PrivateObject.Invoke Method (String, BindingFlags, array<Type[], array<Object[], CultureInfo, array<Type )

Used to access generic members of a private object.

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

Syntax

'Declaration
Public Function Invoke ( _
    name As String, _
    bindingFlags As BindingFlags, _
    parameterTypes As Type(), _
    args As Object(), _
    culture As CultureInfo, _
    typeArguments As Type() _
) As Object

public Object Invoke(
    string name,
    BindingFlags bindingFlags,
    Type[] parameterTypes,
    Object[] args,
    CultureInfo culture,
    Type[] typeArguments
)

public:
Object^ Invoke(
    String^ name, 
    BindingFlags bindingFlags, 
    array<Type^>^ parameterTypes, 
    array<Object^>^ args, 
    CultureInfo^ culture, 
    array<Type^>^ typeArguments
)

member Invoke : 
        name:string * 
        bindingFlags:BindingFlags * 
        parameterTypes:Type[] * 
        args:Object[] * 
        culture:CultureInfo * 
        typeArguments:Type[] -> Object

public function Invoke(
    name : String, 
    bindingFlags : BindingFlags, 
    parameterTypes : Type[], 
    args : Object[], 
    culture : CultureInfo, 
    typeArguments : Type[]
) : Object

Parameters

• name
  Type: String

  The name of the member to invoke.

• bindingFlags
  Type: BindingFlags

• parameterTypes
  Type: array<Type[]

  An array of Type objects that represents the number, order, and type of the parameters for the method to access.

  -or-

  An empty array of the type Type (that is, Type[] types = new Type[0]) to get a method that takes no parameters.

• args
  Type: array<Object[]

  Any arguments that the member requires.

• culture
  Type: CultureInfo

  The CultureInfo object that represents the globalization locale to use, which might be necessary for locale-specific conversions, such as converting a numeric String to a Double.

  -or-

  nulla null reference (Nothing in Visual Basic) to use the current thread's CultureInfo.

• typeArguments
  Type: array<Type[]

  An array of type arguments to use when invoking a generic method.

Return Value

Type: Object

Examples

The following code is in the application that you are testing. It contains a generic method that you want to test, TestThisMethod<T>.

internal class Customer
{
    internal T TestThisMethod<T>(T value)
    {
        return (value);
    }

    public Customer()
    {
    }
}

The following code is a test method in your unit test. It shows how to pass a type argument, in the final Type[] parameter, when it invokes the method that you are testing:

[TestMethod]
public void TestSetCustomerId()
{
    PrivateObject po = new PrivateObject(typeof(Customer));

    int id = 100;

    int actual = (int)po.Invoke("TestThisMethod", new Type[] { typeof(int) }, new Object[] { id }, new Type[] { typeof(int) });

    Assert.AreEqual(actual, id);
}

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

PrivateObject Class

Invoke Overload

Microsoft.VisualStudio.TestTools.UnitTesting Namespace