public void ApplyJsonSnippet_NestedClass()
        {
            // Arrange
            var settings        = new MockPartProfile();
            var settingsBuilder = new SettingsBuilder <MockPartProfile>(settings, new NullLogger());

            settings.NestedClass.PropertyA = 3;
            settings.NestedClass.PropertyB = 4;

            // Act
            settingsBuilder.ApplyJSONSnippet("NestedClass.PropertyB:5");

            // Assert
            Assert.AreEqual(3, settingsBuilder.Settings.NestedClass.PropertyA);
            Assert.AreEqual(5, settingsBuilder.Settings.NestedClass.PropertyB);
        }