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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Globalization;
using System.Linq;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Routing.Constraints;
using Microsoft.AspNetCore.Routing.Template;
using Microsoft.AspNetCore.Routing.TestObjects;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Abstractions;
using Microsoft.Extensions.ObjectPool;
using Microsoft.Extensions.Options;
using Moq;
namespace Microsoft.AspNetCore.Routing.Tree;
public class TreeRouterTest
{
private static readonly RequestDelegate NullHandler = (c) => Task.CompletedTask;
[Theory]
[InlineData("template/5", "template/{parameter:int}")]
[InlineData("template/5", "template/{parameter}")]
[InlineData("template/5", "template/{*parameter:int}")]
[InlineData("template/5", "template/{*parameter}")]
[InlineData("template/{parameter}", "template/{parameter:alpha}")] // constraint doesn't match
[InlineData("template/{parameter:int}", "template/{parameter}")]
[InlineData("template/{parameter:int}", "template/{*parameter:int}")]
[InlineData("template/{parameter:int}", "template/{*parameter}")]
[InlineData("template/{parameter}", "template/{*parameter:int}")]
[InlineData("template/{parameter}", "template/{*parameter}")]
[InlineData("template/{*parameter:int}", "template/{*parameter}")]
public async Task TreeRouter_RouteAsync_RespectsPrecedence(
string firstTemplate,
string secondTemplate)
{
// Arrange
var expectedRouteGroup = CreateRouteGroup(0, firstTemplate);
var builder = CreateBuilder();
// We setup the route entries in reverse order of precedence to ensure that when we
// try to route the request, the route with a higher precedence gets tried first.
MapInboundEntry(builder, secondTemplate);
MapInboundEntry(builder, firstTemplate);
var route = builder.Build();
var context = CreateRouteContext("/template/5");
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
}
[Theory]
[InlineData("/", "")]
[InlineData("/Literal1", "Literal1")]
[InlineData("/Literal1/Literal2", "Literal1/Literal2")]
[InlineData("/Literal1/Literal2/Literal3", "Literal1/Literal2/Literal3")]
[InlineData("/Literal1/Literal2/Literal3/4", "Literal1/Literal2/Literal3/{*constrainedCatchAll:int}")]
[InlineData("/Literal1/Literal2/Literal3/Literal4", "Literal1/Literal2/Literal3/{*catchAll}")]
[InlineData("/1", "{constrained1:int}")]
[InlineData("/1/2", "{constrained1:int}/{constrained2:int}")]
[InlineData("/1/2/3", "{constrained1:int}/{constrained2:int}/{constrained3:int}")]
[InlineData("/1/2/3/4", "{constrained1:int}/{constrained2:int}/{constrained3:int}/{*constrainedCatchAll:int}")]
[InlineData("/1/2/3/CatchAll4", "{constrained1:int}/{constrained2:int}/{constrained3:int}/{*catchAll}")]
[InlineData("/parameter1", "{parameter1}")]
[InlineData("/parameter1/parameter2", "{parameter1}/{parameter2}")]
[InlineData("/parameter1/parameter2/parameter3", "{parameter1}/{parameter2}/{parameter3}")]
[InlineData("/parameter1/parameter2/parameter3/4", "{parameter1}/{parameter2}/{parameter3}/{*constrainedCatchAll:int}")]
[InlineData("/parameter1/parameter2/parameter3/CatchAll4", "{parameter1}/{parameter2}/{parameter3}/{*catchAll}")]
public async Task TreeRouter_RouteAsync_MatchesRouteWithTheRightLength(string url, string expected)
{
// Arrange
var routes = new[] {
"",
"Literal1",
"Literal1/Literal2",
"Literal1/Literal2/Literal3",
"Literal1/Literal2/Literal3/{*constrainedCatchAll:int}",
"Literal1/Literal2/Literal3/{*catchAll}",
"{constrained1:int}",
"{constrained1:int}/{constrained2:int}",
"{constrained1:int}/{constrained2:int}/{constrained3:int}",
"{constrained1:int}/{constrained2:int}/{constrained3:int}/{*constrainedCatchAll:int}",
"{constrained1:int}/{constrained2:int}/{constrained3:int}/{*catchAll}",
"{parameter1}",
"{parameter1}/{parameter2}",
"{parameter1}/{parameter2}/{parameter3}",
"{parameter1}/{parameter2}/{parameter3}/{*constrainedCatchAll:int}",
"{parameter1}/{parameter2}/{parameter3}/{*catchAll}",
};
var expectedRouteGroup = CreateRouteGroup(0, expected);
var builder = CreateBuilder();
// We setup the route entries in reverse order of precedence to ensure that when we
// try to route the request, the route with a higher precedence gets tried first.
foreach (var template in Enumerable.Reverse(routes))
{
MapInboundEntry(builder, template);
}
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
}
public static TheoryData<string, object[]> MatchesRoutesWithDefaultsData =>
new TheoryData<string, object[]>
{
{ "/", new object[] { "1", "2", "3", "4" } },
{ "/a", new object[] { "a", "2", "3", "4" } },
{ "/a/b", new object[] { "a", "b", "3", "4" } },
{ "/a/b/c", new object[] { "a", "b", "c", "4" } },
{ "/a/b/c/d", new object[] { "a", "b", "c", "d" } }
};
[Theory]
[MemberData(nameof(MatchesRoutesWithDefaultsData))]
public async Task TreeRouter_RouteAsync_MatchesRoutesWithDefaults(string url, object[] routeValues)
{
// Arrange
var routes = new[] {
"{parameter1=1}/{parameter2=2}/{parameter3=3}/{parameter4=4}",
};
var expectedRouteGroup = CreateRouteGroup(0, "{parameter1=1}/{parameter2=2}/{parameter3=3}/{parameter4=4}");
var routeValueKeys = new[] { "parameter1", "parameter2", "parameter3", "parameter4" };
var expectedRouteValues = new RouteValueDictionary();
for (var i = 0; i < routeValueKeys.Length; i++)
{
expectedRouteValues.Add(routeValueKeys[i], routeValues[i]);
}
var builder = CreateBuilder();
// We setup the route entries in reverse order of precedence to ensure that when we
// try to route the request, the route with a higher precedence gets tried first.
