chrly/mojangtextures/mojang_textures_test.go

458 lines
20 KiB
Go

package mojangtextures
import (
"errors"
"sync"
"testing"
"time"
testify "github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/suite"
"github.com/elyby/chrly/api/mojang"
)
func TestBroadcaster(t *testing.T) {
t.Run("GetOrAppend", func(t *testing.T) {
t.Run("first call when username didn't exist before should return true", func(t *testing.T) {
assert := testify.New(t)
broadcaster := createBroadcaster()
channel := make(chan *broadcastResult)
isFirstListener := broadcaster.AddListener("mock", channel)
assert.True(isFirstListener)
listeners, ok := broadcaster.listeners["mock"]
assert.True(ok)
assert.Len(listeners, 1)
assert.Equal(channel, listeners[0])
})
t.Run("subsequent calls should return false", func(t *testing.T) {
assert := testify.New(t)
broadcaster := createBroadcaster()
channel1 := make(chan *broadcastResult)
isFirstListener := broadcaster.AddListener("mock", channel1)
assert.True(isFirstListener)
channel2 := make(chan *broadcastResult)
isFirstListener = broadcaster.AddListener("mock", channel2)
assert.False(isFirstListener)
channel3 := make(chan *broadcastResult)
isFirstListener = broadcaster.AddListener("mock", channel3)
assert.False(isFirstListener)
})
})
t.Run("BroadcastAndRemove", func(t *testing.T) {
t.Run("should broadcast to all listeners and remove the key", func(t *testing.T) {
assert := testify.New(t)
broadcaster := createBroadcaster()
channel1 := make(chan *broadcastResult)
channel2 := make(chan *broadcastResult)
broadcaster.AddListener("mock", channel1)
broadcaster.AddListener("mock", channel2)
result := &broadcastResult{}
broadcaster.BroadcastAndRemove("mock", result)
assert.Equal(result, <-channel1)
assert.Equal(result, <-channel2)
channel3 := make(chan *broadcastResult)
isFirstListener := broadcaster.AddListener("mock", channel3)
assert.True(isFirstListener)
})
t.Run("call on not exists username", func(t *testing.T) {
assert := testify.New(t)
assert.NotPanics(func() {
broadcaster := createBroadcaster()
broadcaster.BroadcastAndRemove("mock", &broadcastResult{})
})
})
})
}
type mockEmitter struct {
mock.Mock
}
func (e *mockEmitter) Emit(name string, args ...interface{}) {
e.Called(append([]interface{}{name}, args...)...)
}
type mockUuidsProvider struct {
mock.Mock
}
func (m *mockUuidsProvider) GetUuid(username string) (*mojang.ProfileInfo, error) {
args := m.Called(username)
var result *mojang.ProfileInfo
if casted, ok := args.Get(0).(*mojang.ProfileInfo); ok {
result = casted
}
return result, args.Error(1)
}
type mockTexturesProvider struct {
mock.Mock
}
func (m *mockTexturesProvider) GetTextures(uuid string) (*mojang.SignedTexturesResponse, error) {
args := m.Called(uuid)
var result *mojang.SignedTexturesResponse
if casted, ok := args.Get(0).(*mojang.SignedTexturesResponse); ok {
result = casted
}
return result, args.Error(1)
}
type mockStorage struct {
mock.Mock
}
func (m *mockStorage) GetUuid(username string) (string, bool, error) {
args := m.Called(username)
return args.String(0), args.Bool(1), args.Error(2)
}
func (m *mockStorage) StoreUuid(username string, uuid string) error {
args := m.Called(username, uuid)
return args.Error(0)
}
func (m *mockStorage) GetTextures(uuid string) (*mojang.SignedTexturesResponse, error) {
args := m.Called(uuid)
var result *mojang.SignedTexturesResponse
if casted, ok := args.Get(0).(*mojang.SignedTexturesResponse); ok {
result = casted
}
return result, args.Error(1)
}
func (m *mockStorage) StoreTextures(uuid string, textures *mojang.SignedTexturesResponse) {
m.Called(uuid, textures)
}
type providerTestSuite struct {
suite.Suite
Provider *Provider
Emitter *mockEmitter
UuidsProvider *mockUuidsProvider
TexturesProvider *mockTexturesProvider
Storage *mockStorage
}
func (suite *providerTestSuite) SetupTest() {
suite.Emitter = &mockEmitter{}
suite.UuidsProvider = &mockUuidsProvider{}
suite.TexturesProvider = &mockTexturesProvider{}
suite.Storage = &mockStorage{}
suite.Provider = &Provider{
Emitter: suite.Emitter,
UUIDsProvider: suite.UuidsProvider,
TexturesProvider: suite.TexturesProvider,
Storage: suite.Storage,
}
}
func (suite *providerTestSuite) TearDownTest() {
suite.Emitter.AssertExpectations(suite.T())
suite.UuidsProvider.AssertExpectations(suite.T())
suite.TexturesProvider.AssertExpectations(suite.T())
suite.Storage.AssertExpectations(suite.T())
}
func TestProvider(t *testing.T) {
suite.Run(t, new(providerTestSuite))
}
func (suite *providerTestSuite) TestGetForUsernameWithoutAnyCache() {
expectedProfile := &mojang.ProfileInfo{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
expectedResult := &mojang.SignedTexturesResponse{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", false, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_call", "username", expectedProfile, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, nil).Once()
suite.Storage.On("GetUuid", "username").Once().Return("", false, nil)
suite.Storage.On("StoreUuid", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(nil)
suite.Storage.On("StoreTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult).Once()
suite.UuidsProvider.On("GetUuid", "username").Once().Return(expectedProfile, nil)
