with_trace

Wrapper around 'trace' to untrace when finished

internal

Testing and documenting code that communicates with remote servers
can be painful. Dealing with authentication, server state,
and other complications can make testing seem too costly to
bother with. But it doesn't need to be that hard. This package enables one
to test all of the logic on the R sides of the API in your package without
requiring access to the remote service. Importantly, it provides three
contexts that mock the network connection in different ways, as well as
testing functions to assert that HTTP requests were---or were
not---made. It also allows one to safely record real API responses to use as
test fixtures. The ability to save responses and load them offline also
enables one to write vignettes and other dynamic documents that can be
distributed without access to a live server.

Neal Richardson

httptest

A Test Environment for HTTP Requests

Jonathan Keane

Maëlle Salmon

with_trace function

<dl><dt>x</dt>
<dd>Name of function to trace. See <code><a href="/link/base%3A%3Atrace()?package=httptest&version=4.2.2" data-mini-rdoc="httptest::base::trace()">base::trace()</a></code>.</dd>
<dt>where</dt>
<dd>where to look for the function to be traced.</dd>
<dt>print</dt>
<dd>Logical: print a message every time the traced function is hit?
Default is <code>FALSE</code>; note that in <code>trace</code>, the default is <code>TRUE</code>.</dd>
<dt>...</dt>
<dd>Additional arguments to pass to <code>trace</code>. At minimum, must include
either <code>tracer</code> or <code>exit</code>.</dd>
<dt>expr</dt>
<dd>Code to run inside the context</dd></dl>

Arguments

Wrapper around 'trace' to untrace when finished — with_trace

<dl>

<dt>x</dt>
<dd>Name of function to trace. See <code><a href='https://rdrr.io/r/base/trace.html'>base::trace()</a></code>.</dd>


<dt>where</dt>
<dd>where to look for the function to be traced.</dd>


<dt>print</dt>
<dd>Logical: print a message every time the traced function is hit?
Default is <code>FALSE</code>; note that in <code>trace</code>, the default is <code>TRUE</code>.</dd>


<dt>...</dt>
<dd>Additional arguments to pass to <code>trace</code>. At minimum, must include
either <code>tracer</code> or <code>exit</code>.</dd>


<dt>expr</dt>
<dd>Code to run inside the context</dd>

</dl>

with_trace: Wrapper around 'trace' to untrace when finished

Description

Usage

Value

Arguments