// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System.Collections.Immutable;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeActions;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CSharp.CodeFixes.FullyQualify;
using Microsoft.CodeAnalysis.CSharp.Diagnostics;
using Microsoft.CodeAnalysis.Diagnostics;
using Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.Diagnostics;
using Microsoft.CodeAnalysis.Test.Utilities;
using Roslyn.Test.Utilities;
using Xunit;
using Xunit.Abstractions;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.FullyQualify;
 
[Trait(Traits.Feature, Traits.Features.CodeActionsFullyQualify)]
public sealed class FullyQualifyUnboundIdentifierTests : AbstractCSharpDiagnosticProviderBasedUserDiagnosticTest_NoEditor
{
    public FullyQualifyUnboundIdentifierTests(ITestOutputHelper logger)
       : base(logger)
    {
    }
 
    internal override (DiagnosticAnalyzer?, CodeFixProvider) CreateDiagnosticProviderAndFixer(Workspace workspace)
        => (new CSharpUnboundIdentifiersDiagnosticAnalyzer(), new CSharpFullyQualifyCodeFixProvider());
 
    protected override ImmutableArray<CodeAction> MassageActions(ImmutableArray<CodeAction> actions)
        => FlattenActions(actions);
 
    [Fact, WorkItem("https://github.com/dotnet/roslyn/issues/26887")]
    public Task TestFullyQualifyUnboundIdentifier1()
        => TestInRegularAndScriptAsync(
            """
            public class Program
            {
                public class Inner
                {
                }
            }
 
            class Test
            {
                [|Inner|]
            }
            """,
            """
            public class Program
            {
                public class Inner
                {
                }
            }
 
            class Test
            {
                Program.Inner
            }
            """);
 
    [Fact, WorkItem("https://github.com/dotnet/roslyn/issues/26887")]
    public Task TestFullyQualifyUnboundIdentifier2()
        => TestInRegularAndScriptAsync(
            """
            public class Program
            {
                public class Inner
                {
                }
            }
 
            class Test
            {
                public [|Inner|]
            }
            """,
            """
            public class Program
            {
                public class Inner
                {
                }
            }
 
            class Test
            {
                public Program.Inner
            }
            """);
}