TestInitializeAttribute 建構函式
初始化 TestInitializeAttribute 類別的新執行個體。
命名空間: Microsoft.VisualStudio.TestTools.UnitTesting
組件: Microsoft.VisualStudio.QualityTools.UnitTestFramework (在 Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll 中)
語法
'宣告
Public Sub New
public TestInitializeAttribute()
public:
TestInitializeAttribute()
new : unit -> TestInitializeAttribute
public function TestInitializeAttribute()
範例
SampleClassLib 命名空間包含 DivideClass 類別,這個類別則包含我們所要測試的方法。這個方法稱為 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
在下列程式碼中,DivideClassTest 測試類別包含稱為 DivideMethodTest 的測試方法。這個程式碼也包含控制方法、類別和組件之初始化及清除執行順序的屬性。
請特別注意 Initialize() 方法上的 TestInitialize 屬性。
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
.NET Framework 安全性
- 完全信任立即呼叫者。這個成員無法供部分信任的程式碼使用。如需詳細資訊,請參閱從部分受信任程式碼使用程式庫。