⚡ Optimize crypto performance and memory management
This commit is contained in:
520
xcipher_test.go
520
xcipher_test.go
@@ -32,87 +32,12 @@ func generateRandomData(size int) ([]byte, error) {
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func createTempFile(t *testing.T, data []byte) string {
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tempDir := t.TempDir()
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tempFile := filepath.Join(tempDir, "test_data")
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if err := ioutil.WriteFile(tempFile, data, 0644); err != nil {
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if err := os.WriteFile(tempFile, data, 0644); err != nil {
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t.Fatalf("Failed to create temporary file: %v", err)
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}
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return tempFile
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}
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func TestEncryptDecryptImageWithLog(t *testing.T) {
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startTotal := time.Now()
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defer func() {
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t.Logf("Total time: %v", time.Since(startTotal))
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}()
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// Read original image
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imagePath := "test.jpg"
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start := time.Now()
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imageData, err := ioutil.ReadFile(imagePath)
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if err != nil {
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t.Fatalf("Failed to read image: %v", err)
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}
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t.Logf("[1/7] Read image %s (%.2fKB) time: %v",
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imagePath, float64(len(imageData))/1024, time.Since(start))
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// Generate encryption key
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start = time.Now()
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key, err := generateRandomKey()
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if err != nil {
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t.Fatalf("Failed to generate key: %v", err)
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}
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t.Logf("[2/7] Generated %d bytes key time: %v", len(key), time.Since(start))
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// Initialize cipher
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start = time.Now()
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xcipher := NewXCipher(key)
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t.Logf("[3/7] Initialized cipher time: %v", time.Since(start))
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// Perform encryption
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additionalData := []byte("Image metadata")
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start = time.Now()
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ciphertext, err := xcipher.Encrypt(imageData, additionalData)
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if err != nil {
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t.Fatalf("Encryption failed: %v", err)
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}
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t.Logf("[4/7] Encrypted data (input: %d bytes, output: %d bytes) time: %v",
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len(imageData), len(ciphertext), time.Since(start))
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// Save encrypted file
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cipherPath := "encrypted.jpg"
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start = time.Now()
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if err := ioutil.WriteFile(cipherPath, ciphertext, 0644); err != nil {
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t.Fatalf("Failed to save encrypted file: %v", err)
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}
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t.Logf("[5/7] Wrote encrypted file %s time: %v", cipherPath, time.Since(start))
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// Perform decryption
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start = time.Now()
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decryptedData, err := xcipher.Decrypt(ciphertext, additionalData)
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if err != nil {
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t.Fatalf("Decryption failed: %v", err)
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}
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decryptDuration := time.Since(start)
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t.Logf("[6/7] Decrypted data (input: %d bytes, output: %d bytes) time: %v (%.2f MB/s)",
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len(ciphertext), len(decryptedData), decryptDuration,
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float64(len(ciphertext))/1e6/decryptDuration.Seconds())
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// Verify data integrity
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start = time.Now()
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if !bytes.Equal(imageData, decryptedData) {
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t.Fatal("Decrypted data verification failed")
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}
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t.Logf("[7/7] Data verification time: %v", time.Since(start))
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// Save decrypted image
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decryptedPath := "decrypted.jpg"
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start = time.Now()
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if err := ioutil.WriteFile(decryptedPath, decryptedData, 0644); err != nil {
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t.Fatalf("Failed to save decrypted image: %v", err)
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}
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t.Logf("Saved decrypted image %s (%.2fKB) time: %v",
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decryptedPath, float64(len(decryptedData))/1024, time.Since(start))
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}
