public async Task AddingTestEntityAsync()
{
var business = new Business(testContext.Object);
await business.AddCustomEntityAsync(new CustomEntity
{
Id = 1,
Name = "TestName"
});
testEntities.Verify(set => set.AddAsync(It.Is <CustomEntity>(e => e.Id == 1 && e.Name == "TestName"), It.IsAny <CancellationToken>()), Times.Once);
testContext.Verify(ctx => ctx.SaveChangesAsync(It.IsAny <CancellationToken>()), Times.Once);
}
