Missing tests for regExpMatch

Author: klimick

tests/Runtime/Functions/Util/RegExpTest.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Runtime\Functions\Util;
+
+use Fp\Functional\Option\Option;
+use PHPUnit\Framework\TestCase;
+
+use function Fp\Util\regExpMatch;
+
+final class RegExpTest extends TestCase
+{
+    /**
+     * @param Option<non-empty-string> $expected
+     * @dataProvider provideRegExpMatchCases
+     */
+    public function testRegExpMatch(string $expr, string $text, Option $expected, int|string $capturingGroup = 0): void
+    {
+        $this->assertEquals($expected, regExpMatch($expr, $text, $capturingGroup));
+    }
+
+    public function provideRegExpMatchCases(): iterable
+    {
+        yield 'No match' => [
+            '/[0-9]/', 'a', Option::none(),
+        ];
+        yield 'Match' => [
+            '/[0-9]/', '1', Option::some('1'),
+        ];
+        yield 'Capturing group' => [
+            '/([0-9])([a-z])/', '1a', Option::some('a'), 2,
+        ];
+        yield 'Named capturing group' => [
+            '/(?<num>[0-9])(?<str>[a-z])/', '1a', Option::some('a'), 'str',
+        ];
+    }
+}