Easy pre and post assertions.

Documentation for package ‘assertthat’ version 0.1

%has_args%	Check a function has specified arguments
%has_attr%	Has attribute or name?
%has_name%	Has attribute or name?
are_equal	Are two objects equal?
assertions-file	Useful test related to files
assert_that	Assert that certain conditions are true.
has_args	Check a function has specified arguments
has_attr	Has attribute or name?
has_extension	Useful test related to files
has_name	Has attribute or name?
is.count	Assert input is a scalar.
is.date	Missing is functions.
is.dir	Useful test related to files
is.error	Missing is functions.
is.flag	Assert input is a scalar.
is.number	Assert input is a scalar.
is.readable	Useful test related to files
is.scalar	Assert input is a scalar.
is.string	Assert input is a scalar.
is.time	Missing is functions.
is.writeable	Useful test related to files
noNA	Does object contain any missing values?
not_empty	Check an object doesn't have any empty dimensions
on_failure	Custom failure messages for assertions.
on_failure<-	Custom failure messages for assertions.
see_if	Assert that certain conditions are true.
validate_that	Validate that certain conditions are true.