var empty = NewStackStack()
empty[].Push(3)
empty[].Clear()
check empty[].Pop() == 0
test "Duplicate":
var empty = NewStackStack()
empty[].Clear()
check empty[].Pop() == 0
test "Swap":
var empty = NewStackStack()
empty[].Swap()
check empty[].Pop() == 0
test "Begin":
var empty = NewStackStack()
empty[].Begin((1, 2))
check empty.height == 2
check empty[].Pop() == 0
empty[].Push(5)
empty[].Push(6)
empty[].Push(4)
empty[].Begin((3, 4))
check empty.height == 3
check empty[].Pop() == 6
check empty[].Pop() == 5
check empty[].Pop() == 0
check empty[].Pop() == 0
empty[].Push(7)
empty[].Push(8)
empty[].Push(9)
empty[].Push(2)
empty[].Begin((10, 11))
check empty.height == 4
check empty[].Pop() == 9
check empty[].Pop() == 8
check empty[].Pop() == 0
empty[].Push(13)
empty[].Push(14)
empty[].Push(-2)
empty[].Begin((15, 16))
check empty[].Pop() == 0
test "End":
var empty = NewStackStack()
var v: tuple[x,y: int] = (0, 0)
empty[].Push(1)
check empty[].End(v) == true
check empty.height == 1
check empty[].Pop() == 1
empty[].Push(1)
empty[].Push(2)
empty[].Push(3)
empty[].Push(4)
empty[].Push(2)
v = (5, 6)
empty[].Begin(v)
v = (0, 0)
empty[].Push(2)
check empty[].End(v) == false
check v == (5, 6)
check empty.height == 1
check empty[].End(v) == true
check empty[].Pop() == 4
check empty[].Pop() == 3
check empty[].Pop() == 2
check empty[].Pop() == 1
empty[].Push(1)
empty[].Push(2)
empty[].Push(3)
empty[].Push(4)
empty[].Push(2)
empty[].Begin(v)
empty[].Push(4)
check empty[].End(v) == false
check v == (5, 6)
check empty.height == 1
check empty[].Pop() == 4
check empty[].Pop() == 3
check empty[].Pop() == 0
check empty[].Pop() == 0
check empty[].Pop() == 2
check empty[].Pop() == 1
empty[].Push(1)
empty[].Push(2)
empty[].Push(3)
empty[].Push(4)
empty[].Push(1)
empty[].Begin(v)
empty[].Push(-2)
check empty[].End(v) == false
check v == (5, 6)
check empty.height == 1
check empty[].Pop() == 1
check empty[].Pop() == 0
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