/// <summary>
/// Checks whether a view result contains a model that matches the specified condition.
/// </summary>
/// <typeparam name="TModel">The type of view result model.</typeparam>
/// <param name="instance">The view result test.</param>
/// <param name="predicate">The delegate that defines the model condition.</param>
/// <returns>The model test.</returns>
/// <exception cref="TestStack.FluentMVCTesting.ViewResultModelAssertionException">The view result model does not match the specified condition.</exception>
/// <remarks>
/// This method substitues the WithModel method with condition parameter as it serializes the model into JSON.
/// Kentico TreeNode class is not serializable when the database is not available and as the result the WithModel method fails.
/// </remarks>
public static ModelTest <TModel> WithModelMatchingCondition <TModel>(this ViewResultTest instance, Expression <Func <TModel, bool> > predicate) where TModel : class
{
var test = instance.WithModel <TModel>();
var viewResult = mViewResultField.GetValue(instance) as ViewResultBase;
var model = viewResult.Model as TModel;
var compiledPredicate = predicate.Compile();
if (!compiledPredicate(model))
{
throw new ViewResultModelAssertionException("Expected view model to pass the given condition, but it failed.");
}
return(test);
}
public void Check_the_type_of_model()
{
_viewResultTest.WithModel <TestViewModel>();
}