Add test for cmd obj cloning

pkg/commands/oscommands/cmd_obj_test.go

@@ -1,7 +1,10 @@
 package oscommands
 
 import (
+	"os/exec"
 	"testing"
+
+	"github.com/jesseduffield/gocui"
 )
 
 func TestCmdObjToString(t *testing.T) {
@@ -31,3 +34,20 @@ func TestCmdObjToString(t *testing.T) {
 		}
 	}
 }
+
+func TestClone(t *testing.T) {
+	task := gocui.NewFakeTask()
+	cmdObj := &CmdObj{task: task, cmd: &exec.Cmd{}}
+	clone := cmdObj.Clone()
+	if clone == cmdObj {
+		t.Errorf("Clone should not return the same object")
+	}
+
+	if clone.GetTask() == nil {
+		t.Errorf("Clone task should not be nil")
+	}
+
+	if clone.GetTask() != task {
+		t.Errorf("Clone should have the same task")
+	}
+}