LessThan3 programming challenge

lessthan3.js

// Compare function for sort:
// Move 'jack' forward first, then 'jill' if no 'jack'; leave other values unsorted
function compare(a, b){
	if (a === 'jack'){
		return -1;
	} else if (b === 'jack') {
		return 1;
	}	else if (a === 'jill') {
		return -1;
	} else if (b === 'jill') {
		return 1;
	} else {
		return 0;
	}
}

// Define test cases and expected outputs
var testCases = [
	['bob', 'jill', 'jack', 'amanda'],
	['bob', 'jill', 'amanda'],
	['bob', 'jack', 'jill', 'jack', 'amanda']
];

var expectedOutputs = [
	['jack', 'jill', 'bob', 'amanda'],
	['jill', 'bob', 'amanda'],
	['jack', 'jack', 'jill', 'bob', 'amanda']
];

// Perform tests
testCases.forEach(function(testCase, i){
	console.log('Test case ' + i);
	console.log('input: ' + testCase.join(', '));

	testCase.sort(compare); // Sort in place

	console.log('output: ' + testCase.join(', '));

	if (testCase.join('') === expectedOutputs[i].join('')){
		console.log("=> Pass");
	} else {
		console.log("=> Fail");
	}
	console.log('');
})