module("About Arrays (topics/about_arrays.js)");

test("array literal syntax and indexing", function() {

var favouriteThings = ["cellar door", 42, true]; // note that array elements do not have to be of the same type

equal("cellar door", favouriteThings[0], 'what is in the first position of the array?');

equal(42, favouriteThings[1], 'what is in the second position of the array?');

equal(true, favouriteThings[2], 'what is in the third position of the array?');

});

test("array type", function() {

equal('object', typeof([]), 'what is the type of an array?');

});

test("length", function() {

var collection = ['a','b','c'];

equal(3, collection.length, 'what is the length of the collection array?');

});

test("splice", function() {

var daysOfWeek = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'];

var workingWeek = daysOfWeek.splice(0, 5);

var weekend = daysOfWeek;

deepEqual(workingWeek, ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'], 'what is the value of workingWeek?');

deepEqual(weekend, ['Saturday', 'Sunday'], 'what is the value of weekend?');

});

test("stack methods", function() {

var stack = [];

stack.push("first");

stack.push("second");

equal('second', stack.pop(), 'what will be the first value popped off the stack?');

equal('first', stack.pop(), 'what will be the second value popped off the stack?');

});

test("queue methods", function() {

var queue = [];

queue.push("first");

queue.push("second");

queue.unshift("third");

equal('third', queue.shift(), 'what will be shifted out first?');

equal('first', queue.shift(), 'what will be shifted out second?');

});