114 lines
4.7 KiB
JavaScript
114 lines
4.7 KiB
JavaScript
require('../../helper');
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require('../../support/assert');
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var app = require(global.settings.app_root + '/app/controllers/app')
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, assert = require('assert')
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, querystring = require('querystring')
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, _ = require('underscore')
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, zipfile = require('zipfile')
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, fs = require('fs')
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, libxmljs = require('libxmljs')
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;
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// allow lots of emitters to be set to silence warning
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app.setMaxListeners(0);
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suite('export.topojson', function() {
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// TOPOJSON tests
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test('GET two polygons sharing an edge as topojson', function(done){
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assert.response(app, {
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url: '/api/v1/sql?' + querystring.stringify({
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q: "SELECT 1 as cartodb_id, 'POLYGON((-5 0,5 0,0 5,-5 0))'::geometry as the_geom " +
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" UNION ALL " +
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"SELECT 2 as cartodb_id, 'POLYGON((0 -5,0 5,-5 0,0 -5))'::geometry as the_geom ",
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format: 'topojson'
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}),
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headers: {host: 'vizzuality.cartodb.com'},
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method: 'GET'
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},{ }, function(res){
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assert.equal(res.statusCode, 200, res.body);
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var cd = res.header('Content-Disposition');
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assert.equal(true, /^attachment/.test(cd), 'TOPOJSON is not disposed as attachment: ' + cd);
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assert.equal(true, /filename=cartodb-query.topojson/gi.test(cd));
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var topojson = JSON.parse(res.body);
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assert.equal(topojson.type, 'Topology');
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// Check transform
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assert.ok(topojson.hasOwnProperty('transform'));
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var trans = topojson.transform;
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assert.equal(_.keys(trans).length, 2); // only scale and translate
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assert.equal(trans.scale.length, 2); // scalex, scaley
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assert.equal(Math.round(trans.scale[0]*1e6), 1000);
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assert.equal(Math.round(trans.scale[1]*1e6), 1000);
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assert.equal(trans.translate.length, 2); // translatex, translatey
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assert.equal(trans.translate[0], -5);
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assert.equal(trans.translate[1], -5);
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// Check objects
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assert.ok(topojson.hasOwnProperty('objects'));
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assert.equal(_.keys(topojson.objects).length, 2);
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var obj = topojson.objects[0];
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//console.dir(obj);
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// Expected: { type: 'Polygon', arcs: [ [ 0, 1 ] ] }
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assert.equal(_.keys(obj).length, 2); // only type and arcs, no props
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assert.equal(obj.type, 'Polygon');
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assert.equal(obj.arcs.length, 1); /* only shell, no holes */
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var shell = obj.arcs[0];
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assert.equal(shell.length, 2); /* one shared arc, one non-shared */
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assert.equal(shell[0], 0); /* shared arc */
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assert.equal(shell[1], 1); /* non-shared arc */
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obj = topojson.objects[1];
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//console.dir(obj);
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// Expected: { type: 'Polygon', arcs: [ [ 0, 2 ] ] }
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assert.equal(_.keys(obj).length, 2); // only type and arcs, no props
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assert.equal(obj.type, 'Polygon');
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assert.equal(obj.arcs.length, 1); /* only shell, no holes */
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shell = obj.arcs[0];
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assert.equal(shell.length, 2); /* one shared arc, one non-shared */
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assert.equal(shell[0], 0); /* shared arc */
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assert.equal(shell[1], 2); /* non-shared arc */
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// Check arcs
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assert.ok(topojson.hasOwnProperty('arcs'));
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assert.equal(topojson.arcs.length, 3); // one shared, two non-shared
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var arc = topojson.arcs[0]; // shared arc
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assert.equal(arc.length, 2); // shared arc has two vertices
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var p = arc[0];
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assert.equal(Math.round(p[0]*trans.scale[0]), 0);
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assert.equal(Math.round(p[1]*trans.scale[1]), 5);
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p = arc[1];
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assert.equal(Math.round(p[0]*trans.scale[0]), 5);
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assert.equal(Math.round(p[1]*trans.scale[1]), 5);
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arc = topojson.arcs[1]; // non shared arc
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assert.equal(arc.length, 3); // non shared arcs have three vertices
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p = arc[0];
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assert.equal(Math.round(p[0]*trans.scale[0]), 5);
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assert.equal(Math.round(p[1]*trans.scale[1]), 10);
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p = arc[1];
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assert.equal(Math.round(p[0]*trans.scale[0]), 5);
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assert.equal(Math.round(p[1]*trans.scale[1]), -5);
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p = arc[2];
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assert.equal(Math.round(p[0]*trans.scale[0]), -10);
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assert.equal(Math.round(p[1]*trans.scale[1]), 0);
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arc = topojson.arcs[2]; // non shared arc
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assert.equal(arc.length, 3); // non shared arcs have three vertices
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p = arc[0];
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assert.equal(Math.round(p[0]*trans.scale[0]), 5);
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assert.equal(Math.round(p[1]*trans.scale[1]), 10);
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p = arc[1];
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assert.equal(Math.round(p[0]*trans.scale[0]), 0);
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assert.equal(Math.round(p[1]*trans.scale[1]), -10);
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p = arc[2];
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assert.equal(Math.round(p[0]*trans.scale[0]), -5);
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assert.equal(Math.round(p[1]*trans.scale[1]), 5);
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done();
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});
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});
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});
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