assertive.files v0.0-2
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Assertions to Check Properties of Files
A set of predicates and assertions for checking the properties of
files and connections. 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.
Readme
assertive.files
A set of predicates and assertions for checking the files of variables, such as length, names and attributes. 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.files")
To install the development version, you first need the devtools package.
install.packages("devtools")
Then you can install the assertive.files package using
library(devtools)
install_bitbucket("richierocks/assertive.files")
Predicates
Functions for files:
is_dir
checks if a path corresponds to a directory.
is_empty_file
checks if a path corresponds to an empty file.
is_existing_file
checks if a path corresponds to an existing file.
is_readable_file
, is_writable_file
, and is_executable_file
check a file's permissions. (Though they are based upon base::file.access
, which sometimes gives unexpected results under Windows.)
is_library
checks if a path corresponds to a library that R knows about.
Functions for connections:
is_connection
checks if a variable is a connection.
is_bzfile_connection
, is_fifo_connection
, is_file_connection
, is_gzfile_connection
, is_pipe_connection
, is_socket_connection
, is_terminal_connection
, is_text_connection
, is_unz_connection
, and is_url_connection
check for these specific connection types.
is_stderr
, is_stdin
, and is_stdout
check for these standard connections.
is_incomplete_connection
, is_open_connection
, is_readable_connection
, and is_writable_connection
check for these properties of connections.
Assertions
Predicates that return a vector have two corresponding assertions. For example,
is_dir
has assert_all_are_dirs
and assert_any_are_dirs
.
Predicates returning a single logical value have one corresponding assertion.
For example, is_stdin
has assert_is_stdin
.
Functions in assertive.files
Name | Description | |
assert_is_bzfile_connection | Is the input a connection? | |
assert_all_are_executable_files | Is the file accessible? | |
assert_all_are_libraries | Is the directory a known R library? | |
assert_all_are_existing_files | Does the file exist? | |
as.character.file | Convert file connections to strings | |
assert_all_are_empty_files | Is a file too big or small? | |
assert_all_are_dirs | Is the path a directory? Checks to see if the input path is a directory. | |
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Details
Type | Package |
Date | 2016-05-10 |
URL | https://bitbucket.org/richierocks/assertive.files |
BugReports | https://bitbucket.org/richierocks/assertive.files/issues |
License | GPL (>= 3) |
LazyLoad | yes |
LazyData | yes |
Acknowledgments | Development of this package was partially funded by
the Proteomics Core at Weill Cornell Medical College in Qatar
|
Collate | 'imports.R' 'assert-is-connection.R' 'assert-is-file-size.R' 'assert-is-file.R' 'internal-connection.R' 'is-connection.R' 'is-file-size.R' 'is-file.R' |
RoxygenNote | 5.0.1 |
ByteCompile | true |
NeedsCompilation | no |
Packaged | 2016-05-10 07:49:25 UTC; rjc2003 |
Repository | CRAN |
Date/Publication | 2016-05-10 10:30:32 |
imports | assertive , assertive.base (>= 0.0-2) , assertive.numbers |
depends | base (>= 3.0.0) , R (>= 3.0.0) |
suggests | testthat |
Contributors | Richard Cotton |
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