public void CloseCommandShouldSaveAnalysisType()
        {
            // Arrange
            _mockConfig.SetupGet(config => config.Config)
            .Returns(new Config());

            // Act
            var esterolesViewModel = new EsterolesViewModel(_mockDialog.Object, _mockConfig.Object,
                                                            _mockEsterolesLogic.Object, _mockFileSystem.Object);

            esterolesViewModel.Close();

            // Assert
            _mockConfig.Verify(c => c.Save(), Times.Once);
            Assert.Equal(nameof(EsterolesViewModel), _mockConfig.Object.Config.LastAnalysis);
        }