Fixed tests + corrected incorrect test

Author: Lanayx

XmlSchemaClassGenerator.Tests/DateOnlyTimeOnlyTests.cs

@@ -160,7 +160,7 @@ public void WhenUseDateOnlyIsFalse_AndDateTimeWithTimeZoneIsTrue_DateTimeOffsetI
         var code = string.Join(Environment.NewLine, generatedType);
 
         Assert.Contains("public System.DateTimeOffset SomeTime", code);
-        Assert.Contains("DataType=\"time\"", code);
+        Assert.DoesNotContain("DataType=\"time\"", code);
     }
     [Fact]
     public void WhenUseDateOnlyIsFalse_AndDateTimeWithTimeZoneIsTrue_DateTimeOffsetIsGeneratedForDate()
@@ -188,6 +188,6 @@ public void WhenUseDateOnlyIsFalse_AndDateTimeWithTimeZoneIsTrue_DateTimeOffsetI
         var code = string.Join(Environment.NewLine, generatedType);
 
         Assert.Contains("public System.DateTimeOffset SomeDate", code);
-        Assert.Contains("DataType=\"date\"", code);
+        Assert.DoesNotContain("DataType=\"date\"", code);
     }
 }

XmlSchemaClassGenerator.Tests/DateTimeTypeTests.cs

@@ -104,7 +104,7 @@ public void WhenDateTimeOffsetIsNotUsed_DataTypePropertyIsPresent()
     }
 
     [Fact]
-    public void WhenDateTimeOffsetIsNotUsed_DataTypePropertyIsPresent2()
+    public void WhenDateTimeOffsetIsUsed_DataTypePropertyIsNotPresent()
     {
         var xsd = @$"<?xml version=""1.0"" encoding=""UTF-8""?>
 <xs:schema elementFormDefault=""qualified"" xmlns:xs=""http://www.w3.org/2001/XMLSchema"">
@@ -125,7 +125,7 @@ public void WhenDateTimeOffsetIsNotUsed_DataTypePropertyIsPresent2()
                 DateTimeWithTimeZone = true
             });
 
-        var expectedXmlSerializationAttribute = "[System.Xml.Serialization.XmlElementAttribute(\"someDate\", DataType=\"date\")]";
+        var expectedXmlSerializationAttribute = "[System.Xml.Serialization.XmlElementAttribute(\"someDate\")]";
         var generatedProperty = generatedType.First();
 
         Assert.Contains(expectedXmlSerializationAttribute, generatedProperty);

XmlSchemaClassGenerator/CodeUtilities.cs

@@ -78,8 +78,8 @@ public static string ToBackingField(this string propertyName, string privateFiel
         public static bool? IsDataTypeAttributeAllowed(this XmlSchemaDatatype type, GeneratorConfiguration configuration) => type.TypeCode switch
         {
             XmlTypeCode.AnyAtomicType => false,// union
-            XmlTypeCode.DateTime or XmlTypeCode.Time => !configuration.DateTimeWithTimeZone,
-            XmlTypeCode.Date or XmlTypeCode.Base64Binary or XmlTypeCode.HexBinary => true,
+            XmlTypeCode.DateTime or XmlTypeCode.Date or XmlTypeCode.Time => !configuration.DateTimeWithTimeZone,
+            XmlTypeCode.Base64Binary or XmlTypeCode.HexBinary => true,
             _ => false,
         };