精简后的项目：仅保留 api/ui 源码、文档、构建依赖
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package periodic_scanner
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import (
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"errors"
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"sync"
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"testing"
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"time"
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"github.com/photoview/photoview/api/graphql/models"
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"github.com/photoview/photoview/api/test_utils"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/mock"
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"gorm.io/gorm"
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)
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// MockScannerQueue implements the ScannerQueue interface for testing
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type MockScannerQueue struct {
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mock.Mock
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}
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func (m *MockScannerQueue) AddAllToQueue() error {
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return m.Called().Error(0)
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}
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func TestMain(m *testing.M) {
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test_utils.UnitTestRun(m)
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}
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func resetPeriodicScanner() {
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if mainPeriodicScanner != nil {
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select {
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case <-mainPeriodicScanner.done:
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// Already closed
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default:
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close(mainPeriodicScanner.done)
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}
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if mainPeriodicScanner.ticker != nil {
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mainPeriodicScanner.ticker.Stop()
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}
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mainPeriodicScanner = nil
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}
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}
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func createTestSiteInfo(db *gorm.DB, interval int) error {
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siteInfo := models.SiteInfo{
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InitialSetup: false,
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PeriodicScanInterval: interval,
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ConcurrentWorkers: 1,
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}
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return db.Create(&siteInfo).Error
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}
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func TestGetPeriodicScanInterval(t *testing.T) {
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db := test_utils.DatabaseTest(t)
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t.Run("successful retrieval", func(t *testing.T) {
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assert.NoError(t, createTestSiteInfo(db, 300), "Failed to create test site info with 300 second interval")
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duration, err := getPeriodicScanInterval(db)
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assert.NoError(t, err, "Failed to retrieve periodic scan interval from database")
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assert.Equal(t, 300*time.Second, duration,
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"Periodic scan interval should be 300 seconds but got %v", duration)
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})
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t.Run("database error - no site info", func(t *testing.T) {
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db.Exec("DELETE FROM site_info")
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duration, err := getPeriodicScanInterval(db)
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assert.Error(t, err, "Expected error when no site info exists in database")
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assert.Equal(t, time.Duration(0), duration,
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"Duration should be zero when database error occurs, but got %v", duration)
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})
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}
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func TestInitializePeriodicScanner(t *testing.T) {
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db := test_utils.DatabaseTest(t)
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t.Run("successful initialization with injection", func(t *testing.T) {
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defer resetPeriodicScanner()
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mockQueue := &MockScannerQueue{}
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assert.NoError(t, createTestSiteInfo(db, 300), "Failed to create test site info with 300 second interval")
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assert.NoError(t, InitializePeriodicScannerWithQueue(db, mockQueue),
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"Failed to initialize periodic scanner with mock queue")
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// Verify initialization
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assert.NotNil(t, mainPeriodicScanner, "mainPeriodicScanner should not be nil after successful initialization")
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assert.NotNil(t, mainPeriodicScanner.scannerQueue, "Scanner queue should not be nil after initialization")
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assert.Equal(t, mockQueue, mainPeriodicScanner.scannerQueue, "Scanner should use the injected mock queue instance")
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// Verify ticker is set up
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mainPeriodicScanner.tickerLocker.Lock()
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tickerExists := mainPeriodicScanner.ticker != nil
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mainPeriodicScanner.tickerLocker.Unlock()
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assert.True(t, tickerExists, "Ticker should be created and set up after scanner initialization")
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})
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t.Run("backward compatibility with original function", func(t *testing.T) {
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defer resetPeriodicScanner()
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assert.NoError(t, createTestSiteInfo(db, 300), "Failed to create test site info with 300 second interval")
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assert.NoError(t, InitializePeriodicScanner(db),
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"Failed to initialize periodic scanner using original function")
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// Verify it uses RealScannerQueue
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assert.NotNil(t, mainPeriodicScanner,
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"mainPeriodicScanner should be initialized by original InitializePeriodicScanner function")
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assert.IsType(t, &RealScannerQueue{}, mainPeriodicScanner.scannerQueue,
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"Original InitializePeriodicScanner should use RealScannerQueue by default")
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})
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t.Run("double initialization error", func(t *testing.T) {
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defer resetPeriodicScanner()
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mockQueue := &MockScannerQueue{}
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assert.NoError(t, createTestSiteInfo(db, 300), "Failed to create test site info with 300 second interval")
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assert.NoError(t, InitializePeriodicScannerWithQueue(db, mockQueue),
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"Failed first initialization for double initialization test")
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err := InitializePeriodicScannerWithQueue(db, mockQueue)
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assert.Error(t, err, "Second initialization attempt should return an error")
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assert.Contains(t, err.Error(), "already been initialized",
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"Double initialization error should contain 'already been initialized' message")
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})
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}
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func TestScanIntervalRunnerWithMocking(t *testing.T) {
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t.Run("runner calls queue on ticker events", func(t *testing.T) {
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mockQueue := &MockScannerQueue{}
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// Use a channel to synchronize and count calls
