public async Task GetDetailsByIdAsync_WithSupplementIdAndPage_ShouldReturnValidServiceModel()
{
// Arrange
FitStoreDbContext database = this.Database;
DatabaseHelper.SeedData(database);
ISubcategoryService subcategoryService = new SubcategoryService(database);
// Act
SubcategoryDetailsServiceModel result = await subcategoryService.GetDetailsByIdAsync(firstSubcategoryId, 1);
// Assert
result.Id.Should().Be(1);
result.Name.Should().Be("Subcategory 1");
result.CategoryId.Should().Be(1);
result.CategoryName.Should().Be("Category 1");
result.Supplements.Count().Should().Be(2);
}