System.Security.SecureString.MakeReadOnly C# (CSharp) Method

		public void MakeReadOnly ()
		{
			read_only = true;
		}

        public void NewAzureAutomationCertificateByNameSuccessfull()
        {
            // Setup
            string resourceGroupName = "resourceGroup";
            string accountName = "automation";
            string certificateName = "certificate";
            string path = "testCert.pfx";
            string password = "******";
            string description = "desc";

            var secureString = new SecureString();
            Array.ForEach(password.ToCharArray(), secureString.AppendChar);
            secureString.MakeReadOnly();

            this.mockAutomationClient.Setup(
                f => f.CreateCertificate(resourceGroupName, accountName, certificateName, path, secureString, description, false));

            this.cmdlet.ResourceGroupName = resourceGroupName;
            this.cmdlet.AutomationAccountName = accountName;
            this.cmdlet.Name = certificateName;
            this.cmdlet.Description = description;
            this.cmdlet.Path = path;
            this.cmdlet.Password = secureString;
            this.cmdlet.ExecuteCmdlet();

            // Assert
            this.mockAutomationClient.Verify(f => f.CreateCertificate(resourceGroupName, accountName, certificateName, path, secureString, description, false), Times.Once());
        }