foreach (var template in Enumerable.Reverse(routes))
{
MapInboundEntry(builder, template);
}
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
foreach (var entry in expectedRouteValues)
{
var data = Assert.Single(context.RouteData.Values, v => v.Key == entry.Key);
Assert.Equal(entry.Value, data.Value);
}
}
public static TheoryData<string, object[]> MatchesConstrainedRoutesWithDefaultsData =>
new TheoryData<string, object[]>
{
{ "/", new object[] { "1", "2", "3", "4" } },
{ "/10", new object[] { "10", "2", "3", "4" } },
{ "/10/11", new object[] { "10", "11", "3", "4" } },
{ "/10/11/12", new object[] { "10", "11", "12", "4" } },
{ "/10/11/12/13", new object[] { "10", "11", "12", "13" } }
};
[Theory]
[MemberData(nameof(MatchesConstrainedRoutesWithDefaultsData))]
public async Task TreeRouter_RouteAsync_MatchesConstrainedRoutesWithDefaults(string url, object[] routeValues)
{
// Arrange
var routes = new[] {
"{parameter1:int=1}/{parameter2:int=2}/{parameter3:int=3}/{parameter4:int=4}",
};
var expectedRouteGroup = CreateRouteGroup(0, "{parameter1:int=1}/{parameter2:int=2}/{parameter3:int=3}/{parameter4:int=4}");
var routeValueKeys = new[] { "parameter1", "parameter2", "parameter3", "parameter4" };
var expectedRouteValues = new RouteValueDictionary();
for (var i = 0; i < routeValueKeys.Length; i++)
{
expectedRouteValues.Add(routeValueKeys[i], routeValues[i]);
}
var builder = CreateBuilder();
// We setup the route entries in reverse order of precedence to ensure that when we
// try to route the request, the route with a higher precedence gets tried first.
foreach (var template in Enumerable.Reverse(routes))
{
MapInboundEntry(builder, template);
}
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
foreach (var entry in expectedRouteValues)
{
var data = Assert.Single(context.RouteData.Values, v => v.Key == entry.Key);
Assert.Equal(entry.Value, data.Value);
}
}
[Fact]
public async Task TreeRouter_RouteAsync_MatchesCatchAllRoutesWithDefaults()
{
// Arrange
var routes = new[] {
"{parameter1=1}/{parameter2=2}/{parameter3=3}/{*parameter4=4}",
};
var url = "/a/b/c";
var routeValues = new[] { "a", "b", "c", "4" };
var expectedRouteGroup = CreateRouteGroup(0, "{parameter1=1}/{parameter2=2}/{parameter3=3}/{*parameter4=4}");
var routeValueKeys = new[] { "parameter1", "parameter2", "parameter3", "parameter4" };
var expectedRouteValues = new RouteValueDictionary();
for (var i = 0; i < routeValueKeys.Length; i++)
{
expectedRouteValues.Add(routeValueKeys[i], routeValues[i]);
}
var builder = CreateBuilder();
// We setup the route entries in reverse order of precedence to ensure that when we
// try to route the request, the route with a higher precedence gets tried first.
foreach (var template in Enumerable.Reverse(routes))
{
MapInboundEntry(builder, template);
}
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
foreach (var entry in expectedRouteValues)
{
var data = Assert.Single(context.RouteData.Values, v => v.Key == entry.Key);
Assert.Equal(entry.Value, data.Value);
}
}
[Fact]
public async Task TreeRouter_RouteAsync_DoesNotMatchRoutesWithIntermediateDefaultRouteValues()
{
// Arrange
var url = "/a/b";
var builder = CreateBuilder();
MapInboundEntry(builder, "a/b/{parameter3=3}/d");
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Null(context.Handler);
}
[Theory]
[InlineData("a/{b=3}/c/{d?}/e/{*f}", "/a")]
[InlineData("a/{b=3}/c/{d?}/e/{*f}", "/a/b")]
[InlineData("a/{b=3}/c/{d?}/e/{*f}", "/a/b/c")]
[InlineData("a/{b=3}/c/{d?}/e/{*f}", "/a/b/c/d")]
public async Task TreeRouter_RouteAsync_DoesNotMatchRoutesWithMultipleIntermediateDefaultOrOptionalRouteValues(string template, string url)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Null(context.Handler);
}
[Theory]
[InlineData("a/{b=3}/c/{d?}/e/{*f}", "/a/b/c/d/e")]
[InlineData("a/{b=3}/c/{d?}/e/{*f}", "/a/b/c/d/e/f")]
public async Task RouteAsync_MatchRoutesWithMultipleIntermediateDefaultOrOptionalRouteValues_WhenAllIntermediateValuesAreProvided(string template, string url)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
}
[Fact]
public async Task TreeRouter_RouteAsync_DoesNotMatchShorterUrl()
{
// Arrange
var routes = new[] {
"Literal1/Literal2/Literal3",
};
var builder = CreateBuilder();
// We setup the route entries in reverse order of precedence to ensure that when we
// try to route the request, the route with a higher precedence gets tried first.
foreach (var template in Enumerable.Reverse(routes))
{
MapInboundEntry(builder, template);
}
var route = builder.Build();
var context = CreateRouteContext("/Literal1");
// Act
await route.RouteAsync(context);
// Assert
Assert.Null(context.Handler);
}
[Theory]
[InlineData("template/5", "template/{parameter:int}")]
[InlineData("template/5", "template/{parameter}")]
[InlineData("template/5", "template/{*parameter:int}")]
[InlineData("template/5", "template/{*parameter}")]
[InlineData("template/{parameter:int}", "template/{parameter}")]
[InlineData("template/{parameter:int}", "template/{*parameter:int}")]
[InlineData("template/{parameter:int}", "template/{*parameter}")]
[InlineData("template/{parameter}", "template/{*parameter:int}")]
[InlineData("template/{parameter}", "template/{*parameter}")]
[InlineData("template/{*parameter:int}", "template/{*parameter}")]
public async Task TreeRouter_RouteAsync_RespectsOrderOverPrecedence(
string firstTemplate,
string secondTemplate)
{
// Arrange
var expectedRouteGroup = CreateRouteGroup(0, secondTemplate);
var builder = CreateBuilder();
// We setup the route entries with a lower relative order and higher relative precedence
// first to ensure that when we try to route the request, the route with the higher
// relative order gets tried first.
