Classe ValidationRule

Artigo
08/25/2010

Verifica as solicitações retornam respostas HTTP válidas e que o Sumário da resposta corresponde os resultados esperados.Essa classe deve ser herdada.

Namespace: Microsoft.VisualStudio.TestTools.WebTesting
Assembly: Microsoft.VisualStudio.QualityTools.WebTestFramework (em Microsoft.VisualStudio.QualityTools.WebTestFramework.dll)

Sintaxe

Public MustInherit Class ValidationRule

Dim instance As ValidationRule

public abstract class ValidationRule

public ref class ValidationRule abstract

public abstract class ValidationRule

Comentários

Regras de validação escritos por usuário precisam derivar dessa classe.Regras de validação são executadas apenas depois que a solicitação for concluída.

Observações para Inheritors:

Quando você herdar de ValidationRule, você deve substituir o Validate método e RuleName propriedade.

Exemplos

O exemplo de código a seguir mostra como fazer herança da ValidationRule Para criar uma regra que valida a existência de scripts na página da Web.

using System;
using Microsoft.VisualStudio.TestTools.WebTesting;

namespace MyValidationRule
{
    public class ValidatePageContainsScript : ValidationRule
    {
        
        public override string RuleName
        {
            get { return "Validate Script Existence"; }
        }

        public override string RuleDescription
        {
            get { return "Validates that the page has a script."; }
        }

        public override void Validate(object sender, ValidationEventArgs e)
        {
            bool validated = false;
            string foundJS ="";
            string foundVBS = "";

            string message = "Non-valid HTML document";

            if (e.Response.HtmlDocument != null)
            {   // Gets all input tags
                foreach (HtmlTag tag in e.Response.HtmlDocument
                    .GetFilteredHtmlTags(new string[] { "script" }))
                {   // Check type of script for current tag
                    if (tag.GetAttributeValueAsString("type") == "text/JavaScript")
                        foundJS = "Found JavaScript";
                    if (tag.GetAttributeValueAsString("type") == "text/VBScript")
                        foundVBS = "Found VBScript";
                }

                if (foundVBS.Length != 0 || foundJS.Length != 0)
                {
                    validated = true;
                    message = string.Format("{0} {1}", foundJS, foundVBS);
                }
                else
                {
                   message = "No scripts in current page";
                }
            }
            e.IsValid = validated;
            e.Message = message;
        }
    }
}

Imports System
Imports Microsoft.VisualStudio.TestTools.WebTesting

Namespace MyValidationRule
    Public Class ValidatePageContainsScript
        Inherits ValidationRule

        Public Overrides ReadOnly Property RuleName() As String
            Get
                Return "Validate Script Existence"
            End Get
        End Property

        Public Overrides ReadOnly Property RuleDescription() As String
            Get
                Return "Validates that the page has a script"
            End Get
        End Property

        Public Overrides Sub Validate(ByVal sender As Object, _
            ByVal e As ValidationEventArgs)
            Dim validated As Boolean = False
            Dim foundJS As String = String.Empty
            Dim foundVBS As String = String.Empty
            Dim message As String = "Non-valid HTML document"

            If Not e.Response.HtmlDocument Is Nothing Then
                ' Get all input tags
                Dim tag As HtmlTag
                For Each tag In e.Response.HtmlDocument. _
                    GetFilteredHtmlTags(New String() {"script"})
                    ' Check type of script for current tag
                    If tag.GetAttributeValueAsString("type") = "text/JavaScript" _
                        Then
                        foundJS = "Found JavaScript"
                    End If
                    If tag.GetAttributeValueAsString("type") = "text/VBScript" _
                        Then
                        foundVBS = "Found VBScript"
                    End If
                Next

                If Not foundVBS.Length = 0 Or Not foundJS.Length = 0 Then
                    validated = True
                    message = String.Format("{0} {1}", foundJS, foundVBS)
                Else
                    message = "No scripts in current page."
                End If
            End If

            e.IsValid = validated
            e.Message = message

        End Sub
    End Class
End Namespace

Hierarquia de herança

System.Object
  Microsoft.VisualStudio.TestTools.WebTesting.ValidationRule
    Microsoft.VisualStudio.TestTools.WebTesting.Rules.ValidateFormField
    Microsoft.VisualStudio.TestTools.WebTesting.Rules.ValidateResponseUrl
    Microsoft.VisualStudio.TestTools.WebTesting.Rules.ValidationRuleFindText
    Microsoft.VisualStudio.TestTools.WebTesting.Rules.ValidationRuleRequestTime
    Microsoft.VisualStudio.TestTools.WebTesting.Rules.ValidationRuleRequiredAttributeValue
    Microsoft.VisualStudio.TestTools.WebTesting.Rules.ValidationRuleRequiredTag

Acesso thread-safe

Quaisquer membros static (Shared no Visual Basic) públicos deste tipo são thread-safe. Não há garantia de que qualquer membro de instância seja thread-safe.