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1 files changed, 20 insertions, 0 deletions

diff --git a/www/wiki/tests/phpunit/includes/GlobalFunctions/wfShellExecTest.php b/www/wiki/tests/phpunit/includes/GlobalFunctions/wfShellExecTest.php
new file mode 100644
index 00000000..fcd26f54
--- /dev/null
+++ b/www/wiki/tests/phpunit/includes/GlobalFunctions/wfShellExecTest.php
@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * @group GlobalFunctions
+ * @covers ::wfShellExec
+ */
+class WfShellExecTest extends MediaWikiTestCase {
+	public function testBug67870() {
+		$command = wfIsWindows()
+			// 333 = 331 + CRLF
+			? ( 'for /l %i in (1, 1, 1001) do @echo ' . str_repeat( '*', 331 ) )
+			: 'printf "%-333333s" "*"';
+
+		// Test several times because it involves a race condition that may randomly succeed or fail
+		for ( $i = 0; $i < 10; $i++ ) {
+			$output = wfShellExec( $command );
+			$this->assertEquals( 333333, strlen( $output ) );
+		}
+	}
+}