MapInboundEntry(builder, firstTemplate, order: 1);
MapInboundEntry(builder, secondTemplate, order: 0);
var route = builder.Build();
var context = CreateRouteContext("/template/5");
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
}
[Theory]
[InlineData("///")]
[InlineData("/a//")]
[InlineData("/a/b//")]
[InlineData("//b//")]
[InlineData("///c")]
[InlineData("///c/")]
public async Task TryMatch_MultipleOptionalParameters_WithEmptyIntermediateSegmentsDoesNotMatch(string url)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, "{controller?}/{action?}/{id?}");
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Null(context.Handler);
}
[Theory]
[InlineData("")]
[InlineData("/")]
[InlineData("/a")]
[InlineData("/a/")]
[InlineData("/a/b")]
[InlineData("/a/b/")]
[InlineData("/a/b/c")]
[InlineData("/a/b/c/")]
public async Task TryMatch_MultipleOptionalParameters_WithIncrementalOptionalValues(string url)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, "{controller?}/{action?}/{id?}");
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
}
[Theory]
[InlineData("///")]
[InlineData("////")]
[InlineData("/a//")]
[InlineData("/a///")]
[InlineData("//b/")]
[InlineData("//b//")]
[InlineData("///c")]
[InlineData("///c/")]
public async Task TryMatch_MultipleParameters_WithEmptyValues(string url)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, "{controller}/{action}/{id}");
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Null(context.Handler);
}
[Theory]
[InlineData("/a/b/c//")]
[InlineData("/a/b/c/////")]
public async Task TryMatch_CatchAllParameters_WithEmptyValuesAtTheEnd(string url)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, "{controller}/{action}/{*id}");
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
}
[Theory]
[InlineData("/a/b//")]
[InlineData("/a/b///c")]
public async Task TryMatch_CatchAllParameters_WithEmptyValues(string url)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, "{controller}/{action}/{*id}");
var route = builder.Build();
var context = CreateRouteContext(url);
// Act
await route.RouteAsync(context);
// Assert
Assert.Null(context.Handler);
}
[Theory]
[InlineData("{*path}", "/a", "a")]
[InlineData("{*path}", "/a/b/c", "a/b/c")]
[InlineData("a/{*path}", "/a/b", "b")]
[InlineData("a/{*path}", "/a/b/c/d", "b/c/d")]
[InlineData("a/{*path:regex(10/20/30)}", "/a/10/20/30", "10/20/30")]
public async Task TreeRouter_RouteAsync_MatchesWildCard_ForLargerPathSegments(
string template,
string requestPath,
string expectedResult)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(requestPath);
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
Assert.Equal(expectedResult, context.RouteData.Values["path"]);
}
[Theory]
[InlineData("a/{*path}", "/a")]
[InlineData("a/{*path}", "/a/")]
public async Task TreeRouter_RouteAsync_MatchesCatchAll_NullValue(
string template,
string requestPath)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(requestPath);
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
Assert.Null(context.RouteData.Values["path"]);
}
[Theory]
[InlineData("a/{*path}", "/a")]
[InlineData("a/{*path}", "/a/")]
public async Task TreeRouter_RouteAsync_MatchesCatchAll_NullValue_DoesNotReplaceExistingValue(
string template,
string requestPath)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(requestPath);
context.RouteData.Values["path"] = "existing-value";
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
Assert.Equal("existing-value", context.RouteData.Values["path"]);
}
[Theory]
[InlineData("a/{*path=default}", "/a")]
[InlineData("a/{*path=default}", "/a/")]
public async Task TreeRouter_RouteAsync_MatchesCatchAll_UsesDefaultValue(
string template,
string requestPath)
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(requestPath);
context.RouteData.Values["path"] = "existing-value";
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
Assert.Equal("default", context.RouteData.Values["path"]);
}
[Theory]
[InlineData("template/5")]
[InlineData("template/{parameter:int}")]
[InlineData("template/{parameter}")]
[InlineData("template/{*parameter:int}")]
[InlineData("template/{*parameter}")]
public async Task TreeRouter_RouteAsync_RespectsOrder(string template)
{
// Arrange
var expectedRouteGroup = CreateRouteGroup(0, template);
var builder = CreateBuilder();
// We setup the route entries with a lower relative order first to ensure that when
// we try to route the request, the route with the higher relative order gets tried first.
MapInboundEntry(builder, template, order: 1);
MapInboundEntry(builder, template, order: 0);
var route = builder.Build();
var context = CreateRouteContext("/template/5");
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
}
[Theory]
[InlineData("template/{first:int}", "template/{second:int}")]
[InlineData("template/{first}", "template/{second}")]
[InlineData("template/{*first:int}", "template/{*second:int}")]
[InlineData("template/{*first}", "template/{*second}")]
public async Task TreeRouter_RouteAsync_EnsuresStableOrdering(string first, string second)
{
// Arrange
var expectedRouteGroup = CreateRouteGroup(0, first);
var builder = CreateBuilder();
// We setup the route entries with a lower relative template order first to ensure that when
// we try to route the request, the route with the higher template order gets tried first.
MapInboundEntry(builder, first);
MapInboundEntry(builder, second);
var route = builder.Build();
var context = CreateRouteContext("/template/5");
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
}
[Theory]
[InlineData("template/{parameter:int}", "/template/5", true)]
[InlineData("template/{parameter:int?}", "/template/5", true)]
[InlineData("template/{parameter:int?}", "/template", true)]
[InlineData("template/{parameter:int?}", "/template/qwer", false)]
public async Task TreeRouter_WithOptionalInlineConstraint(
string template,
string request,
bool expectedResult)
{
// Arrange
var expectedRouteGroup = CreateRouteGroup(0, template);
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(request);
// Act
await route.RouteAsync(context);
// Assert
if (expectedResult)
{
Assert.NotNull(context.Handler);
Assert.Equal(expectedRouteGroup, context.RouteData.Values["test_route_group"]);
}
else
{
Assert.Null(context.Handler);
}
}
[Theory]
[InlineData("moo/{p1}.{p2?}", "/moo/foo.bar", "foo", "bar", null)]
[InlineData("moo/{p1?}", "/moo/foo", "foo", null, null)]
[InlineData("moo/{p1?}", "/moo", null, null, null)]
[InlineData("moo/{p1}.{p2?}", "/moo/foo", "foo", null, null)]
[InlineData("moo/{p1}.{p2?}", "/moo/foo..bar", "foo.", "bar", null)]
[InlineData("moo/{p1}.{p2?}", "/moo/foo.moo.bar", "foo.moo", "bar", null)]
[InlineData("moo/{p1}.{p2}", "/moo/foo.bar", "foo", "bar", null)]
[InlineData("moo/foo.{p1}.{p2?}", "/moo/foo.moo.bar", "moo", "bar", null)]
[InlineData("moo/foo.{p1}.{p2?}", "/moo/foo.moo", "moo", null, null)]
[InlineData("moo/.{p2?}", "/moo/.foo", null, "foo", null)]
[InlineData("moo/{p1}.{p2?}", "/moo/....", "..", ".", null)]
[InlineData("moo/{p1}.{p2?}", "/moo/.bar", ".bar", null, null)]
[InlineData("moo/{p1}.{p2}.{p3?}", "/moo/foo.moo.bar", "foo", "moo", "bar")]
[InlineData("moo/{p1}.{p2}.{p3?}", "/moo/foo.moo", "foo", "moo", null)]
[InlineData("moo/{p1}.{p2}.{p3}.{p4?}", "/moo/foo.moo.bar", "foo", "moo", "bar")]
[InlineData("{p1}.{p2?}/{p3}", "/foo.moo/bar", "foo", "moo", "bar")]
[InlineData("{p1}.{p2?}/{p3}", "/foo/bar", "foo", null, "bar")]
[InlineData("{p1}.{p2?}/{p3}", "/.foo/bar", ".foo", null, "bar")]
public async Task TreeRouter_WithOptionalCompositeParameter_Valid(
string template,
string request,
string p1,
string p2,
string p3)
{
// Arrange
var expectedRouteGroup = CreateRouteGroup(0, template);
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(request);
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(context.Handler);
if (p1 != null)
{
Assert.Equal(p1, context.RouteData.Values["p1"]);
}
if (p2 != null)
{
Assert.Equal(p2, context.RouteData.Values["p2"]);
}
if (p3 != null)
{
Assert.Equal(p3, context.RouteData.Values["p3"]);
}
}
[Theory]
[InlineData("moo/{p1}.{p2?}", "/moo/foo.")]
