AoXuan
228e66315c
- 新增多个源文件和目录，包括 app.rc、assets、build 脚本等 - 实现了与 MirrorChyan API 交互的客户端逻辑 - 添加了版本检查、更新检测和下载 URL 生成等功能 - 嵌入了配置模板和资源文件系统 - 提供了完整的构建和发布流程
1392 lines
40 KiB
Go
1392 lines
40 KiB
Go
package download
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import (
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"crypto/sha256"
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"encoding/hex"
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"fmt"
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"net/http"
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"net/http/httptest"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"time"
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)
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func TestNewManager(t *testing.T) {
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manager := NewManager()
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if manager == nil {
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t.Fatal("NewManager() returned nil")
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}
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if manager.client == nil {
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t.Fatal("Manager client is nil")
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}
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if manager.timeout != 30*time.Second {
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t.Errorf("Expected timeout 30s, got %v", manager.timeout)
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}
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}
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func TestDownload(t *testing.T) {
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// Create test content
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testContent := "This is test content for download"
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// Create test server
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(testContent))
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}))
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defer server.Close()
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// Create temporary directory
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tempDir, err := os.MkdirTemp("", "download_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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// Test download
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manager := NewManager()
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destPath := filepath.Join(tempDir, "test_file.txt")
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var progressUpdates []DownloadProgress
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progressCallback := func(progress DownloadProgress) {
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progressUpdates = append(progressUpdates, progress)
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}
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err = manager.Download(server.URL, destPath, progressCallback)
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if err != nil {
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t.Fatalf("Download failed: %v", err)
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}
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// Verify file exists and content
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content, err := os.ReadFile(destPath)
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if err != nil {
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t.Fatalf("Failed to read downloaded file: %v", err)
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}
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if string(content) != testContent {
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t.Errorf("Expected content %q, got %q", testContent, string(content))
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}
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// Verify progress updates
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if len(progressUpdates) == 0 {
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t.Error("No progress updates received")
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}
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// Check final progress
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finalProgress := progressUpdates[len(progressUpdates)-1]
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if finalProgress.Percentage != 100 {
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t.Errorf("Expected final percentage 100, got %f", finalProgress.Percentage)
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}
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if finalProgress.BytesDownloaded != int64(len(testContent)) {
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t.Errorf("Expected bytes downloaded %d, got %d", len(testContent), finalProgress.BytesDownloaded)
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}
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}
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func TestDownloadWithResume(t *testing.T) {
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testContent := "This is a longer test content for resume functionality testing"
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partialContent := testContent[:20] // First 20 bytes
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remainingContent := testContent[20:] // Remaining bytes
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// Create test server that supports range requests
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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rangeHeader := r.Header.Get("Range")
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if rangeHeader != "" {
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// Handle range request
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if strings.HasPrefix(rangeHeader, "bytes=20-") {
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w.Header().Set("Content-Range", fmt.Sprintf("bytes 20-%d/%d", len(testContent)-1, len(testContent)))
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(remainingContent)))
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w.WriteHeader(http.StatusPartialContent)
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w.Write([]byte(remainingContent))
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return
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}
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}
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// Handle normal request
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(testContent))
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}))
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defer server.Close()
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// Create temporary directory
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tempDir, err := os.MkdirTemp("", "download_resume_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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destPath := filepath.Join(tempDir, "test_resume_file.txt")
