public async Task InvokeMiddleware_RequestContainsImages_DoesNotStoreImageIfCacheFull()
{
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
var pathToFile = Path.Combine(AppContext.BaseDirectory, "images/testname.bmp");
var pathToSecondFile = Path.Combine(AppContext.BaseDirectory, "images/testname2.bmp");
CreateTestDirectory();
await File.WriteAllTextAsync(Path.Combine(_pathToImageFolder, "firstimage.bmp"), "Text1");
await File.WriteAllTextAsync(Path.Combine(_pathToImageFolder, "secondimage.bmp"), "Text2");
context.Request.Path = "/images/testname";
var middleware = new ImageCachingMiddleware(next: (innerHttpContext) => Task.CompletedTask, new ImageCachingOptions("images", 3, new TimeSpan(1, 0, 0), 7));
await middleware.Invoke(context);
Assert.True(File.Exists(pathToFile));
Assert.NotEqual(0, context.Response.ContentLength);
context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
await middleware.Invoke(context);
Assert.False(File.Exists(pathToSecondFile));
Assert.Null(context.Response.ContentLength);
}
public async Task InvokeMiddleware_RequestContainsImages_DirectoryToStoreExists()
{
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
context.Request.Path = "/images/test";
var middleware = new ImageCachingMiddleware(next: (innerHttpContext) => Task.CompletedTask);
await middleware.Invoke(context);
Assert.True(Directory.Exists(_pathToImageFolder));
}
public async Task InvokeMiddleware_RequestContainsImages_ReturnsContentTypeImgBmp()
{
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
context.Request.Path = "/images/3";
var middleware = new ImageCachingMiddleware(next: (innerHttpContext) => Task.CompletedTask);
await middleware.Invoke(context);
Assert.Equal("image/bmp", context.Response.ContentType);
}
public async Task InvokeMiddleware_RequestContainsImages_FileTestnameExistsInCache()
{
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
var pathToFile = Path.Combine(_pathToImageFolder, "testname.bmp");
context.Request.Path = "/images/testname";
var middleware = new ImageCachingMiddleware(next: (innerHttpContext) => Task.CompletedTask);
await middleware.Invoke(context);
Assert.True(File.Exists(pathToFile));
}
public async Task InvokeMiddleware_RequestContainsImages_ReturnsFromLocalCacheFile()
{
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
var pathToFile = Path.Combine(AppContext.BaseDirectory, "images/testname.bmp");
CreateTestDirectory();
await File.WriteAllTextAsync(pathToFile, "Text");
context.Request.Path = "/images/testname";
var middleware = new ImageCachingMiddleware(next: (innerHttpContext) => Task.CompletedTask);
await middleware.Invoke(context);
Assert.True(File.Exists(pathToFile));
Assert.NotEqual(0, context.Response.Body.Length);
}
public async Task InvokeMiddleware_RequestContainsImages_FileIsWrittenAftercleanUp()
{
var context = new DefaultHttpContext();
context.Response.Body = new MemoryStream();
var pathToFileStored = Path.Combine(AppContext.BaseDirectory, "images/testname.bmp");
var pathToFileToStore = Path.Combine(AppContext.BaseDirectory, "images/testnamesecond.bmp");
CreateTestDirectory();
await File.WriteAllTextAsync(pathToFileStored, "Text");
context.Request.Path = "/images/testnamesecond";
var middleware = new ImageCachingMiddleware(next: (innerHttpContext) => Task.CompletedTask,
new ImageCachingOptions("images", 3, new TimeSpan(1, 0, 0), 7));
Directory.SetCreationTime(_pathToImageFolder, DateTime.Now.AddDays(-8));
await middleware.Invoke(context);
Assert.True(File.Exists(pathToFileToStore));
Assert.False(File.Exists(pathToFileStored));
}