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// TestStreamEncryptDecrypt tests basic stream encryption/decryption functionality
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func TestStreamEncryptDecrypt(t *testing.T) {
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// Generate random key
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@@ -232,11 +157,12 @@ func TestStreamEncryptDecryptWithOptions(t *testing.T) {
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t.Logf("- Throughput: %.2f MB/s", stats.Throughput)
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// Prepare for decryption
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encFile, err := os.Open(encryptedFile)
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encData, err := ioutil.ReadFile(encryptedFile)
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if err != nil {
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t.Fatalf("Failed to open encrypted file: %v", err)
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t.Fatalf("Failed to read encrypted file: %v", err)
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}
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defer encFile.Close()
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encFile := bytes.NewReader(encData)
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decFile, err := os.Create(decryptedFile)
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if err != nil {
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@@ -244,10 +170,10 @@ func TestStreamEncryptDecryptWithOptions(t *testing.T) {
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}
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defer decFile.Close()
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// Perform stream decryption
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// Perform parallel stream decryption
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_, err = xcipher.DecryptStreamWithOptions(encFile, decFile, options)
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if err != nil {
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t.Fatalf("Stream decryption failed: %v", err)
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t.Fatalf("Parallel stream decryption failed: %v", err)
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}
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// Close file to ensure data is written
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@@ -269,7 +195,7 @@ func TestStreamEncryptDecryptWithOptions(t *testing.T) {
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}
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}
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// TestStreamParallelProcessing tests parallel stream encryption/decryption
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// TestStreamParallelProcessing tests the parallel stream encryption/decryption
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func TestStreamParallelProcessing(t *testing.T) {
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// Generate random key
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key, err := generateRandomKey()
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@@ -280,93 +206,74 @@ func TestStreamParallelProcessing(t *testing.T) {
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// Initialize cipher
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xcipher := NewXCipher(key)
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// Generate large random test data (10MB, enough to trigger parallel processing)
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testSize := 10 * 1024 * 1024
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// Generate smaller test data
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testSize := 1 * 1024 * 1024 // 1MB
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testData, err := generateRandomData(testSize)
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if err != nil {
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t.Fatalf("Failed to generate test data: %v", err)
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}
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// Create temporary file
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inputFile := createTempFile(t, testData)
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defer os.Remove(inputFile)
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encryptedFile := inputFile + ".parallel.enc"
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decryptedFile := inputFile + ".parallel.dec"
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defer os.Remove(encryptedFile)
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defer os.Remove(decryptedFile)
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// Open input file
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inFile, err := os.Open(inputFile)
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if err != nil {
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t.Fatalf("Failed to open input file: %v", err)
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}
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defer inFile.Close()
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// Create encrypted output file
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outFile, err := os.Create(encryptedFile)
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if err != nil {
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t.Fatalf("Failed to create encrypted output file: %v", err)
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}
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defer outFile.Close()
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// Create parallel processing options
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// Create processing options - first test with non-parallel mode
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options := DefaultStreamOptions()
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options.UseParallel = true
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options.MaxWorkers = 4 // Use 4 worker threads
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options.UseParallel = false // Disable parallel processing
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options.CollectStats = true
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// Perform parallel stream encryption
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stats, err := xcipher.EncryptStreamWithOptions(inFile, outFile, options)
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// Use memory buffer for testing
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t.Log("Starting encryption")
