// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using Xunit;

namespace Microsoft.AspNetCore.Routing.Constraints
{
    public class FileNameRouteConstraintTest
    {
        public static TheoryData<object> FileNameData
        {
            get
            {
                return new TheoryData<object>()
                {
                    "hello.txt",
                    "hello.txt.jpg",
                    "/hello.t",
                    "/////hello.x",
                    "a/b/c/d.e",
                    "a/b./.c/d.e",
                    ".gitnore",
                    ".a",
                    "/.......a"
                };
            }
        }


        [Theory]
        [MemberData(nameof(FileNameData))]
        public void Match_RouteValue_IsFileName(object value)
        {
            // Arrange
            var constraint = new FileNameRouteConstraint();

            var values = new RouteValueDictionary();
            values.Add("path", value);

            // Act
            var result = constraint.Match(httpContext: null, route: null, "path", values, RouteDirection.IncomingRequest);

            // Assert
            Assert.True(result);
        }

        public static TheoryData<object> NonFileNameData
        {
            get
            {
                return new TheoryData<object>()
                {
                    null,
                    string.Empty,
                    "/",
                    ".",
                    "..........",
                    "hello.",
                    "/hello",
                    "//",
                    "//b.c/",
                    "/////hello.",
                    "a/b./.c/d.",
                };
            }
        }

        [Theory]
        [MemberData(nameof(NonFileNameData))]
        public void Match_RouteValue_IsNotFileName(object value)
        {
            // Arrange
            var constraint = new FileNameRouteConstraint();

            var values = new RouteValueDictionary();
            values.Add("path", value);

            // Act
            var result = constraint.Match(httpContext: null, route: null, "path", values, RouteDirection.IncomingRequest);

            // Assert
            Assert.False(result);
        }

        [Fact]
        public void Match_MissingValue_IsNotFileName()
        {
            // Arrange
            var constraint = new FileNameRouteConstraint();

            var values = new RouteValueDictionary();

            // Act
            var result = constraint.Match(httpContext: null, route: null, "path", values, RouteDirection.IncomingRequest);

            // Assert
            Assert.False(result);
        }
    }
}
