public void TestFieldRuns()
{
XWPFDocument doc = XWPFTestDataSamples.OpenSampleDocument("FldSimple.docx");
IList <XWPFParagraph> ps = doc.Paragraphs;
Assert.AreEqual(1, ps.Count);
XWPFParagraph p = ps[0];
Assert.AreEqual(1, p.Runs.Count);
Assert.AreEqual(1, p.IRuns.Count);
XWPFRun r = p.Runs[0];
Assert.AreEqual(typeof(XWPFFieldRun), r.GetType());
XWPFFieldRun fr = (XWPFFieldRun)r;
Assert.AreEqual(" FILENAME \\* MERGEFORMAT ", fr.FieldInstruction);
Assert.AreEqual("FldSimple.docx", fr.Text);
Assert.AreEqual("FldSimple.docx", p.Text);
}