DataAccessMethod, énumération
Mise à jour : novembre 2007
Spécifie des constantes qui indiquent comment accéder aux lignes de données dans les tests pilotés par des données.
Espace de noms : Microsoft.VisualStudio.TestTools.UnitTesting
Assembly : Microsoft.VisualStudio.QualityTools.UnitTestFramework (dans Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll)
Syntaxe
Public Enumeration DataAccessMethod
Dim instance As DataAccessMethod
public enum DataAccessMethod
public enum class DataAccessMethod
public enum DataAccessMethod
Membres
Exemples
Le code suivant contient la classe et la méthode à tester.
using System;
namespace BankAccountNS
{
public class BankAccount
{
private string custName;
private double bal;
public BankAccount(string customerName, double balance)
{
custName = customerName;
bal = balance;
}
public double Balance
{ get { return bal; } }
public void Debit(double amount)
{
if (amount < 0)
throw new ArgumentOutOfRangeException("amount");
bal -= amount;
}
}
}
Imports System
Namespace BankAccountNS
Public Class BankAccount
Private customerName As String
Private bal As Double
Public Sub New(ByVal customerName2 As String, ByVal balance As Double)
customerName = customerName2
bal = balance
End Sub
Public ReadOnly Property Balance() As Double
Get
Return bal
End Get
End Property
Public Sub Debit(ByVal amount As Double)
If amount < 0 Then
Throw New ArgumentOutOfRangeException("amount")
End If
bal -= amount
End Sub
End Class
End Namespace
Le test suivant réussit. Il utilise la base de données Access sample.mdb qui contient les données suivantes.
Nom |
Solde |
Montant |
---|---|---|
Jorg Bott |
100 |
25 |
Pedro Ruivo |
70 |
60 |
Mandar Samant |
75 |
71.25 |
Russell King |
159 |
158 |
Jun Cao |
11.99 |
11.22 |
Notez que DataAccessMethod est séquentiel.
using Microsoft.VisualStudio.TestTools.UnitTesting;
using BankAccountNS;
using System;
namespace MyCSTestProject
{
[TestClass()]
public class BankAccountTest
{
private TestContext testContextInstance;
public TestContext TestContext
{
get { return testContextInstance; }
set { testContextInstance = value; }
}
[TestMethod()]
[DataSource("System.Data.OleDb",
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\"C:\\sample.mdb\"",
"Table1",
DataAccessMethod.Sequential)]
public void DebitTest()
{
string customerName = testContextInstance.DataRow["Name"].ToString();
double bal = Convert.ToDouble(testContextInstance.DataRow["Balance"]);
double amt = Convert.ToDouble(testContextInstance.DataRow["Amount"]);
double newBalance = bal - amt;
BankAccount target = new BankAccount(customerName, bal);
target.Debit(amt);
Assert.AreEqual(newBalance, target.Balance, .00);
}
}
}
Imports Microsoft.VisualStudio.TestTools.UnitTesting
Imports BankAccountNS
Imports System
Namespace TestProject1
<TestClass()> _
Public Class BankAccountTest
Private testContextInstance As TestContext
Public Property TestContext() As TestContext
Get
Return testContextInstance
End Get
Set(ByVal Value As TestContext)
testContextInstance = Value
End Set
End Property
<TestMethod()> _
<DataSource("System.Data.OleDb", _
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=""D:\sample.mdb""", _
"Table1", DataAccessMethod.Sequential)> _
Public Sub DebitTest()
Dim customerName As String = testContextInstance.DataRow("Name").ToString()
Dim balance As Double = Convert.ToDouble(testContextInstance.DataRow("Balance"))
Dim amount As Double = Convert.ToDouble(testContextInstance.DataRow("Amount"))
Dim NewBalance As Double = balance - amount
Dim target As BankAccount = New BankAccount(customerName, balance)
target.Debit(amount)
Assert.AreEqual(NewBalance, target.Balance, 0.0)
End Sub
End Class
End Namespace
Voir aussi
Référence
Microsoft.VisualStudio.TestTools.UnitTesting, espace de noms
Autres ressources
Tests unitaires pilotés par des données
Codage d'un test unitaire piloté par des données
Comment : configurer un test unitaire piloté par des données