// 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.CodeStyle;
using Microsoft.CodeAnalysis.CSharp.NewLines.MultipleBlankLines;
using Microsoft.CodeAnalysis.Editor.UnitTests.CodeActions;
using Microsoft.CodeAnalysis.NewLines.MultipleBlankLines;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.NewLines.MultipleBlankLines;
 
using Verify = CSharpCodeFixVerifier<
    CSharpMultipleBlankLinesDiagnosticAnalyzer,
    MultipleBlankLinesCodeFixProvider>;
 
public class MultipleBlankLinesTests
{
    [Fact]
    public async Task TestOneBlankLineAtTopOfFile()
    {
        var code =
@"
// comment";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineAtTopOfFile()
    {
        var code =
@"[||]
 
// comment";
        var fixedCode =
@"
// comment";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineAtTopOfFile_NotWithOptionOff()
    {
        var code =
@"
 
// comment";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.TrueWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLineAtTopOfFile()
    {
        var code =
@"[||]
 
 
// comment";
        var fixedCode =
@"
// comment";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLineAtTopOfFile()
    {
        var code =
@"[||]
 
 
 
// comment";
        var fixedCode =
@"
// comment";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestOneBlankLineAtTopOfEmptyFile()
    {
        var code =
@"
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLinesAtTopOfEmptyFile()
    {
        var code =
@"[||]
 
";
        var fixedCode =
@"
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLinesAtTopOfEmptyFile()
    {
        var code =
@"[||]
 
 
";
        var fixedCode =
@"
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLinesAtTopOfEmptyFile()
    {
        var code =
@"[||]
 
 
 
";
        var fixedCode =
@"
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestNoBlankLineAtEndOfFile_1()
    {
        var code =
@"class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestNoBlankLineAtEndOfFile_2()
    {
        var code =
@"class C
{
}
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestOneBlankLineAtEndOfFile()
    {
        var code =
@"class C
{
}
 
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineAtEndOfFile()
    {
        var code =
@"class C
{
}
[||]
 
";
        var fixedCode =
@"class C
{
}
 
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLineAtEndOfFile()
    {
        var code =
@"class C
{
}
[||]
 
 
";
        var fixedCode =
@"class C
{
}
 
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLineAtEndOfFile()
    {
        var code =
@"class C
{
}
[||]
 
 
 
";
        var fixedCode =
@"class C
{
}
 
";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestNoBlankLineBetweenTokens()
    {
        var code =
@"class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestOneBlankLineBetweenTokens()
    {
        var code =
@"class C
{
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineBetweenTokens()
    {
        var code =
@"class C
{
[||]
 
}";
        var fixedCode =
@"class C
{
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLineBetweenTokens()
    {
        var code =
@"class C
{
[||]
 
 
}";
        var fixedCode =
@"class C
{
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLineBetweenTokens()
    {
        var code =
@"class C
{
[||]
 
 
 
}";
        var fixedCode =
@"class C
{
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestNoBlankLineAfterComment()
    {
        var code =
@"class C
{
    // comment
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestOneBlankLineAfterComment()
    {
        var code =
@"class C
{
    // comment
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineAfterComment()
    {
        var code =
@"class C
{
    // comment
[||]
 
}";
        var fixedCode =
@"class C
{
    // comment
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLineAfterComment()
    {
        var code =
@"class C
{
    // comment
[||]
 
 
}";
        var fixedCode =
@"class C
{
    // comment
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLineAfterComment()
    {
        var code =
@"class C
{
    // comment
[||]
 
 
}";
        var fixedCode =
@"class C
{
    // comment
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestNoBlankLineAfterDirective()
    {
        var code =
@"class C
{
    #nullable enable
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestOneBlankLineAfterDirective()
    {
        var code =
@"class C
{
    #nullable enable
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineAfterDirective()
    {
        var code =
@"class C
{
    #nullable enable
[||]
 
}";
        var fixedCode =
@"class C
{
    #nullable enable
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLineAfterDirective()
    {
        var code =
@"class C
{
    #nullable enable
[||]
 
 
}";
        var fixedCode =
@"class C
{
    #nullable enable
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLineAfterDirective()
    {
        var code =
@"class C
{
    #nullable enable
[||]
 
 
}";
        var fixedCode =
@"class C
{
    #nullable enable
 
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestNoBlankLineAfterDocComment()
    {
        var code =
@"
/// <summary/>
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestOneBlankLineAfterDocComment()
    {
        var code =
@"
/// <summary/>
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineAfterDocComment()
    {
        var code =
@"
/// <summary/>
[||]
 
class C
{
}";
        var fixedCode =
@"
/// <summary/>
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLineAfterDocComment()
    {
        var code =
@"
/// <summary/>
[||]
 
 
class C
{
}";
        var fixedCode =
@"
/// <summary/>
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLineAfterDocComment()
    {
        var code =
@"
/// <summary/>
[||]
 
 
 
class C
{
}";
        var fixedCode =
@"
/// <summary/>
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestNoBlankLineAllConstructs()
    {
        var code =
@"/// <summary/>
//
#nullable enable
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestOneBlankLineAllConstructs()
    {
        var code =
@"
/// <summary/>
 
//
 
#nullable enable
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = code,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestTwoBlankLineAllConstructs()
    {
        var code =
@"[||]
 
/// <summary/>
 
 
//
 
 
#nullable enable
 
 
class C
{
}";
        var fixedCode =
@"
/// <summary/>
 
//
 
#nullable enable
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestThreeBlankLineAllConstructs()
    {
        var code =
@"[||]
 
 
/// <summary/>
 
 
 
//
 
 
 
#nullable enable
 
 
 
class C
{
}";
        var fixedCode =
@"
/// <summary/>
 
//
 
#nullable enable
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
 
    [Fact]
    public async Task TestFourBlankLineAllConstructs()
    {
        var code =
@"[||]
 
 
 
/// <summary/>
 
 
 
 
//
 
 
 
 
#nullable enable
 
 
 
 
class C
{
}";
        var fixedCode =
@"
/// <summary/>
 
//
 
#nullable enable
 
class C
{
}";
 
        await new Verify.Test
        {
            TestCode = code,
            FixedCode = fixedCode,
            LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,
            Options = { { CodeStyleOptions2.AllowMultipleBlankLines, CodeStyleOption2.FalseWithSuggestionEnforcement } }
        }.RunAsync();
    }
}