// 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 BreakKeywordRecommenderTests : KeywordRecommenderTests
{
    [Fact]
    public async Task TestNotAtRoot()
    {
        await VerifyAbsenceAsync(
@"$$", options: CSharp9ParseOptions);
    }
 
    [Fact]
    public async Task TestNotAfterClass_Interactive()
    {
        await VerifyAbsenceAsync(SourceCodeKind.Script,
            """
            class C { }
            $$
            """);
    }
 
    [Fact]
    public async Task TestNotAfterGlobalStatement()
    {
        await VerifyAbsenceAsync(
            """
            System.Console.WriteLine();
            $$
            """, options: CSharp9ParseOptions);
    }
 
    [Fact]
    public async Task TestNotAfterGlobalVariableDeclaration()
    {
        await VerifyAbsenceAsync(
            """
            int i = 0;
            $$
            """, options: CSharp9ParseOptions);
    }
 
    [Fact]
    public async Task TestNotInUsingAlias()
    {
        await VerifyAbsenceAsync(
@"using Goo = $$");
    }
 
    [Fact]
    public async Task TestNotInGlobalUsingAlias()
    {
        await VerifyAbsenceAsync(
@"global using Goo = $$");
    }
 
    [Theory, CombinatorialData]
    public async Task TestEmptyStatement(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
@"$$", topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestBeforeStatement(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
            """
            $$
            return true;
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterStatement(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
            """
            return true;
            $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterBlock(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
            """
            if (true) {
            }
            $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterIf(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
            """
            if (true) 
                $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterDo(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            do 
                $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterWhile(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            while (true) 
                $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterFor(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            for (int i = 0; i < 10; i++) 
                $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterForeach(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            foreach (var v in bar)
                $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestNotInsideLambda(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
            """
            foreach (var v in bar) {
               var d = () => {
                 $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestNotInsideAnonymousMethod(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
            """
            foreach (var v in bar) {
               var d = delegate {
                 $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestInsideSwitch(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            switch (a) {
                case 0:
                   $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestNotInsideSwitchWithLambda(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
            """
            switch (a) {
                case 0:
                  var d = () => {
                    $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestInsideSwitchOutsideLambda(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            switch (a) {
                case 0:
                  var d = () => {
                  };
                  $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestNotAfterBreak(bool topLevelStatement)
    {
        await VerifyAbsenceAsync(AddInsideMethod(
@"break $$", topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Fact]
    public async Task TestNotInClass()
    {
        await VerifyAbsenceAsync("""
            class C
            {
              $$
            }
            """);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterYield(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
@"yield $$", topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterSwitchInSwitch(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            switch (expr) {
                default:
                  switch (expr) {
                  }
                  $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
 
    [Theory, CombinatorialData]
    public async Task TestAfterBlockInSwitch(bool topLevelStatement)
    {
        await VerifyKeywordAsync(AddInsideMethod(
            """
            switch (expr) {
                default:
                  {
                  }
                  $$
            """, topLevelStatement: topLevelStatement), options: CSharp9ParseOptions);
    }
}