suite.TexturesProvider.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(expectedResult, nil)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Nil(err)
suite.Assert().Equal(expectedResult, result)
}
func (suite *providerTestSuite) TestGetForUsernameWithCachedUuid() {
var expectedCachedTextures *mojang.SignedTexturesResponse
expectedResult := &mojang.SignedTexturesResponse{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", true, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_cache", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_cache", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedCachedTextures, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, nil).Once()
suite.Storage.On("GetUuid", "username").Once().Return("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", true, nil)
suite.Storage.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(nil, nil)
suite.Storage.On("StoreTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult).Once()
suite.TexturesProvider.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Return(expectedResult, nil)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Nil(err)
suite.Assert().Equal(expectedResult, result)
}
func (suite *providerTestSuite) TestGetForUsernameWithFullyCachedResult() {
expectedResult := &mojang.SignedTexturesResponse{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", true, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_cache", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_cache", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult, nil).Once()
suite.Storage.On("GetUuid", "username").Once().Return("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", true, nil)
suite.Storage.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(expectedResult, nil)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Nil(err)
suite.Assert().Equal(expectedResult, result)
}
func (suite *providerTestSuite) TestGetForUsernameWithCachedUnknownUuid() {
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", true, nil).Once()
suite.Storage.On("GetUuid", "username").Once().Return("", true, nil)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Nil(result)
suite.Assert().Nil(err)
}
func (suite *providerTestSuite) TestGetForUsernameWhichHasNoMojangAccount() {
var expectedProfile *mojang.ProfileInfo
var expectedResult *mojang.SignedTexturesResponse
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", false, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_call", "username", expectedProfile, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, nil).Once()
suite.Storage.On("GetUuid", "username").Once().Return("", false, nil)
suite.Storage.On("StoreUuid", "username", "").Once().Return(nil)
suite.UuidsProvider.On("GetUuid", "username").Once().Return(nil, nil)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Nil(err)
suite.Assert().Nil(result)
}
func (suite *providerTestSuite) TestGetForUsernameWhichHasMojangAccountButHasNoMojangSkin() {
expectedProfile := &mojang.ProfileInfo{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
var expectedResult *mojang.SignedTexturesResponse
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", false, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_call", "username", expectedProfile, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, nil).Once()
suite.Storage.On("GetUuid", "username").Once().Return("", false, nil)
suite.Storage.On("StoreUuid", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(nil)
suite.Storage.On("StoreTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult).Once()
suite.UuidsProvider.On("GetUuid", "username").Once().Return(expectedProfile, nil)
suite.TexturesProvider.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(expectedResult, nil)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Equal(expectedResult, result)
suite.Assert().Nil(err)
}
// https://github.com/elyby/chrly/issues/29
func (suite *providerTestSuite) TestGetForUsernameWithCachedUuidThatHasBeenDisappeared() {
expectedErr := &mojang.EmptyResponse{}
expectedProfile := &mojang.ProfileInfo{Id: "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", Name: "username"}
var nilTexturesResponse *mojang.SignedTexturesResponse
expectedResult := &mojang.SignedTexturesResponse{Id: "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", Name: "username"}
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", true, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_cache", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_cache", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", nilTexturesResponse, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", nilTexturesResponse, expectedErr).Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_call", "username", expectedProfile, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_call", "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_call", "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", expectedResult, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, nil).Once()
suite.Storage.On("GetUuid", "username").Once().Return("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", true, nil)
