protected void assertContentsMatches(byte[] expected, DocumentEntry doc)
        {
            NDocumentInputStream inp = new NDocumentInputStream(doc);
            byte[] contents = new byte[doc.Size];
            Assert.AreEqual(doc.Size, inp.Read(contents));
            inp.Close();

            if (expected != null)
                Assert.That(expected, new EqualConstraint(contents));
        }
        public void TestAvailable()
        {
            DocumentInputStream ostream = new DocumentInputStream(_workbook_o);
            DocumentInputStream nstream = new NDocumentInputStream(_workbook_n);

            Assert.AreEqual(_workbook_size, ostream.Available());
            Assert.AreEqual(_workbook_size, nstream.Available());
            ostream.Close();
            nstream.Close();

            try
            {
                ostream.Available();
                Assert.Fail("Should have caught IOException");
            }
            catch (InvalidOperationException)
            {
                // as expected
            }
            try
            {
                nstream.Available();
                Assert.Fail("Should have caught IOException");
            }
            catch (InvalidOperationException)
            {
                // as expected
            }
        }
        public void TestConstructor()
        {
            DocumentInputStream ostream = new DocumentInputStream(_workbook_o);
            DocumentInputStream nstream = new NDocumentInputStream(_workbook_n);

            Assert.AreEqual(_workbook_size, _workbook_o.Size);
            Assert.AreEqual(_workbook_size, _workbook_n.Size);
            Assert.AreEqual(_workbook_size, ostream.Available());
            Assert.AreEqual(_workbook_size, nstream.Available());
        }