// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Microsoft.Build.BackEnd;
using Microsoft.Build.Execution;
using Microsoft.Build.UnitTests.BackEnd;
using Xunit;
using static Microsoft.Build.Engine.UnitTests.TestComparers.ProjectInstanceModelTestComparers;
using static Microsoft.Build.Engine.UnitTests.TestData.ProjectInstanceTestObjects;
 
#nullable disable
 
namespace Microsoft.Build.Engine.UnitTests.Instance
{
    public class ProjectTargetInstance_Internal_Tests
    {
        public static IEnumerable<object[]> TargetChildrenTestData
        {
            get
            {
                yield return new object[]
                {
                    null,
                    null
                };
 
                yield return new object[]
                {
                    new ReadOnlyCollection<ProjectTargetInstanceChild>(System.Array.Empty<ProjectTargetInstanceChild>()),
                    new ReadOnlyCollection<ProjectOnErrorInstance>(System.Array.Empty<ProjectOnErrorInstance>())
                };
 
                yield return new object[]
                {
                    new ReadOnlyCollection<ProjectTargetInstanceChild>(
                        new ProjectTargetInstanceChild[]
                        {
                            CreateTargetPropertyGroup(),
                            CreateTargetItemGroup(),
                            CreateTargetOnError(),
                            CreateTargetTask()
                        }),
                    new ReadOnlyCollection<ProjectOnErrorInstance>(new[] {CreateTargetOnError() })
                };
 
                yield return new object[]
                {
                    new ReadOnlyCollection<ProjectTargetInstanceChild>(
                        new ProjectTargetInstanceChild[]
                        {
                            CreateTargetPropertyGroup(),
                            CreateTargetItemGroup(),
                            CreateTargetPropertyGroup(),
                            CreateTargetItemGroup(),
                            CreateTargetOnError(),
                            CreateTargetTask(),
                            CreateTargetOnError(),
                            CreateTargetTask()
                        }),
                    new ReadOnlyCollection<ProjectOnErrorInstance>(new[]
                    {
                        CreateTargetOnError(),
                        CreateTargetOnError()
                    })
                };
            }
        }
 
        [Theory]
        [MemberData(nameof(TargetChildrenTestData))]
        public void ProjectTargetInstanceCanSerializeViaTranslator(
            ReadOnlyCollection<ProjectTargetInstanceChild> children,
            ReadOnlyCollection<ProjectOnErrorInstance> errorChildren)
        {
            var original = CreateTarget(null, children, errorChildren);
 
            ((ITranslatable)original).Translate(TranslationHelpers.GetWriteTranslator());
            var copy = ProjectTargetInstance.FactoryForDeserialization(TranslationHelpers.GetReadTranslator());
 
            Assert.Equal(original, copy, new TargetComparer());
        }
    }
}