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'use strict';
var test = require('tape');
var mbgl = require('../../../../lib/mapbox-gl-native');
var fs = require('fs');
var path = require('path');
var style = require('../fixtures/style.json');
test('Map', function(t) {
t.test('must be constructed with new', function(t) {
t.throws(function() {
mbgl.Map();
}, /Use the new operator to create new Map objects/);
t.end();
});
t.test('must be constructed with options object', function(t) {
t.throws(function() {
new mbgl.Map();
}, /Requires an options object as first argument/);
t.throws(function() {
new mbgl.Map('options');
}, /Requires an options object as first argument/);
t.end();
});
t.test('requires request property', function(t) {
var options = {};
t.throws(function() {
new mbgl.Map(options);
}, /Options object must have a 'request' method/);
options.request = 'test';
t.throws(function() {
new mbgl.Map(options);
}, /Options object must have a 'request' method/);
options.request = function() {};
t.doesNotThrow(function() {
new mbgl.Map(options);
});
t.end();
});
t.test('optional cancel property must be a function', function(t) {
var options = {
request: function() {}
};
options.cancel = 'test';
t.throws(function() {
new mbgl.Map(options);
}, /Options object 'cancel' property must be a function/);
options.cancel = function() {};
t.doesNotThrow(function() {
new mbgl.Map(options);
});
t.end();
});
t.test('optional ratio property must be a number', function(t) {
var options = {
request: function() {}
};
options.ratio = 'test';
t.throws(function() {
new mbgl.Map(options);
}, /Options object 'ratio' property must be a number/);
options.ratio = 1.0;
t.doesNotThrow(function() {
new mbgl.Map(options);
});
t.end();
});
t.test('.load', function(t) {
var options = {
request: function() {},
ratio: 1
};
t.test('requires a map style as first argument', function(t) {
var map = new mbgl.Map(options);
t.throws(function() {
map.load();
}, /Requires a map style as first argument/);
map.release();
t.end();
});
t.test('expect either an object or array at root', { timeout: 1000 }, function(t) {
var map = new mbgl.Map(options);
mbgl.once('message', function(msg) {
t.equal(msg.severity, 'ERROR');
t.equal(msg.class, 'ParseStyle');
t.ok(msg.text.match(/Invalid value/));
map.release();
t.end();
});
map.load('invalid');
});
t.test('accepts an empty stylesheet string', function(t) {
var map = new mbgl.Map(options);
t.doesNotThrow(function() {
map.load('{}');
});
map.release();
t.end();
});
t.test('accepts a JSON stylesheet', { timeout: 1000 }, function(t) {
var map = new mbgl.Map(options);
t.doesNotThrow(function() {
map.load(style);
});
map.release();
t.end();
});
t.test('accepts a stringified stylesheet', { timeout: 1000 }, function(t) {
var map = new mbgl.Map(options);
t.doesNotThrow(function() {
map.load(JSON.stringify(style));
});
map.release();
t.end();
});
t.test('does not immediately trigger any tile loads', function(t) {
var map = new mbgl.Map({
request: function(req) {
t.fail('unexpected request ' + req.url);
},
ratio: 1
});
map.load(style);
setTimeout(function() {
map.release();
t.end();
}, 100);
});
});
t.test('.render', function(t) {
var options = {
request: function(req, callback) {
fs.readFile(path.join(__dirname, '..', req.url), function(err, data) {
callback(err, { data: data });
});
},
ratio: 1
};
t.test('requires an object as the first parameter', function(t) {
var map = new mbgl.Map(options);
t.throws(function() {
map.render();
}, /First argument must be an options object/);
t.throws(function() {
map.render('invalid');
}, /First argument must be an options object/);
map.release();
t.end();
});
t.test('requires a callback as the second parameter', function(t) {
var map = new mbgl.Map(options);
t.throws(function() {
map.render({});
}, /Second argument must be a callback function/);
t.throws(function() {
map.render({}, 'invalid');
}, /Second argument must be a callback function/);
map.release();
t.end();
});
t.test('requires a style to be set', function(t) {
var map = new mbgl.Map(options);
t.throws(function() {
map.render({}, function() {});
}, /Style is not loaded/);
map.release();
t.end();
});
t.test('returns an error', function(t) {
var map = new mbgl.Map(options);
map.load(style);
map.render({ zoom: 1 }, function(err, data) {
map.release();
t.ok(err, 'returns error');
t.end();
});
});
t.test('double release', function(t) {
var map = new mbgl.Map(options);
map.release();
t.throws(function() {
map.release();
}, /Map resources have already been released/);
t.end();
});
t.test('returns an image', function(t) {
var map = new mbgl.Map(options);
map.load(style);
map.render({}, function(err, pixels) {
t.error(err);
map.release();
t.ok(pixels);
t.ok(pixels instanceof Buffer);
t.equal(pixels.length, 512 * 512 * 4)
t.end();
});
});
t.test('can be called several times in serial', function(t) {
var completed = 0;
var remaining = 10;
var start = +new Date;
var map = new mbgl.Map(options);
map.load(style);
function render() {
map.render({}, function(err, data) {
t.error(err);
t.ok(true, 'render @ ' + ((+new Date) - start) + 'ms');
if (++completed === remaining) {
map.release();
t.end();
} else {
render();
}
});
}
render();
});
t.test('throws if called in parallel', function(t) {
var map = new mbgl.Map(options);
map.load(style);
t.throws(function() {
map.render({}, function() {});
map.render({}, function() {});
}, /Map is currently rendering an image/);
map.release();
t.end();
});
});
});
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