question: inject the mocked std-out printstream into the system class before each test concode_field_sep PrintStream realStdOut concode_elem_sep ByteArrayOutputStream stdOutBuffer concode_field_sep void testMessage concode_elem_sep void testMessageFromElves concode_elem_sep void testMessageFromOrcs concode_elem_sep void tearDown
target: void function ( ) { this . stdOutBuffer = new ByteArrayOutputStream ( ) ; System . setOut ( new PrintStream ( stdOutBuffer ) ) ; }