ImageSharp/tests/ImageSharp.Tests/Formats/Bmp/ImageExtensionsTest.cs

// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

using SixLabors.ImageSharp.Formats;
using SixLabors.ImageSharp.Formats.Bmp;
using SixLabors.ImageSharp.PixelFormats;

namespace SixLabors.ImageSharp.Tests.Formats.Bmp;

public class ImageExtensionsTest
{
    [Fact]
    public void SaveAsBmp_Path()
    {
        string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensionsTest));
        string file = Path.Combine(dir, "SaveAsBmp_Path.bmp");

        using (var image = new Image<Rgba32>(10, 10))
        {
            image.SaveAsBmp(file);
        }

        using (Image.Load(file, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }

    [Fact]
    public async Task SaveAsBmpAsync_Path()
    {
        string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensionsTest));
        string file = Path.Combine(dir, "SaveAsBmpAsync_Path.bmp");

        using (var image = new Image<Rgba32>(10, 10))
        {
            await image.SaveAsBmpAsync(file);
        }

        using (Image.Load(file, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }

    [Fact]
    public void SaveAsBmp_Path_Encoder()
    {
        string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensions));
        string file = Path.Combine(dir, "SaveAsBmp_Path_Encoder.bmp");

        using (var image = new Image<Rgba32>(10, 10))
        {
            image.SaveAsBmp(file, new BmpEncoder());
        }

        using (Image.Load(file, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }

    [Fact]
    public async Task SaveAsBmpAsync_Path_Encoder()
    {
        string dir = TestEnvironment.CreateOutputDirectory(nameof(ImageExtensions));
        string file = Path.Combine(dir, "SaveAsBmpAsync_Path_Encoder.bmp");

        using (var image = new Image<Rgba32>(10, 10))
        {
            await image.SaveAsBmpAsync(file, new BmpEncoder());
        }

        using (Image.Load(file, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }

    [Fact]
    public void SaveAsBmp_Stream()
    {
        using var memoryStream = new MemoryStream();

        using (var image = new Image<Rgba32>(10, 10))
        {
            image.SaveAsBmp(memoryStream);
        }

        memoryStream.Position = 0;

        using (Image.Load(memoryStream, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }

    [Fact]
    public async Task SaveAsBmpAsync_StreamAsync()
    {
        using var memoryStream = new MemoryStream();

        using (var image = new Image<Rgba32>(10, 10))
        {
            await image.SaveAsBmpAsync(memoryStream);
        }

        memoryStream.Position = 0;

        using (Image.Load(memoryStream, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }

    [Fact]
    public void SaveAsBmp_Stream_Encoder()
    {
        using var memoryStream = new MemoryStream();

        using (var image = new Image<Rgba32>(10, 10))
        {
            image.SaveAsBmp(memoryStream, new BmpEncoder());
        }

        memoryStream.Position = 0;

        using (Image.Load(memoryStream, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }

    [Fact]
    public async Task SaveAsBmpAsync_Stream_Encoder()
    {
        using var memoryStream = new MemoryStream();

        using (var image = new Image<Rgba32>(10, 10))
        {
            await image.SaveAsBmpAsync(memoryStream, new BmpEncoder());
        }

        memoryStream.Position = 0;

        using (Image.Load(memoryStream, out IImageFormat mime))
        {
            Assert.Equal("image/bmp", mime.DefaultMimeType);
        }
    }
}