[InlineData("moo/{p1}.{p2?}", "/moo/.")]
[InlineData("moo/{p1}.{p2}", "/foo.")]
[InlineData("moo/{p1}.{p2}", "/foo")]
[InlineData("moo/{p1}.{p2}.{p3?}", "/moo/foo.moo.")]
[InlineData("moo/foo.{p2}.{p3?}", "/moo/bar.foo.moo")]
[InlineData("moo/foo.{p2}.{p3?}", "/moo/kungfoo.moo.bar")]
[InlineData("moo/foo.{p2}.{p3?}", "/moo/kungfoo.moo")]
[InlineData("moo/{p1}.{p2}.{p3?}", "/moo/foo")]
[InlineData("{p1}.{p2?}/{p3}", "/foo./bar")]
[InlineData("moo/.{p2?}", "/moo/.")]
[InlineData("{p1}.{p2}/{p3}", "/.foo/bar")]
public async Task TreeRouter_WithOptionalCompositeParameter_Invalid(
string template,
string request)
{
// Arrange
var expectedRouteGroup = CreateRouteGroup(0, template);
var builder = CreateBuilder();
MapInboundEntry(builder, template);
var route = builder.Build();
var context = CreateRouteContext(request);
// Act
await route.RouteAsync(context);
// Assert
Assert.Null(context.Handler);
}
[Theory]
[InlineData("template", "{*url:alpha}", "/template?url=dingo&id=5")]
[InlineData("{*url:alpha}", "{*url}", "/dingo?id=5")]
[InlineData("{id}", "{*url}", "/5?url=dingo")]
[InlineData("{id}", "{*url:alpha}", "/5?url=dingo")]
[InlineData("{id:int}", "{id}", "/5?url=dingo")]
[InlineData("{id}", "{id:alpha}/{url}", "/5?url=dingo")] // constraint doesn't match
[InlineData("template/api/{*url}", "template/api", "/template/api/dingo?id=5")]
[InlineData("template/api", "template/{*url}", "/template/api?url=dingo&id=5")]
[InlineData("template/api", "template/api{id}location", "/template/api?url=dingo&id=5")]
[InlineData("template/api{id}location", "template/{id:int}", "/template/api5location?url=dingo")]
public void TreeRouter_GenerateLink(string firstTemplate, string secondTemplate, string expectedPath)
{
// Arrange
var values = new Dictionary<string, object>
{
{"url", "dingo" },
{"id", 5 }
};
var route = CreateTreeRouter(firstTemplate, secondTemplate);
var context = CreateVirtualPathContext(
values: values,
ambientValues: null);
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal(expectedPath, result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_LongerTemplateWithDefaultIsMoreSpecific()
{
// Arrange
var firstTemplate = "template";
var secondTemplate = "template/{parameter:int=1003}";
var route = CreateTreeRouter(firstTemplate, secondTemplate);
var context = CreateVirtualPathContext(
values: null,
ambientValues: null);
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
// The Binder binds to /template
Assert.Equal("/template", result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Theory]
[InlineData("template/{parameter:int=5}", "template", "/template/5")]
[InlineData("template/{parameter}", "template", "/template/5")]
[InlineData("template/{parameter}/{id}", "template/{parameter}", "/template/5/1234")]
public void TreeRouter_GenerateLink_OrderingAgnostic(
string firstTemplate,
string secondTemplate,
string expectedPath)
{
// Arrange
var route = CreateTreeRouter(firstTemplate, secondTemplate);
var parameter = 5;
var id = 1234;
var values = new Dictionary<string, object>
{
{ nameof(parameter) , parameter},
{ nameof(id), id }
};
var context = CreateVirtualPathContext(
values: null,
ambientValues: values);
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal(expectedPath, result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Theory]
[InlineData("template", "template/{parameter}", "/template/5")]
[InlineData("template/{parameter}", "template/{parameter}/{id}", "/template/5/1234")]
[InlineData("template", "template/{parameter:int=5}", "/template/5")]
public void TreeRouter_GenerateLink_UseAvailableVariables(
string firstTemplate,
string secondTemplate,
string expectedPath)
{
// Arrange
var route = CreateTreeRouter(firstTemplate, secondTemplate);
var parameter = 5;
var id = 1234;
var values = new Dictionary<string, object>
{
{ nameof(parameter) , parameter},
{ nameof(id), id }
};
var context = CreateVirtualPathContext(
values: null,
ambientValues: values);
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal(expectedPath, result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Theory]
[InlineData("template/5", "template/{parameter:int}")]
[InlineData("template/5", "template/{parameter}")]
[InlineData("template/5", "template/{*parameter:int}")]
[InlineData("template/5", "template/{*parameter}")]
[InlineData("template/{parameter:int}", "template/{parameter}")]
[InlineData("template/{parameter:int}", "template/{*parameter:int}")]
[InlineData("template/{parameter:int}", "template/{*parameter}")]
[InlineData("template/{parameter}", "template/{*parameter:int}")]
[InlineData("template/{parameter}", "template/{*parameter}")]
[InlineData("template/{*parameter:int}", "template/{*parameter}")]
public void TreeRouter_GenerateLink_RespectsPrecedence(string firstTemplate, string secondTemplate)
{
// Arrange
var builder = CreateBuilder();
// We setup the route entries in reverse order of precedence to ensure that when we
// try to generate a link, the route with a higher precedence gets tried first.
