public async Task Count_ReturnsCorrectValue()
{
// Arrange
this.personRepositoryMock.Setup(repo => repo.Count()).ReturnsAsync(GetTestData().Count());
// Act
var result = await controller.GetCount();
// Assert
var okResult = result.Should().BeOfType <OkObjectResult>().Subject;
var peopleCount = okResult.Value.Should().BeAssignableTo <int>().Subject;
peopleCount.Should().Be(GetTestData().Count());
}