public void CopyToMovesDataIntoArray()
{
IDictionary <string, StringValues> headers = new HttpRequestHeaders();
headers.Add("host", new[] { "localhost" });
headers.Add("Content-Length", new[] { "0" });
headers.Add("custom", new[] { "value" });
var entries = new KeyValuePair <string, StringValues> [5];
headers.CopyTo(entries, 1);
Assert.Null(entries[0].Key);
Assert.Equal(new StringValues(), entries[0].Value);
Assert.Equal("Host", entries[1].Key);
Assert.Equal(new[] { "localhost" }, entries[1].Value);
Assert.Equal("Content-Length", entries[2].Key);
Assert.Equal(new[] { "0" }, entries[2].Value);
Assert.Equal("custom", entries[3].Key);
Assert.Equal(new[] { "value" }, entries[3].Value);
Assert.Null(entries[4].Key);
Assert.Equal(new StringValues(), entries[4].Value);
}
