XML Literal being used for a unit test

GivenAValidXmlPerson.vb

Imports System.Text
Imports Microsoft.VisualStudio.TestTools.UnitTesting

<TestClass()>
Public Class GivenAValidXmlPerson

    Private _person As XDocument
    Dim _id As Integer
    Dim _firstName As String
    Dim _lastName As String
    Dim _dob As Date
    Dim _results As MuonLab.Validation.ValidationReport

    <TestInitialize()>
    Public Sub Setup()
        Me._id = 1
        Me._firstName = "Dom"
        Me._lastName = "Finn"
        Me._dob = New DateTime(2000, 1, 1)

        Me._person =
                <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
                <people>
                    <person>
                        <id><%= _id %></id>
                        <firstname><%= _firstName %></firstname>
                        <lastname><%= _lastName %></lastname>
                        <dob><%= _dob %></dob>
                    </person>
                </people>

        Dim validator = New XmlPersonValidator()

        Me._results = validator.Validate(Me._person)

    End Sub

    <TestMethod()>
    Public Sub TheValidatorShouldBeValid()
        Assert.IsTrue(Me._results.IsValid)
    End Sub

End Class