PowerShell - leap, raindrops, reverse-string, two-fer

powershell/two-fer/.exercism/config.json

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+{
+  "blurb": "Create a sentence of the form \"One for X, one for me.\"",
+  "authors": [
+    "gyssels"
+  ],
+  "contributors": [
+    "cmccandless",
+    "kchenery",
+    "sjwarner"
+  ],
+  "files": {
+    "solution": [
+      "TwoFer.ps1"
+    ],
+    "test": [
+      "TwoFer.tests.ps1"
+    ],
+    "example": [
+      ".meta/TwoFer.example.ps1"
+    ]
+  },
+  "source_url": "https://github.com/exercism/problem-specifications/issues/757"
+}

powershell/two-fer/.exercism/metadata.json

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+{"track":"powershell","exercise":"two-fer","id":"ee6acfe67bf6423e8ceab007e73d57ac","url":"https://exercism.org/tracks/powershell/exercises/two-fer","handle":"Xevion","is_requester":true,"auto_approve":false}

powershell/two-fer/.version

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+1

powershell/two-fer/HELP.md

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+# Help
+
+## Running the tests
+
+To run the tests run the command `Invoke-Pester` from within the exercise directory.
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit TwoFer.ps1` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [PowerShell track's documentation](https://exercism.org/docs/tracks/powershell)
+- [Exercism's support channel on gitter](https://gitter.im/exercism/support)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+To get help if you are having trouble, you can use one of the following resources:
+
+- [Powershell Documentation][powershell docs]
+
+[Add more resources]: TODO
+
+[powershell docs]: https://docs.microsoft.com/en-us/powershell/

powershell/two-fer/README.md

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+# Two Fer
+
+Welcome to Two Fer on Exercism's PowerShell Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Instructions
+
+`Two-fer` or `2-fer` is short for two for one. One for you and one for me.
+
+Given a name, return a string with the message:
+
+```text
+One for name, one for me.
+```
+
+Where "name" is the given name.
+
+However, if the name is missing, return the string:
+
+```text
+One for you, one for me.
+```
+
+Here are some examples:
+
+|Name    |String to return
+|:-------|:------------------
+|Alice   |One for Alice, one for me.
+|Bob     |One for Bob, one for me.
+|        |One for you, one for me.
+|Zaphod  |One for Zaphod, one for me.
+
+## Source
+
+### Created by
+
+- @gyssels
+
+### Contributed to by
+
+- @cmccandless
+- @kchenery
+- @sjwarner
+
+### Based on
+
+https://github.com/exercism/problem-specifications/issues/757

powershell/two-fer/TwoFer.ps1

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+Function Get-TwoFer(){
+    <#
+    .SYNOPSIS
+    "Two-fer" is short for two for one. One for you and one for me.
+    
+    .DESCRIPTION
+    If the given name is "Alice", the result should be "One for Alice, one for me."
+    If no name is given, the result should be "One for you, one for me."
+    
+    .PARAMETER Name
+    The name to use.
+    
+    .EXAMPLE
+    Get-TwoFer
+
+    Will return: One for you, one for me
+
+    .EXAMPLE
+    Get-TwoFer -Name Alice
+    
+    Will return: One for Alice, one for me
+    #>
+    [CmdletBinding()]
+    Param(
+        [Parameter(Mandatory=$false, Position=0)]
+        [string]$Name
+    )
+
+    # if ($Name -eq $null -or $Name.Length -eq 0) { $Name = 'you'}
+    if ([string]::IsNullOrEmpty($Name)) { $Name = 'you' }
+    return "One for $($Name), one for me"
+}

powershell/two-fer/TwoFer.tests.ps1

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+BeforeAll {
+    . ".\TwoFer.ps1"
+}
+
+Describe "Get-TwoFer Tests" {
+
+    It "Given <Name> expects <Expected>" -TestCases @(
+        @{ Name = $null; Expected = "One for you, one for me" },
+        @{ Name = ""; Expected = "One for you, one for me" },
+        @{ Name = "Alice"; Expected = "One for Alice, one for me" }
+    ) {
+        Param(
+            $Name, $Expected
+        )
+
+        Get-TwoFer -Name $Name | Should -Be $Expected
+    }
+}