Question

我正在尝试为使用New-AzureRmDnsRecordSet的脚本编写单元测试。 DnsRecords上的New-AzureRmDnsRecordSet参数验证我传递的Microsoft.Azure.Commands.Dns.DnsRecordBase[]类型是New-AzureRmDnsRecordConfig的返回值。问题是，我似乎没有任何东西可以转换为DnsRecordBase类型。

这是一个显示我的问题的虚拟脚本：

function test-mocking {
  $arecordtype = New-AzureRmDnsRecordConfig -Ipv4Address 1.2.3.4
  New-AzureRmDnsRecordSet -Name "UT" -RecordType A -ResourceGroupName 'RG-UT' -TTL 60 -ZoneName 'zone1' -DnsRecords $arecordtype -Confirm:$False -Overwrite
}

Describe 'test-mocking' {
  Mock New-AzureRmDnsRecordSet { return 'sup' }
  Mock New-AzureRmDnsRecordConfig { return '1.2.3.4' }

  it 'does nothing' {
    test-mocking
    Assert-MockCalled New-AzureRmDnsRecordSet
  }
}

输出：

Describing test-mocking
 [-] does nothing 47ms
   PSInvalidCastException: Cannot convert the "1.2.3.4" value of type "System.String" to type "Microsoft.Azure.Commands.Dns.DnsRecordBase[]".
   ArgumentTransformationMetadataException: Cannot convert the "1.2.3.4" value of type "System.String" to type "Microsoft.Azure.Commands.Dns.DnsRecordBase[]".
   ParameterBindingArgumentTransformationException: Cannot process argument transformation on parameter 'DnsRecords'. Cannot convert the "1.2.3.4" value of type "System.String" to type "Microsoft.Azure.Commands.Dns.DnsRecordBase[]".
   at test-mocking, C:\Temp\testMock.ps1: line 3
   at <ScriptBlock>, C:\Temp\testMock.ps1: line 11

我已经尝试了一切代替＆＃34; 1.2.3.4＆＃34; ...整数，字符串，Hashtable，数组，System.Object，$null

我也无法运行New-AzureRmDnsRecordConfig来获取真实对象，因为该命令行开关需要我运行Login-AzureRmAccount。这是一个更大的脚本的一部分，我真的只是试图模拟这些来测试脚本中的其他内容。

我尝试使用Pester的新CMDLET New-MockObject但我收到此错误：

[-] does nothing 110ms
    MemberAccessException: Cannot create an abstract class.
    MethodInvocationException: Exception calling "GetUninitializedObject" with "1" argument(s): "Cannot create an abstract class."
    at New-MockObject, C:\Program Files\WindowsPowerShell\Modules\Pester\4.0.6\Functions\New-MockObject.ps1: line 22
    at <ScriptBlock>, <No file>: line 1
    at <ScriptBlock>, C:\Program Files\WindowsPowerShell\Modules\Pester\4.0.6\Functions\Mock.ps1: line 1111
    at ExecuteBlock, C:\Program Files\WindowsPowerShell\Modules\Pester\4.0.6\Functions\Mock.ps1: line 1123
    at Invoke-Mock, C:\Program Files\WindowsPowerShell\Modules\Pester\4.0.6\Functions\Mock.ps1: line 966
    at <ScriptBlock><Process>, <No file>: line 119
    at test-mocking, C:\Temp\testMock.ps1: line 2
    at <ScriptBlock>, C:\Temp\testMock.ps1: line 11

代码：

function test-mocking {
  $arecordtype = New-AzureRmDnsRecordConfig -Ipv4Address 1.2.3.4
  New-AzureRmDnsRecordSet -Name "UT" -RecordType A -ResourceGroupName 'RG-UT' -TTL 60 -ZoneName 'zone1' -DnsRecords $arecordtype -Confirm:$False -Overwrite
}

Describe 'test-mocking' {
  Mock New-AzureRmDnsRecordSet { return 'sup' }  
  Mock New-AzureRmDnsRecordConfig { return New-MockObject -Type Microsoft.Azure.Commands.Dns.DnsRecordBase }

  it 'does nothing' {
    test-mocking
    Assert-MockCalled New-AzureRmDnsRecordSet
  }
}

Answer 1

模拟此对象的方法是：

New-MockObject -Type ([Microsoft.Azure.Commands.Dns.DnsRecordSet])

我遇到了同样的问题，发现了完整的类型 {-3}}查看为-RecordSet参数列出的类型。

更新：如果您可以使用$object.GetType().FullName获取对象类型的实例，则可以更轻松地获取完整类型。例如：

$temp = Get-AzureRmDnsRecordSet -ZoneName "myzone.com" -ResourceGroupName "myResources" -Name "mysite" -RecordType A
$temp.GetType().FullName

这将输出Microsoft.Azure.Commands.Dns.DnsRecordSet

Answer 2

您可以使用New-MockObject模拟所需的对象类型：https://github.com/pester/Pester/wiki/New-MockObject

New-MockObject是一个Pester函数（在Pester 3.4.4中引入）允许你创建＆＃34;假＆＃34;几乎任何类型的对象都可以运行 Pester嘲笑。这些＆＃34;虚假物品＆＃34;让你的模拟返回相同的键入作为模拟将结果传递给实体的函数这是强类型的。

模拟New-AzureRmDnsRecordConfig返回值类型Microsoft.Azure.Commands.Dns.DnsRecordBase []

2 个答案: