Construtor TestInitializeAttribute

Inicializa uma nova instância da classe TestInitializeAttribute.

Namespace:  Microsoft.VisualStudio.TestTools.UnitTesting
Assembly:  Microsoft.VisualStudio.QualityTools.UnitTestFramework (em Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll)

Sintaxe

'Declaração
Public Sub New
public TestInitializeAttribute()
public:
TestInitializeAttribute()
new : unit -> TestInitializeAttribute
public function TestInitializeAttribute()

Exemplos

O namespace de SampleClassLib contém a classe DivideClass, que por sua vez, contém o método que deseja testar.Este método é chamado DivideMethod().

using System;
using System.Collections.Generic;
using System.Text;

namespace SampleClassLib
{
   public class DivideClass
   {
      public int DivideMethod(int a)
      {
         return 2 / a;
      }
   }
}
Imports System
Imports System.Collections.Generic
Imports System.Text

Namespace SampleClassLib
    Public Class DivideClass
        Public Function DivideMethod(ByVal a As Integer) As Integer
            Return 2 \ a
        End Function
    End Class
End Namespace

No código a seguir, a classe de teste de DivideClassTest contém um método de teste chamado DivideMethodTest.Esse código também contém atributos que controlam a inicialização e a limpeza executado para que o método, classe e assembly.

Em particular, observe o atributo TestInitialize no método Initialize ().

using Microsoft.VisualStudio.TestTools.UnitTesting;
using SampleClassLib;
using System;
using System.IO;
using System.Windows.Forms;

namespace TestNamespace
{
   [TestClass()]
   public class DivideClassTest
   {
      [AssemblyInitialize()]
      public static void AssemblyInit(TestContext context)
      {
         MessageBox.Show("Assembly Init");
         }

      [ClassInitialize()]
      public static void ClassInit(TestContext context)
      {
         MessageBox.Show("ClassInit");
      }

      [TestInitialize()]
      public void Initialize()
      {
         MessageBox.Show("TestMethodInit");
      }

      [TestCleanup()]
      public void Cleanup()
      {
         MessageBox.Show("TestMethodCleanup");
      }

      [ClassCleanup()]
      public static void ClassCleanup()
      {
         MessageBox.Show("ClassCleanup");
      }

      [AssemblyCleanup()]
      public static void AssemblyCleanup()
      {
         MessageBox.Show("AssemblyCleanup");
      }

      [TestMethod()]
      [ExpectedException(typeof(System.DivideByZeroException))]
      public void DivideMethodTest()
      {
         DivideClass target = new DivideClass();
         int a = 0; 
         int actual;
         actual = target.DivideMethod(a);
      }
   }
}
Imports Microsoft.VisualStudio.TestTools.UnitTesting
Imports System.Windows.Forms
Imports SCL2 = SampleClassLib2.SampleClassLib
Imports System
Imports System.IO

Namespace TestNamespace

   <TestClass()> _
   Public Class DivideClassTest

      <AssemblyInitialize()> _
      Public Shared Sub AssemblyInit(ByVal context As TestContext)
         MessageBox.Show("Assembly Init")
      End Sub

      <ClassInitialize()> _
      Public Shared Sub ClassInit(ByVal context As TestContext)
         MessageBox.Show("Test Class Init")
      End Sub

      <TestInitialize()> _
      Public Sub Initialize()
         MessageBox.Show("Test Initialize")
      End Sub

      <TestCleanup()> _
      Public Sub Cleanup()
         MessageBox.Show("Test Cleanup")
      End Sub

      <ClassCleanup()> _
      Public Shared Sub ClassCleanup()
         MessageBox.Show("Test Class Cleanup")
      End Sub

      <AssemblyCleanup()> _
      Public Shared Sub AssemblyCleanup()
         MessageBox.Show("Test Assembly Cleanup")
      End Sub

      <TestMethod()> _
      <ExpectedException(GetType(System.DivideByZeroException))> _
      Public Sub DivideMethodTest()
         Dim target As SCL.DivideClass = New SCL.DivideClass
         Dim a As Integer = 0
         Dim actual As Integer
         actual = target.DivideMethod(a)
      End Sub

   End Class
End Namespace

Segurança do .NET Framework

Consulte também

Referência

TestInitializeAttribute Classe

Namespace Microsoft.VisualStudio.TestTools.UnitTesting