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using FluentAssertions;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using SixLabors.ImageSharp.Formats.Png;
using System;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Timeline.Entities;
using Timeline.Services;
using Timeline.Tests.Helpers;
using Timeline.Tests.Mock.Data;
using Xunit;
using Xunit.Abstractions;
namespace Timeline.Tests
{
public class MockDefaultUserAvatarProvider : IDefaultUserAvatarProvider
{
public static Avatar Avatar { get; } = new Avatar { Type = "image/test", Data = Encoding.ASCII.GetBytes("test") };
public Task<Avatar> GetDefaultAvatar()
{
return Task.FromResult(Avatar);
}
}
public class MockUserAvatarValidator : IUserAvatarValidator
{
public Task Validate(Avatar avatar)
{
return Task.CompletedTask;
}
}
public class UserAvatarValidatorTest : IClassFixture<UserAvatarValidator>
{
private readonly UserAvatarValidator _validator;
public UserAvatarValidatorTest(UserAvatarValidator validator)
{
_validator = validator;
}
[Fact]
public void CantDecode()
{
Avatar avatar = new Avatar
{
Data = Encoding.ASCII.GetBytes("This is not a image."),
Type = "image/png"
};
_validator.Awaiting(v => v.Validate(avatar))
.Should().Throw<AvatarDataException>()
.Where(e => e.Avatar == avatar && e.Error == AvatarDataException.ErrorReason.CantDecode);
}
[Fact]
public void UnmatchedFormat()
{
Avatar avatar = new Avatar
{
Data = ImageHelper.CreatePngWithSize(100, 100),
Type = "image/jpeg"
};
_validator.Awaiting(v => v.Validate(avatar))
.Should().Throw<AvatarDataException>()
.Where(e => e.Avatar == avatar && e.Error == AvatarDataException.ErrorReason.UnmatchedFormat);
}
[Fact]
public void BadSize()
{
Avatar avatar = new Avatar
{
Data = ImageHelper.CreatePngWithSize(100, 200),
Type = PngFormat.Instance.DefaultMimeType
};
_validator.Awaiting(v => v.Validate(avatar))
.Should().Throw<AvatarDataException>()
.Where(e => e.Avatar == avatar && e.Error == AvatarDataException.ErrorReason.BadSize);
}
[Fact]
public void Success()
{
Avatar avatar = new Avatar
{
Data = ImageHelper.CreatePngWithSize(100, 100),
Type = PngFormat.Instance.DefaultMimeType
};
_validator.Awaiting(v => v.Validate(avatar))
.Should().NotThrow();
}
}
public class UserAvatarServiceTest : IDisposable, IClassFixture<MockDefaultUserAvatarProvider>, IClassFixture<MockUserAvatarValidator>
{
private static Avatar MockAvatar { get; } = new Avatar
{
Type = "image/testaaa",
Data = Encoding.ASCII.GetBytes("amock")
};
private static Avatar MockAvatar2 { get; } = new Avatar
{
Type = "image/testbbb",
Data = Encoding.ASCII.GetBytes("bmock")
};
private readonly MockDefaultUserAvatarProvider _mockDefaultUserAvatarProvider;
private readonly LoggerFactory _loggerFactory;
private readonly TestDatabase _database;
private readonly UserAvatarService _service;
public UserAvatarServiceTest(ITestOutputHelper outputHelper, MockDefaultUserAvatarProvider mockDefaultUserAvatarProvider, MockUserAvatarValidator mockUserAvatarValidator)
{
_mockDefaultUserAvatarProvider = mockDefaultUserAvatarProvider;
_loggerFactory = MyTestLoggerFactory.Create(outputHelper);
_database = new TestDatabase();
_service = new UserAvatarService(_loggerFactory.CreateLogger<UserAvatarService>(), _database.DatabaseContext, _mockDefaultUserAvatarProvider, mockUserAvatarValidator);
}
public void Dispose()
{
_loggerFactory.Dispose();
_database.Dispose();
}
[Fact]
public void GetAvatar_ShouldThrow_ArgumentException()
{
// no need to await because arguments are checked syncronizedly.
