// 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 System;
using System.IO;
using Xunit;

namespace Microsoft.Framework.WebEncoders
{
    public class EncoderExtensionsTests
    {
        [Fact]
        public void HtmlEncode_ParameterChecks()
        {
            Assert.Throws<ArgumentNullException>(() => EncoderExtensions.HtmlEncode(null, "Hello!", new StringWriter()));
        }

        [Fact]
        public void HtmlEncode_PositiveTestCase()
        {
            // Arrange
            IHtmlEncoder encoder = new HtmlEncoder(UnicodeRanges.All);
            StringWriter writer = new StringWriter();

            // Act
            encoder.HtmlEncode("Hello+there!", writer);

            // Assert
            Assert.Equal("Hello&#x2B;there!", writer.ToString());
        }

        [Fact]
        public void JavaScriptStringEncode_ParameterChecks()
        {
            Assert.Throws<ArgumentNullException>(() => EncoderExtensions.JavaScriptStringEncode(null, "Hello!", new StringWriter()));
        }

        [Fact]
        public void JavaScriptStringEncode_PositiveTestCase()
        {
            // Arrange
            IJavaScriptStringEncoder encoder = new JavaScriptStringEncoder(UnicodeRanges.All);
            StringWriter writer = new StringWriter();

            // Act
            encoder.JavaScriptStringEncode("Hello+there!", writer);

            // Assert
            Assert.Equal(@"Hello\u002Bthere!", writer.ToString());
        }

        [Fact]
        public void UrlEncode_ParameterChecks()
        {
            Assert.Throws<ArgumentNullException>(() => EncoderExtensions.UrlEncode(null, "Hello!", new StringWriter()));
        }

        [Fact]
        public void UrlEncode_PositiveTestCase()
        {
            // Arrange
            IUrlEncoder encoder = new UrlEncoder(UnicodeRanges.All);
            StringWriter writer = new StringWriter();

            // Act
            encoder.UrlEncode("Hello+there!", writer);

            // Assert
            Assert.Equal("Hello%2Bthere!", writer.ToString());
        }
    }
}