public void Create_ForNonFormCollectionTypes_ReturnsNull(Type modelType)
{
// Arrange
var provider = new FormCollectionModelBinderProvider();
var context = new TestModelBinderProviderContext(modelType);
// Act
var result = provider.GetBinder(context);
// Assert
Assert.Null(result);
}
public void Create_ForFormCollectionToken_ReturnsBinder()
{
// Arrange
var provider = new FormCollectionModelBinderProvider();
var context = new TestModelBinderProviderContext(typeof(IFormCollection));
// Act
var result = provider.GetBinder(context);
// Assert
Assert.IsType <FormCollectionModelBinder>(result);
}
public void Create_ThrowsException_ForFormCollectionModelType(Type modelType)
{
// Arrange
var provider = new FormCollectionModelBinderProvider();
var context = new TestModelBinderProviderContext(modelType);
// Act & Assert
var exception = Assert.Throws <InvalidOperationException>(() => provider.GetBinder(context));
Assert.Equal(
$"The '{typeof(FormCollectionModelBinder).FullName}' cannot bind to a model of type '{modelType.FullName}'. Change the model type to '{typeof(IFormCollection).FullName}' instead.",
exception.Message);
}
