Add test for #967

tests/_files/source_match_expression.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+final class MatchExpr
+{
+    public int $result;
+
+    public function __construct(int $value)
+    {
+        $this->result = match ($value) {
+            0 => 4,
+            1 => 5,
+            2 => 6,
+            3 => 7,
+            default => 8,
+        };
+    }
+}

tests/tests/StaticAnalysis/ExecutableLinesFindingVisitorTest.php

@@ -9,6 +9,7 @@
  */
 namespace SebastianBergmann\CodeCoverage\StaticAnalysis;
 
+use PHPUnit\Framework\Attributes\Ticket;
 use function explode;
 use function file_get_contents;
 use function preg_match;
@@ -39,6 +40,32 @@ public function testExecutableLinesAreGroupedByBranchPhp82(): void
         $this->doTestSelfDescribingAssert(TEST_FILES_PATH . 'source_for_branched_exec_lines_php82.php');
     }
 
+    #[Ticket('https://github.com/sebastianbergmann/php-code-coverage/issues/967')]
+    public function testMatchArmsAreProcessedCorrectly(): void
+    {
+        $source                        = file_get_contents(__DIR__ . '/../../_files/source_match_expression.php');
+        $parser                        = (new ParserFactory)->createForHostVersion();
+        $nodes                         = $parser->parse($source);
+        $executableLinesFindingVisitor = new ExecutableLinesFindingVisitor($source);
+
+        $traverser = new NodeTraverser;
+        $traverser->addVisitor($executableLinesFindingVisitor);
+        $traverser->traverse($nodes);
+
+        $this->assertSame(
+            [
+                8  => 2,
+                9  => 3,
+                10 => 4,
+                11 => 5,
+                12 => 6,
+                13 => 7,
+                14 => 2,
+            ],
+            $executableLinesFindingVisitor->executableLinesGroupedByBranch(),
+        );
+    }
+
     private function doTestSelfDescribingAssert(string $filename): void
     {
         $source                        = file_get_contents($filename);