public void ParagraphTextSetter_ThrowsException_WhenParagraphWasRemoved()
{
IPresentation presentation = SCPresentation.Open(Properties.Resources._020, true);
IAutoShape autoShape = (IAutoShape)presentation.Slides[2].Shapes.First(sp => sp.Id == 8);
ITextBox textBox = autoShape.TextBox;
IParagraph paragraph = textBox.Paragraphs.First();
textBox.Text = "new box content";
// Act-Assert
paragraph.Invoking(p => p.Text = "new paragraph text")
.Should().Throw <ElementIsRemovedException>("because paragraph was being removed while changing box content.");
}