powershell - 难以模拟Invoke-WebRequest的BasicHtmlWebResponseObject

我正在尝试测试PowerShell函数的这一部分:

# post
$Response = Invoke-WebRequest -Method POST -Uri $Uri -Body $Body -ContentType 'application/xml'

# parse Response.Content; return as System.Xml.XmlDocument
[xml]$Response.Content

通过模拟BasicHtmlWebResponseObject返回的Invoke-WebRequest:

Mock Invoke-WebRequest {

    $WebResponse = [System.Net.HttpWebResponse]::new()
    [System.Net.HttpWebResponse].GetField('m_StatusCode', 'NonPublic, Instance').SetValue(
        $WebResponse,
        200,
        'NonPublic,SetField',
        $null,
        (Get-Culture)
    )

    $Content = '<?xml version="1.0" encoding="UTF-8"?><response><control>failure<status></status></control><operation><result><status>failure</status></result></operation></response>'
    $Response = [Microsoft.PowerShell.Commands.BasicHtmlWebResponseObject]::new($WebResponse,$Content)
    return $Response
}

该断言失败，因为我没有正确创建HttpWebResponse或BasicHtmlWebResponseObject:

It "returns the response's Content object" {
    # act
    $Content = Send-Request -Session $Session

    # assert
    Assert-MockCalled Invoke-WebRequest
    $Content | Should -BeOfType [xml]
    $Content.response.control.status | Should -Be 'success'
    $Content.response.operation.result.status | Should -Be 'success'
}

**编辑**

我考虑过使用New-MockObject:

Mock Invoke-WebRequest {
    $Response = New‐MockObject -Type Microsoft.PowerShell.Commands.BasicHtmlWebResponseObject
    $Response.Content = '<?xml version="1.0" encoding="...'
}

但是，Content属性是只读的。

** /编辑**

我想念什么？

最佳答案

一个稍微简单的替代方法可能是将您的invoke-webrequest包装在一个函数中，然后对其进行模拟。例如。

function Get-XmlFromUri
{
    param( $Uri, $Method, $Body )
     $Response = Invoke-WebRequest -Method $Method -Uri $Uri -Body $Body -ContentType 'application/xml’
    [xml]$Response.Content
}

现在，您可以模拟Get-XmlFromUri并仅从硬编码的xml返回System.Xml.XmlDocument对象，这比需要反射调用旋转的BasicHtmlWebResponseObject容易得多。

Mock Get-XmlFromUri {
    [xml] '<?xml version="1.0" encoding="UTF-8"?>
    <response>
        <control><status>success</status></control>
        <operation><result><status>success</status></result></operation>
    </response>'
}

或者，根据您的代码需要它与BasicHtmlWebResponseObject的相似程度，您可以从invoke-webrequest模拟返回一个具有所需属性的哈希表:

Mock Invoke-WebRequest {
    new-object pscustomobject -property @{
        Content = '<?xml version="1.0" encoding="UTF-8"?>
    <response>
        <control><status>success</status></control>
        <operation><result><status>success</status></result></operation>
    </response>’
    }
}

(对代码格式的道歉-当前，凌晨4点在iPhone上打字，一个抱着一个不是很困的婴儿:-S)

关于powershell - 难以模拟Invoke-WebRequest的BasicHtmlWebResponseObject，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/60193524/