public void HtmlAttributePropertyHelperReturnsCachedPropertyHelper()
{
// Arrange
var anonymous = new { foo = "bar" };
// Act
PropertyHelper[] helpers1 = HtmlAttributePropertyHelper.GetProperties(anonymous);
PropertyHelper[] helpers2 = HtmlAttributePropertyHelper.GetProperties(anonymous);
// Assert
Assert.Single(helpers1);
Assert.ReferenceEquals(helpers1, helpers2);
Assert.ReferenceEquals(helpers1[0], helpers2[0]);
}
/// <summary>
/// Creates a dictionary of HTML attributes from the input object,
/// translating underscores to dashes.
/// </summary>
/// <example>
/// new <c>{ data_name="value" }</c> will translate to the entry <c>{ "data-name" , "value" }</c>
/// in the resulting dictionary.
/// </example>
/// <param name="htmlAttributes">Anonymous object describing HTML attributes.</param>
/// <returns>A dictionary that represents HTML attributes.</returns>
public static RouteValueDictionary AnonymousObjectToHtmlAttributes(object htmlAttributes)
{
RouteValueDictionary result = new RouteValueDictionary();
if (htmlAttributes != null)
{
foreach (PropertyHelper property in HtmlAttributePropertyHelper.GetProperties(htmlAttributes))
{
result.Add(property.Name, property.GetValue(htmlAttributes));
}
}
return(result);
}
public void HtmlAttributePropertyHelper_ReturnsCachedPropertyHelper()
{
// Arrange
var anonymous = new { foo = "bar" };
// Act
var helpers1 = HtmlAttributePropertyHelper.GetProperties(anonymous.GetType());
var helpers2 = HtmlAttributePropertyHelper.GetProperties(anonymous.GetType());
// Assert
Assert.Single(helpers1);
Assert.Same(helpers1, helpers2);
Assert.Same(helpers1[0], helpers2[0]);
}
/// <summary>
/// Creates a dictionary of HTML attributes from the input object,
/// translating underscores to dashes in each public instance property.
///
/// If the object is already an <see cref="IDictionary{string, object}"/> instance, then it is
/// returned as-is.
/// <example>
/// <c>new { data_name="value" }</c> will translate to the entry <c>{ "data-name", "value" }</c>
/// in the resulting dictionary.
/// </example>
/// </summary>
/// <param name="htmlAttributes">Anonymous object describing HTML attributes.</param>
/// <returns>A dictionary that represents HTML attributes.</returns>
public static IDictionary <string, object> AnonymousObjectToHtmlAttributes(object htmlAttributes)
{
var dictionary = htmlAttributes as IDictionary <string, object>;
if (dictionary != null)
{
return(new Dictionary <string, object>(dictionary, StringComparer.OrdinalIgnoreCase));
}
dictionary = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase);
if (htmlAttributes != null)
{
foreach (var helper in HtmlAttributePropertyHelper.GetProperties(htmlAttributes))
{
dictionary[helper.Name] = helper.GetValue(htmlAttributes);
}
}
return(dictionary);
}
public void HtmlAttributeDoesNotShareCacheWithPropertyHelper()
{
// Arrange
var anonymous = new { bar_baz1 = "foo" };
// Act
PropertyHelper[] helpers1 = HtmlAttributePropertyHelper.GetProperties(anonymous);
PropertyHelper[] helpers2 = PropertyHelper.GetProperties(anonymous);
// Assert
PropertyHelper helper1 = Assert.Single(helpers1);
PropertyHelper helper2 = Assert.Single(helpers2);
Assert.NotEqual(helpers1, helpers2);
Assert.NotEqual(helper1, helper2);
Assert.IsType <HtmlAttributePropertyHelper>(helper1);
Assert.IsNotType <HtmlAttributePropertyHelper>(helper2);
Assert.Equal("bar-baz1", helper1.Name);
Assert.Equal("bar_baz1", helper2.Name);
}
public void HtmlAttributePropertyHelper_DoesNotShareCacheWithPropertyHelper()
{
// Arrange
var anonymous = new { bar_baz1 = "foo" };
// Act
var helpers1 = HtmlAttributePropertyHelper.GetProperties(anonymous.GetType());
var helpers2 = PropertyHelper.GetProperties(anonymous.GetType());
// Assert
Assert.Single(helpers1);
Assert.Single(helpers2);
Assert.NotEqual <PropertyHelper[]>(helpers1, helpers2);
Assert.NotEqual <PropertyHelper>(helpers1[0], helpers2[0]);
Assert.IsType <HtmlAttributePropertyHelper>(helpers1[0]);
Assert.IsNotType <HtmlAttributePropertyHelper>(helpers2[0]);
Assert.Equal("bar-baz1", helpers1[0].Name);
Assert.Equal("bar_baz1", helpers2[0].Name);
}