true, "usemhchemtexified" => true ]; $warnings = []; $checkRes = $texVC->check( $input, $options, $warnings, true ); $this->assertStringContainsString( '', $checkRes["input"]->renderMML() ); } public function testMkern() { $input = "\\ce{A, B}"; $texVC = new TexVC(); $options = [ "usemhchem" => true, "usemhchemtexified" => true ]; $warnings = []; $checkRes = $texVC->check( $input, $options, $warnings, true ); $this->assertStringContainsString( '', $checkRes["input"]->renderMML() ); } }