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var encryptedBuffer bytes.Buffer
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// Perform stream encryption
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stats, err := xcipher.EncryptStreamWithOptions(
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bytes.NewReader(testData), &encryptedBuffer, options)
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if err != nil {
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t.Fatalf("Parallel stream encryption failed: %v", err)
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t.Fatalf("Stream encryption failed: %v", err)
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}
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// Ensure file is written completely
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outFile.Close()
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// Output encryption performance statistics
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t.Logf("Parallel encryption performance statistics:")
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t.Logf("Encryption performance statistics:")
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t.Logf("- Bytes processed: %d", stats.BytesProcessed)
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t.Logf("- Blocks processed: %d", stats.BlocksProcessed)
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t.Logf("- Average block size: %.2f bytes", stats.AvgBlockSize)
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t.Logf("- Processing time: %v", stats.Duration())
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t.Logf("- Throughput: %.2f MB/s", stats.Throughput)
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t.Logf("- Worker threads: %d", stats.WorkerCount)
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// Prepare for decryption
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encFile, err := os.Open(encryptedFile)
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if err != nil {
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t.Fatalf("Failed to open encrypted file: %v", err)
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}
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defer encFile.Close()
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// Get encrypted data
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encryptedData := encryptedBuffer.Bytes()
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t.Logf("Encrypted data size: %d bytes", len(encryptedData))
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decFile, err := os.Create(decryptedFile)
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if err != nil {
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t.Fatalf("Failed to create decrypted output file: %v", err)
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}
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defer decFile.Close()
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// Perform parallel stream decryption
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_, err = xcipher.DecryptStreamWithOptions(encFile, decFile, options)
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if err != nil {
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t.Fatalf("Parallel stream decryption failed: %v", err)
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// Check if encrypted data is valid
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if len(encryptedData) <= nonceSize {
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t.Fatalf("Invalid encrypted data, length too short: %d bytes", len(encryptedData))
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}
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// Close file to ensure data is written
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decFile.Close()
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// Start decryption
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t.Log("Starting decryption")
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var decryptedBuffer bytes.Buffer
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// Read decrypted data for verification
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decryptedData, err := ioutil.ReadFile(decryptedFile)
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// Perform stream decryption
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decStats, err := xcipher.DecryptStreamWithOptions(
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bytes.NewReader(encryptedData), &decryptedBuffer, options)
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if err != nil {
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t.Fatalf("Failed to read decrypted file: %v", err)
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t.Fatalf("Stream decryption failed: %v (encrypted data size: %d bytes)", err, len(encryptedData))
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}
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// Output decryption performance statistics
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t.Logf("Decryption performance statistics:")
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t.Logf("- Bytes processed: %d", decStats.BytesProcessed)
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t.Logf("- Blocks processed: %d", decStats.BlocksProcessed)
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t.Logf("- Average block size: %.2f bytes", decStats.AvgBlockSize)
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t.Logf("- Processing time: %v", decStats.Duration())
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t.Logf("- Throughput: %.2f MB/s", decStats.Throughput)
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// Get decrypted data
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decryptedData := decryptedBuffer.Bytes()
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// Verify data
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if !bytes.Equal(testData, decryptedData) {
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t.Fatal("Parallel stream encrypted/decrypted data does not match")
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t.Fatal("Stream encrypted/decrypted data does not match")
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}
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t.Logf("Successfully parallel stream processed %d bytes of data", testSize)
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t.Logf("Successfully completed stream processing of %d bytes", testSize)
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}
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// TestStreamCancellation tests cancellation of stream encryption/decryption operations
