public async Task ProcessAsync_WithCollectionModelExpression_DeducesCheckedFromModelExpression(
int[] modelValues,
string itemValue,
bool expectedChecked)
{
// Arrange
var model = new ModelWithCollectionProperty()
{
CollectionProperty = modelValues
};
var modelExplorer = new EmptyModelMetadataProvider().GetModelExplorerForType(typeof(ModelWithCollectionProperty), model)
.GetExplorerForProperty(nameof(ModelWithCollectionProperty.CollectionProperty));
var viewContext = new ViewContext();
var modelExpression = nameof(ModelWithCollectionProperty.CollectionProperty);
var checkboxesContext = new CheckboxesContext(name: "test", aspFor: new ModelExpression(modelExpression, modelExplorer));
var context = new TagHelperContext(
tagName: "govuk-checkboxes-item",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(CheckboxesContext), checkboxesContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-checkboxes-item",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new CheckboxesItemTagHelper()
{
ViewContext = viewContext,
Value = itemValue
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Collection(
checkboxesContext.Items,
item =>
{
var checkboxesItem = Assert.IsType <CheckboxesItem>(item);
Assert.Equal(expectedChecked, checkboxesItem.Checked);
});
}
public async Task ProcessAsync_WithNullCollectionModelExpression_ExecutesSuccessfully()
{
// Arrange
var model = new ModelWithCollectionProperty()
{
CollectionProperty = null
};
var modelExplorer = new EmptyModelMetadataProvider().GetModelExplorerForType(typeof(ModelWithCollectionProperty), model)
.GetExplorerForProperty(nameof(ModelWithCollectionProperty.CollectionProperty));
var viewContext = new ViewContext();
var modelExpression = nameof(ModelWithCollectionProperty.CollectionProperty);
var radiosContext = new RadiosContext(name: "test", aspFor: new ModelExpression(modelExpression, modelExplorer));
var context = new TagHelperContext(
tagName: "govuk-radios-item",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>()
{
{ typeof(RadiosContext), radiosContext }
},
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-radios-item",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new RadiosItemTagHelper()
{
Value = "2"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Collection(
radiosContext.Items,
item =>
{
var radiosItem = Assert.IsType <RadiosItem>(item);
Assert.False(radiosItem.Checked);
});
}
