public void ResolveModel_ReturnsModelWhenProvided()
{
// Arrange
var expectedModel = new object();
var tagHelper = new PartialTagHelper(Mock.Of <ICompositeViewEngine>(), Mock.Of <IViewBufferScope>())
{
Model = expectedModel,
};
// Act
var model = tagHelper.ResolveModel();
// Assert
Assert.Same(expectedModel, model);
}
public void ResolveModel_ReturnsViewContextsViewDataModelWhenModelAndForAreNotSet()
{
// Arrange
var expectedModel = new object();
var viewContext = GetViewContext();
viewContext.ViewData.Model = expectedModel;
var tagHelper = new PartialTagHelper(Mock.Of <ICompositeViewEngine>(), Mock.Of <IViewBufferScope>())
{
ViewContext = viewContext
};
// Act
var model = tagHelper.ResolveModel();
// Assert
Assert.Same(expectedModel, model);
}
public void ResolveModel_ReturnsModelWhenNullValueIsProvided()
{
// Regression test for https://github.com/aspnet/Mvc/issues/7667.
// Arrange
var viewData = new ViewDataDictionary(new EmptyModelMetadataProvider(), new ModelStateDictionary())
{
Model = new object(),
};
var tagHelper = new PartialTagHelper(Mock.Of <ICompositeViewEngine>(), Mock.Of <IViewBufferScope>())
{
Model = null,
ViewData = viewData,
};
// Act
var model = tagHelper.ResolveModel();
// Assert
Assert.Null(model);
}
public void ResolveModel_ThrowsWhenNullModelAndForProvided()
{
// Arrange
var modelMetadataProvider = new TestModelMetadataProvider();
var containerModel = new TestModel();
var containerModelExplorer = modelMetadataProvider.GetModelExplorerForType(
typeof(TestModel),
containerModel);
var propertyModelExplorer = containerModelExplorer.GetExplorerForProperty(nameof(TestModel.Property));
var tagHelper = new PartialTagHelper(Mock.Of <ICompositeViewEngine>(), Mock.Of <IViewBufferScope>())
{
Model = null,
For = new ModelExpression("Property", propertyModelExplorer),
};
var expectedMessage = Resources.FormatPartialTagHelper_InvalidModelAttributes(typeof(PartialTagHelper).FullName, "for", "model");
// Act & Assert
var exception = Assert.Throws <InvalidOperationException>(() => tagHelper.ResolveModel());
Assert.Equal(expectedMessage, exception.Message);
}
public void ResolveModel_ReturnsForModelWhenProvided()
{
// Arrange
var expectedModel = new PropertyModel();
var modelMetadataProvider = new TestModelMetadataProvider();
var containerModel = new TestModel()
{
Property = expectedModel
};
var containerModelExplorer = modelMetadataProvider.GetModelExplorerForType(
typeof(TestModel),
containerModel);
var propertyModelExplorer = containerModelExplorer.GetExplorerForProperty(nameof(TestModel.Property));
var tagHelper = new PartialTagHelper(Mock.Of <ICompositeViewEngine>(), Mock.Of <IViewBufferScope>())
{
For = new ModelExpression("Property", propertyModelExplorer),
};
// Act
var model = tagHelper.ResolveModel();
// Assert
Assert.Same(expectedModel, model);
}