Completed test 43 test_default_value_with_block
Completed test 44 test_double_quoted_strings_are_strings
Completed test 45 test_single_quoted_strings_are_also_strings
Completed test 46 test_use_single_quotes_to_create_string_with_double_quote
Completed test 47 test_use_double_quotes_to_create_strings_with_single_quotes
Completed test 48 test_use_backslash_for_those_hard_cases
Completed test 49 test_use_flexible_quoting_to_handle_really_hard_cases
Completed test 50 test_flexible_quotes_can_handle_multiple_lines
Completed test 51 test_here_documents_can_also_handle_multiple_lines as well as note
Completed test 52 test_plus_will_concatenate_two_strings