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/* jshint node: true, unused: false */
/* global describe, it, beforeEach, afterEach */
'use strict';
var assert = require('assert');
var mbgl = require('..');
var fs = require('fs');
var path = require('path');
var mkdirp = require('mkdirp');
mkdirp.sync('test/results');
var style = require('./fixtures/style.json');
describe('Map', function() {
describe('constructor', function() {
it('must be called with new', function() {
assert.throws(function() {
mbgl.Map();
}, /Use the new operator to create new Map objects/);
});
it('should require a FileSource object as first parameter', function() {
assert.throws(function() {
new mbgl.Map();
}, /Requires a FileSource as first argument/);
assert.throws(function() {
new mbgl.Map('fileSource');
}, /Requires a FileSource as first argument/);
assert.throws(function() {
new mbgl.Map({});
}, /Requires a FileSource as first argument/);
});
it('should require the FileSource object to have request and cancel methods', function() {
var fileSource = new mbgl.FileSource();
assert.throws(function() {
new mbgl.Map(fileSource);
}, /FileSource must have a request member function/);
fileSource.request = 'test';
assert.throws(function() {
new mbgl.Map(fileSource);
}, /FileSource must have a request member function/);
fileSource.request = function() {};
assert.throws(function() {
new mbgl.Map(fileSource);
}, /FileSource must have a cancel member function/);
fileSource.cancel = 'test';
assert.throws(function() {
new mbgl.Map(fileSource);
}, /FileSource must have a cancel member function/);
fileSource.cancel = function() {};
assert.doesNotThrow(function() {
new mbgl.Map(fileSource);
});
});
});
describe('load styles', function() {
var map;
var fileSource = new mbgl.FileSource();
fileSource.request = function() {};
fileSource.cancel = function() {};
beforeEach(function() {
map = new mbgl.Map(fileSource);
});
afterEach(function() {
map = null;
});
it('requires a string or object as the first parameter', function() {
assert.throws(function() {
map.load();
}, /Requires a map style as first argument/);
assert.throws(function() {
map.load('invalid');
}, /Expect either an object or array at root/);
});
it('accepts an empty stylesheet string', function() {
map.load('{}');
});
it('accepts a JSON stylesheet', function() {
map.load(style);
});
it('accepts a stringified stylesheet', function() {
map.load(JSON.stringify(style));
});
});
describe('render argument requirements', function() {
var map;
var fileSource = new mbgl.FileSource();
fileSource.request = function(req) {
fs.readFile(path.join('test', req.url), function(err, data) {
req.respond(err, { data: data });
assert.ifError(err);
});
};
fileSource.cancel = function() {};
beforeEach(function() {
map = new mbgl.Map(fileSource);
});
afterEach(function() {
map = null;
});
it('requires an object as the first parameter', function() {
assert.throws(function() {
map.render();
}, /First argument must be an options object/);
assert.throws(function() {
map.render('invalid');
}, /First argument must be an options object/);
});
it('requires a callback as the second parameter', function() {
assert.throws(function() {
map.render({});
}, /Second argument must be a callback function/);
assert.throws(function() {
map.render({}, 'invalid');
}, /Second argument must be a callback function/);
});
it('requires a style to be set', function(done) {
map.render({}, function(err) {
assert.ok(err);
assert.equal(err.message, 'Style is not set');
done();
});
});
it('returns an image', function(done) {
map.load(style);
map.render({}, function(err, data) {
assert.ifError(err);
fs.writeFileSync('test/results/image.png', data);
done();
});
});
});
});
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