Implement Kata - Complex Array Filtering

[vexx32]

Describe "Koan(s) You Suggest"

A draft of the kata is available here:

PSKoans/drafts/ComplexArrayFilter.ps1

Lines 1 to 80 in da66f06

	<#
	Master Koan! The Monks of the PowerShell order have become angry, and began to complain
	that the best chores are being given to the favored Monks. In order to prevent the dishonour of
	the angry Monks, we must fix this.
	Write a PowerShell function that takes input of:
	[int[]]$Data,
	[int]$Number
	That takes in a list of less than 100 integers and a number n, and returns that same list but
	with all of the numbers that occur more than n times removed entirely. The returned list should
	retain the same ordering as the origional list. For instance, if data was @(1, 3, 5, 3, 2) and
	$n is 1, the answer would result in a list @(1,5,2) because 3 occurs twice, and thus was removed
	from the list entirely.
	#>
	function Limit-ArrayItems {
	param(
	[int[]]
	$Data,
	[int]
	$Number
	)
	<#
	Fill in the function here to behave as described above,
	to submit the correct output to the
	tests below.
	#>
	}
	Context 'First Test: Arrays' {
	$DataInput = 2, -5, -3, 1, 6, 0, 1, 1, -2, 0, 9, 3, 4, 7, -2, 2, 1, -3, 6, 3, 6, 2, -1, 7, -5,
	-2, 9, 4, 4, 6, 9, 1, 8, 8, -1, 9, 0, 0, 7, 5, -2, 1, 2, -2, 1, -4, 8, 4, -2, 8, 0, 9, 0, 0, 1,
	-1, 8, -4, 4, 3, -1, -2, 6, 3, 7, -5, 8, 3, -4, -1, 8, 8, 2, 8, 5, 8, 8, 5, -3, -1, -3, 0, 5,
	-5, 2, -2, 0, 4, -3, 2, 9, 9, 0, -4, 3, 4, 5, 3, -4, -4, 7, 4, -2, -2, 3, 6, -3, 3, 6, -5, 5,
	-2, 1, 9, 0, 6, 7, 1, -5, 7, -2, 2, 0, 5, -2, 5, 8, 0, 3, 4, 2, 0, -5, 4, 6, -2, 6, -2, -2, 6,
	4, 8, 1, -1, -4, -1, 3, 6, 8, 2, 7, 9, 5, 5, 1, -5, 0, 2, 4, -1, 7, 8, 1, -3, 9, 2, -1, 5, 6,
	-3, 2, 2, 4, 2, 5, -4, -3, -1, -4, 2, 7, -1, 2, -4, 7, -4, -5, 0, 9, -2, -2, -1, 4, -2, -5, 2,
	7, 5, 0, 2, 3, -2, 8, 4, -5, 7, 1, 5, 6, -3, 0, 4, 5, -2, 9, -4, 6, 3, 9, 1, -2, -5, 3, -2, 8,
	7, 1, -2, -5, 1, -5, 2, -2, -2, 1, 5, 6, 4, 8, -4, -4, -1, 3, 4, 8, 6, 7, -2, 3, 7, 1, 4, 4, 4,
	-3, -4, 0, 8, 5, 0, 4, 1, 6, 2, 7, -2, -3, 9, -3, -5, 3, -3, -2, 0, -3, 7, 3, -4, -3, 1, 0, -4,
	-5, 3, -4, 9, 6, -3, -4, 0, -5, 0, -1, -1, 9, -5, 3, -2, -2, 3, -2, 7, 1, 2, 6, 4, -2, -5, 4,
	9, 0, 1, -2, -3, 1, 4, -3, 0, 2, 4, 6, 5, -4, 9, -4, 1, -2, 7, -4, 7, 2, 5, 0, -1, -5, -5, 4, 4,
	-4, 5, 4, -2, 5, 6, 4, 6, 6, 5, 5, 7, 3, 3, 0, 2, 4, 9, 0, 8, 7, 5, -4, -5, 4, 1, 9, 8, 0, 8,
	-4, 5, 9, -5, 3, 5, 4, 2, 1, -3, 9, -3, 5, 2, 7, -2, -1, -1, 2, -3, 4, 4, 2, 2, 3, -2, 4, 6, 0,
	2, 5, 5, 5, 0, 5, 7, -2, 4, -4, -1, -5, 8, 0, -4, 0, 1, 9, 8, 2, 4, 1, -2, -3, 8, 0, 9, -1, 1,
	-4, 4, 0, 4, 1, 9, 3, -1, 7, 0, 4, 7, 0, 1, 2, 4, 7, 8, -3, 5, 7, -5, 3, 2, 0, 3, 1, 1, 8, 2, 1,
