#region License
/* 
 * Copyright (C) 1999-2022 John Källén.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#endregion

using Moq;
using NUnit.Framework;
using Reko.Core;
using Reko.Core.Memory;
using Reko.Core.Services;
using Reko.Gui.Commands;
using Reko.Gui.Services;
using System.Collections.Generic;
using System.ComponentModel.Design;
using System.Threading.Tasks;

namespace Reko.UnitTests.Gui.Commands
{
    [TestFixture]
    public class Cmd_WhatPointsHereTests
    {
        private ByteMemoryArea mem;
        private SegmentMap segmentMap;
        private ServiceContainer sc;
        private Program program;
        private Mock<IProcessorArchitecture> arch;
        private Mock<IPlatform> platform;
        private Mock<ISearchResultService> searchSvc;

        [SetUp]
        public void Setup()
        {
            sc = new ServiceContainer();
            mem = new ByteMemoryArea(Address.Ptr32(0x00400000), new byte[2000]);
            segmentMap = new SegmentMap(mem.BaseAddress);
            arch = new Mock<IProcessorArchitecture>();
            arch.Setup(a => a.Name).Returns("FakeArch");
            platform = new Mock<IPlatform>();
            searchSvc = new Mock<ISearchResultService>();

            sc.AddService<ISearchResultService>(searchSvc.Object);

            program = new Program
            {
                Architecture = arch.Object,
                Platform = platform.Object,
                SegmentMap = segmentMap,
            };
        }

        private void Given_Segment(string name, Address address, uint size)
        {
            segmentMap.AddSegment(new ImageSegment(name, address, mem, AccessMode.ReadWriteExecute)
            {
                Size = size, 
            });
        }

        private void Given_Pointers(Address[] addresses)
        {
            platform.Setup(s => s.CreatePointerScanner(
                It.IsAny<SegmentMap>(),
                It.IsAny<EndianImageReader>(),
                It.IsAny<IEnumerable<Address>>(),
                It.IsAny<PointerScannerFlags>()))
                .Returns(addresses);
        }


        [Test(Description = "Test when a segment doesn't cover the program image")]
        public async Task Cmdwph_SmallSegment()
        {
            Given_Segment(".text", Address.Ptr32(0x00401000), 0x0800);
            Given_Pointers(new[] { Address.Ptr32(0x00401800), Address.Ptr32(0x00401804) });

            var cmd = new Cmd_ViewWhatPointsHere(sc, program, new[] { Address.Ptr32(0x00401400) });
           await cmd.DoItAsync();
        }
    }
}
