ImageTests.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Text;
using Microsoft.DotNet.XUnitExtensions;
using Encoder = System.Drawing.Imaging.Encoder;
 
namespace System.Drawing.Tests;
 
public class ImageTests
{
    private const int PropertyTagLuminanceTable = 0x5090;
    private const int PropertyTagChrominanceTable = 0x5091;
    private const int PropertyTagExifUserComment = 0x9286;
    private const int PropertyTagTypeASCII = 2;
    private const int PropertyTagTypeShort = 3;
 
    [Fact]
    public void PropertyIdList_GetBitmapJpg_Success()
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        Assert.Equal([PropertyTagExifUserComment, PropertyTagChrominanceTable, PropertyTagLuminanceTable], bitmap.PropertyIdList);
        Assert.NotSame(bitmap.PropertyIdList, bitmap.PropertyIdList);
    }
 
    [Fact]
    public void PropertyIdList_GetEmptyMemoryBitmap_ReturnsExpected()
    {
        using Bitmap bitmap = new(1, 1);
        Assert.Empty(bitmap.PropertyIdList);
        Assert.Same(bitmap.PropertyIdList, bitmap.PropertyIdList);
    }
 
    [Fact]
    public void PropertyItems_GetBitmapJpg_Success()
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        PropertyItem[] items = bitmap.PropertyItems;
        Assert.Equal(3, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(29, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("LEAD Technologies Inc. V1.01\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(PropertyTagChrominanceTable, items[1].Id);
        Assert.Equal(128, items[1].Len);
        Assert.Equal(PropertyTagTypeShort, items[1].Type);
        Assert.Equal(new byte[]
        {
            0x16, 0x00, 0x17, 0x00, 0x1F, 0x00, 0x3E, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x17,
            0x00, 0x1B, 0x00, 0x22, 0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x1F,
            0x00, 0x22, 0x00, 0x49, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x3E,
            0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00
        }, items[1].Value);
        Assert.Equal(PropertyTagLuminanceTable, items[2].Id);
        Assert.Equal(128, items[2].Len);
        Assert.Equal(PropertyTagTypeShort, items[2].Type);
        Assert.Equal(new byte[]
        {
            0x15, 0x00, 0x0E, 0x00, 0x0D, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x43, 0x00, 0x50, 0x00, 0x0F,
            0x00, 0x0F, 0x00, 0x12, 0x00, 0x19, 0x00, 0x22, 0x00, 0x4C, 0x00, 0x4F, 0x00, 0x48, 0x00, 0x12,
            0x00, 0x11, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x4B, 0x00, 0x5B, 0x00, 0x49, 0x00, 0x12,
            0x00, 0x16, 0x00, 0x1D, 0x00, 0x26, 0x00, 0x43, 0x00, 0x72, 0x00, 0x69, 0x00, 0x51, 0x00, 0x17,
            0x00, 0x1D, 0x00, 0x30, 0x00, 0x49, 0x00, 0x59, 0x00, 0x8F, 0x00, 0x87, 0x00, 0x65, 0x00, 0x1F,
            0x00, 0x2E, 0x00, 0x48, 0x00, 0x54, 0x00, 0x6A, 0x00, 0x89, 0x00, 0x95, 0x00, 0x79, 0x00, 0x40,
            0x00, 0x54, 0x00, 0x66, 0x00, 0x72, 0x00, 0x87, 0x00, 0x9F, 0x00, 0x9E, 0x00, 0x85, 0x00, 0x5F,
            0x00, 0x79, 0x00, 0x7D, 0x00, 0x81, 0x00, 0x93, 0x00, 0x84, 0x00, 0x87, 0x00, 0x82, 0x00,
        }, items[2].Value);
 
        Assert.NotSame(items, bitmap.PropertyItems);
    }
 
    [Fact]
    public void PropertyItems_GetEmptyBitmapBmp_Success()
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("almogaver1bit.bmp"));
        Assert.Empty(bitmap.PropertyItems);
        Assert.Same(bitmap.PropertyItems, bitmap.PropertyItems);
    }
 
    [Fact]
    public void PropertyItems_GetEmptyMemoryBitmap_ReturnsExpected()
    {
        using Bitmap bitmap = new(1, 1);
        Assert.Empty(bitmap.PropertyItems);
        Assert.Same(bitmap.PropertyItems, bitmap.PropertyItems);
    }
 
    [Fact]
    public void GetPropertyItem_InvokeExistsBitmapBmp_Success()
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        PropertyItem item = bitmap.GetPropertyItem(PropertyTagExifUserComment);
        Assert.Equal(PropertyTagExifUserComment, item.Id);
        Assert.Equal(29, item.Len);
        Assert.Equal(PropertyTagTypeASCII, item.Type);
        Assert.Equal("LEAD Technologies Inc. V1.01\0", Encoding.ASCII.GetString(item.Value));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void GetPropertyItem_NoSuchPropertyItemEmptyMemoryBitmap_ThrowsArgumentException(int propid)
    {
        using Bitmap bitmap = new(1, 1);
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(propid));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void GetPropertyItem_NoSuchPropertyItemEmptyImageBitmapBmp_ThrowsArgumentException(int propid)
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("almogaver1bit.bmp"));
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(propid));
    }
 
    [Fact]
    public void RemovePropertyItem_InvokeMemoryBitmap_Success()
    {
        using Bitmap source = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        PropertyItem item1 = source.GetPropertyItem(PropertyTagExifUserComment);
        PropertyItem item2 = source.GetPropertyItem(PropertyTagChrominanceTable);
        PropertyItem item3 = source.GetPropertyItem(PropertyTagLuminanceTable);
        using Bitmap bitmap = new(1, 1);
        bitmap.SetPropertyItem(item1);
        bitmap.SetPropertyItem(item2);
        bitmap.SetPropertyItem(item3);
 
        bitmap.RemovePropertyItem(PropertyTagExifUserComment);
        Assert.Equal([PropertyTagChrominanceTable, PropertyTagLuminanceTable], bitmap.PropertyIdList);
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(PropertyTagExifUserComment));
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.RemovePropertyItem(PropertyTagExifUserComment));
 
        bitmap.RemovePropertyItem(PropertyTagLuminanceTable);
        Assert.Equal([PropertyTagChrominanceTable], bitmap.PropertyIdList);
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(PropertyTagLuminanceTable));
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.RemovePropertyItem(PropertyTagLuminanceTable));
 
        bitmap.RemovePropertyItem(PropertyTagChrominanceTable);
        Assert.Empty(bitmap.PropertyIdList);
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(PropertyTagChrominanceTable));
        Assert.Throws<ExternalException>(() => bitmap.RemovePropertyItem(PropertyTagChrominanceTable));
    }
 
    [Fact]
    public void RemovePropertyItem_InvokeBitmapJpg_Success()
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        bitmap.RemovePropertyItem(PropertyTagExifUserComment);
        Assert.Equal([PropertyTagChrominanceTable, PropertyTagLuminanceTable], bitmap.PropertyIdList);
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(PropertyTagExifUserComment));
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.RemovePropertyItem(PropertyTagExifUserComment));
 
        bitmap.RemovePropertyItem(PropertyTagLuminanceTable);
        Assert.Equal([PropertyTagChrominanceTable], bitmap.PropertyIdList);
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(PropertyTagLuminanceTable));
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.RemovePropertyItem(PropertyTagLuminanceTable));
 
        bitmap.RemovePropertyItem(PropertyTagChrominanceTable);
        Assert.Empty(bitmap.PropertyIdList);
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.GetPropertyItem(PropertyTagChrominanceTable));
        Assert.Throws<ExternalException>(() => bitmap.RemovePropertyItem(PropertyTagChrominanceTable));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void RemovePropertyItem_NoSuchPropertyItemEmptyMemoryBitmap_ThrowsExternalException(int propid)
    {
        using Bitmap bitmap = new(1, 1);
        Assert.Throws<ExternalException>(() => bitmap.RemovePropertyItem(propid));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void RemovePropertyItem_NoSuchPropertyItemEmptyImageBitmapBmp_ThrowsExternalException(int propid)
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("almogaver1bit.bmp"));
        Assert.Throws<ExternalException>(() => bitmap.RemovePropertyItem(propid));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void RemovePropertyItem_NoSuchPropertyNotEmptyMemoryBitmap_ThrowsArgumentException(int propid)
    {
        using Bitmap source = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        PropertyItem item1 = source.GetPropertyItem(PropertyTagExifUserComment);
        PropertyItem item2 = source.GetPropertyItem(PropertyTagChrominanceTable);
        PropertyItem item3 = source.GetPropertyItem(PropertyTagLuminanceTable);
        using Bitmap bitmap = new(1, 1);
        bitmap.SetPropertyItem(item1);
        bitmap.SetPropertyItem(item2);
        bitmap.SetPropertyItem(item3);
 
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.RemovePropertyItem(propid));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void RemovePropertyItem_NoSuchPropertyNotEmptyBitmapJpg_ThrowsArgumentException(int propid)
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        AssertExtensions.Throws<ArgumentException>(null, () => bitmap.RemovePropertyItem(propid));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void SetPropertyItem_InvokeMemoryBitmap_Success(int propid)
    {
        using Bitmap source = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        using Bitmap bitmap = new(1, 1);
 
        // Change data.
        PropertyItem item = source.GetPropertyItem(PropertyTagExifUserComment);
        item.Value = "Hello World\0"u8.ToArray();
        item.Len = item.Value.Length;
 
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment], bitmap.PropertyIdList);
        PropertyItem[] items = bitmap.PropertyItems;
        Assert.Single(items);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
 
        // New data.
        item.Id = propid;
        item.Value = "New Value\0"u8.ToArray();
        item.Len = item.Value.Length;
 
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment, propid], bitmap.PropertyIdList);
        items = bitmap.PropertyItems;
        Assert.Equal(2, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(propid, items[1].Id);
        Assert.Equal(10, items[1].Len);
        Assert.Equal(PropertyTagTypeASCII, items[1].Type);
        Assert.Equal("New Value\0", Encoding.ASCII.GetString(items[1].Value));
 
        // Set same.
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment, propid], bitmap.PropertyIdList);
        items = bitmap.PropertyItems;
        Assert.Equal(2, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(propid, items[1].Id);
        Assert.Equal(10, items[1].Len);
        Assert.Equal(PropertyTagTypeASCII, items[1].Type);
        Assert.Equal("New Value\0", Encoding.ASCII.GetString(items[1].Value));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void SetPropertyItem_InvokeBitmapJpg_Success(int propid)
    {
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
 
        // Change data.
        PropertyItem item = bitmap.GetPropertyItem(PropertyTagExifUserComment);
        item.Value = "Hello World\0"u8.ToArray();
        item.Len = item.Value.Length;
 
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment, PropertyTagChrominanceTable, PropertyTagLuminanceTable], bitmap.PropertyIdList);
        PropertyItem[] items = bitmap.PropertyItems;
        Assert.Equal(3, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(PropertyTagChrominanceTable, items[1].Id);
        Assert.Equal(128, items[1].Len);
        Assert.Equal(PropertyTagTypeShort, items[1].Type);
        Assert.Equal(new byte[]
        {
            0x16, 0x00, 0x17, 0x00, 0x1F, 0x00, 0x3E, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x17,
            0x00, 0x1B, 0x00, 0x22, 0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x1F,
            0x00, 0x22, 0x00, 0x49, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x3E,
            0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00
        }, items[1].Value);
        Assert.Equal(PropertyTagLuminanceTable, items[2].Id);
        Assert.Equal(128, items[2].Len);
        Assert.Equal(PropertyTagTypeShort, items[2].Type);
        Assert.Equal(new byte[]
        {
            0x15, 0x00, 0x0E, 0x00, 0x0D, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x43, 0x00, 0x50, 0x00, 0x0F,
            0x00, 0x0F, 0x00, 0x12, 0x00, 0x19, 0x00, 0x22, 0x00, 0x4C, 0x00, 0x4F, 0x00, 0x48, 0x00, 0x12,
            0x00, 0x11, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x4B, 0x00, 0x5B, 0x00, 0x49, 0x00, 0x12,
            0x00, 0x16, 0x00, 0x1D, 0x00, 0x26, 0x00, 0x43, 0x00, 0x72, 0x00, 0x69, 0x00, 0x51, 0x00, 0x17,
            0x00, 0x1D, 0x00, 0x30, 0x00, 0x49, 0x00, 0x59, 0x00, 0x8F, 0x00, 0x87, 0x00, 0x65, 0x00, 0x1F,
            0x00, 0x2E, 0x00, 0x48, 0x00, 0x54, 0x00, 0x6A, 0x00, 0x89, 0x00, 0x95, 0x00, 0x79, 0x00, 0x40,
            0x00, 0x54, 0x00, 0x66, 0x00, 0x72, 0x00, 0x87, 0x00, 0x9F, 0x00, 0x9E, 0x00, 0x85, 0x00, 0x5F,
            0x00, 0x79, 0x00, 0x7D, 0x00, 0x81, 0x00, 0x93, 0x00, 0x84, 0x00, 0x87, 0x00, 0x82, 0x00,
        }, items[2].Value);
 
        // New data.
        item.Id = propid;
        item.Value = "New Value\0"u8.ToArray();
        item.Len = item.Value.Length;
 
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment, PropertyTagChrominanceTable, PropertyTagLuminanceTable, propid], bitmap.PropertyIdList);
        items = bitmap.PropertyItems;
        Assert.Equal(4, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(PropertyTagChrominanceTable, items[1].Id);
        Assert.Equal(128, items[1].Len);
        Assert.Equal(PropertyTagTypeShort, items[1].Type);
        Assert.Equal(new byte[]
        {
            0x16, 0x00, 0x17, 0x00, 0x1F, 0x00, 0x3E, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x17,
            0x00, 0x1B, 0x00, 0x22, 0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x1F,
            0x00, 0x22, 0x00, 0x49, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x3E,
            0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00
        }, items[1].Value);
        Assert.Equal(PropertyTagLuminanceTable, items[2].Id);
        Assert.Equal(128, items[2].Len);
        Assert.Equal(PropertyTagTypeShort, items[2].Type);
        Assert.Equal(new byte[]
        {
            0x15, 0x00, 0x0E, 0x00, 0x0D, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x43, 0x00, 0x50, 0x00, 0x0F,
            0x00, 0x0F, 0x00, 0x12, 0x00, 0x19, 0x00, 0x22, 0x00, 0x4C, 0x00, 0x4F, 0x00, 0x48, 0x00, 0x12,
            0x00, 0x11, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x4B, 0x00, 0x5B, 0x00, 0x49, 0x00, 0x12,
            0x00, 0x16, 0x00, 0x1D, 0x00, 0x26, 0x00, 0x43, 0x00, 0x72, 0x00, 0x69, 0x00, 0x51, 0x00, 0x17,
            0x00, 0x1D, 0x00, 0x30, 0x00, 0x49, 0x00, 0x59, 0x00, 0x8F, 0x00, 0x87, 0x00, 0x65, 0x00, 0x1F,
            0x00, 0x2E, 0x00, 0x48, 0x00, 0x54, 0x00, 0x6A, 0x00, 0x89, 0x00, 0x95, 0x00, 0x79, 0x00, 0x40,
            0x00, 0x54, 0x00, 0x66, 0x00, 0x72, 0x00, 0x87, 0x00, 0x9F, 0x00, 0x9E, 0x00, 0x85, 0x00, 0x5F,
            0x00, 0x79, 0x00, 0x7D, 0x00, 0x81, 0x00, 0x93, 0x00, 0x84, 0x00, 0x87, 0x00, 0x82, 0x00,
        }, items[2].Value);
        Assert.Equal(propid, items[3].Id);
        Assert.Equal(10, items[3].Len);
        Assert.Equal(PropertyTagTypeASCII, items[3].Type);
        Assert.Equal("New Value\0", Encoding.ASCII.GetString(items[3].Value));
 
        // Set same.
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment, PropertyTagChrominanceTable, PropertyTagLuminanceTable, propid], bitmap.PropertyIdList);
        items = bitmap.PropertyItems;
        Assert.Equal(4, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(PropertyTagChrominanceTable, items[1].Id);
        Assert.Equal(128, items[1].Len);
        Assert.Equal(PropertyTagTypeShort, items[1].Type);
        Assert.Equal(new byte[]
        {
            0x16, 0x00, 0x17, 0x00, 0x1F, 0x00, 0x3E, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x17,
            0x00, 0x1B, 0x00, 0x22, 0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x1F,
            0x00, 0x22, 0x00, 0x49, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x3E,
            0x00, 0x57, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82,
            0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00, 0x82, 0x00
        }, items[1].Value);
        Assert.Equal(PropertyTagLuminanceTable, items[2].Id);
        Assert.Equal(128, items[2].Len);
        Assert.Equal(PropertyTagTypeShort, items[2].Type);
        Assert.Equal(new byte[]
        {
            0x15, 0x00, 0x0E, 0x00, 0x0D, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x43, 0x00, 0x50, 0x00, 0x0F,
            0x00, 0x0F, 0x00, 0x12, 0x00, 0x19, 0x00, 0x22, 0x00, 0x4C, 0x00, 0x4F, 0x00, 0x48, 0x00, 0x12,
            0x00, 0x11, 0x00, 0x15, 0x00, 0x1F, 0x00, 0x34, 0x00, 0x4B, 0x00, 0x5B, 0x00, 0x49, 0x00, 0x12,
            0x00, 0x16, 0x00, 0x1D, 0x00, 0x26, 0x00, 0x43, 0x00, 0x72, 0x00, 0x69, 0x00, 0x51, 0x00, 0x17,
            0x00, 0x1D, 0x00, 0x30, 0x00, 0x49, 0x00, 0x59, 0x00, 0x8F, 0x00, 0x87, 0x00, 0x65, 0x00, 0x1F,
            0x00, 0x2E, 0x00, 0x48, 0x00, 0x54, 0x00, 0x6A, 0x00, 0x89, 0x00, 0x95, 0x00, 0x79, 0x00, 0x40,
            0x00, 0x54, 0x00, 0x66, 0x00, 0x72, 0x00, 0x87, 0x00, 0x9F, 0x00, 0x9E, 0x00, 0x85, 0x00, 0x5F,
            0x00, 0x79, 0x00, 0x7D, 0x00, 0x81, 0x00, 0x93, 0x00, 0x84, 0x00, 0x87, 0x00, 0x82, 0x00,
        }, items[2].Value);
        Assert.Equal(propid, items[3].Id);
        Assert.Equal(10, items[3].Len);
        Assert.Equal(PropertyTagTypeASCII, items[3].Type);
        Assert.Equal("New Value\0", Encoding.ASCII.GetString(items[3].Value));
    }
 
    [Theory]
    [InlineData(0)]
    [InlineData(1)]
    [InlineData(-1)]
    public void SetPropertyItem_InvokeBitmapBmp_Success(int propid)
    {
        using Bitmap source = new(Helpers.GetTestBitmapPath("nature24bits.jpg"));
        using Bitmap bitmap = new(Helpers.GetTestBitmapPath("almogaver1bit.bmp"));
 
        // Change data.
        PropertyItem item = source.GetPropertyItem(PropertyTagExifUserComment);
        item.Value = "Hello World\0"u8.ToArray();
        item.Len = item.Value.Length;
 
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment], bitmap.PropertyIdList);
        PropertyItem[] items = bitmap.PropertyItems;
        Assert.Single(items);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
 
        // New data.
        item.Id = propid;
        item.Value = "New Value\0"u8.ToArray();
        item.Len = item.Value.Length;
 
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment, propid], bitmap.PropertyIdList);
        items = bitmap.PropertyItems;
        Assert.Equal(2, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(propid, items[1].Id);
        Assert.Equal(10, items[1].Len);
        Assert.Equal(PropertyTagTypeASCII, items[1].Type);
        Assert.Equal("New Value\0", Encoding.ASCII.GetString(items[1].Value));
 
        // Set same.
        bitmap.SetPropertyItem(item);
 
        Assert.Equal([PropertyTagExifUserComment, propid], bitmap.PropertyIdList);
        items = bitmap.PropertyItems;
        Assert.Equal(2, items.Length);
        Assert.Equal(PropertyTagExifUserComment, items[0].Id);
        Assert.Equal(12, items[0].Len);
        Assert.Equal(PropertyTagTypeASCII, items[0].Type);
        Assert.Equal("Hello World\0", Encoding.ASCII.GetString(items[0].Value));
        Assert.Equal(propid, items[1].Id);
        Assert.Equal(10, items[1].Len);
        Assert.Equal(PropertyTagTypeASCII, items[1].Type);
        Assert.Equal("New Value\0", Encoding.ASCII.GetString(items[1].Value));
    }
 
    public static IEnumerable<object[]> InvalidBytes_TestData()
    {
        // IconTests.Ctor_InvalidBytesInStream_TestData an array of 2 objects, but this test only uses the
        // 1st object.
        foreach (object[] data in IconTests.Ctor_InvalidBytesInStream_TestData())
        {
            yield return new object[] { data[0] };
        }
    }
 
    [Theory]
    [MemberData(nameof(InvalidBytes_TestData))]
    public void FromFile_InvalidBytes_ThrowsOutOfMemoryException(byte[] bytes)
    {
        using var file = TempFile.Create(bytes);
        Assert.Throws<OutOfMemoryException>(() => Image.FromFile(file.Path));
        Assert.Throws<OutOfMemoryException>(() => Image.FromFile(file.Path, useEmbeddedColorManagement: true));
    }
 
    [Fact]
    public void FromFile_NullFileName_ThrowsArgumentNullException()
    {
        AssertExtensions.Throws<ArgumentNullException>("path", () => Image.FromFile(null));
        AssertExtensions.Throws<ArgumentNullException>("path", () => Image.FromFile(null, useEmbeddedColorManagement: true));
    }
 
    [Fact]
    public void FromFile_EmptyFileName_ThrowsArgumentNullException()
    {
        AssertExtensions.Throws<ArgumentException>("path", null, () => Image.FromFile(string.Empty));
        AssertExtensions.Throws<ArgumentException>("path", null, () => Image.FromFile(string.Empty, useEmbeddedColorManagement: true));
    }
 
    [Fact]
    public void FromFile_LongSegment_ThrowsException()
    {
        // Throws PathTooLongException on Desktop and FileNotFoundException elsewhere.
        if (PlatformDetection.IsNetFramework)
        {
            string fileName = new('a', 261);
 
            Assert.Throws<PathTooLongException>(() => Image.FromFile(fileName));
            Assert.Throws<PathTooLongException>(() => Image.FromFile(fileName,
                useEmbeddedColorManagement: true));
        }
        else
        {
            string fileName = new('a', 261);
 
            Assert.Throws<FileNotFoundException>(() => Image.FromFile(fileName));
            Assert.Throws<FileNotFoundException>(() => Image.FromFile(fileName,
                useEmbeddedColorManagement: true));
        }
    }
 
    [Fact]
    public void FromFile_NoSuchFile_ThrowsFileNotFoundException()
    {
        Assert.Throws<FileNotFoundException>(() => Image.FromFile("NoSuchFile"));
        Assert.Throws<FileNotFoundException>(() => Image.FromFile("NoSuchFile", useEmbeddedColorManagement: true));
    }
 
    [Theory]
    [MemberData(nameof(InvalidBytes_TestData))]
    public void FromStream_InvalidBytes_ThrowsArgumentException(byte[] bytes)
    {
        using MemoryStream stream = new();
        stream.Write(bytes, 0, bytes.Length);
        stream.Position = 0;
 
        AssertExtensions.Throws<ArgumentException>(null, () => Image.FromStream(stream));
        Assert.Equal(0, stream.Position);
 
        AssertExtensions.Throws<ArgumentException>(null, () => Image.FromStream(stream, useEmbeddedColorManagement: true));
        AssertExtensions.Throws<ArgumentException>(null, () => Image.FromStream(stream, useEmbeddedColorManagement: true, validateImageData: true));
        Assert.Equal(0, stream.Position);
    }
 
    [Fact]
    public void FromStream_NullStream_ThrowsArgumentNullException()
    {
        AssertExtensions.Throws<ArgumentNullException, ArgumentException>("stream", null, () => Image.FromStream(null));
        AssertExtensions.Throws<ArgumentNullException, ArgumentException>("stream", null, () => Image.FromStream(null, useEmbeddedColorManagement: true));
        AssertExtensions.Throws<ArgumentNullException, ArgumentException>("stream", null, () => Image.FromStream(null, useEmbeddedColorManagement: true, validateImageData: true));
    }
 
    [Theory]
    [InlineData(PixelFormat.Format1bppIndexed, 1)]
    [InlineData(PixelFormat.Format4bppIndexed, 4)]
    [InlineData(PixelFormat.Format8bppIndexed, 8)]
    [InlineData(PixelFormat.Format16bppArgb1555, 16)]
    [InlineData(PixelFormat.Format16bppGrayScale, 16)]
    [InlineData(PixelFormat.Format16bppRgb555, 16)]
    [InlineData(PixelFormat.Format16bppRgb565, 16)]
    [InlineData(PixelFormat.Format24bppRgb, 24)]
    [InlineData(PixelFormat.Format32bppArgb, 32)]
    [InlineData(PixelFormat.Format32bppPArgb, 32)]
    [InlineData(PixelFormat.Format32bppRgb, 32)]
    [InlineData(PixelFormat.Format48bppRgb, 48)]
    [InlineData(PixelFormat.Format64bppArgb, 64)]
    [InlineData(PixelFormat.Format64bppPArgb, 64)]
    public void GetPixelFormatSize_ReturnsExpected(PixelFormat format, int expectedSize)
    {
        Assert.Equal(expectedSize, Image.GetPixelFormatSize(format));
    }
 
    [Theory]
    [InlineData(PixelFormat.Format16bppArgb1555, true)]
    [InlineData(PixelFormat.Format32bppArgb, true)]
    [InlineData(PixelFormat.Format32bppPArgb, true)]
    [InlineData(PixelFormat.Format64bppArgb, true)]
    [InlineData(PixelFormat.Format64bppPArgb, true)]
    [InlineData(PixelFormat.Format16bppGrayScale, false)]
    [InlineData(PixelFormat.Format16bppRgb555, false)]
    [InlineData(PixelFormat.Format16bppRgb565, false)]
    [InlineData(PixelFormat.Format1bppIndexed, false)]
    [InlineData(PixelFormat.Format24bppRgb, false)]
    [InlineData(PixelFormat.Format32bppRgb, false)]
    [InlineData(PixelFormat.Format48bppRgb, false)]
    [InlineData(PixelFormat.Format4bppIndexed, false)]
    [InlineData(PixelFormat.Format8bppIndexed, false)]
    public void IsAlphaPixelFormat_ReturnsExpected(PixelFormat format, bool expected)
    {
        Assert.Equal(expected, Image.IsAlphaPixelFormat(format));
    }
 
    public static IEnumerable<object[]> GetEncoderParameterList_ReturnsExpected_TestData()
    {
        yield return new object[]
        {
            ImageFormat.Tiff,
            new Guid[]
            {
                Encoder.Compression.Guid,
                Encoder.ColorDepth.Guid,
                Encoder.SaveFlag.Guid,
                new(unchecked((int)0xa219bbc9), unchecked(0x0a9d), unchecked(0x4005), [0xa3, 0xee, 0x3a, 0x42, 0x1b, 0x8b, 0xb0, 0x6c]) /* Encoder.SaveAsCmyk.Guid */
            }
        };
 
#if !NETFRAMEWORK
        // NetFX doesn't support pointer-type encoder parameters, and doesn't define Encoder.ImageItems. Skip this test
        // on NetFX.
        yield return new object[]
        {
            ImageFormat.Jpeg,
            new Guid[]
            {
                Encoder.Transformation.Guid,
                Encoder.Quality.Guid,
                Encoder.LuminanceTable.Guid,
                Encoder.ChrominanceTable.Guid,
                Encoder.ImageItems.Guid
            }
        };
#endif
    }
 
    [Theory]
    [MemberData(nameof(GetEncoderParameterList_ReturnsExpected_TestData))]
    public void GetEncoderParameterList_ReturnsExpected(ImageFormat format, Guid[] expectedParameters)
    {
        if (PlatformDetection.IsNetFramework)
        {
            throw new SkipTestException("This is a known bug for .NET Framework");
        }
 
        ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();
        ImageCodecInfo codec = codecs.Single(c => c.FormatID == format.Guid);
 
        using Bitmap bitmap = new(1, 1);
        EncoderParameters paramList = bitmap.GetEncoderParameterList(codec.Clsid);
 
        Assert.Equal(
            expectedParameters,
            paramList.Param.Select(p => p.Encoder.Guid));
    }
 
    [Fact]
    public void Save_InvalidDirectory_ThrowsDirectoryNotFoundException()
    {
        using Bitmap bitmap = new(1, 1);
        string badTarget = Path.Join("NoSuchDirectory", "NoSuchFile");
        AssertExtensions.Throws<DirectoryNotFoundException>(() => bitmap.Save(badTarget), $"The directory NoSuchDirectory of the filename {badTarget} does not exist.");
    }
}
File: System\Drawing\ImageTests.cs	Web Access
Project: src\src\System.Drawing.Common\tests\System.Drawing.Common.Tests.csproj (System.Drawing.Common.Tests)