我有一个测试类,在每次测试执行之前都会调用构造函数。目前,以下测试之间不共享构造函数初始化的数据。我希望初始化数据设置一次并在所有测试中共享。这是我的代码:
[Category("Basics")]
[Collection("DBCollection")]
[ExcludeFromCodeCoverage]
public class SecurityTests : TestUnitBase
{
StartUpFixture fixture;
public AuthenticationTests(StartUpFixture fixture)
: base()
{
this.fixture = fixture;
}
[Fact(DisplayName = "Successful response Test1")]
public void SuccessfulResponseTest1()
{
var users = base.Db.Users.FirstOrDefault(x => x.Name == "abc");
...
}
[Fact(DisplayName = "Successful response Test2")]
public void SuccessfulResponseTest2()
{
var users = base.Db.Users.FirstOrDefault(x => x.Name == "xyz");
...
}
你能帮我设置一下,以便夹具初始化一次并且其数据可供此类中的所有测试方法使用吗?
提前致谢。
您可以使用 Xunit 类装置。使用类固定装置时,xUnit.net 将确保在任何测试运行之前创建固定装置实例,并且一旦所有测试完成,它将通过调用 Dispose 来清理固定装置对象(如果存在)。例如:
//similar to base class
public class DatabaseFixture : IDisposable
{
public SqlConnection Db { get; private set; }
public DatabaseFixture()
{
Db = new SqlConnection("MyConnectionString");
// initialize data in the test database
}
public void Dispose()
{
// clean up test data from the database
}
}
//Class where you want to use shared class instance
public class MyDatabaseTests : IClassFixture<DatabaseFixture>
{
DatabaseFixture dbFixture;
public MyDatabaseTests(DatabaseFixture fixture)
{
this.dbFixture = fixture;
}
// write tests, using dbFixture.Db to get access to the SQL Server
}
对于每个测试,它将创建一个新的 MyDatabaseTests 实例,并将 DatabaseFixture 的共享实例传递给构造函数。
Xunit 文档此处。
希望有帮助。
编辑28/10 对于多个固定装置,您可以创建一个类来封装其他两个固定装置,如下所示,并创建启动固定装置以在数据库固定装置之前运行:
public class SecurityTestsFixture : IDisposable
{
public DatabaseFixture Dbfixture { get; private set; }
public StartupTestFixture Startupfixture { get; private set; }
public SecurityTestsFixture()
{
Startupfixture = new StartupTestFixture();
Dbfixture = new DatabaseFixture(Startupfixture);
}
public void Dispose()
{
// clean up code
Dbfixture.Dispose();
}
public class StartupTestFixture
{
public string SqlConnString { get; private set; }
public StartupTestFixture()
{
SqlConnString = ConfigurationManager.AppSettings["SqlConnectionString"];
// other startup code
}
}
public class DatabaseFixture : IDisposable
{
public SqlConnection Db { get; private set; }
public DatabaseFixture(StartupTestFixture sFixture)
{
Db = new SqlConnection(sFixture.SqlConnString);
// initialize data in the test database
}
public void Dispose()
{
// clean up test data from the database
}
}
}
和测试班:
public class Xunittests : IClassFixture<SecurityTestsFixture>
{
SecurityTestsFixture _securityFixture;
public Xunittests(SecurityTestsFixture securityfixture)
{
_securityFixture = securityfixture;
}
[Fact(DisplayName = "Successful response Test1")]
public void SuccessfulResponseTest1()
{
var db = _securityFixture.Dbfixture.Db;
//var users = db.Users.FirstOrDefault(x => x.Name == "...");
Assert.Equal("test", "test");
}
}