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// Create partial file
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err = os.WriteFile(destPath, []byte(partialContent), 0644)
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if err != nil {
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t.Fatal(err)
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}
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// Test resume download
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manager := NewManager()
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var progressUpdates []DownloadProgress
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progressCallback := func(progress DownloadProgress) {
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progressUpdates = append(progressUpdates, progress)
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}
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err = manager.DownloadWithResume(server.URL, destPath, progressCallback)
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if err != nil {
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t.Fatalf("Resume download failed: %v", err)
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}
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// Verify complete file content
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content, err := os.ReadFile(destPath)
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if err != nil {
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t.Fatalf("Failed to read resumed file: %v", err)
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}
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if string(content) != testContent {
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t.Errorf("Expected content %q, got %q", testContent, string(content))
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}
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}
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func TestValidateChecksum(t *testing.T) {
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// Create test content and calculate its checksum
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testContent := "Test content for checksum validation"
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hash := sha256.Sum256([]byte(testContent))
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expectedChecksum := hex.EncodeToString(hash[:])
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// Create temporary file
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tempDir, err := os.MkdirTemp("", "checksum_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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testFile := filepath.Join(tempDir, "test_checksum.txt")
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err = os.WriteFile(testFile, []byte(testContent), 0644)
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if err != nil {
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t.Fatal(err)
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}
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manager := NewManager()
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// Test valid checksum
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err = manager.ValidateChecksum(testFile, expectedChecksum)
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if err != nil {
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t.Errorf("Valid checksum validation failed: %v", err)
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}
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// Test invalid checksum
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invalidChecksum := "invalid_checksum_value"
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err = manager.ValidateChecksum(testFile, invalidChecksum)
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if err == nil {
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t.Error("Invalid checksum validation should have failed")
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}
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// Test empty checksum (should pass)
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err = manager.ValidateChecksum(testFile, "")
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if err != nil {
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t.Errorf("Empty checksum validation failed: %v", err)
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}
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// Test non-existent file
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err = manager.ValidateChecksum("non_existent_file.txt", expectedChecksum)
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if err == nil {
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t.Error("Non-existent file validation should have failed")
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}
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}
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func TestDownloadError(t *testing.T) {
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manager := NewManager()
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// Test invalid URL
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err := manager.Download("invalid-url", "/tmp/test", nil)
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if err == nil {
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t.Error("Download with invalid URL should have failed")
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}
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// Test server error
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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}))
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defer server.Close()
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tempDir, err := os.MkdirTemp("", "download_error_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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destPath := filepath.Join(tempDir, "error_test.txt")
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err = manager.Download(server.URL, destPath, nil)
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if err == nil {
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t.Error("Download with server error should have failed")
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}
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}
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func TestProgressCallback(t *testing.T) {
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testContent := strings.Repeat("A", 1024*100) // 100KB content for more progress updates
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
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w.WriteHeader(http.StatusOK)
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// Write content in smaller chunks to trigger multiple progress updates
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writer := w.(http.Flusher)
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for i := 0; i < len(testContent); i += 1024 {
