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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using Xunit;
using Xunit.Extensions;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Net.Http.Formatting
{
public class FormDataCollectionTests
{
[Fact]
public void CreateFromUri()
{
FormDataCollection form = new FormDataCollection(new Uri("http://foo.com/?x=1&y=2"));
Assert.Equal("1", form.Get("x"));
Assert.Equal("2", form.Get("y"));
}
[Fact]
public void CreateFromEmptyUri()
{
FormDataCollection form = new FormDataCollection(new Uri("http://foo.com"));
Assert.Empty(form);
}
[Fact]
public void UriConstructorThrowsNull()
{
Assert.Throws<ArgumentNullException>(() => new FormDataCollection((Uri)null));
}
[Fact]
public void CreateFromEmptyString()
{
FormDataCollection form = new FormDataCollection("");
Assert.Empty(form);
}
[Fact]
public void CreateFromNullString()
{
FormDataCollection form = new FormDataCollection((string) null);
Assert.Empty(form);
}
[Fact]
public void PairConstructorThrowsNull()
{
var arg = (IEnumerable<KeyValuePair<string, string>>)null;
Assert.Throws<ArgumentNullException>(() => new FormDataCollection(arg));
}
[Fact]
public void CreateFromPairs()
{
Dictionary<string, string> pairs = new Dictionary<string,string>
{
{ "x", "1"},
{ "y" , "2"}
};
var form = new FormDataCollection(pairs);
Assert.Equal("1", form.Get("x"));
Assert.Equal("2", form.Get("y"));
}
[Fact]
public void Enumeration()
{
FormDataCollection form = new FormDataCollection(new Uri("http://foo.com/?x=1&y=2"));
// Enumeration should be ordered
String s = "";
foreach (KeyValuePair<string, string> kv in form)
{
s += string.Format("{0}={1};", kv.Key, kv.Value);
}
Assert.Equal("x=1;y=2;", s);
}
[Fact]
public void GetValues()
{
FormDataCollection form = new FormDataCollection(new Uri("http://foo.com/?x=1&x=2&x=3"));
Assert.Equal(new string [] { "1", "2", "3"}, form.GetValues("x"));
}
[Fact]
public void CaseInSensitive()
{
FormDataCollection form = new FormDataCollection(new Uri("http://foo.com/?x=1&Y=2"));
NameValueCollection nvc = form.ReadAsNameValueCollection();
Assert.Equal(2, nvc.Count);
Assert.Equal("1", nvc.Get("x"));
Assert.Equal("2", nvc.Get("y"));
}
[Fact]
public void ToNameValueCollection()
{
FormDataCollection form = new FormDataCollection(new Uri("http://foo.com/?x=1a&y=2&x=1b&=ValueOnly&KeyOnly"));
NameValueCollection nvc = form.ReadAsNameValueCollection();
// y=2
// x=1a;x=1b
// =ValueOnly
// KeyOnly
Assert.Equal(4, nvc.Count);
Assert.Equal(new string[] { "1a", "1b"}, nvc.GetValues("x"));
Assert.Equal("1a,1b", nvc.Get("x"));
Assert.Equal("2", nvc.Get("y"));
Assert.Equal("", nvc.Get("KeyOnly"));
Assert.Equal("ValueOnly", nvc.Get(""));
}
const string SPACE = " "; // single literal space character
[Theory]
[InlineData("x=abc", "abc")] // normal
[InlineData("x", "")] // key only
[InlineData("x=", "")] // rhs only
[InlineData("x=%20", SPACE)] // escaped space
[InlineData("x=" + SPACE, SPACE)] // literal space
[InlineData("x=+", SPACE)] //
[InlineData("x=null", "null")] // null literal, not escaped
[InlineData("x=undefined", "undefined")] // undefined literal, not escaped
[InlineData("x=\"null\"", "\"null\"")] // quoted null, preserved as is
public void Whitespace(string queryString, string expected)
{
FormDataCollection fd = new FormDataCollection(queryString);
Assert.Equal(1, fd.Count());
Assert.Equal(expected, fd.Get("x"));
}
}
}
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