public async Task CheckIfExistsAsyncShouldReturnFalse()
{
var townRepo = new Repository <Town>(db);
var useFullCategory = new Repository <UseFullCategory>(db);
var companyRepo = new Repository <Company>(db);
var townUseFullCategoriesRepo = new Repository <TownUseFullCategory>(db);
var useFullCategoryService = new UseFullCategoryService(useFullCategory,
townRepo,
townUseFullCategoriesRepo, companyRepo);
var townService = new TownService(townRepo, townUseFullCategoriesRepo, useFullCategoryService, companyRepo);
await townService.CreateTownByNameAsync("Test");
var ifExists = await townService.CheckIfExistsAsync("Test1");
Assert.False(ifExists);
}