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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.Net.Http;
using System.Web.Http.Controllers;
using Microsoft.TestCommon;
using Xunit;
using Xunit.Extensions;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Http.Routing
{
public class UrlHelperTest
{
[Fact]
public void UrlHelper_CtorThrows_WithNullContext()
{
Assert.ThrowsArgumentNull(
() => new UrlHelper(null),
"controllerContext");
}
[Fact]
public void ControllerContext_HasUrlHelperWithValidContext()
{
HttpControllerContext cc = new HttpControllerContext();
Assert.NotNull(cc.Url);
Assert.IsType<UrlHelper>(cc.Url);
Assert.Same(cc, cc.Url.ControllerContext);
}
[Theory]
[PropertyData("UrlGeneratorTestData")]
public void UrlHelper_UsesCurrentRouteDataToPopulateValues_WithObjectValues(string controller, int? id, string expectedUrl)
{
var url = GetUrlHelperForApi();
object routeValues = GetRouteValuesAsObject(controller, id);
string generatedUrl = url.Route("route1", routeValues);
Assert.Equal(expectedUrl, generatedUrl);
}
[Theory]
[PropertyData("UrlGeneratorTestData")]
public void UrlHelper_UsesCurrentRouteDataToPopulateValues_WithDictionaryValues(string controller, int? id, string expectedUrl)
{
var url = GetUrlHelperForApi();
Dictionary<string, object> routeValues = GetRouteValuesAsDictionary(controller, id);
string generatedUrl = url.Route("route1", routeValues);
Assert.Equal(expectedUrl, generatedUrl);
}
[Fact]
public void UrlHelper_Throws_WhenWrongNameUsed_WithObjectValues()
{
var url = GetUrlHelperForApi();
Assert.ThrowsArgument(
() => url.Route("route-doesn't-exist", null),
"name",
"A route named 'route-doesn't-exist' could not be found in the route collection.");
}
[Fact]
public void UrlHelper_Throws_WhenWrongNameUsed_WithDictionaryValues()
{
var url = GetUrlHelperForApi();
Assert.ThrowsArgument(
() => url.Route("route-doesn't-exist", (IDictionary<string, object>)null),
"name",
"A route named 'route-doesn't-exist' could not be found in the route collection.");
}
[Theory]
[TestDataSet(
typeof(UrlHelperTest), "UrlGeneratorTestData",
typeof(UrlHelperTest), "RequestUrlTestData")]
public void UrlHelper_LinkGeneration_GeneratesRightLinksWithDictionary(string controller, int? id, string expectedUrl, string requestUrl)
{
var urlHelper = GetUrlHelperForApi();
urlHelper.ControllerContext.Request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
Dictionary<string, object> routeValues = GetRouteValuesAsDictionary(controller, id);
string baseUrl = new Uri(requestUrl).GetLeftPart(UriPartial.Authority);
string generatedlink = urlHelper.Link("route1", routeValues);
Assert.Equal(expectedUrl != null ? baseUrl + expectedUrl : null, generatedlink);
}
[Theory]
[TestDataSet(
typeof(UrlHelperTest), "UrlGeneratorTestData",
typeof(UrlHelperTest), "RequestUrlTestData")]
public void UrlHelper_LinkGeneration_GeneratesRightLinksWithObject(string controller, int? id, string expectedUrl, string requestUrl)
{
var urlHelper = GetUrlHelperForApi();
urlHelper.ControllerContext.Request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
object routeValues = GetRouteValuesAsObject(controller, id);
string baseUrl = new Uri(requestUrl).GetLeftPart(UriPartial.Authority);
string generatedlink = urlHelper.Link("route1", routeValues);
Assert.Equal(expectedUrl != null ? baseUrl + expectedUrl : null, generatedlink);
}
private static UrlHelper GetUrlHelperForApi()
{
HttpControllerContext cc = new HttpControllerContext();
// Set up routes
var routes = new HttpRouteCollection("/somerootpath");
IHttpRoute route = routes.MapHttpRoute("route1", "{controller}/{id}");
cc.Configuration = new HttpConfiguration(routes);
cc.RouteData = new HttpRouteData(route, new HttpRouteValueDictionary(new { controller = "people", id = "123" }));
return cc.Url;
}
private static object GetRouteValuesAsObject(string controller, int? id)
{
object routeValues = null;
if (controller == null)
{
if (id == null)
{
routeValues = null;
}
else
{
routeValues = new { id };
}
}
else
{
if (id == null)
{
routeValues = new { controller };
}
else
{
routeValues = new { controller, id };
}
}
return routeValues;
}
private static Dictionary<string, object> GetRouteValuesAsDictionary(string controller, int? id)
{
Dictionary<string, object> routeValues = new Dictionary<string, object>();
if (controller == null)
{
if (id == null)
{
routeValues = null;
}
else
{
routeValues.Add("id", id);
}
}
else
{
if (id == null)
{
routeValues.Add("controller", controller);
}
else
{
routeValues.Add("controller", controller);
routeValues.Add("id", id);
}
}
return routeValues;
}
public static IEnumerable<object[]> UrlGeneratorTestData
{
get
{
return new TheoryDataSet<string, int?, string>()
{
{ null, 456, "/somerootpath/people/456"}, // Just override ID, so ID is replaced
{ "people", 456, "/somerootpath/people/456"}, // Just override ID, so ID is replaced
{ null, null, "/somerootpath/people/123"}, // Override nothing, so everything the same
{ "people", null, "/somerootpath/people/123"}, // Override nothing, so everything the same
{ "customers", 456, "/somerootpath/customers/456"}, // Override everything, so everything changed
{ "customers", null, null}, // Override controller, which clears out the ID, so it doesn't match (i.e. null)
};
}
}
public static IEnumerable<object> RequestUrlTestData
{
get
{
return new[] { "http://localhost", "http://localhost/123", "http://localhost/123?q=odata&$filter=123#123" };
}
}
}
}
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