	4, 0, 7, 8, 1, 8, 4, 4, 2, 0, 9, 8, 4, 3, 7, -2, 0, 6, -3, 2, 3, -5, 9, 2, -4, -3, 4, 6, 1, -2,
	7, 1, 6, 5, 7, 4, -5, 2, -2, 3, 8, -5, 4, -4, 5, 1, 0, -2, 6, 9, 4, -4, 2, -1, 8, 2, 7, -5, -1,
	3, 5, 1, 3, 4, -4, 8, -5, -3, 5, -3, -1, -4, -2, -5, -4, 7, 5, -2, 6, -1, 5, 3, 7, 6, 8, 7, 2,
	2, 6, 8, 9, 5, 2, 3, 8, 0, -3, -3, -2, 4, 4, 4, -4, 6, -1, 9, -4, -3, -4, 5, 5, 9, 8, -3, 1, 3,
	0, 7, -2, -2, 4, 8, -2, 3, 3, 0, 4, 4, -3, -5, 0, -4, 7, -3, -5, -2, 8, -4, 7, 4, 7, -3, 8, 0,
	6, -2, 1, 3, 5, 6, 8, -2, 6, 9, -1, 2, 5, 1, -5, 8, -4, 3, -2, 3, 5, 0, 5, 8, -5, 6, -2, -5, 3,
	3, 5, 2, -4, 1, 6, 1, 5, 5, -5, -5, 0, 8, 7, -4, 7, 8, 0, -5, 6, -2, -1, -5, 9, 2, -5, 7, -2,
	-3, 8, -5, -4, 8, -1, -1, 6, 4, 4, 8, -1, 7, 7, -4, 9, -5, -4, -4, 2, 9, 0, 6, -2, 7, -4, -1,
	-3, 3, 9, 3, 9, 8, 1, 4, -2, 1, 3, -4, 8, -3, 7, 4, 9, 0, 9, 1, 0, 7, 9, 7, 8, 9, -3, 2, 4, 7,
	-2, -5, 8, 5, 8, -5, 5, 1, -5, -3, 0, 1, 6, 7, 8, -4, 2, 4, 5, -5, 9, -4, -3, 2, -4, 0, 0, 9, 6,
	0, 6, 1, 4, 8, 2, -2, 9, -5, -2, -2, 0, -4, 2, 3, -4, 3, 0, 9, 2, -3, 9, 9, 9, 5, 6, -5, -1, 3,
	-4, 8, 9, 1, -5, -4, -2, 8, -3, 4, -4, -4, 4, 7, -2, 5, -4, 1, 0, 9, 1, 0, 4, -2, -3, 7, 2, -5,
	-3, 9, 2, 0, 5, -5, -5, 7, 4, 3, 9, 5, 6, -1, 5, -2, 2, -4, 4, 4, 4, 2, 4, -5, 1, 0, 9, -3, -2,
	9, 2, 2, 7, 2, -2, 3, 2, 0, 1, -3, -3, -1, -1, -4, -4, -5, 4, 2, 6, -3, 3, 5, 4, -2, 5, 6, 9, 6,
	6, 4, -1, 3, 4, 0, 9, -5, 0, -1, 7, 4, 3, 0, -4, -2, 6, 8, -4, 3, 0, 7, 9, -4, 5, -1, -5, 1, 0,
	-4, 9, 3, -5, 5, 9, -2, 0, -3, 8, -1, 4, 5, 7, -3, 6, 3, 0, -4, -4, 7, 9, 5, 2, 6, 8, 2, 5, 6,
	-3, 2, 7, -4, 5, -4, 3, -2, 8, -5, -1, -4, 5, 6, -4, 5, 7, 2, 5, 7, 8, 5, 3, 6, -3, 5, -1, -4,
	0, 4, -1, -1, 6, 5, -2, 2, 9, -1, -5, 9, 7, -3, 8, 7, 4, -4, 5, 8, 4, 5, 8, -2, 3, 0, 7, -1, 6,
	2, 8, 2, 0, 3, 6, -4, 2, 3, 2, 4, 8, -3, 8, -3, 7, 9, -5, 5, -4, -3, -3, -1, 0, 8, -1
	Describe 'Function' {
	$TestCases = 10, 25, 50, 100 | ForEach-Object {@{Number = $_}}
	It 'should handle a selection of <Number> numbers properly' -TestCases $TestCases {
	param($Number)
	$Data = $DataInput | Select-Object -Skip $Number -First $Number
	Limit-ArrayItems -Data $Data -Number 1
	Limit-ArrayItems -Data $Data -Number 2
	Limit-ArrayItems -Data $Data -Number 3
	}
	}
	}

Context "The Scope of the Koans You Suggest"

Kata needs some work to complete, maybe trim some of the comments and add some intermediate tests to help guide users through the problem.

Context "Additional Information"

One possible solution is available for anyone who takes this work to get some idea of possible ways users might work through the problem, just ping me and I'll get it in a gist or something. Don't wanna spoil it for folks digging through GH history later 😉