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queue.test.gr
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module QueueTest
from "queue" include Queue
from "list" include List
// Mutable queue tests
let empty = Queue.make()
assert Queue.isEmpty(empty)
assert Queue.size(empty) == 0
assert Queue.peek(empty) == None
assert Queue.pop(empty) == None
assert Queue.size(empty) == 0
let queue = Queue.make()
Queue.push(1, queue)
Queue.push(2, queue)
Queue.push(3, queue)
assert !Queue.isEmpty(queue)
assert Queue.size(queue) == 3
assert Queue.peek(queue) == Some(1)
assert Queue.pop(queue) == Some(1)
assert Queue.peek(queue) == Some(2)
assert Queue.size(queue) == 2
Queue.push(4, queue)
assert Queue.size(queue) == 3
assert Queue.peek(queue) == Some(2)
let copy = Queue.copy(queue)
ignore(Queue.pop(copy))
assert Queue.size(copy) == 2
assert Queue.size(queue) == 3
Queue.clear(queue)
assert Queue.size(queue) == 0
assert Queue.peek(queue) == None
// test that expansion works
let queue = Queue.make(size=3)
Queue.push(0, queue)
Queue.push(1, queue)
Queue.push(2, queue)
Queue.push(3, queue)
assert Queue.pop(queue) == Some(0)
assert Queue.pop(queue) == Some(1)
assert Queue.pop(queue) == Some(2)
assert Queue.pop(queue) == Some(3)
assert Queue.pop(queue) == None
let queue = Queue.make(size=0)
Queue.push(0, queue)
let queue2 = Queue.make(size=1)
Queue.push(0, queue2)
assert queue == queue2
// Queue.toList
let queue = Queue.make(size=3)
assert Queue.toList(queue) == []
Queue.push(0, queue)
Queue.push(1, queue)
Queue.push(2, queue)
Queue.push(3, queue)
assert Queue.toList(queue) == [0, 1, 2, 3]
ignore(Queue.pop(queue))
assert Queue.toList(queue) == [1, 2, 3]
Queue.push(3, queue)
assert Queue.toList(queue) == [1, 2, 3, 3]
ignore(Queue.pop(queue))
Queue.push(4, queue)
Queue.push(5, queue)
assert Queue.toList(queue) == [2, 3, 3, 4, 5]
// Queue.fromList
let queue = Queue.make(size=0)
assert Queue.fromList([]) == queue
Queue.push(0, queue)
Queue.push(1, queue)
Queue.push(2, queue)
Queue.push(3, queue)
assert Queue.fromList([0, 1, 2, 3]) == queue
// test that the "circular" behavior of the circular queue works as expected
let queue = Queue.make(size=4)
let push = x => () => Queue.push(x, queue)
let pop = () => ignore(Queue.pop(queue))
let actions = [
push(1),
push(2),
push(3),
push(4),
pop,
pop,
pop,
push(5),
push(6),
pop,
pop,
push(7),
push(8),
push(9),
]
List.forEach(action => action(), actions)
assert Queue.size(queue) == 4
assert Queue.peek(queue) == Some(6)
Queue.push(10, queue)
assert Queue.size(queue) == 5
assert Queue.pop(queue) == Some(6)
assert Queue.pop(queue) == Some(7)
assert Queue.pop(queue) == Some(8)
assert Queue.pop(queue) == Some(9)
assert Queue.pop(queue) == Some(10)
assert Queue.pop(queue) == None
// Queue.toArray
let queue1 = Queue.make()
assert Queue.toArray(queue1) == [>]
let queue2 = Queue.make()
Queue.push(1, queue2)
Queue.push(2, queue2)
Queue.push(3, queue2)
Queue.push(4, queue2)
ignore(Queue.pop(queue2))
ignore(Queue.pop(queue2))
Queue.push(5, queue2)
ignore(Queue.pop(queue2))
ignore(Queue.pop(queue2))
ignore(Queue.pop(queue2))
Queue.push(6, queue2)
Queue.push(7, queue2)
Queue.push(8, queue2)
Queue.push(9, queue2)
Queue.push(10, queue2)
Queue.push(11, queue2)
Queue.push(12, queue2)
Queue.push(13, queue2)
Queue.push(14, queue2)
Queue.push(15, queue2)
Queue.push(16, queue2)
Queue.push(17, queue2)
Queue.push(18, queue2)
Queue.push(19, queue2)
assert Queue.toArray(queue2) ==
[> 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
let queue3 = Queue.make()
Queue.push(1, queue3)
Queue.push(2, queue3)
Queue.push(3, queue3)
