Fix unit tests

Author: GillesTourreau

tests/Testing.Databases.SqlServer.SqlCmd.Tests/SqlCmdProcessTest.cs

@@ -19,7 +19,7 @@ public void WaitForExit_Disposed()
 
             process.Invoking(p => p.WaitForExit())
                 .Should().ThrowExactly<ObjectDisposedException>()
-                .WithMessage("Cannot access a disposed object.\r\nObject name: 'PosInformatique.Testing.Databases.SqlServer.SqlCmdProcess'.")
+                .WithMessage($"Cannot access a disposed object.{Environment.NewLine}Object name: 'PosInformatique.Testing.Databases.SqlServer.SqlCmdProcess'.")
                 .Which.ObjectName.Should().Be("PosInformatique.Testing.Databases.SqlServer.SqlCmdProcess");
         }
     }

tests/Testing.Databases.SqlServer.Tests/Comparer/SqlObjectDifferencesTest.cs

@@ -22,7 +22,7 @@ public void ToStringTest()
 
             var difference = new SqlObjectDifferences<SqlUserType>(source, target, default, properties);
 
-            difference.ToString().Should().Be("The source\r\n  * The prop1:\r\n      Source: 10\r\n      Target: 20\r\n  * The prop2:\r\n      Source: 30\r\n      Target: 40\r\n");
+            difference.ToString().Should().Be($"The source{Environment.NewLine}  * The prop1:{Environment.NewLine}      Source: 10{Environment.NewLine}      Target: 20{Environment.NewLine}  * The prop2:{Environment.NewLine}      Source: 30{Environment.NewLine}      Target: 40{Environment.NewLine}");
         }
     }
 }