MyClassTest/MyClassesTest/MyClasses.runsettings

<?xml version='1.0' encoding='utf-8'?>
<RunSettings>
	<TestRunParameters>
		<Parameter name="GoodFileName"
			value="[AppPath]\TestFile.txt" />
    <Parameter name="ConnectionString" 
               value="Server=DESKTOP-GS6C5S7;Database=Sandbox;Integrated Security=Yes" />

  </TestRunParameters>
</RunSettings>