Control characters make output hard to read

[bungle]

Example:

return  require"luassert".are.equal("a\rb", "\r")
Expected objects to be equal.
Passed in:
'string) '
Expected:
b'tring) 'a
stack traceback:
    [C]: in function 'error'
    ...luarocks/2.4.2_5.1/share/lua/5.1/luassert/assert.lua:51: in function <...luarocks/2.4.2_5.1/share/lua/5.1/luassert/assert.lua:25>
    (tail call): ?
    [C]: ?

Expected results (or similar, just something else than writing on top of the output):

return  require"luassert".are.equal("a\rb", "\r")
Expected objects to be equal.
Passed in:
(string) '
'
Expected:
(string) 'a
b'
stack traceback:
    [C]: in function 'error'
    ...luarocks/2.4.2_5.1/share/lua/5.1/luassert/assert.lua:51: in function <...luarocks/2.4.2_5.1/share/lua/5.1/luassert/assert.lua:25>
    (tail call): ?
    [C]: ?

This seems to come from Lua interpreter:

> = "a\rb"
b

Actually from terminal.

[bungle]

One option, use Unicode symbols:

U+240A ␊ Symbol for Line Feed
U+240D ␍ Symbol for Carriage Return

[Tieske]

maybe try the binary string formatter? See example here: https://github.com/Olivine-Labs/luassert#customized-formatters