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PropertyChangedAssertionsNotRaised_PropertyChangedT Method (SmartAssertPlaceHolder, ExpressionFuncT)

Creates an Assertion that ensure an object property/indexer did not change in the Act part of your test.

Namespace:  SmartTests.Assertions
Assembly:  SmartTests (in SmartTests.dll) Version: 1.9.0
Syntax
public static Assertion NotRaised_PropertyChanged<T>(
	this SmartAssertPlaceHolder this,
	Expression<Func<T>> expression
)

Parameters

this
Type: SmartTestsSmartAssertPlaceHolder
The dummy place holder for all Smart Assertions.
expression
Type: System.Linq.ExpressionsExpressionFuncT
The expression involving an instance an a property/indexer that should not change.

Type Parameters

T
The type of the property/indexer that should not change.

Return Value

Type: Assertion
The newly created Assertion.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type SmartAssertPlaceHolder. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
Exceptions
ExceptionCondition
ArgumentNullException If expression is null.
SmartTestException If the INotifyPropertyChanged event is raised for the property from expression.
Remarks
This Assertion ensures that:
  1. Before the Act -

    Nothing special.

  2. During the Act -

    Ensures the PropertyChanged event is not raised for the specified property in expression.

  3. After the Act -

    If the event is raised, a SmartTestException is thrown.

Examples
In this example, the Smart Assertion verifies that the PropertyChanged event is not raised for MyProperty.
[Test]
public void MyMethodTest()
{
    var mc = new MyClass();
    RunTest( ValidValue.IsValid,
             () => mc.MyMethod(),
             SmartAssert.NotRaised_PropertyChanged( () => mc.MyProperty ) );
}
See Also