fix tests

Author: ipax77

src/pax.XRechnung.NET.tests/SchematronValidationTests.cs

@@ -224,6 +224,10 @@ public async Task CanIdentifyXmlInvoiceValidationErrors()
     [TestMethod]
     public async Task CanValidateBaseDtoSchematronTest()
     {
+        if (!kositServerIsRunning)
+        {
+            Assert.Inconclusive("Kosit Validator is not running on localhost:8080.");
+        }
         var invoiceBaseDto = BaseDtoTests.GetInvoiceBaseDto();
         InvoiceMapper invoiceMapper = new();
         XmlInvoice xmlInvoice = invoiceMapper.ToXml(invoiceBaseDto);
@@ -236,6 +240,10 @@ public async Task CanValidateBaseDtoSchematronTest()
     [TestMethod]
     public async Task CanValidateBaseDtoSchematronWithRoundingTest()
     {
+        if (!kositServerIsRunning)
+        {
+            Assert.Inconclusive("Kosit Validator is not running on localhost:8080.");
+        }
         var invoiceBaseDto = BaseDtoTests.GetInvoiceBaseDto();
 
         var quantity = 1.17777;

src/pax.XRechnung.NET.tests/XmlInvoiceTests.cs

@@ -148,10 +148,7 @@ public void CanValidate()
         XmlDocument document = new();
         document.Schemas = XmlInvoiceWriter.GetSchemaSet();
 
-        // remove xml declaration
-        var lines = xmlText.Split(Environment.NewLine, StringSplitOptions.RemoveEmptyEntries);
-        var adjustedText = String.Join(Environment.NewLine, lines[1..]);
-        document.LoadXml(adjustedText);
+        document.LoadXml(xmlText);
 
         // Act
         bool validationErrorsFound = false;