refactor: add file process pool constructor

Author: ybirader

main.go

@@ -44,6 +44,15 @@ type FileProcessPool struct {
 	numberOfWorkers int
 }
 
+func NewFileProcessPool(numberOfWorkers int, executor func(f File)) *FileProcessPool {
+	return &FileProcessPool{
+		tasks:           make(chan File),
+		executor:        executor,
+		wg:              new(sync.WaitGroup),
+		numberOfWorkers: numberOfWorkers,
+	}
+}
+
 func (f *FileProcessPool) Start() {
 	f.wg.Add(f.numberOfWorkers)
 	for i := 0; i < f.numberOfWorkers; i++ {

main_test.go

@@ -8,7 +8,6 @@ import (
 	"io"
 	"io/fs"
 	"os"
-	"sync"
 	"testing"
 	"time"
 
@@ -147,7 +146,7 @@ func TestFileProcessPool(t *testing.T) {
 			output.WriteString("hello, world!")
 		}
 
-		fileProcessPool := &FileProcessPool{tasks: make(chan File), executor: executor, wg: new(sync.WaitGroup), numberOfWorkers: 1}
+		fileProcessPool := NewFileProcessPool(1, executor)
 		fileProcessPool.Start()
 
 		info := getFileInfo(t, helloTxtFileFixture)