MapOutboundEntry(builder, secondTemplate);
MapOutboundEntry(builder, firstTemplate);
var route = builder.Build();
var context = CreateVirtualPathContext(values: null, ambientValues: new { parameter = 5 });
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal("/template/5", result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Theory]
[InlineData("template/{parameter:int}", "/template/5", 5)]
[InlineData("template/{parameter:int?}", "/template/5", 5)]
[InlineData("template/{parameter:int?}", "/template", null)]
[InlineData("template/{parameter:int?}", null, "asdf")]
[InlineData("template/{parameter:alpha?}", "/template/asdf", "asdf")]
[InlineData("template/{parameter:alpha?}", "/template", null)]
[InlineData("template/{parameter:int:range(1,20)?}", "/template", null)]
[InlineData("template/{parameter:int:range(1,20)?}", "/template/5", 5)]
[InlineData("template/{parameter:int:range(1,20)?}", null, 21)]
public void TreeRouter_GenerateLink_OptionalInlineParameter(
string template,
string expectedPath,
object parameter)
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, template);
var route = builder.Build();
VirtualPathContext context;
if (parameter != null)
{
context = CreateVirtualPathContext(values: null, ambientValues: new { parameter = parameter });
}
else
{
context = CreateVirtualPathContext(values: null, ambientValues: null);
}
// Act
var result = route.GetVirtualPath(context);
// Assert
if (expectedPath == null)
{
Assert.Null(result);
}
else
{
Assert.NotNull(result);
Assert.Equal(expectedPath, result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
}
[Theory]
[InlineData("template/5", "template/{parameter:int}")]
[InlineData("template/5", "template/{parameter}")]
[InlineData("template/5", "template/{*parameter:int}")]
[InlineData("template/5", "template/{*parameter}")]
[InlineData("template/{parameter:int}", "template/{parameter}")]
[InlineData("template/{parameter:int}", "template/{*parameter:int}")]
[InlineData("template/{parameter:int}", "template/{*parameter}")]
[InlineData("template/{parameter}", "template/{*parameter:int}")]
[InlineData("template/{parameter}", "template/{*parameter}")]
[InlineData("template/{*parameter:int}", "template/{*parameter}")]
public void TreeRouter_GenerateLink_RespectsOrderOverPrecedence(string firstTemplate, string secondTemplate)
{
// Arrange
var builder = CreateBuilder();
// We setup the route entries with a lower relative order and higher relative precedence
// first to ensure that when we try to generate a link, the route with the higher
// relative order gets tried first.
MapOutboundEntry(builder, firstTemplate, order: 1);
MapOutboundEntry(builder, secondTemplate, order: 0);
var route = builder.Build();
var context = CreateVirtualPathContext(null, ambientValues: new { parameter = 5 });
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal("/template/5", result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Theory]
[InlineData("template/5", "template/5")]
[InlineData("template/{first:int}", "template/{second:int}")]
[InlineData("template/{first}", "template/{second}")]
[InlineData("template/{*first:int}", "template/{*second:int}")]
[InlineData("template/{*first}", "template/{*second}")]
public void TreeRouter_GenerateLink_RespectsOrder(string firstTemplate, string secondTemplate)
{
// Arrange
var builder = CreateBuilder();
// We setup the route entries with a lower relative order first to ensure that when
// we try to generate a link, the route with the higher relative order gets tried first.
MapOutboundEntry(builder, firstTemplate, requiredValues: null, order: 1);
MapOutboundEntry(builder, secondTemplate, requiredValues: null, order: 0);
var route = builder.Build();
var context = CreateVirtualPathContext(values: null, ambientValues: new { first = 5, second = 5 });
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal("/template/5", result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Theory]
[InlineData("first/5", "second/5")]
[InlineData("first/{first:int}", "second/{second:int}")]
[InlineData("first/{first}", "second/{second}")]
[InlineData("first/{*first:int}", "second/{*second:int}")]
[InlineData("first/{*first}", "second/{*second}")]
public void TreeRouter_GenerateLink_EnsuresStableOrder(string firstTemplate, string secondTemplate)
{
// Arrange
var builder = CreateBuilder();
// We setup the route entries with a lower relative template order first to ensure that when
// we try to generate a link, the route with the higher template order gets tried first.
MapOutboundEntry(builder, secondTemplate, requiredValues: null, order: 0);
MapOutboundEntry(builder, firstTemplate, requiredValues: null, order: 0);
var route = builder.Build();
var context = CreateVirtualPathContext(values: null, ambientValues: new { first = 5, second = 5 });
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal("/first/5", result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_CreatesLinksForRoutesWithIntermediateDefaultRouteValues()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, template: "a/b/{parameter3=3}/d", requiredValues: null, order: 0);
var route = builder.Build();
var context = CreateVirtualPathContext(values: null, ambientValues: null);
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal("/a/b/3/d", result.VirtualPath);
}
[Fact]
public void TreeRouter_GeneratesLink_ForMultipleNamedEntriesWithTheSameTemplate()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "Template", name: "NamedEntry", order: 1);
MapOutboundEntry(builder, "TEMPLATE", name: "NamedEntry", order: 2);
// Act & Assert (does not throw)
builder.Build();
}
[Fact]
public void TreeRouter_GenerateLink_WithName()
{
// Arrange
var builder = CreateBuilder();
// The named route has a lower order which will ensure that we aren't trying the route as
// if it were an unnamed route.
MapOutboundEntry(builder, "named", requiredValues: null, order: 1, name: "NamedRoute");
MapOutboundEntry(builder, "unnamed", requiredValues: null, order: 0);
var route = builder.Build();
var context = CreateVirtualPathContext(values: null, ambientValues: null, name: "NamedRoute");
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal("/named", result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Fact]
public void TreeRouter_DoesNotGenerateLink_IfThereIsNoRouteForAGivenName()
{
// Arrange
var builder = CreateBuilder();
// The named route has a lower order which will ensure that we aren't trying the route as
// if it were an unnamed route.
MapOutboundEntry(builder, "named", requiredValues: null, order: 1, name: "NamedRoute");
// Add an unnamed entry to ensure we don't fall back to generating a link for an unnamed route.
MapOutboundEntry(builder, "unnamed", requiredValues: null, order: 0);
var route = builder.Build();
var context = CreateVirtualPathContext(values: null, ambientValues: null, name: "NonExistingNamedRoute");
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.Null(result);
}
[Theory]
[InlineData("template/{parameter:int}", null)]
[InlineData("template/{parameter:int}", "NaN")]
[InlineData("template/{parameter}", null)]
[InlineData("template/{*parameter:int}", null)]
[InlineData("template/{*parameter:int}", "NaN")]
public void TreeRouter_DoesNotGenerateLink_IfValuesDoNotMatchNamedEntry(string template, string value)
{
// Arrange
var builder = CreateBuilder();
// The named route has a lower order which will ensure that we aren't trying the route as
// if it were an unnamed route.
