computeArgumentsCombination {wyz.code.metaTesting}

Compute Function Arguments Combination

Description

Computes a priori legal combinations of function arguments, according to the function definition (see formals).

Usage

computeArgumentsCombination(fun_f_1)

Arguments

fun_f_1

an R function

Details

Computes an a priori legal list of argument signatures for the provided function.

Allows to foresee test complexity for a function, as this is in narrow relationship, with the number of various call signatures that should be tested. The number of signatures is in itself a good indicator of complexity.

Value

A list containing following named list

names	names of mandatory arguments, ellipsis (...) arguments and of default arguments.
number	The number provides the number of replacements per argument.
signatures	The signatures are the resulting textual argument combinations.

Author(s)

Fabien Gelineau <[e-mail]>

Maintainer: Fabien Gelineau <[e-mail]>

See Also

Refer to testFunction

Examples

# typical example
computeArgumentsCombination(append)

computeArgumentsCombination(kronecker)