public async Task AddSampleAsync_ShouldReturnStatusCode400_WhenInvalid()
{
//arrange
int id = -1;
Sample sample = null;
_projectBLMock.Setup(i => i.AddSampleAsync(sample, id)).Throws(new Exception());
SampleController sampleController = new SampleController(_projectBLMock.Object);
//act
var result = await sampleController.AddSampleAsync();
//assert
Assert.IsType <StatusCodeResult>(result);
Assert.Equal(400, ((StatusCodeResult)result).StatusCode);
}
