Add feature to remove torrent tracker URLs from torrents for private tracker downloads (#99)

- Remove trackers from torrenst/magnet URI

---------

Co-authored-by: Mukhtar Akere <akeremukhtar10@gmail.com>

internal/testutil/testutil.go

@@ -0,0 +1,45 @@
+package testutil
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// GetTestDataPath returns the path to the testdata directory in the project root
+func GetTestDataPath() string {
+	return filepath.Join("..", "..", "testdata")
+}
+
+// GetTestDataFilePath returns the path to a specific file in the testdata directory
+func GetTestDataFilePath(filename string) string {
+	return filepath.Join(GetTestDataPath(), filename)
+}
+
+// GetTestTorrentPath returns the path to the Ubuntu test torrent file
+func GetTestTorrentPath() string {
+	return GetTestDataFilePath("ubuntu-25.04-desktop-amd64.iso.torrent")
+}
+
+// GetTestMagnetPath returns the path to the Ubuntu test magnet file
+func GetTestMagnetPath() string {
+	return GetTestDataFilePath("ubuntu-25.04-desktop-amd64.iso.magnet")
+}
+
+// GetTestDataBytes reads and returns the raw bytes of a test data file
+func GetTestDataBytes(filename string) ([]byte, error) {
+	filePath := GetTestDataFilePath(filename)
+	return os.ReadFile(filePath)
+}
+
+// GetTestDataContent reads and returns the content of a test data file
+func GetTestDataContent(filename string) (string, error) {
+
+	content, err := GetTestDataBytes(filename)
+	return strings.TrimSpace(string(content)), err
+}
+
+// GetTestMagnetContent reads and returns the content of the Ubuntu test magnet file
+func GetTestMagnetContent() (string, error) {
+	return GetTestDataContent("ubuntu-25.04-desktop-amd64.iso.magnet")
+}