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end := i + 1024
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if end > len(testContent) {
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end = len(testContent)
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}
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w.Write([]byte(testContent[i:end]))
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writer.Flush()
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time.Sleep(50 * time.Millisecond) // Longer delay to ensure progress updates
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}
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}))
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defer server.Close()
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tempDir, err := os.MkdirTemp("", "progress_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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manager := NewManager()
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destPath := filepath.Join(tempDir, "progress_test.txt")
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var progressUpdates []DownloadProgress
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progressCallback := func(progress DownloadProgress) {
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progressUpdates = append(progressUpdates, progress)
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// Validate progress values
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if progress.BytesDownloaded < 0 {
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t.Errorf("Negative bytes downloaded: %d", progress.BytesDownloaded)
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}
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if progress.Percentage < 0 || progress.Percentage > 100 {
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t.Errorf("Invalid percentage: %f", progress.Percentage)
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}
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if progress.Speed < 0 {
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t.Errorf("Negative speed: %d", progress.Speed)
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}
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}
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err = manager.Download(server.URL, destPath, progressCallback)
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if err != nil {
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t.Fatalf("Download failed: %v", err)
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}
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// Should have received at least one progress update (final one is guaranteed)
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if len(progressUpdates) < 1 {
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t.Errorf("Expected at least one progress update, got %d", len(progressUpdates))
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}
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// Final progress should be 100%
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finalProgress := progressUpdates[len(progressUpdates)-1]
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if finalProgress.Percentage != 100 {
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t.Errorf("Expected final percentage 100, got %f", finalProgress.Percentage)
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}
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// Verify that we got the correct total bytes
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if finalProgress.BytesDownloaded != int64(len(testContent)) {
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t.Errorf("Expected bytes downloaded %d, got %d", len(testContent), finalProgress.BytesDownloaded)
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}
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}
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func TestDownloadWithSources(t *testing.T) {
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testContent := "Test content for multi-source download"
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// Create primary server (Mirror酱 - higher priority)
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primaryServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(testContent))
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}))
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defer primaryServer.Close()
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// Create backup server (regular download site - lower priority)
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backupServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(testContent))
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}))
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defer backupServer.Close()
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tempDir, err := os.MkdirTemp("", "multi_source_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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manager := NewManager()
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destPath := filepath.Join(tempDir, "multi_source_test.txt")
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// Test with multiple sources - should use primary (lower priority number)
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sources := []DownloadSource{
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{URL: backupServer.URL, Priority: 2, Name: "Backup Server"},
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{URL: primaryServer.URL, Priority: 1, Name: "Mirror Server"}, // Higher priority
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}
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var progressUpdates []DownloadProgress
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progressCallback := func(progress DownloadProgress) {
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progressUpdates = append(progressUpdates, progress)
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}
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err = manager.DownloadWithSources(sources, destPath, progressCallback)
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if err != nil {
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t.Fatalf("Multi-source download failed: %v", err)
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}
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// Verify file content
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content, err := os.ReadFile(destPath)
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if err != nil {
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t.Fatalf("Failed to read downloaded file: %v", err)
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}
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if string(content) != testContent {
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t.Errorf("Expected content %q, got %q", testContent, string(content))
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}