MapOutboundEntry(builder, template, requiredValues: null, order: 1, name: "NamedRoute");
// Add an unnamed entry to ensure we don't fall back to generating a link for an unnamed route.
MapOutboundEntry(builder, "unnamed", requiredValues: null, order: 0);
var route = builder.Build();
var ambientValues = value == null ? null : new { parameter = value };
var context = CreateVirtualPathContext(values: null, ambientValues: ambientValues, name: "NamedRoute");
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.Null(result);
}
[Theory]
[InlineData("template/{parameter:int}", "5")]
[InlineData("template/{parameter}", "5")]
[InlineData("template/{*parameter:int}", "5")]
[InlineData("template/{*parameter}", "5")]
public void TreeRouter_GeneratesLink_IfValuesMatchNamedEntry(string template, string value)
{
// Arrange
var builder = CreateBuilder();
// The named route has a lower order which will ensure that we aren't trying the route as
// if it were an unnamed route.
MapOutboundEntry(builder, template, requiredValues: null, order: 1, name: "NamedRoute");
// Add an unnamed entry to ensure we don't fall back to generating a link for an unnamed route.
MapOutboundEntry(builder, "unnamed", requiredValues: null, order: 0);
var route = builder.Build();
var ambientValues = value == null ? null : new { parameter = value };
var context = CreateVirtualPathContext(values: null, ambientValues: ambientValues, name: "NamedRoute");
// Act
var result = route.GetVirtualPath(context);
// Assert
Assert.NotNull(result);
Assert.Equal("/template/5", result.VirtualPath);
Assert.Same(route, result.Router);
Assert.Empty(result.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_NoRequiredValues()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store", new { });
var route = builder.Build();
var context = CreateVirtualPathContext(new { });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_Match()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store", new { action = "Index", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_NoMatch()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store", new { action = "Details", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index", controller = "Store" });
// Act
var path = route.GetVirtualPath(context);
// Assert
Assert.Null(path);
}
[Fact]
public void TreeRouter_GenerateLink_Match_WithAmbientValues()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store", new { action = "Index", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { }, new { action = "Index", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_Match_HasTwoOptionalParametersWithoutValues()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "Customers/SeparatePageModels/{handler?}/{id?}", new { page = "/Customers/SeparatePageModels/Index" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { page = "/Customers/SeparatePageModels/Index" }, new { page = "/Customers/SeparatePageModels/Edit", id = "17" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Customers/SeparatePageModels", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_Match_WithParameters()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store/{action}", new { action = "Index", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store/Index", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_Match_WithMoreParameters()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder,
"api/{area}/dosomething/{controller}/{action}",
new { action = "Index", controller = "Store", area = "AwesomeCo" });
var route = builder.Build();
var context = CreateVirtualPathContext(
new { action = "Index", controller = "Store" },
new { area = "AwesomeCo" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/AwesomeCo/dosomething/Store/Index", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_Match_WithDefault()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store/{action=Index}", new { action = "Index", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_Match_WithConstraint()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store/{action}/{id:int}", new { action = "Index", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index", controller = "Store", id = 5 });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store/Index/5", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_NoMatch_WithConstraint()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store/{action}/{id:int}", new { action = "Index", controller = "Store" });
var route = builder.Build();
var next = new StubRouter();
var context = CreateVirtualPathContext(new { action = "Index", controller = "Store", id = "heyyyy" });
// Act
var path = route.GetVirtualPath(context);
// Assert
Assert.Null(path);
}
[Fact]
public void TreeRouter_GenerateLink_Match_WithMixedAmbientValues()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store", new { action = "Index", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index" }, new { controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_Match_WithQueryString()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store", new { action = "Index", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index", id = 5 }, new { controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api/Store?id=5", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_RejectedByFirstRoute()
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, "api/Store", new { action = "Index", controller = "Store" });
MapOutboundEntry(builder, "api2/{controller}", new { action = "Index", controller = "Blog" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { action = "Index", controller = "Blog" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/api2/Blog", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_ToArea()
{
// Arrange
var builder = CreateBuilder();
var entry1 = MapOutboundEntry(builder, "Help/Store", new { area = "Help", action = "Edit", controller = "Store" });
entry1.Precedence = 2;
var entry2 = MapOutboundEntry(builder, "Store", new { area = (string)null, action = "Edit", controller = "Store" });
entry2.Precedence = 1;
var route = builder.Build();
var context = CreateVirtualPathContext(new { area = "Help", action = "Edit", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Help/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_ToArea_PredecedenceReversed()
{
// Arrange
var builder = CreateBuilder();
var entry1 = MapOutboundEntry(builder, "Help/Store", new { area = "Help", action = "Edit", controller = "Store" });
entry1.Precedence = 1;
var entry2 = MapOutboundEntry(builder, "Store", new { area = (string)null, action = "Edit", controller = "Store" });
entry2.Precedence = 2;
var route = builder.Build();
var context = CreateVirtualPathContext(new { area = "Help", action = "Edit", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Help/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_ToArea_WithAmbientValues()
{
// Arrange
var builder = CreateBuilder();
var entry1 = MapOutboundEntry(builder, "Help/Store", new { area = "Help", action = "Edit", controller = "Store" });
entry1.Precedence = 2;
var entry2 = MapOutboundEntry(builder, "Store", new { area = (string)null, action = "Edit", controller = "Store" });
entry2.Precedence = 1;
var route = builder.Build();
