public void FirstDispositionNameThrows()
{
Assert.ThrowsArgumentNull(() => { HttpContentCollectionExtensions.FirstDispositionName(null, "A"); }, "contents");
IEnumerable <HttpContent> content = HttpContentCollectionExtensionsTests.CreateContent();
Assert.ThrowsArgumentNull(() => { HttpContentCollectionExtensions.FirstDispositionName(content, null); }, "dispositionName");
foreach (string empty in TestData.EmptyStrings)
{
Assert.ThrowsArgumentNull(() => { HttpContentCollectionExtensions.FirstDispositionName(content, empty); }, "dispositionName");
}
}
/// <summary>
/// Returns the first <see cref="HttpContent"/> in a sequence that has a <see cref="ContentDispositionHeaderValue"/> header field
/// with a <see cref="ContentDispositionHeaderValue.Name"/> property equal to <paramref name="dispositionName"/>.
/// </summary>
/// <param name="contents">The contents to evaluate</param>
/// <param name="dispositionName">The disposition name to look for.</param>
/// <returns>The first <see cref="HttpContent"/> in the sequence with a matching disposition name.</returns>
public static HttpContent FirstDispositionName(this IEnumerable <HttpContent> contents, string dispositionName)
{
if (contents == null)
{
throw new ArgumentNullException("contents");
}
if (String.IsNullOrWhiteSpace(dispositionName))
{
throw new ArgumentNullException("dispositionName");
}
return(contents.First((item) =>
{
return HttpContentCollectionExtensions.FirstDispositionName(item, dispositionName);
}));
}