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'use strict';
var mockfs = require('../mockfs');
var mbgl = require('../../index');
var test = require('tape');
[ 'sprite_png', 'sprite_json', 'source_vector', 'glyph' ].forEach(function (resource) {
test(`render reports an error when the request function responds with an error (${resource})`, function(t) {
var map = new mbgl.Map({
request: function(req, callback) {
var data = mockfs.dataForRequest(req);
if (mockfs[resource] === data) {
callback(new Error('message'));
} else {
callback(null, { data: data });
}
}
});
map.load(mockfs.style_vector);
map.render({ zoom: 16 }, function(err, pixels) {
t.assert(err);
t.assert(/message/.test(err.message));
t.assert(!pixels);
t.end();
});
});
});
[ 'vector', 'raster' ].forEach(function (type) {
test(`render does not report an error when the request function responds with no data for a tile (${type})`, function(t) {
var map = new mbgl.Map({
request: function(req, callback) {
var data = mockfs.dataForRequest(req);
if (mockfs[`tile_${type}`] === data) {
callback();
} else {
callback(null, { data: data });
}
}
});
map.load(mockfs[`style_${type}`]);
map.render({ zoom: 16 }, function(err, pixels) {
t.error(err);
t.assert(pixels);
t.end();
});
});
test(`render reports an error when the request function responds with an error for a tile (${type})`, function(t) {
var map = new mbgl.Map({
request: function(req, callback) {
var data = mockfs.dataForRequest(req);
if (mockfs[`tile_${type}`] === data) {
callback(new Error('message'));
} else {
callback(null, { data: data });
}
}
});
map.load(mockfs[`style_${type}`]);
map.render({ zoom: 16 }, function(err, pixels) {
t.assert(err);
t.assert(/message/.test(err.message));
t.assert(!pixels);
t.end();
});
});
});
test(`render reports an error if the request function throws an exception`, function(t) {
var map = new mbgl.Map({
request: function() {
throw new Error('message');
}
});
map.load(mockfs.style_vector);
map.render({ zoom: 16 }, function(err, pixels) {
t.assert(err);
t.assert(/message/.test(err.message));
t.assert(!pixels);
t.end();
});
});
test(`render ignores request functions throwing an exception after calling the callback`, function(t) {
var map = new mbgl.Map({
request: function(req, callback) {
var data = mockfs.dataForRequest(req);
callback(null, { data: data });
throw new Error('message');
}
});
map.load(mockfs.style_vector);
map.render({ zoom: 16 }, function(err, pixels) {
t.error(err);
t.assert(pixels);
t.end();
});
});
test(`render ignores request functions calling the callback a second time`, function(t) {
var map = new mbgl.Map({
request: function(req, callback) {
var data = mockfs.dataForRequest(req);
callback(null, { data: data });
callback(null, { data: data });
}
});
map.load(mockfs.style_vector);
map.render({ zoom: 16 }, function(err, pixels) {
t.error(err);
t.assert(pixels);
t.end();
});
});
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