var context = CreateVirtualPathContext(
values: new { action = "Edit", controller = "Store" },
ambientValues: new { area = "Help" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Help/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_OutOfArea_IgnoresAmbientValue()
{
// Arrange
var builder = CreateBuilder();
var entry1 = MapOutboundEntry(builder, "Help/Store", new { area = "Help", action = "Edit", controller = "Store" });
entry1.Precedence = 2;
var entry2 = MapOutboundEntry(builder, "Store", new { area = (string)null, action = "Edit", controller = "Store" });
entry2.Precedence = 1;
var route = builder.Build();
var context = CreateVirtualPathContext(
values: new { action = "Edit", controller = "Store" },
ambientValues: new { area = "Blog" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
public static IEnumerable<object[]> OptionalParamValues
{
get
{
return new object[][]
{
// defaults
// ambient values
// values
new object[]
{
"Test/{val1}/{val2}.{val3?}",
new {val1 = "someval1", val2 = "someval2", val3 = "someval3a"},
new {val3 = "someval3v"},
"/Test/someval1/someval2.someval3v",
},
new object[]
{
"Test/{val1}/{val2}.{val3?}",
new {val3 = "someval3a"},
new {val1 = "someval1", val2 = "someval2", val3 = "someval3v" },
"/Test/someval1/someval2.someval3v",
},
new object[]
{
"Test/{val1}/{val2}.{val3?}",
null,
new {val1 = "someval1", val2 = "someval2" },
"/Test/someval1/someval2",
},
new object[]
{
"Test/{val1}.{val2}.{val3}.{val4?}",
new {val1 = "someval1", val2 = "someval2" },
new {val4 = "someval4", val3 = "someval3" },
"/Test/someval1.someval2.someval3.someval4",
},
new object[]
{
"Test/{val1}.{val2}.{val3}.{val4?}",
new {val1 = "someval1", val2 = "someval2" },
new {val3 = "someval3" },
"/Test/someval1.someval2.someval3",
},
new object[]
{
"Test/.{val2?}",
null,
new {val2 = "someval2" },
"/Test/.someval2",
},
new object[]
{
"Test/.{val2?}",
null,
null,
"/Test/",
},
new object[]
{
"Test/{val1}.{val2}",
new {val1 = "someval1", val2 = "someval2" },
new {val3 = "someval3" },
"/Test/someval1.someval2?val3=someval3",
},
};
}
}
[Theory]
[MemberData(nameof(OptionalParamValues))]
public void TreeRouter_GenerateLink_Match_WithOptionalParameters(
string template,
object ambientValues,
object values,
string expected)
{
// Arrange
var builder = CreateBuilder();
MapOutboundEntry(builder, template);
var route = builder.Build();
var context = CreateVirtualPathContext(values, ambientValues);
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal(expected, pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public async Task TreeRouter_ReplacesExistingRouteValues_IfNotNull()
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, "Foo/{*path}");
var route = builder.Build();
var context = CreateRouteContext("/Foo/Bar");
var originalRouteData = context.RouteData;
originalRouteData.Values.Add("path", "default");
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal("Bar", context.RouteData.Values["path"]);
}
[Fact]
public async Task TreeRouter_DoesNotReplaceExistingRouteValues_IfNull()
{
// Arrange
var builder = CreateBuilder();
MapInboundEntry(builder, "Foo/{*path}");
var route = builder.Build();
var context = CreateRouteContext("/Foo/");
var originalRouteData = context.RouteData;
originalRouteData.Values.Add("path", "default");
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal("default", context.RouteData.Values["path"]);
}
[Fact]
public async Task TreeRouter_SnapshotsRouteData()
{
// Arrange
RouteValueDictionary nestedValues = null;
List<IRouter> nestedRouters = null;
var next = new Mock<IRouter>();
next
.Setup(r => r.RouteAsync(It.IsAny<RouteContext>()))
.Callback<RouteContext>(c =>
{
nestedValues = new RouteValueDictionary(c.RouteData.Values);
nestedRouters = new List<IRouter>(c.RouteData.Routers);
c.Handler = null; // Not a match
})
.Returns(Task.CompletedTask);
var builder = CreateBuilder();
MapInboundEntry(builder, "api/Store", handler: next.Object);
var route = builder.Build();
var context = CreateRouteContext("/api/Store");
var routeData = context.RouteData;
routeData.Values.Add("action", "Index");
var originalValues = new RouteValueDictionary(context.RouteData.Values);
// Act
await route.RouteAsync(context);
// Assert
Assert.Equal(originalValues, context.RouteData.Values);
Assert.NotEqual(nestedValues, context.RouteData.Values);
}
[Fact]
public async Task TreeRouter_SnapshotsRouteData_ResetsWhenNotMatched()
{
// Arrange
RouteValueDictionary nestedValues = null;
List<IRouter> nestedRouters = null;
var next = new Mock<IRouter>();
next
.Setup(r => r.RouteAsync(It.IsAny<RouteContext>()))
.Callback<RouteContext>(c =>
{
nestedValues = new RouteValueDictionary(c.RouteData.Values);
nestedRouters = new List<IRouter>(c.RouteData.Routers);
c.Handler = null; // Not a match
})
.Returns(Task.CompletedTask);
var builder = CreateBuilder();
MapInboundEntry(builder, "api/Store", handler: next.Object);
var route = builder.Build();
var context = CreateRouteContext("/api/Store");
context.RouteData.Values.Add("action", "Index");
// Act
await route.RouteAsync(context);
// Assert
Assert.NotEqual(nestedValues, context.RouteData.Values);
// The new routedata is a copy
Assert.Equal("Index", context.RouteData.Values["action"]);
Assert.Equal("Index", nestedValues["action"]);
Assert.DoesNotContain(context.RouteData.Values, kvp => kvp.Key == "test_route_group");
Assert.Single(nestedValues, kvp => kvp.Key == "test_route_group");
Assert.Empty(context.RouteData.Routers);
Assert.Single(nestedRouters);
Assert.Equal(next.Object.GetType(), nestedRouters[0].GetType());
}
[Fact]
public async Task TreeRouter_SnapshotsRouteData_ResetsWhenThrows()
{
// Arrange
RouteValueDictionary nestedValues = null;
List<IRouter> nestedRouters = null;
var next = new Mock<IRouter>();
next
.Setup(r => r.RouteAsync(It.IsAny<RouteContext>()))
.Callback<RouteContext>(c =>
{
nestedValues = new RouteValueDictionary(c.RouteData.Values);
nestedRouters = new List<IRouter>(c.RouteData.Routers);
throw new Exception();
})
.Returns(Task.CompletedTask);
var builder = CreateBuilder();
MapInboundEntry(builder, "api/Store", handler: next.Object);
var route = builder.Build();
var context = CreateRouteContext("/api/Store");
context.RouteData.Values.Add("action", "Index");
// Act
await Assert.ThrowsAsync<Exception>(() => route.RouteAsync(context));
// Assert
Assert.NotEqual(nestedValues, context.RouteData.Values);
Assert.Equal("Index", context.RouteData.Values["action"]);
Assert.Equal("Index", nestedValues["action"]);
Assert.DoesNotContain(context.RouteData.Values, kvp => kvp.Key == "test_route_group");
Assert.Single(nestedValues, kvp => kvp.Key == "test_route_group");
Assert.Empty(context.RouteData.Routers);
Assert.Single(nestedRouters);
Assert.Equal(next.Object.GetType(), nestedRouters[0].GetType());
}
[Fact]
public async Task TreeRouter_SnapshotsRouteData_ResetsBeforeMatchingEachRouteEntry()
{
// This test replicates a scenario raised as issue https://github.com/aspnet/Routing/issues/394
// The RouteValueDictionary entries populated while matching route entries should not be left
// in place if the route entry turns out not to match, because that would leak unwanted state
// to subsequent route entries and might cause "An element with the key ... already exists"
// exceptions.
