147 lines
4.6 KiB
JavaScript
147 lines
4.6 KiB
JavaScript
'use strict';
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require('../../support/test-helper');
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var assert = require('../../support/assert');
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var testClient = require('./support/test-client');
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var fs = require('fs');
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var http = require('http');
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var path = require('path');
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describe('blend http fallback', function () {
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var IMG_TOLERANCE_PER_MIL = 20;
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var httpRendererResourcesServer;
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before(function (done) {
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// Start a server to test external resources
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httpRendererResourcesServer = http.createServer(function (request, response) {
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if (request.url.match(/^\/error404\//)) {
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response.writeHead(404);
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response.end();
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} else {
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var filename = path.join(__dirname, '/../../fixtures/http/light_nolabels-1-0-0.png');
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if (request.url.match(/^\/dark\//)) {
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filename = path.join(__dirname, '/../../fixtures/http/dark_nolabels-1-0-0.png');
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}
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fs.readFile(filename, { encoding: 'binary' }, function (err, file) {
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if (err) {
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return done(err);
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}
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response.writeHead(200);
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response.write(file, 'binary');
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response.end();
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});
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}
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});
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httpRendererResourcesServer.listen(8033, done);
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});
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after(function (done) {
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httpRendererResourcesServer.close(done);
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});
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var mapConfig = {
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version: '1.2.0',
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layers: [
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{
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type: 'plain', // <- 0
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options: {
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color: '#fabada'
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}
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},
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{
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type: 'http', // <- 1
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options: {
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urlTemplate: 'http://127.0.0.1:8033/{s}/{z}/{x}/{y}.png',
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subdomains: ['light']
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}
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},
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{
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type: 'http', // <- 2
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options: {
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urlTemplate: 'http://127.0.0.1:8033/{s}/{z}/{x}/{y}.png',
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subdomains: ['dark']
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}
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},
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{
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type: 'http', // <- 3
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options: {
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urlTemplate: 'http://127.0.0.1:8033/{s}/{z}/{x}/{y}.png',
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subdomains: ['error404']
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}
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},
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{
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type: 'mapnik', // <- 4
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options: {
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sql: 'SELECT * FROM populated_places_simple_reduced',
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cartocss: '#layer { marker-fill:red; } #layer { marker-width: 2; }',
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cartocss_version: '2.3.0',
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geom_column: 'the_geom'
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}
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}
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]
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};
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var filteredLayersSuite = [
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// ['all'], // layers displayed: 2 + 4, skipping 3 as it fails
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[0, 4],
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[0, 3], // skips layer 3 as it fails
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[1, 2],
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[1, 3],
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[2, 3],
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[3, 4]
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];
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function blendPngFixture (layers) {
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return './test/fixtures/blend/http_fallback/blend-layers-' + layers.join('.') + '-zxy-1.0.0.png';
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}
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filteredLayersSuite.forEach(function (filteredLayers) {
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var layerFilter = filteredLayers.join(',');
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var tileRequest = {
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z: 1,
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x: 0,
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y: 0,
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layer: layerFilter,
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format: 'png'
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};
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it('should fallback on http error while blending layers ' + layerFilter + '/1/0/0.png', function (done) {
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testClient.getTileLayer(mapConfig, tileRequest, function (err, res) {
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assert.ifError(err);
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assert.imageBufferIsSimilarToFile(res.body, blendPngFixture(filteredLayers), IMG_TOLERANCE_PER_MIL,
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function (err) {
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assert.ok(!err, err);
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done();
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}
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);
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});
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});
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});
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it('should keep failing when http layer is requested individually', function (done) {
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var tileRequest = {
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z: 1,
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x: 0,
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y: 0,
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layer: 3,
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format: 'png'
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};
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var expectedResponse = {
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status: 400,
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headers: {
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'Content-Type': 'application/json; charset=utf-8'
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}
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};
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testClient.getTileLayer(mapConfig, tileRequest, expectedResponse, function (err, res) {
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assert.ok(!err);
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var parsedBody = JSON.parse(res.body);
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assert.deepStrictEqual(parsedBody.errors, [
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'Unable to fetch http tile: http://127.0.0.1:8033/error404/1/0/0.png [404]'
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]);
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done();
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});
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});
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});
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