PowerShell/test/powershell/Modules/Microsoft.PowerShell.Utility/ConvertFrom-Json.Tests.ps1

# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
Describe 'ConvertFrom-Json' -tags "CI" {

    BeforeAll {
        $testCasesWithAndWithoutAsHashtableSwitch = @(
            @{ AsHashtable = $true  }
            @{ AsHashtable = $false }
        )
    }

    It 'Can convert a single-line object with AsHashtable switch set to <AsHashtable>' -TestCase $testCasesWithAndWithoutAsHashtableSwitch {
        Param($AsHashtable)
        ('{"a" : "1"}' | ConvertFrom-Json -AsHashtable:$AsHashtable).a | Should -Be 1
    }

    It 'Can convert one string-per-object with AsHashtable switch set to <AsHashtable>' -TestCase $testCasesWithAndWithoutAsHashtableSwitch {
        Param($AsHashtable)
        $json = @('{"a" : "1"}', '{"a" : "x"}') | ConvertFrom-Json -AsHashtable:$AsHashtable
        $json.Count | Should -Be 2
        $json[1].a | Should -Be 'x'
        if ($AsHashtable)
        {
            $json | Should -BeOfType Hashtable
        }
    }

    It 'Can convert multi-line object with AsHashtable switch set to <AsHashtable>' -TestCase $testCasesWithAndWithoutAsHashtableSwitch {
        Param($AsHashtable)
        $json = @('{"a" :', '"x"}') | ConvertFrom-Json -AsHashtable:$AsHashtable
        $json.a | Should -Be 'x'
        if ($AsHashtable)
        {
            $json | Should -BeOfType Hashtable
        }
    }

    It 'Can convert an object with Newtonsoft.Json metadata properties with AsHashtable switch set to <AsHashtable>' -TestCase $testCasesWithAndWithoutAsHashtableSwitch {
        Param($AsHashtable)
        $id = 13
        $type = 'Calendar.Months.December'
        $ref = 1989

        $json = '{"$id":' + $id + ', "$type":"' + $type + '", "$ref":' + $ref + '}' | ConvertFrom-Json -AsHashtable:$AsHashtable

        $json.'$id' | Should -Be $id
        $json.'$type' | Should -Be $type
        $json.'$ref' | Should -Be $ref

        if ($AsHashtable)
        {
            $json | Should -BeOfType Hashtable
        }
    }
}