&gt; passes
(matcha/run-match (matcha/is-in? #&quot;\d+&quot;) &quot;a&quot;) ; =&gt; fails</pre></div></div><div class="public anchor" id="var-run-match"><h3>run-match</h3><div class="usage"><code>(run-match matcher a)</code></div><div class="doc"><pre class="plaintext">runs a matcher, given a value to match against.
Returns a map:

if the matcher matches the value:
{:pass? true}

if the matcher fails:
{:pass? false
 :matcher matcher
 :expected (a string)
 :was (a string)}

the results can be made human re