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// Verify progress updates
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if len(progressUpdates) == 0 {
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t.Error("No progress updates received")
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}
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}
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func TestDownloadWithSourcesFallback(t *testing.T) {
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testContent := "Test content for fallback download"
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// Create failing primary server
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failingServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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}))
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defer failingServer.Close()
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// Create working backup server
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workingServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(testContent))
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}))
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defer workingServer.Close()
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tempDir, err := os.MkdirTemp("", "fallback_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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manager := NewManager()
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destPath := filepath.Join(tempDir, "fallback_test.txt")
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// Test fallback - primary fails, backup succeeds
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sources := []DownloadSource{
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{URL: failingServer.URL, Priority: 1, Name: "Failing Server"},
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{URL: workingServer.URL, Priority: 2, Name: "Working Server"},
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}
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err = manager.DownloadWithSources(sources, destPath, nil)
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if err != nil {
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t.Fatalf("Fallback download failed: %v", err)
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}
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// Verify file content
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content, err := os.ReadFile(destPath)
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if err != nil {
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t.Fatalf("Failed to read downloaded file: %v", err)
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}
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if string(content) != testContent {
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t.Errorf("Expected content %q, got %q", testContent, string(content))
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}
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}
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func TestDownloadWithSourcesAllFail(t *testing.T) {
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// Create two failing servers
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failingServer1 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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}))
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defer failingServer1.Close()
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failingServer2 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusNotFound)
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}))
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defer failingServer2.Close()
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tempDir, err := os.MkdirTemp("", "all_fail_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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manager := NewManager()
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destPath := filepath.Join(tempDir, "all_fail_test.txt")
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// Test when all sources fail
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sources := []DownloadSource{
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{URL: failingServer1.URL, Priority: 1, Name: "Failing Server 1"},
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{URL: failingServer2.URL, Priority: 2, Name: "Failing Server 2"},
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}
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err = manager.DownloadWithSources(sources, destPath, nil)
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if err == nil {
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t.Error("Expected download to fail when all sources fail")
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}
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// Verify error message contains information about all sources failing
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if !strings.Contains(err.Error(), "all download sources failed") {
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t.Errorf("Expected error message about all sources failing, got: %v", err)
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}
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}
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func TestDownloadSourcePriority(t *testing.T) {
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testContent1 := "Content from server 1"
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testContent2 := "Content from server 2"
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// Create two working servers with different content
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server1 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent1)))
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(testContent1))
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}))
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defer server1.Close()
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server2 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent2)))
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(testContent2))
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}))
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defer server2.Close()
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tempDir, err := os.MkdirTemp("", "priority_test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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manager := NewManager()
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destPath := filepath.Join(tempDir, "priority_test.txt")
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// Test priority ordering - server2 has higher priority (lower number)
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sources := []DownloadSource{
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{URL: server1.URL, Priority: 5, Name: "Server 1"},
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{URL: server2.URL, Priority: 1, Name: "Server 2"}, // Higher priority
