feat(baseline): can ignore deprecations with regex

src/Runner/Baseline/Issue.php

@@ -13,6 +13,7 @@
 use function assert;
 use function file;
 use function is_file;
+use function preg_match;
 use function sha1;
 use PHPUnit\Runner\FileDoesNotExistException;
 
@@ -112,7 +113,7 @@ public function equals(self $other): bool
         return $this->file() === $other->file() &&
                $this->line() === $other->line() &&
                $this->hash() === $other->hash() &&
-               $this->description() === $other->description();
+               ($this->description() === $other->description() || preg_match('{' . $this->description() . '}', $other->description()) > 0);
     }
 
     /**

tests/end-to-end/_files/baseline/use-baseline-with-regex/baseline.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<files version="1">
+ <file path="tests/UseBaselineTest.php">
+  <line number="20" hash="bee8cf8f19af95867fd8c6092e6813ae06cc12a9">
+   <issue><![CDATA[deprecation \d{3}]]></issue>
+  </line>
+ </file>
+</files>

tests/end-to-end/_files/baseline/use-baseline-with-regex/phpunit.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="../../../../../phpunit.xsd"
+         cacheResult="false"
+>
+    <testsuites>
+        <testsuite name="default">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <source baseline="baseline.xml">
+    </source>
+</phpunit>

tests/end-to-end/_files/baseline/use-baseline-with-regex/tests/UseBaselineTest.php

@@ -0,0 +1,24 @@
+<?php
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\TestFixture\Baseline;
+
+use const E_USER_DEPRECATED;
+use function trigger_error;
+use PHPUnit\Framework\TestCase;
+
+final class UseBaselineTest extends TestCase
+{
+    public function testOne(): void
+    {
+        trigger_error('deprecation 123', E_USER_DEPRECATED);
+
+        $this->assertTrue(true);
+    }
+}

tests/end-to-end/baseline/use-baseline-with-regex.phpt

@@ -0,0 +1,24 @@
+--TEST--
+phpunit --configuration ../_files/baseline/use-baseline-with-regex/phpunit.xml
+--FILE--
+<?php declare(strict_types=1);
+$_SERVER['argv'][] = '--do-not-cache-result';
+$_SERVER['argv'][] = '--configuration';
+$_SERVER['argv'][] = __DIR__ . '/../_files/baseline/use-baseline-with-regex/phpunit.xml';
+
+require_once __DIR__ . '/../../bootstrap.php';
+
+(new PHPUnit\TextUI\Application)->run($_SERVER['argv']);
+--EXPECTF--
+PHPUnit %s by Sebastian Bergmann and contributors.
+
+Runtime: %s
+Configuration: %s
+
+.                                                                   1 / 1 (100%)
+
+Time: %s, Memory: %s
+
+OK (1 test, 1 assertion)
+
+1 issue was ignored by baseline.

tests/unit/Runner/Baseline/IssueTest.php

@@ -50,6 +50,11 @@ public function testIsComparable(): void
         $this->assertFalse($this->issue()->equals($this->anotherIssue()));
     }
 
+    public function testIsComparableWithRegex(): void
+    {
+        $this->assertTrue($this->issueWithRegex()->equals($this->issue()));
+    }
+
     public function testCannotBeCreatedForFileThatDoesNotExist(): void
     {
         $this->expectException(FileDoesNotExistException::class);
@@ -84,6 +89,16 @@ private function issue(): Issue
         );
     }
 
+    private function issueWithRegex(): Issue
+    {
+        return Issue::from(
+            realpath(__DIR__ . '/../../../_files/baseline/FileWithIssues.php'),
+            10,
+            null,
+            '(.)*',
+        );
+    }
+
     private function anotherIssue(): Issue
     {
         return Issue::from(