public async Task DeleteCategoryAsyncTest()
{
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options;
var dbContext = new ApplicationDbContext(options);
dbContext.Categories.Add(
new Category
{
Id = 1,
Name = "Test1",
});
dbContext.Categories.Add(
new Category
{
Id = 2,
Name = "Test2",
});
await dbContext.SaveChangesAsync();
var repository = new EfDeletableEntityRepository <Category>(dbContext);
var service = new CategoriesService(repository);
await service.DeleteCategoryAsync(1);
Assert.Single(service.AllCategoryNames());
}