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}
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err = manager.DownloadWithSources(sources, destPath, nil)
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if err != nil {
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t.Fatalf("Priority download failed: %v", err)
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}
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// Should have downloaded from server2 (higher priority)
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content, err := os.ReadFile(destPath)
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if err != nil {
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t.Fatalf("Failed to read downloaded file: %v", err)
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}
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if string(content) != testContent2 {
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t.Errorf("Expected content from server 2 %q, got %q", testContent2, string(content))
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}
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}
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|
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func TestSetTimeout(t *testing.T) {
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manager := NewManager()
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|
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// Test default timeout
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if manager.timeout != 30*time.Second {
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t.Errorf("Expected default timeout 30s, got %v", manager.timeout)
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}
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// Test setting custom timeout
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customTimeout := 60 * time.Second
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manager.SetTimeout(customTimeout)
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if manager.timeout != customTimeout {
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t.Errorf("Expected timeout %v, got %v", customTimeout, manager.timeout)
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}
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if manager.client.Timeout != customTimeout {
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t.Errorf("Expected client timeout %v, got %v", customTimeout, manager.client.Timeout)
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}
|
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}
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|
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func TestDownloadWithSourcesEmptyList(t *testing.T) {
|
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manager := NewManager()
|
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tempDir, err := os.MkdirTemp("", "empty_sources_test")
|
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if err != nil {
|
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t.Fatal(err)
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}
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defer os.RemoveAll(tempDir)
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|
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destPath := filepath.Join(tempDir, "empty_test.txt")
|
|
|
|
// Test with empty sources list
|
|
var sources []DownloadSource
|
|
err = manager.DownloadWithSources(sources, destPath, nil)
|
|
|
|
if err == nil {
|
|
t.Error("Expected error when no download sources provided")
|
|
}
|
|
|
|
if !strings.Contains(err.Error(), "no download sources provided") {
|
|
t.Errorf("Expected error about no sources, got: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestDownloadWithInvalidDestination(t *testing.T) {
|
|
testContent := "Test content"
|
|
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(testContent))
|
|
}))
|
|
defer server.Close()
|
|
|
|
manager := NewManager()
|
|
|
|
// Test with invalid destination path (directory that can't be created)
|
|
invalidPath := string([]byte{0}) + "/invalid/path/file.txt"
|
|
|
|
err := manager.Download(server.URL, invalidPath, nil)
|
|
if err == nil {
|
|
t.Error("Expected error with invalid destination path")
|
|
}
|
|
}
|
|
|
|
func TestDownloadWithTimeout(t *testing.T) {
|
|
// Create a server that delays response
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
time.Sleep(2 * time.Second) // Delay longer than timeout
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte("delayed content"))
|
|
}))
|
|
defer server.Close()
|
|
|
|
manager := NewManager()
|
|
manager.SetTimeout(500 * time.Millisecond) // Short timeout
|
|
|
|
tempDir, err := os.MkdirTemp("", "timeout_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
destPath := filepath.Join(tempDir, "timeout_test.txt")
|
|
|
|
err = manager.Download(server.URL, destPath, nil)
|
|
if err == nil {
|
|
t.Error("Expected timeout error")
|
|
}
|
|
|
|
// Check that it's a timeout-related error
|
|
if !strings.Contains(err.Error(), "timeout") && !strings.Contains(err.Error(), "context deadline exceeded") {
|
|
t.Errorf("Expected timeout error, got: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestDownloadWithLargeFile(t *testing.T) {
|
|
// Create large test content (1MB)
|
|
largeContent := strings.Repeat("A", 1024*1024)
|
|
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(largeContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
// Write in chunks to simulate real download
|
|
chunkSize := 8192
|
|
for i := 0; i < len(largeContent); i += chunkSize {
|
|
end := i + chunkSize
|
|
if end > len(largeContent) {
|
|
end = len(largeContent)
|
|
}
|
|
w.Write([]byte(largeContent[i:end]))
|
|
if f, ok := w.(http.Flusher); ok {
|
|
f.Flush()
|
|
}
|
|
time.Sleep(1 * time.Millisecond) // Small delay to allow progress updates
|
|
}
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "large_file_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "large_file.txt")
|
|
|
|
var progressUpdates []DownloadProgress
|
|
progressCallback := func(progress DownloadProgress) {
|
|
progressUpdates = append(progressUpdates, progress)
|
|
}
|
|
|
|
err = manager.Download(server.URL, destPath, progressCallback)
|
|
if err != nil {
|
|
t.Fatalf("Large file download failed: %v", err)
|
|
}
|
|
|
|
// Verify file size
|
|
stat, err := os.Stat(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to stat downloaded file: %v", err)
|
|
}
|
|
|
|
if stat.Size() != int64(len(largeContent)) {
|
|
t.Errorf("Expected file size %d, got %d", len(largeContent), stat.Size())
|
|
}
|
|
|
|
// Verify we got multiple progress updates
|
|
if len(progressUpdates) < 2 {
|
|
t.Errorf("Expected multiple progress updates for large file, got %d", len(progressUpdates))
|
|
}
|
|
|
|
// Verify final progress is 100%
|
|
if len(progressUpdates) > 0 {
|
|
finalProgress := progressUpdates[len(progressUpdates)-1]
|
|
if finalProgress.Percentage != 100 {
|
|
t.Errorf("Expected final percentage 100, got %f", finalProgress.Percentage)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDownloadResumeWithExistingFile(t *testing.T) {
