test: add test for convert command

cmd/convert_cbz_command_test.go

@@ -0,0 +1,101 @@
+package cmd
+
+import (
+	"github.com/belphemur/CBZOptimizer/converter"
+	"github.com/belphemur/CBZOptimizer/converter/constant"
+	"github.com/belphemur/CBZOptimizer/packer"
+	"github.com/spf13/cobra"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+// MockConverter is a mock implementation of the Converter interface
+type MockConverter struct{}
+
+func (m *MockConverter) Format() constant.ConversionFormat {
+	return constant.WebP
+}
+
+func (m *MockConverter) ConvertChapter(chapter *packer.Chapter, quality uint8, progress func(string)) (*packer.Chapter, error) {
+	// Simulate conversion by setting the IsConverted flag
+	chapter.IsConverted = true
+	chapter.ConvertedTime = time.Now()
+	return chapter, nil
+}
+
+func (m *MockConverter) PrepareConverter() error {
+	return nil
+}
+
+func TestConvertCbzCommand(t *testing.T) {
+	// Create a temporary directory for testing
+	tempDir, err := os.MkdirTemp("", "test_cbz")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer os.RemoveAll(tempDir) // Clean up the temp directory when done
+
+	// Locate the testdata directory
+	testdataDir := filepath.Join("../testdata")
+	if _, err := os.Stat(testdataDir); os.IsNotExist(err) {
+		t.Fatalf("testdata directory not found")
+	}
+
+	// Copy sample CBZ files from testdata to the temporary directory
+	err = filepath.Walk(testdataDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() && strings.HasSuffix(strings.ToLower(info.Name()), ".cbz") {
+			destPath := filepath.Join(tempDir, info.Name())
+			data, err := os.ReadFile(path)
+			if err != nil {
+				return err
+			}
+			return os.WriteFile(destPath, data, info.Mode())
+		}
+		return nil
+	})
+	if err != nil {
+		t.Fatalf("Failed to copy sample files: %v", err)
+	}
+
+	// Mock the converter.Get function
+	originalGet := converter.Get
+	converter.Get = func(format constant.ConversionFormat) (converter.Converter, error) {
+		return &MockConverter{}, nil
+	}
+	defer func() { converter.Get = originalGet }()
+
+	// Set up the command
+	cmd := &cobra.Command{
+		Use: "optimize",
+	}
+	cmd.Flags().Uint8P("quality", "q", 85, "Quality for conversion (0-100)")
+	cmd.Flags().IntP("parallelism", "n", 2, "Number of chapters to convert in parallel")
+	cmd.Flags().BoolP("override", "o", false, "Override the original CBZ files")
+
+	// Execute the command
+	err = ConvertCbzCommand(cmd, []string{tempDir})
+	if err != nil {
+		t.Fatalf("Command execution failed: %v", err)
+	}
+
+	// Verify the results
+	err = filepath.Walk(tempDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if !info.IsDir() && strings.HasSuffix(info.Name(), "_converted.cbz") {
+			t.Logf("Converted file found: %s", path)
+		}
+		return nil
+	})
+	if err != nil {
+		t.Fatalf("Error verifying converted files: %v", err)
+	}
+}

converter/converter.go

@@ -27,7 +27,9 @@ func Available() []constant.ConversionFormat {
 
 // Get returns a packer by name.
 // If the packer is not available, an error is returned.
-func Get(name constant.ConversionFormat) (Converter, error) {
+var Get = getConverter
+
+func getConverter(name constant.ConversionFormat) (Converter, error) {
 	if converter, ok := converters[name]; ok {
 		return converter, nil
 	}