// 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.
 
#nullable disable
 
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Test.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.CSharp.UnitTests.Formatting;
 
[Trait(Traits.Feature, Traits.Features.Formatting)]
public sealed class FormattingTests_FunctionPointers : CSharpFormattingTestBase
{
    [Fact]
    public Task FormatFunctionPointer()
        => AssertFormatAsync("""
            unsafe class C
            {
                delegate*<int, int> functionPointer;
            }
            """, """
            unsafe class C
            {
                delegate * < int ,  int > functionPointer;
            }
            """);
 
    [Fact]
    public Task FormatFunctionPointerWithManagedCallingConvention()
        => AssertFormatAsync("""
            unsafe class C
            {
                delegate* managed<int, int> functionPointer;
            }
            """, """
            unsafe class C
            {
                delegate *managed < int ,  int > functionPointer;
            }
            """);
 
    [Fact]
    public Task FormatFunctionPointerWithUnmanagedCallingConvention()
        => AssertFormatAsync("""
            unsafe class C
            {
                delegate* unmanaged<int, int> functionPointer;
            }
            """, """
            unsafe class C
            {
                delegate *unmanaged < int ,  int > functionPointer;
            }
            """);
 
    [Fact]
    public Task FormatFunctionPointerWithUnmanagedCallingConventionAndSpecifiers()
        => AssertFormatAsync("""
            unsafe class C
            {
                delegate* unmanaged[Cdecl, Thiscall]<int, int> functionPointer;
            }
            """, """
            unsafe class C
            {
                delegate *unmanaged [ Cdecl ,  Thiscall ] < int ,  int > functionPointer;
            }
            """);
 
    [Fact]
    public Task FormatFunctionPointerWithUnrecognizedCallingConvention()
        => AssertFormatAsync("""
            unsafe class C
            {
                delegate*invalid <int, int> functionPointer;
            }
            """, """
            unsafe class C
            {
                delegate *invalid < int ,  int > functionPointer;
            }
            """);
 
    [Fact]
    public Task FormatFunctionPointerWithInvalidCallingConventionAndSpecifiers()
        => AssertFormatAsync("""
            unsafe class C
            {
                delegate*invalid [Cdecl, Thiscall]<int, int> functionPointer;
            }
            """, """
            unsafe class C
            {
                delegate *invalid [ Cdecl ,  Thiscall ] < int ,  int > functionPointer;
            }
            """);
}