refactoring process management: no more orphan processes and quicker chrome startup

internal/pkg/xexec/xexec_test.go

@@ -5,6 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/thecodingmachine/gotenberg/internal/pkg/xcontext"
 	"github.com/thecodingmachine/gotenberg/test"
 )
 
@@ -37,3 +38,16 @@ func TestCommandContext(t *testing.T) {
 	LogBeforeExecute(logger, cmd)
 	assert.Nil(t, err)
 }
+
+func TestRun(t *testing.T) {
+	logger := test.DebugLogger()
+	// should run without issue.
+	err := Run(context.Background(), logger, "echo", "Hello", "World")
+	assert.Nil(t, err)
+	// should not be OK as context.Context
+	// should timeout.
+	ctx, cancel := xcontext.WithTimeout(logger, 0)
+	defer cancel()
+	err = Run(ctx, logger, "echo", "Hello", "World")
+	assert.NotNil(t, err)
+}