[Test-ObjectGraph] Cmdlet does not include individual objects when the ListNode has two or more failing objects

[ykuijs]

When the schema specifies a ListNode and the data contains just one failing object, the output lists that failing object:

Code:

$data = @{
    NonNodeData = @{
        AzureAD = @{
            AuthenticationMethodPolicy = @(
                @{
                    IncorrectProperty1 = 8
                    IncorrectProperty2 = 10
                }
                @{
                    DefaultLength = 8
                    DefaultLifetimeInMinutes = 10
                }
            )
        }
    }
}

$schema = @{
    NonNodeData = @{
        '@Type' = 'PSMapNode'
        AzureAD = @{
            '@Type' = 'PSMapNode'
            AuthenticationMethodPolicy = @(
                @{
                    '@Type' = 'PSMapNode'
                    DefaultLength = @{ '@Type' = 'Int' }
                    DefaultLifetimeInMinutes = @{ '@Type' = 'Int' }
                    Ensure = @{ '@Type' = 'String' }
                    Id = @{ '@Type' = 'String' }
                    IncludeTargets = @(
                        @{
                            '@Type' = 'PSMapNode'
                            Id = @{ '@Type' = 'String' }
                            TargetType = @{ '@Type' = 'String' }
                        }
                    )
                    IsUsableOnce = @{ '@Type' = 'Bool' }
                    MaximumLifetimeInMinutes = @{ '@Type' = 'Int' }
                    MinimumLifetimeInMinutes = @{ '@Type' = 'Int' }
                    State = @{ '@Type' = 'String' }
                }
            )
        }
    }
}

$result = $data | Test-Object $schema
$result

Output:

Path                                              Value                                      Valid Issue
----                                              -----                                      ----- -----
NonNodeData.AzureAD.AuthenticationMethodPolicy[0] @{IncorrectPr…=10;IncorrectPr…=8}           [X]  The following nodes are not accepted: IncorrectPr…, IncorrectPr…
NonNodeData.AzureAD.AuthenticationMethodPolicy    @(@{IncorrectPr…=…;…},@{DefaultLeng…=…;…})  [X]  The following nodes are not accepted: 0
NonNodeData.AzureAD                               @{Authenticat…=@(…)}                        [X]  The following nodes are not accepted: Authenticat…
NonNodeData                                       @{AzureAD=@{Authenticat…=…}}                [X]  The following nodes are not accepted: AzureAD
                                                  @{NonNodeData=@{AzureAD=…}}                 [X]  The following nodes are not accepted: NonNodeData

The first line in the output specifies the NonNodeData.AzureAD.AuthenticationMethodPolicy[0] object which is failing, with the failing parameters in the Issue column.

When specifying two objects that are failing, the code suddenly ignores the individual objects in the output:

Code:

$data = @{
    NonNodeData = @{
        AzureAD = @{
            AuthenticationMethodPolicy = @(
                @{
                    IncorrectProperty1 = 8
                    IncorrectProperty2 = 10
                }
                @{
                    IncorrectProperty1 = 16
                    IncorrectProperty2 = 20
                }
            )
        }
    }
}

$schema = @{
    NonNodeData = @{
        '@Type' = 'PSMapNode'
        AzureAD = @{
            '@Type' = 'PSMapNode'
            AuthenticationMethodPolicy = @(
                @{
                    '@Type' = 'PSMapNode'
                    DefaultLength = @{ '@Type' = 'Int' }
                    DefaultLifetimeInMinutes = @{ '@Type' = 'Int' }
                    Ensure = @{ '@Type' = 'String' }
                    Id = @{ '@Type' = 'String' }
                    IncludeTargets = @(
                        @{
                            '@Type' = 'PSMapNode'
                            Id = @{ '@Type' = 'String' }
                            TargetType = @{ '@Type' = 'String' }
                        }
                    )
                    IsUsableOnce = @{ '@Type' = 'Bool' }
                    MaximumLifetimeInMinutes = @{ '@Type' = 'Int' }
                    MinimumLifetimeInMinutes = @{ '@Type' = 'Int' }
                    State = @{ '@Type' = 'String' }
                }
            )
        }
    }
}

$result = $data | Test-Object $schema
$result

Output:

Path                                           Value                                      Valid Issue
----                                           -----                                      ----- -----
NonNodeData.AzureAD.AuthenticationMethodPolicy @(@{IncorrectPr…=…;…},@{IncorrectPr…=…;…})  [X]  The following nodes are not accepted: 0, 1
NonNodeData.AzureAD                            @{Authenticat…=@(…)}                        [X]  The following nodes are not accepted: Authenticat…
NonNodeData                                    @{AzureAD=@{Authenticat…=…}}                [X]  The following nodes are not accepted: AzureAD

Here I would have expected two additional lines at the top with like this:

```PowerShell
Path                                              Value                                      Valid Issue
----                                              -----                                      ----- -----
NonNodeData.AzureAD.AuthenticationMethodPolicy[1] @{IncorrectPr…=10;IncorrectPr…=8}           [X]  The following nodes are not accepted: IncorrectPr…, IncorrectPr…
NonNodeData.AzureAD.AuthenticationMethodPolicy[0] @{IncorrectPr…=10;IncorrectPr…=8}           [X]  The following nodes are not accepted: IncorrectPr…, IncorrectPr…
NonNodeData.AzureAD.AuthenticationMethodPolicy    @(@{IncorrectPr…=…;…},@{DefaultLeng…=…;…})  [X]  The following nodes are not accepted: 0
NonNodeData.AzureAD                               @{Authenticat…=@(…)}                        [X]  The following nodes are not accepted: Authenticat…
NonNodeData                                       @{AzureAD=@{Authenticat…=…}}                [X]  The following nodes are not accepted: AzureAD
                                                  @{NonNodeData=@{AzureAD=…}}                 [X]  The following nodes are not accepted: NonNodeData

However, when using the -Elaborate parameter, these failing parameters are mentioned in the output, with all other output. So somehow they are filtered when not specifying that parameter.