_service.Invoking(s => s.GetAvatar(null)).Should().Throw<ArgumentException>()
.Where(e => e.ParamName == "username" && e.Message.Contains("null", StringComparison.OrdinalIgnoreCase));
_service.Invoking(s => s.GetAvatar("")).Should().Throw<ArgumentException>()
.Where(e => e.ParamName == "username" && e.Message.Contains("empty", StringComparison.OrdinalIgnoreCase));
}
[Fact]
public void GetAvatar_ShouldThrow_UserNotExistException()
{
const string username = "usernotexist";
_service.Awaiting(s => s.GetAvatar(username)).Should().Throw<UserNotExistException>()
.Where(e => e.Username == username);
}
[Fact]
public async Task GetAvatar_ShouldReturn_Default()
{
const string username = MockUsers.UserUsername;
(await _service.GetAvatar(username)).Should().BeEquivalentTo(await _mockDefaultUserAvatarProvider.GetDefaultAvatar());
}
[Fact]
public async Task GetAvatar_ShouldReturn_Data()
{
const string username = MockUsers.UserUsername;
{
// create mock data
var context = _database.DatabaseContext;
var user = await context.Users.Where(u => u.Name == username).Include(u => u.Avatar).SingleAsync();
user.Avatar = new UserAvatar
{
Type = MockAvatar.Type,
Data = MockAvatar.Data
};
await context.SaveChangesAsync();
}
(await _service.GetAvatar(username)).Should().BeEquivalentTo(MockAvatar);
}
[Fact]
public void SetAvatar_ShouldThrow_ArgumentException()
{
// no need to await because arguments are checked syncronizedly.
_service.Invoking(s => s.SetAvatar(null, MockAvatar)).Should().Throw<ArgumentException>()
.Where(e => e.ParamName == "username" && e.Message.Contains("null", StringComparison.OrdinalIgnoreCase));
_service.Invoking(s => s.SetAvatar("", MockAvatar)).Should().Throw<ArgumentException>()
.Where(e => e.ParamName == "username" && e.Message.Contains("empty", StringComparison.OrdinalIgnoreCase));
_service.Invoking(s => s.SetAvatar("aaa", new Avatar { Type = null, Data = new[] { (byte)0x00 } })).Should().Throw<ArgumentException>()
.Where(e => e.ParamName == "avatar" && e.Message.Contains("null", StringComparison.OrdinalIgnoreCase));
_service.Invoking(s => s.SetAvatar("aaa", new Avatar { Type = "", Data = new[] { (byte)0x00 } })).Should().Throw<ArgumentException>()
.Where(e => e.ParamName == "avatar" && e.Message.Contains("empty", StringComparison.OrdinalIgnoreCase));
_service.Invoking(s => s.SetAvatar("aaa", new Avatar { Type = "aaa", Data = null })).Should().Throw<ArgumentException>()
.Where(e => e.ParamName == "avatar" && e.Message.Contains("null", StringComparison.OrdinalIgnoreCase));
}
[Fact]
public void SetAvatar_ShouldThrow_UserNotExistException()
{
const string username = "usernotexist";
_service.Awaiting(s => s.SetAvatar(username, MockAvatar)).Should().Throw<UserNotExistException>()
.Where(e => e.Username == username);
}
[Fact]
public async Task SetAvatar_Should_Work()
{
const string username = MockUsers.UserUsername;
var user = await _database.DatabaseContext.Users.Where(u => u.Name == username).Include(u => u.Avatar).SingleAsync();
// create
await _service.SetAvatar(username, MockAvatar);
user.Avatar.Should().NotBeNull();
user.Avatar.Type.Should().Be(MockAvatar.Type);
user.Avatar.Data.Should().Equal(MockAvatar.Data);
// modify
await _service.SetAvatar(username, MockAvatar2);
user.Avatar.Should().NotBeNull();
user.Avatar.Type.Should().Be(MockAvatar2.Type);
user.Avatar.Data.Should().Equal(MockAvatar2.Data);
// delete
await _service.SetAvatar(username, null);
user.Avatar.Should().BeNull();
}
}
}
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