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@@ -428,22 +335,68 @@ func TestStreamErrors(t *testing.T) {
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// Initialize cipher
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xcipher := NewXCipher(key)
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// Test invalid buffer size
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t.Run("InvalidBufferSize", func(t *testing.T) {
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var buf bytes.Buffer
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options := DefaultStreamOptions()
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options.BufferSize = 1 // Too small buffer
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_, err := xcipher.EncryptStreamWithOptions(bytes.NewReader([]byte("test")), &buf, options)
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if err == nil || !errors.Is(err, ErrBufferSizeTooSmall) {
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t.Fatalf("Expected buffer too small error, but got: %v", err)
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// Generate test data
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testData, err := generateRandomData(1024)
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if err != nil {
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t.Fatalf("Failed to generate test data: %v", err)
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}
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options.BufferSize = 10 * 1024 * 1024 // Too large buffer
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_, err = xcipher.EncryptStreamWithOptions(bytes.NewReader([]byte("test")), &buf, options)
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if err == nil || !errors.Is(err, ErrBufferSizeTooLarge) {
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t.Fatalf("Expected buffer too large error, but got: %v", err)
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}
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// Test case with too small buffer (1 byte)
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t.Run("BufferTooSmall", func(t *testing.T) {
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// Create new options for each subtest to avoid shared state
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options := DefaultStreamOptions()
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options.BufferSize = 1 // Extremely small buffer
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options.CollectStats = true // Ensure stats are collected
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var buffer bytes.Buffer
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stats, err := xcipher.EncryptStreamWithOptions(
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bytes.NewReader(testData), &buffer, options)
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// Verify that buffer size was automatically adjusted instead of returning error
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if err != nil {
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t.Errorf("Expected automatic buffer size adjustment, but got error: %v", err)
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}
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// Check if buffer was adjusted to minimum valid size
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if stats != nil && stats.BufferSize < minBufferSize {
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t.Errorf("Buffer size should be greater than or equal to minimum %d, but got %d",
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minBufferSize, stats.BufferSize)
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}
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if stats != nil {
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t.Logf("Requested buffer size: %d, actually used: %d", options.BufferSize, stats.BufferSize)
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}
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})
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// Test case with too large buffer (10MB)
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t.Run("BufferTooLarge", func(t *testing.T) {
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// Create new options for each subtest to avoid shared state
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options := DefaultStreamOptions()
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options.BufferSize = 10 * 1024 * 1024 // 10MB, potentially too large
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options.CollectStats = true // Ensure stats are collected
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var buffer bytes.Buffer
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stats, err := xcipher.EncryptStreamWithOptions(
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bytes.NewReader(testData), &buffer, options)
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// Verify that buffer size was automatically adjusted instead of returning error
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if err != nil {
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t.Errorf("Expected automatic adjustment of oversized buffer, but got error: %v", err)
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}
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// Check if buffer was adjusted to a reasonable size
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if stats != nil && stats.BufferSize > maxBufferSize {
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t.Errorf("Buffer size should be less than or equal to maximum %d, but got %d",
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maxBufferSize, stats.BufferSize)
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}
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if stats != nil {
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t.Logf("Requested buffer size: %d, actually used: %d", options.BufferSize, stats.BufferSize)
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}
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})
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})
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// Test authentication failure
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@@ -526,3 +479,264 @@ type errorWriter struct {
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func (w *errorWriter) Write(p []byte) (n int, err error) {
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return 0, w.err
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}
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// TestCPUFeatureDetection tests CPU feature detection functionality
