chore: seperate large files

internal/format/srt/formatter_test.go

@@ -0,0 +1,70 @@
+package srt
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestFormat(t *testing.T) {
+	// Create a temporary test file with out-of-order numbers
+	content := `2
+00:00:05,000 --> 00:00:08,000
+This is the second line.
+
+1
+00:00:01,000 --> 00:00:04,000
+This is the first line.
+
+3
+00:00:09,500 --> 00:00:12,800
+This is the third line.
+`
+	tempDir := t.TempDir()
+	testFile := filepath.Join(tempDir, "test.srt")
+	if err := os.WriteFile(testFile, []byte(content), 0644); err != nil {
+		t.Fatalf("Failed to create test file: %v", err)
+	}
+
+	// Format the file
+	err := Format(testFile)
+	if err != nil {
+		t.Fatalf("Format failed: %v", err)
+	}
+
+	// Read the formatted file
+	formatted, err := os.ReadFile(testFile)
+	if err != nil {
+		t.Fatalf("Failed to read formatted file: %v", err)
+	}
+
+	// The Format function should standardize the numbering
+	lines := strings.Split(string(formatted), "\n")
+
+	// The numbers should be sequential starting from 1
+	if !strings.HasPrefix(lines[0], "1") {
+		t.Errorf("First entry should be renumbered to 1, got '%s'", lines[0])
+	}
+
+	// Find the second entry (after the first entry's content and a blank line)
+	var secondEntryIndex int
+	for i := 1; i < len(lines); i++ {
+		if lines[i] == "" && i+1 < len(lines) && lines[i+1] != "" {
+			secondEntryIndex = i + 1
+			break
+		}
+	}
+
+	if secondEntryIndex > 0 && !strings.HasPrefix(lines[secondEntryIndex], "2") {
+		t.Errorf("Second entry should be renumbered to 2, got '%s'", lines[secondEntryIndex])
+	}
+}
+
+func TestFormat_FileError(t *testing.T) {
+	// Test with non-existent file
+	err := Format("/nonexistent/file.srt")
+	if err == nil {
+		t.Error("Expected error when formatting non-existent file, got nil")
+	}
+}