public async Task Test_CreateUser_IsUsernameExisted_UpdateUser_FindById()
{
var(target, dto) = CreateTargetAndDto();
var result = await target.CreateUserAsync(dto);
Assert.IsNotNull(result);
Assert.IsTrue(await target.IsUsernameExistedAsync(dto.Username, CancellationToken.None));
var dtoFound = await target.FindByIdAsync(dto.Id);
await GeneralAssertAsync(dtoFound, target);
result = await target.UpdateUserAsync(dto.Id, new UserItemDto { Avatar = "efg.png" });
Assert.IsNotNull(result);
dtoFound = await target.FindByIdAsync(dto.Id);
Assert.AreEqual("efg.png", dtoFound.Avatar);
Assert.IsNotNull(dtoFound.Modified);
}