Assertions to Check Properties of Code

A set of predicates and assertions for checking the properties of code. This is mainly for use by other package developers who want to include run-time testing features in their own packages. End-users will usually want to use assertive directly.


Project Status: Active - The project has reached a stable, usable state and is being actively developed. Is the package on CRAN? Build Status AppVeyor Build Status Research software impact

A set of predicates and assertions for checking the properties of code. Most of the documentation is on the assertive page. End-users will usually want to use assertive directly.

Installation

To install the stable version, type:

install.packages("assertive.code")

To install the development version, you first need the devtools package.

install.packages("devtools")

Then you can install the assertive.code package using

library(devtools)
install_bitbucket("richierocks/assertive.code")

Predicates

is_binding_locked checks to see if a variable has had its binding locked (that is, has been made read-only).

is_debugged checks to see if a function has a debugging flag set on it.

is_error_free, wraps try, running the code and returning TRUE if no error was thrown. (The results of running the code are also returned in an attribute.)

is_existing checks to see if a variable exists in a given environment.

is_if_condition checks if a variable is suitable for use as an if condition (that is, it is TRUE or FALSE).

is_loaded checks whether or not a DLL (shared object) has been loaded.

is_valid_r_code checks whether a string is valid (parseable) R code.

is_valid_variable_name checks whether a string is a valid R variable name.

Assertions

Predicates that return a vector have two corresponding assertions. For example, is_valid_variable_name has assert_all_are_valid_variable_names and assert_any_are_valid_variable_names.

Predicates returning a single logical value have one corresponding assertion. For example, is_debugged has assert_is_debugged.

News

0.0-3 Drop dependency on devtools::with_envvar(). 0.0-1 Content extracted from assertive 0.3-0, and tidied.

Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.

install.packages("assertive.code")

0.0-3 by Richard Cotton, 6 months ago


https://bitbucket.org/richierocks/assertive.code


Report a bug at https://bitbucket.org/richierocks/assertive.code/issues


Browse source code at https://github.com/cran/assertive.code


Authors: Richard Cotton [aut, cre]


Documentation:   PDF Manual  


GPL (>= 3) license


Imports assertive.base, assertive.properties, assertive.types, methods

Suggests testthat


Imported by assertive.


See at CRAN