PowerShell/src/pester-tests/Json.Tests.ps1

$here = Split-Path -Parent $MyInvocation.MyCommand.Path

# While Core PowerShell does not support the JSON cmdlets, a third
# party C# library, [Json.NET](http://www.newtonsoft.com/json), can be
# loaded into PowerShell and used directly.

# http://www.newtonsoft.com/json/help/html/ParsingLINQtoJSON.htm

Describe "Json.NET LINQ Parsing" {
    # load third party Json.NET library
    $path = "tools/Newtonsoft.Json.7.0.1/lib/portable-net45+wp80+win8+wpa81+dnxcore50/Newtonsoft.Json.dll"
    [Microsoft.PowerShell.CoreCLR.AssemblyExtensions]::LoadFrom($path)

    BeforeEach {
	$jsonFile = "$here/assets/TestJson.json"
	$jsonData = (Get-Content $jsonFile | Out-String)
	$json = [Newtonsoft.Json.Linq.JObject]::Parse($jsonData)
    }

    It "Should return data via Item()" {
	[string]$json.Item("Name") | Should Be "Zaphod Beeblebrox"
    }

    It "Should return data via []" {
	[string]$json["Planet"] | Should Be "Betelgeuse"
    }

    It "Should return nested data via Item().Item()" {
	[int]$json.Item("Appendages").Item("Heads") | Should Be 2
    }

    It "Should return nested data via [][]" {
	[int]$json["Appendages"]["Arms"] | Should Be 3
    }

    It "Should return correct array count" {
	$json["Achievements"].Count | Should Be 4
    }

    It "Should return array data via [n]" {
	[string]$json["Achievements"][3] | Should Be "One hoopy frood"
    }
}