public async Task GetProductBrandAsync_ShouldReturnAListOfProductBrand()
{
// Arrange
var sut = new BrandsController(_brandRepo);
// Act
var productBrand = await sut.GetProductBrand();
// Assert
var actionResult = Assert.IsType <ActionResult <IReadOnlyList <ProductBrand> > >(productBrand);
var productBrandList =
Assert.IsAssignableFrom <IReadOnlyList <ProductBrand> >(((OkObjectResult)actionResult.Result).Value);
Assert.Equal(_fixture.SeedEntries, productBrandList.Count);
}