Mocha-Chai-JS-example.js

/* Prerequisites:
MOCHA JS and CSS and CHAI JS Libraries must have loaded prior to this script
*/

/* uncommenting the next row disables the test output to the console, 
eg if you want to see the results visually in the browser window. 
For this, a DIV with an id="mocha" must have been inserted into the page.
*/
mocha.reporter(mocha.WebKit);

// setting up Mocha Reporting UI
mocha.setup({
    ui: 'bdd',
    globals: ['']
}); // sets UI
// telling Mocha to not throw away existing test results
mocha.cleanReferencesAfterRun(false);
// starting a test "suite" (a collection of tests)
describe("My Test Suite", function () {
    describe("TEST Group 1", function () { // first group of tests
        it("Is 7 + 4 = 10?", function () {
            chai.assert.isTrue(7 + 4 === 10); // Chai's assert offers a ton of options to evaluate a statement (https://www.chaijs.com/api/assert/)
        });
        it("Is 7 + 3 at least 9?", function () {
            chai.assert.isAtLeast(7 + 3, 9);
        });
    });
    describe("TEST Group 2", function () {
        it("Is the Page Context Data Layer an Array?", function () {
            chai.assert.isArray(utag.data); // this will also fail because it is an Object
        });
    });
    describe('Done!', function (done) {
        it('Ran all tests', function (done) {
            done(); // <-- this tells mocha the test has ended
        });
    });
});
// tell Mocha to start capturing thrown errors and report them when "done()" is called
mocha.run(asyncOnly = false);