I found some bug during trying to compare 2 text strings.
after investigation on issue I got the cause of problem that is occurred from differential new line character.
What is difference between new line string?
* \n (\u000A) for Unix
* \r (\u000D) for Mac
* \r\n (\u000D\u000A) for Windows
* System.Environment.NewLine depends on language as the escape characters ‘\r’ and ‘\n’ in Microsoft C# and C/C++.