|
|
fullContent := "This is the complete file content for resume testing"
|
|
partialContent := fullContent[:20] // First 20 bytes
|
|
remainingContent := fullContent[20:] // Remaining bytes
|
|
|
|
// Create test server that supports range requests
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
rangeHeader := r.Header.Get("Range")
|
|
|
|
if rangeHeader != "" {
|
|
// Handle range request
|
|
if strings.HasPrefix(rangeHeader, "bytes=20-") {
|
|
w.Header().Set("Content-Range", fmt.Sprintf("bytes 20-%d/%d", len(fullContent)-1, len(fullContent)))
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(remainingContent)))
|
|
w.WriteHeader(http.StatusPartialContent)
|
|
w.Write([]byte(remainingContent))
|
|
return
|
|
}
|
|
}
|
|
|
|
// Handle normal request (shouldn't happen in resume test)
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(fullContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(fullContent))
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "resume_existing_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
destPath := filepath.Join(tempDir, "resume_existing.txt")
|
|
|
|
// Create partial file first
|
|
err = os.WriteFile(destPath, []byte(partialContent), 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
manager := NewManager()
|
|
|
|
// Test resume download
|
|
err = manager.DownloadWithResume(server.URL, destPath, nil)
|
|
if err != nil {
|
|
t.Fatalf("Resume download failed: %v", err)
|
|
}
|
|
|
|
// Verify complete file content
|
|
content, err := os.ReadFile(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to read resumed file: %v", err)
|
|
}
|
|
|
|
if string(content) != fullContent {
|
|
t.Errorf("Expected complete content %q, got %q", fullContent, string(content))
|
|
}
|
|
}
|
|
|
|
func TestDownloadWithInvalidChecksum(t *testing.T) {
|
|
testContent := "Test content for checksum validation"
|
|
|
|
tempDir, err := os.MkdirTemp("", "checksum_invalid_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
testFile := filepath.Join(tempDir, "checksum_test.txt")
|
|
err = os.WriteFile(testFile, []byte(testContent), 0644)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
manager := NewManager()
|
|
|
|
// Test with completely wrong checksum
|
|
wrongChecksum := "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
|
|
err = manager.ValidateChecksum(testFile, wrongChecksum)
|
|
if err == nil {
|
|
t.Error("Expected checksum validation to fail with wrong checksum")
|
|
}
|
|
|
|
if !strings.Contains(err.Error(), "checksum mismatch") {
|
|
t.Errorf("Expected checksum mismatch error, got: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestDownloadSourcesSorting(t *testing.T) {
|
|
testContent := "Test content for source sorting"
|
|
|
|
// Create multiple servers with different priorities
|
|
server1 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
fullContent := testContent + " from server1"
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(fullContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(fullContent))
|
|
}))
|
|
defer server1.Close()
|
|
|
|
server2 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
fullContent := testContent + " from server2"
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(fullContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(fullContent))
|
|
}))
|
|
defer server2.Close()
|
|
|
|
server3 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
fullContent := testContent + " from server3"
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(fullContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(fullContent))
|
|
}))
|
|
defer server3.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "sorting_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "sorting_test.txt")
|
|
|
|
// Test with sources in random order - should use highest priority (lowest number)
|
|
sources := []DownloadSource{
|
|
{URL: server1.URL, Priority: 10, Name: "Server 1"}, // Lowest priority
|
|
{URL: server2.URL, Priority: 1, Name: "Server 2"}, // Highest priority
|
|
{URL: server3.URL, Priority: 5, Name: "Server 3"}, // Medium priority
|
|
}
|
|
|
|
err = manager.DownloadWithSources(sources, destPath, nil)
|
|
if err != nil {
|
|
t.Fatalf("Download with sources failed: %v", err)
|
|
}
|
|
|
|
// Should have downloaded from server2 (highest priority)
|
|
content, err := os.ReadFile(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to read downloaded file: %v", err)
|
|
}
|
|
|
|
if !strings.Contains(string(content), "from server2") {
|
|
t.Errorf("Expected content from server2, got: %s", string(content))
|
|
}
|
|
}
|
|
|
|
func TestDownloadProgressAccuracy(t *testing.T) {
|
|
// Create content with known size
|
|
contentSize := 50000 // 50KB
|
|
testContent := strings.Repeat("X", contentSize)
|
|
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
// Write in small chunks to get more progress updates
|
|
chunkSize := 1024
|
|
for i := 0; i < len(testContent); i += chunkSize {
|
|
end := i + chunkSize
|
|
if end > len(testContent) {
|
|
end = len(testContent)
|
|
}
|
|
w.Write([]byte(testContent[i:end]))
|
|
if f, ok := w.(http.Flusher); ok {
|
|
f.Flush()
|
|
}
|
|
time.Sleep(10 * time.Millisecond) // Small delay for progress updates
|
|
}
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "progress_accuracy_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "progress_test.txt")
|
|
|
|
var progressUpdates []DownloadProgress
|
|
progressCallback := func(progress DownloadProgress) {
|
|
progressUpdates = append(progressUpdates, progress)
|
|
|
|
// Validate progress values are reasonable
|
|
if progress.BytesDownloaded < 0 {
|
|
t.Errorf("Negative bytes downloaded: %d", progress.BytesDownloaded)
|
|
}
|
|
if progress.Percentage < 0 || progress.Percentage > 100 {
|
|
t.Errorf("Invalid percentage: %f", progress.Percentage)
|
|
}
|
|
if progress.TotalBytes > 0 && progress.BytesDownloaded > progress.TotalBytes {
|
|
t.Errorf("Downloaded bytes (%d) exceed total bytes (%d)", progress.BytesDownloaded, progress.TotalBytes)
|
|
}
|
|
if progress.Speed < 0 {
|
|
t.Errorf("Negative speed: %d", progress.Speed)
|
|
}
|
|
}
|
|
|
|
err = manager.Download(server.URL, destPath, progressCallback)
|
|
if err != nil {
|
|
t.Fatalf("Download failed: %v", err)
|
|
}
|
|
|
|
// Verify we got progress updates
|
|
if len(progressUpdates) == 0 {
|
|
t.Error("Expected at least one progress update")
|
|
}
|
|
|
|
// Verify progress is monotonically increasing
|
|
for i := 1; i < len(progressUpdates); i++ {
|
|
if progressUpdates[i].BytesDownloaded < progressUpdates[i-1].BytesDownloaded {
|
|
t.Errorf("Progress went backwards: %d -> %d",
|
|
progressUpdates[i-1].BytesDownloaded,
|
|
progressUpdates[i].BytesDownloaded)
|
|
}
|
|
}
|
|
|
|
// Verify final progress
|
|
if len(progressUpdates) > 0 {
|
|
final := progressUpdates[len(progressUpdates)-1]
|
|
if final.Percentage != 100 {
|
|
t.Errorf("Expected final percentage 100, got %f", final.Percentage)
|
|
}
|
|
if final.BytesDownloaded != int64(contentSize) {
|
|
t.Errorf("Expected final bytes %d, got %d", contentSize, final.BytesDownloaded)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestTestSpeeds(t *testing.T) {
|
|
testContent := strings.Repeat("A", 64*1024) // 64KB content for speed testing (smaller size)
