/// <summary>
/// Inlines url() references as base64 encoded strings if the image size is below <paramref name="maxFileSize"/>.
/// </summary>
public static IAsset InlineImages(this IAsset bundle, int maxFileSize = 5120)
{
var minifier = new CssImageInliner(maxFileSize);
bundle.Processors.Add(minifier);
return(bundle);
}
public async Task CssImageInliner_Success(string url, string newUrl)
{
var processor = new CssImageInliner(5120);
var context = new Mock <IAssetContext>().SetupAllProperties();
var pipeline = new Mock <IAssetPipeline>().SetupAllProperties();
var asset = new Mock <IAsset>().SetupAllProperties();
var env = new Mock <IWebHostEnvironment>();
var fileProvider = new Mock <IFileProvider>();
string temp = Path.GetTempPath();
string path = Path.Combine(temp, "css", "img");
Directory.CreateDirectory(path);
string imagePath = Path.Combine(path, "test.png");
File.WriteAllText(imagePath, "empty");
File.SetLastWriteTime(imagePath, new DateTime(2017, 1, 1));
var inputFile = new PhysicalFileInfo(new FileInfo(Path.Combine(temp, "css", "site.css")));
var outputFile = new PhysicalFileInfo(new FileInfo(Path.Combine(temp, "dist", "all.css")));
context.SetupGet(s => s.Asset.Route)
.Returns("/my/route.css");
context.Setup(s => s.HttpContext.RequestServices.GetService(typeof(IAssetPipeline)))
.Returns(pipeline.Object);
context.Setup(s => s.HttpContext.RequestServices.GetService(typeof(IWebHostEnvironment)))
.Returns(env.Object);
context.SetupGet(s => s.Asset)
.Returns(asset.Object);
env.SetupGet(e => e.WebRootFileProvider)
.Returns(fileProvider.Object);
env.SetupGet(e => e.WebRootPath)
.Returns(temp);
fileProvider.SetupSequence(f => f.GetFileInfo(It.IsAny <string>()))
.Returns(inputFile)
.Returns(outputFile);
context.Object.Content = new Dictionary <string, byte[]> {
{ "css/site.css", url.AsByteArray() }
};
await processor.ExecuteAsync(context.Object);
string result = context.Object.Content.First().Value.AsString();
Assert.Equal(newUrl, result);
}