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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 Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Testing;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using Moq;
using Xunit;
namespace Microsoft.AspNetCore.Routing.Tests
{
public class TemplateParserDefaultValuesTests
{
private static readonly IInlineConstraintResolver _inlineConstraintResolver = GetInlineConstraintResolver();
[Fact]
public void InlineDefaultValueSpecified_InlineValueIsUsed()
{
// Arrange & Act
var routeBuilder = CreateRouteBuilder();
// Act
routeBuilder.MapRoute("mockName",
"{controller}/{action}/{id:int=12}",
defaults: null,
constraints: null);
// Assert
var defaults = ((Route)routeBuilder.Routes[0]).Defaults;
Assert.Equal("12", defaults["id"]);
}
[Theory]
[InlineData(@"{controller}/{action}/{p1:regex(([}}])\w+)=}}asd}", "}asd")]
[InlineData(@"{p1:regex(^\d{{1,2}}\/\d{{1,2}}\/\d{{4}}$)=12/12/1234}", @"12/12/1234")]
public void InlineDefaultValueSpecified_WithSpecialCharacters(string template, string value)
{
// Arrange & Act
var routeBuilder = CreateRouteBuilder();
// Act
routeBuilder.MapRoute("mockName",
template,
defaults: null,
constraints: null);
// Assert
var defaults = ((Route)routeBuilder.Routes[0]).Defaults;
Assert.Equal(value, defaults["p1"]);
}
[Fact]
public void ExplicitDefaultValueSpecified_WithInlineDefaultValue_Throws()
{
// Arrange
var routeBuilder = CreateRouteBuilder();
// Act & Assert
var ex = Assert.Throws<RouteCreationException>(
() => routeBuilder.MapRoute("mockName",
"{controller}/{action}/{id:int=12}",
defaults: new { id = 13 },
constraints: null));
var message = "An error occurred while creating the route with name 'mockName' and template" +
" '{controller}/{action}/{id:int=12}'.";
Assert.Equal(message, ex.Message);
Assert.NotNull(ex.InnerException);
message = "The route parameter 'id' has both an inline default value and an explicit default" +
" value specified. A route parameter cannot contain an inline default value when" +
" a default value is specified explicitly. Consider removing one of them.";
Assert.Equal(message, ex.InnerException.Message);
}
[Fact]
[ReplaceCulture]
public void EmptyDefaultValue_WithOptionalParameter_Throws()
{
// Arrange
var routeBuilder = CreateRouteBuilder();
// Act & Assert
var ex = Assert.Throws<RouteCreationException>(
() => routeBuilder.MapRoute("mockName",
"{controller}/{action}/{id:int=?}",
defaults: new { id = 13 },
constraints: null));
var message = "An error occurred while creating the route with name 'mockName' and template" +
" '{controller}/{action}/{id:int=?}'.";
Assert.Equal(message, ex.Message);
Assert.NotNull(ex.InnerException);
message = "An optional parameter cannot have default value. (Parameter 'routeTemplate')";
Assert.Equal(message, ex.InnerException.Message);
}
[Fact]
[ReplaceCulture]
public void NonEmptyDefaultValue_WithOptionalParameter_Throws()
{
// Arrange
var routeBuilder = CreateRouteBuilder();
// Act & Assert
var ex = Assert.Throws<RouteCreationException>(() =>
{
routeBuilder.MapRoute(
"mockName",
"{controller}/{action}/{id:int=12?}",
defaults: new { id = 13 },
constraints: null);
});
var message = "An error occurred while creating the route with name 'mockName' and template" +
" '{controller}/{action}/{id:int=12?}'.";
Assert.Equal(message, ex.Message);
Assert.NotNull(ex.InnerException);
message = "An optional parameter cannot have default value. (Parameter 'routeTemplate')";
Assert.Equal(message, ex.InnerException.Message);
}
private static IRouteBuilder CreateRouteBuilder()
{
var services = new ServiceCollection();
services.AddSingleton<IInlineConstraintResolver>(_inlineConstraintResolver);
services.AddSingleton<RoutingMarkerService>();
services.AddSingleton<ParameterPolicyFactory, DefaultParameterPolicyFactory>();
services.Configure<RouteOptions>(options => { });
var applicationBuilder = Mock.Of<IApplicationBuilder>();
applicationBuilder.ApplicationServices = services.BuildServiceProvider();
var routeBuilder = new RouteBuilder(applicationBuilder);
routeBuilder.DefaultHandler = Mock.Of<IRouter>();
return routeBuilder;
}
private static IInlineConstraintResolver GetInlineConstraintResolver()
{
var services = new ServiceCollection().AddOptions();
var serviceProvider = services.BuildServiceProvider();
var accessor = serviceProvider.GetRequiredService<IOptions<RouteOptions>>();
return new DefaultInlineConstraintResolver(accessor, serviceProvider);
}
}
}
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