More null tests

Author: angularsen

CodeGen/Generators/UnitsNetGen/UnitTestBaseClassGenerator.cs

@@ -519,19 +519,22 @@ public void Equality_MatchesOnValueAndUnit({_quantity.ValueType} valueA, {_unitE
             // IEquatable
             Assert.Equal(a.Equals((object)b), expectEqual);
             Assert.Equal(b.Equals((object)a), expectEqual);
-
-            // ""The result of the expression is always 'false'...""
-            #pragma warning disable CS8073
-            Assert.False(a == null);
-            Assert.False(null == a);
-            #pragma warning restore CS8073
         }}
 
         [Fact]
-        public void Equals_Object_ReturnsFalseIfNull()
+        public void Equals_Null_ReturnsFalse()
         {{
             var a = {_quantity.Name}.Zero;
+
             Assert.False(a.Equals((object)null));
+
+            // ""The result of the expression is always 'false'...""
+            #pragma warning disable CS8073
+            Assert.False(a == null);
+            Assert.False(null == a);
+            Assert.True(a != null);
+            Assert.True(null != a);
+            #pragma warning restore CS8073
         }}
 
         [Fact]