The shows functions return a function that prepends the output String to an existing String. This allows constant-time concatenation of results using function composition.
equivalent to showsPrec with a precedence of 0.
utility function converting a String to a show function that simply prepends the string unchanged.
Converts a possibly-negative Real value to a string.
Display the internal structure of a lazy Text.
Accumulates persistent lines (dropping progess lines) for return by runTestText. The accumulated lines are represented by a ShowS (String -> String) function whose first argument is the string to be appended to the accumulated report lines.