Elgg\CommitMessageGitHookTest::testRejectsEmptyStringInput PHP Method

    public function testRejectsEmptyStringInput()
    {
        // have to pass an empty arg because it looks for stdin
        $cmd = "{$this->validateScript} ''";
        $result = $this->runCmd($cmd, $output);
        $this->assertFalse($result, $output);
    }