|
|
|
|
// Create fast server
|
|
fastServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Connection", "close") // Ensure connection is closed
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(testContent))
|
|
}))
|
|
defer fastServer.Close()
|
|
|
|
// Create slow server
|
|
slowServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Connection", "close") // Ensure connection is closed
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
// Write slowly
|
|
chunkSize := 1024
|
|
for i := 0; i < len(testContent); i += chunkSize {
|
|
end := i + chunkSize
|
|
if end > len(testContent) {
|
|
end = len(testContent)
|
|
}
|
|
w.Write([]byte(testContent[i:end]))
|
|
if f, ok := w.(http.Flusher); ok {
|
|
f.Flush()
|
|
}
|
|
time.Sleep(10 * time.Millisecond) // Reduced delay
|
|
}
|
|
}))
|
|
defer slowServer.Close()
|
|
|
|
// Create failing server
|
|
failingServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Connection", "close") // Ensure connection is closed
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
}))
|
|
defer failingServer.Close()
|
|
|
|
manager := NewManager()
|
|
|
|
sources := []DownloadSource{
|
|
{URL: fastServer.URL, Priority: 1, Name: "Fast Server"},
|
|
{URL: slowServer.URL, Priority: 2, Name: "Slow Server"},
|
|
{URL: failingServer.URL, Priority: 3, Name: "Failing Server"},
|
|
}
|
|
|
|
testSize := int64(32 * 1024) // 32KB test size (smaller)
|
|
timeout := 5 * time.Second // Shorter timeout
|
|
|
|
results, err := manager.TestSpeeds(sources, testSize, timeout)
|
|
if err != nil {
|
|
t.Fatalf("Speed test failed: %v", err)
|
|
}
|
|
|
|
if len(results) != len(sources) {
|
|
t.Errorf("Expected %d results, got %d", len(sources), len(results))
|
|
}
|
|
|
|
// Results should be sorted by speed (descending)
|
|
for i := 1; i < len(results); i++ {
|
|
if results[i-1].Error == nil && results[i].Error == nil {
|
|
if results[i-1].Speed < results[i].Speed {
|
|
t.Errorf("Results not sorted by speed: %f < %f", results[i-1].Speed, results[i].Speed)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Fast server should have higher speed than slow server (if both succeed)
|
|
var fastResult, slowResult *SpeedTestResult
|
|
for _, result := range results {
|
|
if result.Source.Name == "Fast Server" {
|
|
fastResult = &result
|
|
} else if result.Source.Name == "Slow Server" {
|
|
slowResult = &result
|
|
}
|
|
}
|
|
|
|
if fastResult != nil && slowResult != nil {
|
|
if fastResult.Error == nil && slowResult.Error == nil {
|
|
if fastResult.Speed <= slowResult.Speed {
|
|
t.Logf("Fast server speed: %f MB/s, Slow server speed: %f MB/s",
|
|
fastResult.Speed, slowResult.Speed)
|
|
// Note: Due to the small test size, speeds might be similar, so we'll just log instead of failing
|
|
}
|
|
}
|
|
}
|
|
|
|
// Failing server should have an error
|
|
var failingResult *SpeedTestResult
|
|
for _, result := range results {
|
|
if result.Source.Name == "Failing Server" {
|
|
failingResult = &result
|
|
}
|
|
}
|
|
|
|
if failingResult != nil && failingResult.Error == nil {
|
|
t.Error("Failing server should have an error")
|
|
}
|
|
|
|
// Give servers time to close connections properly
|
|
time.Sleep(100 * time.Millisecond)
|
|
}
|
|
|
|
func TestDownloadMultiThreaded(t *testing.T) {
|
|
// Create large test content (1MB)
|
|
contentSize := 1024 * 1024
|
|
testContent := strings.Repeat("B", contentSize)
|
|
|
|
// Create server that supports range requests
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
rangeHeader := r.Header.Get("Range")
|
|
|
|
if rangeHeader != "" {
|
|
// Parse range header (simplified for testing)
|
|
var start, end int64
|
|
if n, err := fmt.Sscanf(rangeHeader, "bytes=%d-%d", &start, &end); n == 2 && err == nil {
|
|
if start >= 0 && end < int64(len(testContent)) && start <= end {
|
|
content := testContent[start:end+1]
|
|
w.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", start, end, len(testContent)))
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(content)))
|
|
w.WriteHeader(http.StatusPartialContent)
|
|
w.Write([]byte(content))
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// Handle HEAD request
|
|
if r.Method == "HEAD" {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Accept-Ranges", "bytes")
|
|
w.WriteHeader(http.StatusOK)
|
|
return
|
|
}
|
|
|
|
// Handle normal GET request
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Accept-Ranges", "bytes")
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(testContent))
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "multithread_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "multithread_test.txt")
|
|
|
|
config := MultiThreadConfig{
|
|
ThreadCount: 4,
|
|
ChunkSize: 0, // Use default chunk size
|
|
}
|
|
|
|
var progressUpdates []DownloadProgress
|
|
progressCallback := func(progress DownloadProgress) {
|
|
progressUpdates = append(progressUpdates, progress)
|
|
}
|
|
|
|
err = manager.DownloadMultiThreaded(server.URL, destPath, config, progressCallback)
|
|
if err != nil {
|
|
t.Fatalf("Multi-threaded download failed: %v", err)
|
|
}
|
|
|
|
// Verify file content
|
|
content, err := os.ReadFile(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to read downloaded file: %v", err)
|
|
}
|
|
|
|
if len(content) != contentSize {
|
|
t.Errorf("Expected content size %d, got %d", contentSize, len(content))
|
|
}
|
|
|
|
if string(content) != testContent {
|
|
t.Error("Downloaded content doesn't match original")
|
|
}
|
|
|
|
// Verify progress updates
|
|
if len(progressUpdates) == 0 {
|
|
t.Error("No progress updates received")
|
|
}
|
|
|
|
// Final progress should be 100%
|
|
if len(progressUpdates) > 0 {
|
|
finalProgress := progressUpdates[len(progressUpdates)-1]
|
|
if finalProgress.Percentage != 100 {
|
|
t.Errorf("Expected final percentage 100, got %f", finalProgress.Percentage)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDownloadMultiThreadedFallback(t *testing.T) {
|
|
testContent := "Test content for fallback"
|
|
|
|
// Create server that doesn't support range requests
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
if r.Method == "HEAD" {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
// Don't set Accept-Ranges header
|
|
w.WriteHeader(http.StatusOK)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(testContent))
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "multithread_fallback_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "fallback_test.txt")
|
|
|
|
config := MultiThreadConfig{
|
|
ThreadCount: 4,
|
|
}
|
|
|
|
// Should fallback to single-threaded download
|
|
err = manager.DownloadMultiThreaded(server.URL, destPath, config, nil)
|
|
if err != nil {
|
|
t.Fatalf("Fallback download failed: %v", err)
|
|
}
|
|
|
|
// Verify file content
|
|
content, err := os.ReadFile(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to read downloaded file: %v", err)
|
|
}
|
|
|
|
if string(content) != testContent {
|
|
t.Errorf("Expected content %q, got %q", testContent, string(content))
|
|
}
|
|
}
|
|
|
|
func TestDownloadMultiThreadedNoContentLength(t *testing.T) {
|
|
testContent := "Test content without content length"
|
|
|
|
// Create server that doesn't provide content length
