Fix --functional without dataProvider

src/WrapperRunner/SuiteLoader.php

@@ -95,6 +95,8 @@ public function __construct(
                             $name .= '@' . $dataName;
                         }
                     }
+                } else {
+                    $name = sprintf('/%s$/', $name);
                 }
 
                 $tests[] = "$file\0$name";

test/Unit/WrapperRunner/WrapperRunnerTest.php

@@ -642,6 +642,28 @@ public function testFunctionalParallelization(): void
 
 Time: %s, Memory: %s MB
 
+OK%a
+EOF;
+        self::assertStringMatchesFormat($expectedOutput, $runnerResult->output);
+        self::assertSame(RunnerInterface::SUCCESS_EXIT, $runnerResult->exitCode);
+    }
+
+    #[RequiresPhp('8.2')]
+    public function testSameBeginningOfName(): void
+    {
+        $this->bareOptions['path']         = $this->fixture('same_beginning_of_name');
+        $this->bareOptions['--functional'] = true;
+
+        $runnerResult = $this->runRunner();
+
+        $expectedOutput = <<<'EOF'
+Processes:     2
+Runtime:       PHP %s
+
+....                                                                4 / 4 (100%)
+
+Time: %s, Memory: %s MB
+
 OK%a
 EOF;
         self::assertStringMatchesFormat($expectedOutput, $runnerResult->output);

test/fixtures/same_beginning_of_name/SameBeginningOfNameTest.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ParaTest\Tests\fixtures\same_beginning_of_name;
+
+use PHPUnit\Framework\TestCase;
+
+/** @internal */
+final class SameBeginningOfNameTest extends TestCase
+{
+    public function testSame(): void
+    {
+        self::assertTrue(true);
+    }
+
+    public function testSameBeginning(): void
+    {
+        self::assertTrue(true);
+    }
+
+    public function testSameBeginningOf(): void
+    {
+        self::assertTrue(true);
+    }
+
+    public function testSameBeginningOfName(): void
+    {
+        self::assertTrue(true);
+    }
+}