updates

Author: MarcoRossignoli

test/coverlet.collector.tests/CoverletSettingsParserTests.cs

@@ -78,5 +78,32 @@ private void CreateCoverletNodes(XmlDocument doc, XmlElement configElement, stri
             node.InnerText = nodeValue;
             configElement.AppendChild(node);
         }
+
+        [Fact]
+        public void ParseShouldSkipXunitModulesIfEmptyExclude()
+        {
+            var testModules = new List<string> { "abc.dll" };
+
+            CoverletSettings coverletSettings = _coverletSettingsParser.Parse(null, testModules);
+
+            Assert.Equal("[coverlet.*]*", coverletSettings.ExcludeFilters[0]);
+            Assert.Equal("[xunit*]*", coverletSettings.ExcludeFilters[1]);
+        }
+
+        [Fact]
+        public void ParseShouldNotSkipXunitModulesIfNotEmptyExclude()
+        {
+            var testModules = new List<string> { "abc.dll" };
+            var doc = new XmlDocument();
+            var configElement = doc.CreateElement("Configuration");
+            this.CreateCoverletNodes(doc, configElement, CoverletConstants.ExcludeFiltersElementName, "[coverlet.*.tests?]*");
+
+            CoverletSettings coverletSettings = _coverletSettingsParser.Parse(configElement, testModules);
+
+            Assert.Equal("[coverlet.*]*", coverletSettings.ExcludeFilters[0]);
+            Assert.Equal("[coverlet.*.tests?]*", coverletSettings.ExcludeFilters[1]);
+            Assert.Equal(2, coverletSettings.ExcludeFilters.Length);
+            Assert.DoesNotContain("[xunit*]*", coverletSettings.ExcludeFilters);
+        }
     }
 }