suite.Storage.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(nil, nil)
suite.Storage.On("StoreUuid", "username", "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb").Once().Return(nil)
suite.Storage.On("StoreTextures", "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb", expectedResult).Once()
suite.UuidsProvider.On("GetUuid", "username").Return(expectedProfile, nil)
suite.TexturesProvider.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Return(nil, expectedErr)
suite.TexturesProvider.On("GetTextures", "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb").Return(expectedResult, nil)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Nil(err)
suite.Assert().Equal(expectedResult, result)
}
func (suite *providerTestSuite) TestGetForTheSameUsernames() {
expectedProfile := &mojang.ProfileInfo{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
expectedResult := &mojang.SignedTexturesResponse{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
suite.Emitter.On("Emit", "mojang_textures:call", "username").Twice()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Twice()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", false, nil).Twice()
suite.Emitter.On("Emit", "mojang_textures:already_processing", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_call", "username", expectedProfile, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, nil).Once()
suite.Storage.On("GetUuid", "username").Twice().Return("", false, nil)
suite.Storage.On("StoreUuid", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(nil)
suite.Storage.On("StoreTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult).Once()
// If possible, than remove this .After call
suite.UuidsProvider.On("GetUuid", "username").Once().After(time.Millisecond).Return(expectedProfile, nil)
suite.TexturesProvider.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(expectedResult, nil)
results := make([]*mojang.SignedTexturesResponse, 2)
var wg sync.WaitGroup
for i := 0; i < 2; i++ {
wg.Add(1)
go func(i int) {
textures, _ := suite.Provider.GetForUsername("username")
results[i] = textures
wg.Done()
}(i)
}
wg.Wait()
suite.Assert().Equal(expectedResult, results[0])
suite.Assert().Equal(expectedResult, results[1])
}
func (suite *providerTestSuite) TestGetForNotAllowedMojangUsername() {
result, err := suite.Provider.GetForUsername("Not allowed")
suite.Assert().Error(err, "invalid username")
suite.Assert().Nil(result)
}
func (suite *providerTestSuite) TestGetErrorFromUUIDsStorage() {
expectedErr := errors.New("mock error")
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", false, expectedErr).Once()
suite.Storage.On("GetUuid", "username").Once().Return("", false, expectedErr)
result, err := suite.Provider.GetForUsername("username")
suite.Assert().Nil(result)
suite.Assert().Equal(expectedErr, err)
}
func (suite *providerTestSuite) TestGetErrorFromUuidsProvider() {
var expectedProfile *mojang.ProfileInfo
var expectedResult *mojang.SignedTexturesResponse
err := errors.New("mock error")
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", false, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_call", "username", expectedProfile, err).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, err).Once()
suite.Storage.On("GetUuid", "username").Once().Return("", false, nil)
suite.UuidsProvider.On("GetUuid", "username").Once().Return(nil, err)
result, resErr := suite.Provider.GetForUsername("username")
suite.Assert().Nil(result)
suite.Assert().Equal(err, resErr)
}
func (suite *providerTestSuite) TestGetErrorFromTexturesProvider() {
expectedProfile := &mojang.ProfileInfo{Id: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Name: "username"}
var expectedResult *mojang.SignedTexturesResponse
err := errors.New("mock error")
suite.Emitter.On("Emit", "mojang_textures:call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_cache", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_cache", "username", "", false, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:before_result", "username", "").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:before_call", "username").Once()
suite.Emitter.On("Emit", "mojang_textures:usernames:after_call", "username", expectedProfile, nil).Once()
suite.Emitter.On("Emit", "mojang_textures:textures:before_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once()
suite.Emitter.On("Emit", "mojang_textures:textures:after_call", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", expectedResult, err).Once()
suite.Emitter.On("Emit", "mojang_textures:after_result", "username", expectedResult, err).Once()
suite.Storage.On("GetUuid", "username").Return("", false, nil)
suite.Storage.On("StoreUuid", "username", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Return(nil)
suite.UuidsProvider.On("GetUuid", "username").Once().Return(expectedProfile, nil)
suite.TexturesProvider.On("GetTextures", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa").Once().Return(nil, err)
result, resErr := suite.Provider.GetForUsername("username")
suite.Assert().Nil(result)
suite.Assert().Equal(err, resErr)
}