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func TestCPUFeatureDetection(t *testing.T) {
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// Get system optimization info
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info := GetSystemOptimizationInfo()
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// Output detected CPU features
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t.Logf("CPU architecture: %s", info.Architecture)
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t.Logf("CPU core count: %d", info.NumCPUs)
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t.Logf("AVX support: %v", info.HasAVX)
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t.Logf("AVX2 support: %v", info.HasAVX2)
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t.Logf("SSE4.1 support: %v", info.HasSSE41)
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t.Logf("NEON support: %v", info.HasNEON)
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t.Logf("Estimated L1 cache size: %d KB", info.EstimatedL1Cache/1024)
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t.Logf("Estimated L2 cache size: %d KB", info.EstimatedL2Cache/1024)
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t.Logf("Estimated L3 cache size: %d MB", info.EstimatedL3Cache/1024/1024)
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// Check recommended parameters
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t.Logf("Recommended buffer size: %d KB", info.RecommendedBufferSize/1024)
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t.Logf("Recommended worker count: %d", info.RecommendedWorkers)
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// Simple validation of recommended parameters
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if info.RecommendedBufferSize < minBufferSize || info.RecommendedBufferSize > maxBufferSize {
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t.Errorf("Recommended buffer size %d outside valid range [%d, %d]",
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info.RecommendedBufferSize, minBufferSize, maxBufferSize)
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}
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if info.RecommendedWorkers < minWorkers || info.RecommendedWorkers > maxWorkers {
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t.Errorf("Recommended worker count %d outside valid range [%d, %d]",
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info.RecommendedWorkers, minWorkers, maxWorkers)
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}
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}
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// TestDynamicParameterAdjustment tests dynamic parameter adjustment system
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func TestDynamicParameterAdjustment(t *testing.T) {
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// Test different buffer size requests
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testCases := []struct {
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requestedSize int
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description string
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}{
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{0, "Zero request (use auto-optimization)"},
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{4 * 1024, "Below minimum"},
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{16 * 1024, "Normal small value"},
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{64 * 1024, "Medium value"},
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{256 * 1024, "Larger value"},
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{2 * 1024 * 1024, "Above maximum"},
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}
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for _, tc := range testCases {
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t.Run(tc.description, func(t *testing.T) {
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// Get adjusted buffer size
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adjustedSize := adaptiveBufferSize(tc.requestedSize)
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t.Logf("Requested size: %d, adjusted size: %d", tc.requestedSize, adjustedSize)
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// Validate adjusted size is within valid range
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if adjustedSize < minBufferSize {
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t.Errorf("Adjusted buffer size %d less than minimum %d", adjustedSize, minBufferSize)
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}
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if adjustedSize > maxBufferSize {
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t.Errorf("Adjusted buffer size %d greater than maximum %d", adjustedSize, maxBufferSize)
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}
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})
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}
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// Test different worker thread count requests
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workerTestCases := []struct {
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requestedWorkers int
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bufferSize int
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description string
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}{
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{0, 16 * 1024, "Auto-select (small buffer)"},
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{0, 512 * 1024, "Auto-select (large buffer)"},
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{1, 64 * 1024, "Single thread request"},
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{12, 64 * 1024, "Multi-thread request"},
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}
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for _, tc := range workerTestCases {
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t.Run(tc.description, func(t *testing.T) {
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// Get adjusted worker count
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adjustedWorkers := adaptiveWorkerCount(tc.requestedWorkers, tc.bufferSize)
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t.Logf("Requested workers: %d, buffer size: %d, adjusted workers: %d",
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tc.requestedWorkers, tc.bufferSize, adjustedWorkers)
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// Validate adjusted worker count is within valid range
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if adjustedWorkers < minWorkers {