// Arrange
RouteValueDictionary nestedValues = null;
var next = new Mock<IRouter>();
next
.Setup(r => r.RouteAsync(It.IsAny<RouteContext>()))
.Callback<RouteContext>(c =>
{
nestedValues = new RouteValueDictionary(c.RouteData.Values);
c.Handler = NullHandler;
})
.Returns(Task.CompletedTask);
var builder = CreateBuilder();
MapInboundEntry(builder, "cat_{category1}/prod1_{product}"); // Matches on first segment but not on second
MapInboundEntry(builder, "cat_{category2}/prod2_{product}", handler: next.Object);
var route = builder.Build();
var context = CreateRouteContext("/cat_examplecategory/prod2_exampleproduct");
// Act
await route.RouteAsync(context);
// Assert
Assert.NotNull(nestedValues);
Assert.Equal("examplecategory", nestedValues["category2"]);
Assert.Equal("exampleproduct", nestedValues["product"]);
Assert.DoesNotContain(nestedValues, kvp => kvp.Key == "category1");
}
[Fact]
public void TreeRouter_GenerateLink_MatchesNullRequiredValue_WithNullRequestValueString()
{
// Arrange
var builder = CreateBuilder();
var entry = MapOutboundEntry(
builder,
"Help/Store",
requiredValues: new { area = (string)null, action = "Edit", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { area = (string)null, action = "Edit", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Help/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_MatchesNullRequiredValue_WithEmptyRequestValueString()
{
// Arrange
var builder = CreateBuilder();
var entry = MapOutboundEntry(
builder,
"Help/Store",
requiredValues: new { area = (string)null, action = "Edit", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { area = "", action = "Edit", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Help/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_MatchesEmptyStringRequiredValue_WithNullRequestValueString()
{
// Arrange
var builder = CreateBuilder();
var entry = MapOutboundEntry(
builder,
"Help/Store",
requiredValues: new { foo = "", action = "Edit", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { foo = (string)null, action = "Edit", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Help/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
[Fact]
public void TreeRouter_GenerateLink_MatchesEmptyStringRequiredValue_WithEmptyRequestValueString()
{
// Arrange
var builder = CreateBuilder();
var entry = MapOutboundEntry(
builder,
"Help/Store",
requiredValues: new { foo = "", action = "Edit", controller = "Store" });
var route = builder.Build();
var context = CreateVirtualPathContext(new { foo = "", action = "Edit", controller = "Store" });
// Act
var pathData = route.GetVirtualPath(context);
// Assert
Assert.NotNull(pathData);
Assert.Equal("/Help/Store", pathData.VirtualPath);
Assert.Same(route, pathData.Router);
Assert.Empty(pathData.DataTokens);
}
private static RouteContext CreateRouteContext(string requestPath)
{
var request = new Mock<HttpRequest>(MockBehavior.Strict);
request.SetupGet(r => r.Path).Returns(new PathString(requestPath));
var context = new Mock<HttpContext>(MockBehavior.Strict);
context.Setup(m => m.RequestServices.GetService(typeof(ILoggerFactory)))
.Returns(NullLoggerFactory.Instance);
context.SetupGet(c => c.Request).Returns(request.Object);
return new RouteContext(context.Object);
}
private static VirtualPathContext CreateVirtualPathContext(
object values,
object ambientValues = null,
string name = null)
{
var mockHttpContext = new Mock<HttpContext>();
mockHttpContext.Setup(h => h.RequestServices.GetService(typeof(ILoggerFactory)))
.Returns(NullLoggerFactory.Instance);
return new VirtualPathContext(
mockHttpContext.Object,
new RouteValueDictionary(ambientValues),
new RouteValueDictionary(values),
name);
}
private static InboundRouteEntry MapInboundEntry(
TreeRouteBuilder builder,
string template,
int order = 0,
IRouter handler = null)
{
var entry = builder.MapInbound(
handler ?? new StubRouter(),
TemplateParser.Parse(template),
routeName: null,
order: order);
// Add a generated 'route group' so we can identify later which entry matched.
entry.Defaults["test_route_group"] = CreateRouteGroup(order, template);
return entry;
}
private static OutboundRouteEntry MapOutboundEntry(
TreeRouteBuilder builder,
string template,
object requiredValues = null,
int order = 0,
string name = null,
IRouter handler = null)
{
var entry = builder.MapOutbound(
handler ?? new StubRouter(),
TemplateParser.Parse(template),
requiredLinkValues: new RouteValueDictionary(requiredValues),
routeName: name,
order: order);
// Add a generated 'route group' so we can identify later which entry matched.
entry.Defaults["test_route_group"] = CreateRouteGroup(order, template);
return entry;
}
private static string CreateRouteGroup(int order, string template)
{
return string.Format(CultureInfo.InvariantCulture, "{0}&{1}", order, template);
}
private static DefaultInlineConstraintResolver CreateConstraintResolver()
{
var options = new RouteOptions();
options.SetParameterPolicy<RegexInlineRouteConstraint>("regex");
var optionsMock = new Mock<IOptions<RouteOptions>>();
optionsMock.SetupGet(o => o.Value).Returns(options);
return new DefaultInlineConstraintResolver(optionsMock.Object, new TestServiceProvider());
}
private static TreeRouteBuilder CreateBuilder()
{
var objectPoolProvider = new DefaultObjectPoolProvider();
var objectPolicy = new UriBuilderContextPooledObjectPolicy();
var objectPool = objectPoolProvider.Create<UriBuildingContext>(objectPolicy);
var constraintResolver = CreateConstraintResolver();
var builder = new TreeRouteBuilder(
NullLoggerFactory.Instance,
objectPool,
constraintResolver);
return builder;
}
private static TreeRouter CreateTreeRouter(
string firstTemplate,
string secondTemplate)
{
var builder = CreateBuilder();
MapOutboundEntry(builder, firstTemplate);
MapOutboundEntry(builder, secondTemplate);
return builder.Build();
}
private class StubRouter : IRouter
{
public VirtualPathContext GenerationContext { get; set; }
public RouteContext MatchingContext { get; set; }
public Func<RouteContext, bool> MatchingDelegate { get; set; }
public VirtualPathData GetVirtualPath(VirtualPathContext context)
{
GenerationContext = context;
return null;
}
public Task RouteAsync(RouteContext context)
{
if (MatchingDelegate == null)
{
context.Handler = NullHandler;
}
else
{
context.Handler = MatchingDelegate(context) ? NullHandler : null;
}
return Task.FromResult(true);
}
}
}
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