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
if r.Method == "HEAD" {
|
|
// Don't set Content-Length header
|
|
w.WriteHeader(http.StatusOK)
|
|
return
|
|
}
|
|
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(testContent))
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "multithread_no_length_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "no_length_test.txt")
|
|
|
|
config := MultiThreadConfig{
|
|
ThreadCount: 4,
|
|
}
|
|
|
|
// Should fallback to single-threaded download
|
|
err = manager.DownloadMultiThreaded(server.URL, destPath, config, nil)
|
|
if err != nil {
|
|
t.Fatalf("No content length download failed: %v", err)
|
|
}
|
|
|
|
// Verify file content
|
|
content, err := os.ReadFile(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to read downloaded file: %v", err)
|
|
}
|
|
|
|
if string(content) != testContent {
|
|
t.Errorf("Expected content %q, got %q", testContent, string(content))
|
|
}
|
|
}
|
|
|
|
func TestSpeedTestTimeout(t *testing.T) {
|
|
// Create slow server that will timeout
|
|
slowServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Connection", "close") // Ensure connection is closed
|
|
time.Sleep(2 * time.Second) // Longer than timeout
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte("slow content"))
|
|
}))
|
|
defer slowServer.Close()
|
|
|
|
manager := NewManager()
|
|
|
|
sources := []DownloadSource{
|
|
{URL: slowServer.URL, Priority: 1, Name: "Slow Server"},
|
|
}
|
|
|
|
testSize := int64(1024)
|
|
timeout := 500 * time.Millisecond // Short timeout
|
|
|
|
results, err := manager.TestSpeeds(sources, testSize, timeout)
|
|
if err != nil {
|
|
t.Fatalf("Speed test failed: %v", err)
|
|
}
|
|
|
|
if len(results) != 1 {
|
|
t.Errorf("Expected 1 result, got %d", len(results))
|
|
}
|
|
|
|
// Should have timed out
|
|
if results[0].Error == nil {
|
|
t.Error("Expected timeout error")
|
|
}
|
|
|
|
// Give server time to close connections properly
|
|
time.Sleep(100 * time.Millisecond)
|
|
}
|
|
|
|
func TestDownloadMultiThreadedChunkMerging(t *testing.T) {
|
|
// Create content with distinct patterns for each chunk
|
|
chunk1 := strings.Repeat("1", 1024)
|
|
chunk2 := strings.Repeat("2", 1024)
|
|
chunk3 := strings.Repeat("3", 1024)
|
|
chunk4 := strings.Repeat("4", 1024)
|
|
testContent := chunk1 + chunk2 + chunk3 + chunk4
|
|
|
|
// Create server that supports range requests
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
rangeHeader := r.Header.Get("Range")
|
|
|
|
if rangeHeader != "" {
|
|
var start, end int64
|
|
if n, err := fmt.Sscanf(rangeHeader, "bytes=%d-%d", &start, &end); n == 2 && err == nil {
|
|
if start >= 0 && end < int64(len(testContent)) && start <= end {
|
|
content := testContent[start:end+1]
|
|
w.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", start, end, len(testContent)))
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(content)))
|
|
w.WriteHeader(http.StatusPartialContent)
|
|
w.Write([]byte(content))
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
if r.Method == "HEAD" {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Accept-Ranges", "bytes")
|
|
w.WriteHeader(http.StatusOK)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Accept-Ranges", "bytes")
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(testContent))
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "chunk_merge_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "chunk_merge_test.txt")
|
|
|
|
config := MultiThreadConfig{
|
|
ThreadCount: 4,
|
|
ChunkSize: 1024, // Each chunk is exactly 1024 bytes
|
|
}
|
|
|
|
err = manager.DownloadMultiThreaded(server.URL, destPath, config, nil)
|
|
if err != nil {
|
|
t.Fatalf("Multi-threaded download failed: %v", err)
|
|
}
|
|
|
|
// Verify file content is correctly merged
|
|
content, err := os.ReadFile(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to read downloaded file: %v", err)
|
|
}
|
|
|
|
if string(content) != testContent {
|
|
t.Error("Chunks were not merged correctly")
|
|
|
|
// Debug: check each chunk
|
|
if len(content) >= 1024 && string(content[0:1024]) != chunk1 {
|
|
t.Error("Chunk 1 incorrect")
|
|
}
|
|
if len(content) >= 2048 && string(content[1024:2048]) != chunk2 {
|
|
t.Error("Chunk 2 incorrect")
|
|
}
|
|
if len(content) >= 3072 && string(content[2048:3072]) != chunk3 {
|
|
t.Error("Chunk 3 incorrect")
|
|
}
|
|
if len(content) >= 4096 && string(content[3072:4096]) != chunk4 {
|
|
t.Error("Chunk 4 incorrect")
|
|
}
|
|
}
|
|
|
|
// Verify no temporary chunk files remain
|
|
for i := 0; i < 4; i++ {
|
|
chunkFile := fmt.Sprintf("%s.part%d", destPath, i)
|
|
if _, err := os.Stat(chunkFile); !os.IsNotExist(err) {
|
|
t.Errorf("Temporary chunk file %s should have been removed", chunkFile)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestSpeedTestEmptySources(t *testing.T) {
|
|
manager := NewManager()
|
|
|
|
var sources []DownloadSource
|
|
testSize := int64(1024)
|
|
timeout := 10 * time.Second
|
|
|
|
results, err := manager.TestSpeeds(sources, testSize, timeout)
|
|
if err == nil {
|
|
t.Error("Expected error for empty sources")
|
|
}
|
|
|
|
if results != nil {
|
|
t.Error("Expected nil results for empty sources")
|
|
}
|
|
|
|
if !strings.Contains(err.Error(), "no sources provided") {
|
|
t.Errorf("Expected 'no sources provided' error, got: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestDownloadMultiThreadedDefaultConfig(t *testing.T) {
|
|
testContent := strings.Repeat("C", 8192) // 8KB content
|
|
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
rangeHeader := r.Header.Get("Range")
|
|
|
|
if rangeHeader != "" {
|
|
var start, end int64
|
|
if n, err := fmt.Sscanf(rangeHeader, "bytes=%d-%d", &start, &end); n == 2 && err == nil {
|
|
if start >= 0 && end < int64(len(testContent)) && start <= end {
|
|
content := testContent[start:end+1]
|
|
w.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", start, end, len(testContent)))
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(content)))
|
|
w.WriteHeader(http.StatusPartialContent)
|
|
w.Write([]byte(content))
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
if r.Method == "HEAD" {
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Accept-Ranges", "bytes")
|
|
w.WriteHeader(http.StatusOK)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
|
|
w.Header().Set("Accept-Ranges", "bytes")
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Write([]byte(testContent))
|
|
}))
|
|
defer server.Close()
|
|
|
|
tempDir, err := os.MkdirTemp("", "default_config_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
manager := NewManager()
|
|
destPath := filepath.Join(tempDir, "default_config_test.txt")
|
|
|
|
// Test with zero thread count (should default to 4)
|
|
config := MultiThreadConfig{
|
|
ThreadCount: 0,
|
|
}
|
|
|
|
err = manager.DownloadMultiThreaded(server.URL, destPath, config, nil)
|
|
if err != nil {
|
|
t.Fatalf("Default config download failed: %v", err)
|
|
}
|
|
|
|
// Verify file content
|
|
content, err := os.ReadFile(destPath)
|
|
if err != nil {
|
|
t.Fatalf("Failed to read downloaded file: %v", err)
|
|
}
|
|
|
|
if string(content) != testContent {
|
|
t.Errorf("Expected content length %d, got %d", len(testContent), len(content))
|
|
}
|
|
} |