function test(condition) {
	try {if (!condition()) throw new Error}
	catch (e) {console.error(e);test.failures.push(condition)}
	test.total++
}
test.total = 0
test.failures = []
test.print = function(print) {
	for (var i = 0; i < test.failures.length; i++) {
		print(test.failures[i].toString())
	}
	print("tests: " + test.total + "\nfailures: " + test.failures.length)
	
	if (test.failures.length > 0) {
		throw new Error(test.failures.length + " tests did not pass")
	}
}