Function checkPollution

tests/qunit.js:958–971

( name )

}

function checkPollution( name ) {
	var old = config.pollution;
	saveGlobal();

	var newGlobals = diff( config.pollution, old );
	if ( newGlobals.length > 0 ) {
		ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
	}

	var deletedGlobals = diff( old, config.pollution );
	if ( deletedGlobals.length > 0 ) {
		ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
	}
}

// returns a new Array with the elements that are in a but not in b
function diff( a, b ) {