public void GetChildModelBindingContext()
{
// Arrange
var originalBindingContext = new ModelBindingContext
{
ModelMetadata = new TestModelMetadataProvider().GetMetadataForType(typeof(object)),
ModelName = "theName",
ModelState = new ModelStateDictionary(),
ValueProvider = new SimpleHttpValueProvider()
};
var metadataProvider = new TestModelMetadataProvider();
metadataProvider.ForType <object>().BindingDetails(d =>
{
d.BindingSource = BindingSource.Custom;
d.BinderType = typeof(TestModelBinder);
d.BinderModelName = "custom";
});
var newModelMetadata = metadataProvider.GetMetadataForType(typeof(object));
// Act
var newBindingContext = ModelBindingContext.GetChildModelBindingContext(
originalBindingContext,
string.Empty,
newModelMetadata);
// Assert
Assert.Same(newModelMetadata, newBindingContext.ModelMetadata);
Assert.Same(newModelMetadata.BindingSource, newBindingContext.BindingSource);
Assert.Same(newModelMetadata.BinderModelName, newBindingContext.BinderModelName);
Assert.Same(newModelMetadata.BinderType, newBindingContext.BinderType);
Assert.Equal("", newBindingContext.ModelName);
Assert.Equal(originalBindingContext.ModelState, newBindingContext.ModelState);
Assert.Equal(originalBindingContext.ValueProvider, newBindingContext.ValueProvider);
}
