compare_proxy

Use this generic to override waldo's default comparison if you need to
override the defaults (typically because your object stores data in an
external pointer).
waldo comes with methods for a few common cases:<ul>
<li>data.table: the <code>.internal.selfref</code> and <code>index</code> attributes
are set to <code>NULL</code>. Both attributes are used for performance optimisation, and
don't affect the data.</li>
<li><code>xml2::xml_node</code>: the underlying XML data is stored in memory in C,
behind an external pointer, so the we best can do is to convert the
object to a string.</li>
<li>Classes from the <code>RProtoBuf</code> package: like XML objects, these store
data in memory in C++ and only expose string names to R. Fortunately,
these have well-understood string representations that we can use for
comparisons. See
<a href="https://protobuf.dev/reference/cpp/api-docs/google.protobuf.text_format/">https://protobuf.dev/reference/cpp/api-docs/google.protobuf.text_format/</a></li>
</ul>

Compare complex R objects and reveal the key differences.
Designed particularly for use in testing packages where being able to
quickly isolate key differences makes understanding test failures much
easier.

Hadley Wickham

waldo

Find Differences Between R Objects

Posit Software, PBC 

compare_proxy function

<dl><dt>x</dt>
<dd>An object.</dd>
<dt>path</dt>
<dd>Path</dd></dl>

Arguments

Use this generic to override waldo's default comparison if you need to
override the defaults (typically because your object stores data in an
external pointer).
waldo comes with methods for a few common cases:<ul>
<li>data.table: the <code>.internal.selfref</code> and <code>index</code> attributes
are set to <code>NULL</code>. Both attributes are used for performance optimisation, and
don't affect the data.</li>
<li><code>xml2::xml_node</code>: the underlying XML data is stored in memory in C,
behind an external pointer, so the we best can do is to convert the
object to a string.</li>
<li>Classes from the <code>RProtoBuf</code> package: like XML objects, these store
data in memory in C++ and only expose string names to R. Fortunately,
these have well-understood string representations that we can use for
comparisons. See
<a href='https://protobuf.dev/reference/cpp/api-docs/google.protobuf.text_format/'>https://protobuf.dev/reference/cpp/api-docs/google.protobuf.text_format/</a></li>
</ul>

Proxy for waldo comparison — compare_proxy

<dl>

<dt>x</dt>
<dd>An object.</dd>


<dt>path</dt>
<dd>Path</dd>

</dl>

compare_proxy: Proxy for waldo comparison

Description

Usage

Value

Arguments