var should = require('should');

describe('Navigation', function () {
    var book;

    before(function() {
        return books.parse("summary")
            .then(function(_book) {
                book = _book;
            });
    });

    it('should correctly parse navigation as a map', function() {
        book.should.have.property("navigation");
        book.navigation.should.have.property("README.md");
        book.navigation.should.have.property("README.md");
    });

    it('should correctly include filenames', function() {
        book.navigation.should.have.property("README.md");
        book.navigation.should.have.property("PAGE1.md");
        book.navigation.should.have.property("folder/PAGE2.md");
        book.navigation.should.not.have.property("NOTFOUND.md");
    });

    it('should correctly detect next/prev for README', function() {
        var README = book.navigation['README.md'];

        README.index.should.equal(0);
        README.should.have.property('next');
        should(README.prev).not.be.ok();

        README.next.should.have.property('path');
        README.next.path.should.equal('PAGE1.md');
    });

    it('should correctly detect next/prev a page', function() {
        var PAGE = book.navigation['PAGE1.md'];

        PAGE.index.should.equal(1);
        PAGE.should.have.property('next');
        PAGE.should.have.property('prev');

        PAGE.prev.should.have.property('path');
        PAGE.prev.path.should.equal('README.md');

        PAGE.next.should.have.property('path');
        PAGE.next.path.should.equal('folder/PAGE2.md');
    });

    it('should correctly detect next/prev for last page', function() {
        var PAGE = book.navigation['folder/PAGE2.md'];

        PAGE.index.should.equal(2);
        PAGE.should.have.property('prev');
        should(PAGE.next).not.be.ok();

        PAGE.prev.should.have.property('path');
        PAGE.prev.path.should.equal('PAGE1.md');
    });
});