You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: row_test.go
    path of file: ./repos/maroto/pkg/components/row
    
    the code of the file until where you have to start completion: package row_test

import (
	"testing"

	"github.com/johnfercher/maroto/v2/internal/fixture"
	"github.com/johnfercher/maroto/v2/mocks"
	"github.com/johnfercher/maroto/v2/pkg/components/col"
	"github.com/johnfercher/maroto/v2/pkg/components/row"
	"github.com/johnfercher/maroto/v2/pkg/core/entity"
	"github.com/johnfercher/maroto/v2/pkg/test"
	"github.com/stretchr/testify/assert"
)

func TestNew(t *testing.T) {
	t.Run("when there is no cols", func(t *testing.T) {
		// Act
		r := row.New(10)

		// Assert
		test.New(t).Assert(r.GetStructure()).Equals("components/rows/new_empty_c
    
func TestNew(t *testing.T) {
	t.Run("when there is no cols", func(t *testing.T) {
		// Act
		r := row.New(10)

		// Assert
		test.New(t).Assert(r.GetStructure()).Equals("components/rows/new_empty_col.json")
	})
	t.Run("when has component, should retrieve components", func(t *testing.T) {
		// Act
		r := row.New(12).Add(col.New(12))

		// Assert
		test.New(t).Assert(r.GetStructure()).Equals("components/rows/new_filled_col.json")
	})
	t.Run("when has prop, should apply correctly", func(t *testing.T) {
		// Act
		prop := fixture.CellProp()
		r := row.New(12).WithStyle(&prop)

		// Assert
		test.New(t).Assert(r.GetStructure()).Equals("components/rows/new_col_with_prop.json")
	})
}