BloomTests.Book.TranslationGroupManagerTests.PrepareElementsOnPage_FromShell_MakesVernacularAndNationalEmpty C# (CSharp) Method

        public void PrepareElementsOnPage_FromShell_MakesVernacularAndNationalEmpty()
        {
            var contents = @"<div class='bloom-page numberedPage A5Portrait bloom-monolingual'
                            id='f4a22289-1755-4b79-afc1-5d20eaa892fe'>
            <div class='marginBox'>
              <div class='bloom-imageContainer'>
            <img alt='' src='test.png' height='20' width='20'/>
              </div>
              <div class='bloom-translationGroup normal-style'>
            <div style='' class='bloom-editable' contenteditable='true'
            lang='en'>The Mother said, Nurse!
            The Nurse answered.</div>
            <div style='' class='bloom-editable' contenteditable='true'
            lang='tpi'>Mama i tok: Sista.
            Sista i tok: Bai mi stori long yu.</div>
              </div>
            </div></div>";
            var dom = new XmlDocument();
            dom.LoadXml(contents);

            TranslationGroupManager.PrepareElementsInPageOrDocument((XmlElement)dom.SafeSelectNodes("//div[contains(@class,'bloom-page')]")[0], _collectionSettings.Object);

            AssertThatXmlIn.Dom(dom).HasSpecifiedNumberOfMatchesForXpath("//div/div[contains(@class, 'bloom-editable') and @contenteditable='true' ]", 5);
            AssertThatXmlIn.Dom(dom).HasSpecifiedNumberOfMatchesForXpath("//div[@lang='xyz']", 1);
            AssertThatXmlIn.Dom(dom).HasSpecifiedNumberOfMatchesForXpath("//div[@lang='fr']", 1);
            AssertThatXmlIn.Dom(dom).HasSpecifiedNumberOfMatchesForXpath("//div[@lang='es']", 1);
            AssertThatXmlIn.Dom(dom).HasSpecifiedNumberOfMatchesForXpath("//div[@lang='en' and contains(., 'The Mother')]", 1);
            AssertThatXmlIn.Dom(dom).HasSpecifiedNumberOfMatchesForXpath("//div[@lang='tpi' and contains(., 'Mama i tok')]", 1);
            AssertThatXmlIn.Dom(dom).HasNoMatchForXpath("//div[@lang='xyz' and contains(., 'The Mother')]");
            AssertThatXmlIn.Dom(dom).HasNoMatchForXpath("//div[@lang='xyz' and contains(., 'Mama i tok')]");
            AssertThatXmlIn.Dom(dom).HasNoMatchForXpath("//div[@lang='fr' and contains(., 'The Mother')]");
            AssertThatXmlIn.Dom(dom).HasNoMatchForXpath("//div[@lang='fr' and contains(., 'Mama i tok')]");
        }