assert Queue.toArray(queue3) == [> 1, 2, 3]
let queue4 = Queue.copy(queue3)
ignore(Queue.pop(queue4))
assert Queue.toArray(queue4) == [> 2, 3]
// Queue.fromArray
let qa1 = Queue.make(size=8)
Queue.push(1, qa1)
Queue.push(2, qa1)
Queue.push(3, qa1)
Queue.push(4, qa1)
assert Queue.fromArray([> 1, 2, 3, 4]) == qa1
assert Queue.fromArray([>]) == Queue.make(size=16)
// Queue.equal
use Queue.{ (==) }
let queue1 = Queue.make()
let queue2 = Queue.make()
Queue.push(1, queue2)
Queue.push(2, queue2)
Queue.push(3, queue2)
Queue.push(4, queue2)
ignore(Queue.pop(queue2))
ignore(Queue.pop(queue2))
Queue.push(5, queue2)
ignore(Queue.pop(queue2))
ignore(Queue.pop(queue2))
ignore(Queue.pop(queue2))
Queue.push(6, queue2)
Queue.push(7, queue2)
Queue.push(8, queue2)
Queue.push(9, queue2)
Queue.push(10, queue2)
Queue.push(11, queue2)
Queue.push(12, queue2)
Queue.push(13, queue2)
Queue.push(14, queue2)
Queue.push(15, queue2)
Queue.push(16, queue2)
Queue.push(17, queue2)
Queue.push(18, queue2)
Queue.push(19, queue2)
let queue3 = Queue.make()
Queue.push(1, queue3)
Queue.push(2, queue3)
Queue.push(3, queue3)
let queue4 = Queue.copy(queue3)
ignore(Queue.pop(queue4))
let queue5 = Queue.make()
Queue.push(6, queue5)
Queue.push(7, queue5)
Queue.push(8, queue5)
Queue.push(9, queue5)
Queue.push(10, queue5)
Queue.push(11, queue5)
Queue.push(12, queue5)
Queue.push(13, queue5)
Queue.push(14, queue5)
Queue.push(15, queue5)
Queue.push(16, queue5)
Queue.push(17, queue5)
Queue.push(18, queue5)
Queue.push(19, queue5)
assert queue2 == queue5
let queue6 = Queue.make()
Queue.push(1, queue6)
Queue.push(2, queue6)
Queue.push(3, queue6)
assert queue3 == queue6
let queue7 = Queue.make()
Queue.push(2, queue7)
Queue.push(3, queue7)
assert queue4 == queue7
let queue8 = Queue.make()
Queue.push(1, queue8)
ignore(Queue.pop(queue8))
assert queue8 == queue1
assert !(queue2 == queue3)
assert !(queue5 == queue6)
use Pervasives.{ (==) }
module Immutable {
use Queue.{ module Immutable as Queue }
// 1 <- 2 <- 3
let sampleQueue = Queue.push(3, Queue.push(2, Queue.push(1, Queue.empty)))
// Queue.isEmpty
assert Queue.isEmpty(Queue.empty)
assert !Queue.isEmpty(sampleQueue)
// Queue.peek
assert Queue.peek(Queue.empty) == None
assert Queue.peek(sampleQueue) == Some(1)
// Queue.push
assert Queue.peek(Queue.push(1, Queue.empty)) == Some(1)
assert Queue.peek(Queue.push(4, sampleQueue)) == Some(1)
// Queue.pop
assert Queue.isEmpty(Queue.pop(Queue.empty))
assert Queue.isEmpty(Queue.pop(Queue.push(1, Queue.empty)))
assert Queue.isEmpty(Queue.pop(Queue.pop(Queue.pop(sampleQueue))))
assert Queue.peek(Queue.pop(sampleQueue)) == Some(2)
assert Queue.peek(Queue.pop(Queue.push(4, Queue.pop(sampleQueue)))) == Some(3)
// Queue.size
assert Queue.size(Queue.empty) == 0
assert Queue.size(sampleQueue) == 3
assert Queue.size(Queue.pop(Queue.pop(sampleQueue))) == 1
// Queue.toList
let sampleQueue = Queue.push(3, Queue.push(2, Queue.push(1, Queue.empty)))
assert Queue.toList(Queue.empty) == []
assert Queue.toList(sampleQueue) == [1, 2, 3]
assert Queue.toList(Queue.pop(sampleQueue)) == [2, 3]
// Queue.fromList
assert Queue.fromList([]) == Queue.empty
let queue = Queue.fromList([1, 2, 3])
assert Queue.peek(sampleQueue) == Queue.peek(queue)
let queue = Queue.pop(queue)
let sampleQueue = Queue.pop(sampleQueue)
assert Queue.peek(sampleQueue) == Queue.peek(queue)
let queue = Queue.pop(queue)
let sampleQueue = Queue.pop(sampleQueue)
assert Queue.peek(sampleQueue) == Queue.peek(queue)
let queue = Queue.pop(queue)
let sampleQueue = Queue.pop(sampleQueue)
assert Queue.peek(sampleQueue) == Queue.peek(queue)
}