// 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.Threading.Tasks;
using Microsoft.CodeAnalysis.Test.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.Recommendations;
 
[Trait(Traits.Feature, Traits.Features.KeywordRecommending)]
public sealed class GotoKeywordRecommenderTests : KeywordRecommenderTests
{
    [Fact]
    public Task TestAtRoot_Interactive()
        => VerifyKeywordAsync(SourceCodeKind.Script,
@"$$");
 
    [Fact]
    public Task TestAfterClass_Interactive()
        => VerifyKeywordAsync(SourceCodeKind.Script,
            """
            class C { }
            $$
            """);
 
    [Fact]
    public Task TestAfterGlobalStatement()
        => VerifyKeywordAsync(
            """
            System.Console.WriteLine();
            $$
            """);
 
    [Fact]
    public Task TestAfterGlobalVariableDeclaration_Interactive()
        => VerifyKeywordAsync(SourceCodeKind.Script,
            """
            int i = 0;
            $$
            """);
 
    [Fact]
    public Task TestNotInUsingAlias()
        => VerifyAbsenceAsync(
@"using Goo = $$");
 
    [Fact]
    public Task TestNotInGlobalUsingAlias()
        => VerifyAbsenceAsync(
@"global using Goo = $$");
 
    [Fact]
    public Task TestEmptyStatement()
        => VerifyKeywordAsync(AddInsideMethod(
@"$$"));
 
    [Fact]
    public Task TestBeforeStatement()
        => VerifyKeywordAsync(AddInsideMethod(
            """
            $$
            return true;
            """));
 
    [Fact]
    public Task TestAfterStatement()
        => VerifyKeywordAsync(AddInsideMethod(
            """
            return true;
            $$
            """));
 
    [Fact]
    public Task TestAfterBlock()
        => VerifyKeywordAsync(AddInsideMethod(
            """
            if (true) {
            }
            $$
            """));
 
    [Fact]
    public Task TestNotAfterGoto()
        => VerifyAbsenceAsync(AddInsideMethod(
@"goto $$"));
 
    [Fact]
    public Task TestNotInClass()
        => VerifyAbsenceAsync(
            """
            class C
            {
              $$
            }
            """);
 
    [Fact]
    public Task TestAfterAssignment()
        => VerifyKeywordAsync(AddInsideMethod(
            """
            if (b != 0) {
                count <<= 2;
                char[] newBuffer = new char[count];
                for (int copy = 0; copy < j; copy++)
                  newBuffer[copy] = buffer[copy];
                buffer = newBuffer;
                $$ Restart;
              }
            """));
}