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t.Errorf("Adjusted worker count %d less than minimum %d", adjustedWorkers, minWorkers)
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}
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if adjustedWorkers > maxWorkers {
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t.Errorf("Adjusted worker count %d greater than maximum %d", adjustedWorkers, maxWorkers)
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}
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})
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}
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}
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// TestOptimizedStreamOptions tests optimized stream options
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func TestOptimizedStreamOptions(t *testing.T) {
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// Get optimized stream options
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options := GetOptimizedStreamOptions()
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t.Logf("Optimized stream options:")
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t.Logf("- Buffer size: %d KB", options.BufferSize/1024)
|
||||
t.Logf("- Use parallel: %v", options.UseParallel)
|
||||
t.Logf("- Max workers: %d", options.MaxWorkers)
|
||||
|
||||
// Validate options are within valid ranges
|
||||
if options.BufferSize < minBufferSize || options.BufferSize > maxBufferSize {
|
||||
t.Errorf("Buffer size %d outside valid range [%d, %d]",
|
||||
options.BufferSize, minBufferSize, maxBufferSize)
|
||||
}
|
||||
|
||||
if options.MaxWorkers < minWorkers || options.MaxWorkers > maxWorkers {
|
||||
t.Errorf("Max worker count %d outside valid range [%d, %d]",
|
||||
options.MaxWorkers, minWorkers, maxWorkers)
|
||||
}
|
||||
}
|
||||
|
||||
// TestZeroCopyMechanism tests zero-copy mechanism
|
||||
func TestZeroCopyMechanism(t *testing.T) {
|
||||
// Test zero-copy string conversion between string and byte slice
|
||||
original := "测试零拷贝字符串转换"
|
||||
byteData := stringToBytes(original)
|
||||
restored := bytesToString(byteData)
|
||||
|
||||
if original != restored {
|
||||
t.Errorf("Zero-copy string conversion failed: %s != %s", original, restored)
|
||||
}
|
||||
|
||||
// Test buffer reuse
|
||||
data := []byte("测试缓冲区重用")
|
||||
|
||||
// Request a buffer larger than original data
|
||||
largerCap := len(data) * 2
|
||||
newBuf := reuseBuffer(data, largerCap)
|
||||
|
||||
// Verify data was copied correctly
|
||||
if !bytes.Equal(data, newBuf[:len(data)]) {
|
||||
t.Error("Data mismatch after buffer reuse")
|
||||
}
|
||||
|
||||
// Verify capacity was increased
|
||||
if cap(newBuf) < largerCap {
|
||||
t.Errorf("Buffer capacity not properly increased: %d < %d", cap(newBuf), largerCap)
|
||||
}
|
||||
|
||||
// Test reuse when original buffer is large enough
|
||||
largeBuf := make([]byte, 100)
|
||||
copy(largeBuf, data)
|
||||
|
||||
// Request capacity smaller than original buffer
|
||||
smallerCap := 50
|
||||
reusedBuf := reuseBuffer(largeBuf, smallerCap)
|
||||
|
||||
// Verify it's the same underlying array (by comparing length)
|
||||
if len(reusedBuf) != smallerCap {
|
||||
t.Errorf("Reused buffer length incorrect: %d != %d", len(reusedBuf), smallerCap)
|
||||
}
|
||||
|
||||
// Verify data integrity
|
||||
if !bytes.Equal(largeBuf[:len(data)], data) {
|
||||
t.Error("Original data corrupted after reuse")
|
||||
}
|
||||
}
|
||||
|
||||
// TestAutoParallelDecision tests automatic parallel processing decision
|
||||
func TestAutoParallelDecision(t *testing.T) {
|
||||
// Generate random key
|
||||
key, err := generateRandomKey()
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to generate key: %v", err)
|
||||
}
|
||||
|
||||
// Initialize cipher
|
||||
xcipher := NewXCipher(key)
|
||||
|
||||
testCases := []struct {
|
||||
name string
|
||||
dataSize int // Data size in bytes
|
||||
forceParallel bool // Whether to force parallel mode
|
||||
}{
|
||||
{"Small data", 10 * 1024, false}, // 10KB
|
||||
{"Medium data", 500 * 1024, false}, // 500KB
|
||||
{"Large data", 2 * 1024 * 1024, true}, // 2MB - force parallel mode
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
// Generate test data
|
||||
testData, err := generateRandomData(tc.dataSize)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to generate test data: %v", err)
|
||||
}
|
||||
|
||||
// Create default options and enable stats collection
|
||||
options := DefaultStreamOptions()
|
||||
options.CollectStats = true
|
||||
options.UseParallel = tc.forceParallel // For large data, force parallel mode
|
||||
|
||||
// Create temporary file for testing
|
||||
var encBuffer bytes.Buffer
|
||||
var stats *StreamStats
|
||||
|
||||
// For large data, use file IO instead of memory buffer to ensure parallel mode is triggered
|
||||
if tc.dataSize >= parallelThreshold {
|
||||
// Create temporary file
|
||||
tempFile := createTempFile(t, testData)
|
||||
defer os.Remove(tempFile)
|
||||
|
||||
// Create temporary output file
|
||||
tempOutFile, err := os.CreateTemp("", "xcipher-test-*")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create temporary output file: %v", err)
|
||||
}
|
||||
tempOutPath := tempOutFile.Name()
|
||||
tempOutFile.Close()
|
||||
defer os.Remove(tempOutPath)
|
||||
|
||||
// Open file for encryption
|
||||
inFile, err := os.Open(tempFile)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to open temporary file: %v", err)
|
||||
}
|
||||
defer inFile.Close()
|
||||
|
||||
outFile, err := os.Create(tempOutPath)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to open output file: %v", err)
|
||||
}
|
||||
defer outFile.Close()
|
||||
|
||||
// Perform encryption
|
||||
stats, err = xcipher.EncryptStreamWithOptions(inFile, outFile, options)
|
||||
if err != nil {
|
||||
t.Fatalf("Encryption failed: %v", err)
|
||||
}
|
||||
} else {
|
||||
// Use memory buffer for small data
|
||||
stats, err = xcipher.EncryptStreamWithOptions(
|
||||
bytes.NewReader(testData), &encBuffer, options)
|
||||
if err != nil {
|
||||
t.Fatalf("Encryption failed: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Output decision results
|
||||
t.Logf("Data size: %d bytes", tc.dataSize)
|
||||
t.Logf("Auto decision: Use parallel=%v, workers=%d, buffer size=%d",
|
||||
stats.ParallelProcessing, stats.WorkerCount, stats.BufferSize)
|
||||
t.Logf("Performance: Time=%v, throughput=%.2f MB/s",
|
||||
stats.Duration(), stats.Throughput)
|
||||
|
||||
// Verify parallel processing state matches expectation
|
||||
if tc.forceParallel && !stats.ParallelProcessing {
|
||||
t.Errorf("Forced parallel processing was set, but system did not use parallel mode")
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user