StyleCopAnalyzers/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp10/OrderingRules/SA1209CSharp10UnitTests.cs at 99a6955a16ede40f508d941771f9f62cf607d2b9 · DotNetAnalyzers/StyleCopAnalyzers · GitHub

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// Copyright (c) Tunnel Vision Laboratories, LLC. All Rights Reserved.
// Licensed under the MIT License. See LICENSE in the project root for license information.

namespace StyleCop.Analyzers.Test.CSharp10.OrderingRules
{
    using System.Threading;
    using System.Threading.Tasks;
    using Microsoft.CodeAnalysis.Testing;
    using StyleCop.Analyzers.Test.CSharp9.OrderingRules;
    using Xunit;
    using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
        StyleCop.Analyzers.OrderingRules.SA1209UsingAliasDirectivesMustBePlacedAfterOtherUsingDirectives,
        StyleCop.Analyzers.OrderingRules.UsingCodeFixProvider>;

    public partial class SA1209CSharp10UnitTests : SA1209CSharp9UnitTests
    {
        [Fact]
        [WorkItem(3439, "https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/3439")]
        public async Task TestWhenUsingAliasDirectivesAreNotPlacedCorrectlyInFileScopedNamespaceAsync()
        {
            var testCodeNamespace = @"namespace Test;

using System.Net;
using System.Threading;
[|using L = System.Linq;|]
using System.IO;
using P = System.Threading.Tasks;

class A
{
}
";
            var fixedTestCodeNamespace = @"namespace Test;

using System.IO;
using System.Net;
using System.Threading;
using L = System.Linq;
using P = System.Threading.Tasks;

class A
{
}
";

            await VerifyCSharpFixAsync(testCodeNamespace, DiagnosticResult.EmptyDiagnosticResults, fixedTestCodeNamespace, CancellationToken.None).ConfigureAwait(false);
        }

        [Fact]
        [WorkItem(3964, "https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/3964")]
        public async Task TestWhenGlobalUsingAliasDirectivesAreNotPlacedCorrectlyAsync()
        {
            await new CSharpTest
            {
                TestSources =
                {
                    "namespace Xyz {}",
                    "namespace AnotherNamespace {}",
                    @"
{|#0:global using Alias = System.Threading.Tasks;|}
global using System;
global using AnotherNamespace;
global using System.Threading;

class A
{
}",
                },
                FixedSources =
                {
                    "namespace Xyz {}",
                    "namespace AnotherNamespace {}",
                    @"
global using System;
global using System.Threading;
global using AnotherNamespace;
global using Alias = System.Threading.Tasks;

class A
{
}",
                },
                ExpectedDiagnostics =
                {
                    Diagnostic().WithLocation(0),
                },
            }.RunAsync(CancellationToken.None).ConfigureAwait(false);
        }

        [Fact]
        [WorkItem(3964, "https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/3964")]
        public async Task TestGlobalUsingAliasDirectivesAreAnalyzedIndependentlyFromLocalUsingDirectivesAsync()
        {
            var testCode = @"global using Alias = System.IO;

using System;

namespace Xyz
{
    public class Placeholder
    {
    }
}

class TestClass
{
}";

            await VerifyCSharpDiagnosticAsync(testCode, DiagnosticResult.EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
        }

        [Fact]
        [WorkItem(3982, "https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/3982")]
        public async Task TestAliasOrderingIsIndependentForGlobalAndLocalUsingDirectivesAsync()
        {
            await new CSharpTest
            {
                TestSources =
                {
                    @"
{|#0:global using Alias = System.Console;|}
global using System;
global using System.Threading;

{|#1:using AliasLocal = System.Text.StringBuilder;|}
using System;
using System.IO;
",
                },
                FixedSources =
                {
                    @"
global using System;
global using System.Threading;
global using Alias = System.Console;

using System;
using System.IO;
using AliasLocal = System.Text.StringBuilder;
",
                },
                ExpectedDiagnostics =
                {
                    Diagnostic().WithLocation(0),
                    Diagnostic().WithLocation(1),
                },
            }.RunAsync(CancellationToken.None).ConfigureAwait(false);
        }
    }
}