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callChan := make(chan struct{}, 5) // Buffer for multiple calls
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mockQueue.On("AddAllToQueue").Return(nil).Run(func(args mock.Arguments) {
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select {
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case callChan <- struct{}{}:
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default:
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// Channel full, but that's okay
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}
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}).Maybe()
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ps := &periodicScanner{
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ticker: time.NewTicker(50 * time.Millisecond),
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ticker_changed: make(chan bool, 1),
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done: make(chan struct{}),
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tickerLocker: sync.Mutex{},
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scannerQueue: mockQueue,
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}
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// Start runner
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go ps.scanIntervalRunner()
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// Wait for at least one call with timeout
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select {
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case <-callChan:
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// Success - at least one call received
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case <-time.After(200 * time.Millisecond):
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t.Fatal("Expected at least one call to AddAllToQueue within 200ms timeout, but ticker events were not processed")
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}
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// Proper cleanup - stop ticker first, then close done
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ps.ticker.Stop()
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close(ps.done)
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// Give time for goroutine to finish
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time.Sleep(50 * time.Millisecond)
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// Verify the queue was called as expected
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mockQueue.AssertExpectations(t)
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})
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t.Run("runner handles queue errors gracefully", func(t *testing.T) {
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mockQueue := &MockScannerQueue{}
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// Mock queue to return an error
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mockQueue.On("AddAllToQueue").Return(errors.New("queue error")).Maybe()
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ps := &periodicScanner{
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ticker: time.NewTicker(30 * time.Millisecond),
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ticker_changed: make(chan bool, 1),
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done: make(chan struct{}),
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tickerLocker: sync.Mutex{},
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scannerQueue: mockQueue,
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}
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// Start runner and let it run briefly
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go ps.scanIntervalRunner()
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time.Sleep(80 * time.Millisecond)
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// Proper cleanup
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ps.ticker.Stop()
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close(ps.done)
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time.Sleep(50 * time.Millisecond)
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// Test passes if no panic occurred - errors should be logged gracefully
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mockQueue.AssertExpectations(t)
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})
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t.Run("runner responds to shutdown signal", func(t *testing.T) {
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mockQueue := &MockScannerQueue{}
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ps := &periodicScanner{
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ticker: nil, // No ticker to avoid timing issues
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ticker_changed: make(chan bool, 1),
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done: make(chan struct{}),
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tickerLocker: sync.Mutex{},
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scannerQueue: mockQueue,
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}
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runnerDone := make(chan bool)
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go func() {
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ps.scanIntervalRunner()
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close(runnerDone)
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}()
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close(ps.done)
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select {
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case <-runnerDone:
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// Success
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case <-time.After(1 * time.Second):
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t.Fatal("scanIntervalRunner goroutine did not exit within 1 second after closing done channel")
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}
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mockQueue.AssertExpectations(t)
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})
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t.Run("runner responds to ticker changes", func(t *testing.T) {
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mockQueue := &MockScannerQueue{}
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ps := &periodicScanner{
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ticker: nil, // Start without ticker
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ticker_changed: make(chan bool, 1),
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done: make(chan struct{}),
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tickerLocker: sync.Mutex{},
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scannerQueue: mockQueue,
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}
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runnerDone := make(chan bool)
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go func() {
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ps.scanIntervalRunner()
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close(runnerDone)
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}()
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// Send ticker change signal
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select {
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case ps.ticker_changed <- true:
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case <-time.After(100 * time.Millisecond):
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t.Fatal("Could not send ticker change signal within 100ms - channel may be blocked")
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}
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// Clean shutdown
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close(ps.done)
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// Wait for completion
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select {
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case <-runnerDone:
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// Success
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case <-time.After(500 * time.Millisecond):
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t.Fatal("scanIntervalRunner did not exit within 500ms after receiving ticker change signal and shutdown")
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}
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// Test passes if no deadlock occurs
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mockQueue.AssertExpectations(t)
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})
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}
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func TestRealScannerQueue(t *testing.T) {
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t.Run("real scanner queue interface compliance", func(t *testing.T) {
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queue := &RealScannerQueue{}
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// Just verify it implements the interface correctly
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var _ ScannerQueue = queue
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// Test that it doesn't panic when created
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assert.NotNil(t, queue, "RealScannerQueue instance should not be nil after creation")
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// We don't test the actual call since it requires external setup
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})
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}
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