watch

This is used to power the <code>auto_test()</code> and
<code>auto_test_package()</code> functions which are used to rerun tests
whenever source code changes.

internal

Software testing is important, but, in part because it is
frustrating and boring, many of us avoid it. 'testthat' is a testing
framework for R that is easy to learn and use, and integrates with
your existing 'workflow'.

Hadley Wickham

testthat

Unit Testing for R

Posit Software, PBC 

R Core team 

watch function

<dl><dt>path</dt>
<dd>character vector of paths to watch. Omit trailing backslash.</dd>
<dt>callback</dt>
<dd>function called every time a change occurs. It should
have three parameters: added, deleted, modified, and should return
<code>TRUE</code> to keep watching, or <code>FALSE</code> to stop.</dd>
<dt>pattern</dt>
<dd>file pattern passed to <code><a href="/link/dir()?package=testthat&version=3.3.0" data-mini-rdoc="testthat::dir()">dir()</a></code></dd>
<dt>hash</dt>
<dd>hashes are more accurate at detecting changes, but are slower
for large files. When <code>FALSE</code>, uses modification time stamps</dd></dl>

Arguments

Watch a directory for changes (additions, deletions &amp; modifications). — watch

<dl>

<dt>path</dt>
<dd>character vector of paths to watch. Omit trailing backslash.</dd>


<dt>callback</dt>
<dd>function called every time a change occurs. It should
have three parameters: added, deleted, modified, and should return
<code>TRUE</code> to keep watching, or <code>FALSE</code> to stop.</dd>


<dt>pattern</dt>
<dd>file pattern passed to <code><a href='https://rdrr.io/r/base/list.files.html'>dir()</a></code></dd>


<dt>hash</dt>
<dd>hashes are more accurate at detecting changes, but are slower
for large files. When <code>FALSE</code>, uses modification time stamps</dd>

</dl>

watch: Watch a directory for changes (additions, deletions & modifications).

Description

Usage

Arguments

Details