query-overpass/test/specs.js

Make queries to OpenStreetMap's overpass API and output as GeoJSON

var test = require('tape'),
    queryOverpass = require('../');

test('can execute basic query', function(t) {
    var req = queryOverpass('[out:json];node(57.7,11.9,57.8,12.0)[amenity=bar];out;', function(err, geojson) {
        if (err) {
            return t.fail(err);
        }

        t.ok(geojson, 'Should return data');
        t.equal(geojson.type, 'FeatureCollection', 'Should return a FeatureCollection');
        t.ok(geojson.features && geojson.features.length > 0, 'Should return at least one feature');

        var f = geojson.features[0];
        t.ok(f.properties && f.properties.tags, 'Properties are not flattened');

        t.ok(req.path, 'Should return request object');

        t.end();
    });
});

test('can not resolve overpass url', function(t) {
    queryOverpass('[out:json];node(57.7,11.9,57.8,12.0)[amenity=bar];out;', function(err, geojson) {
        t.ok(err, 'Should return an error');
        t.ok(err.message.includes('getaddrinfo ENOTFOUND unknown_domain'), 'Should return the proper error message');
        t.end();

    }, { overpassUrl: 'http://unknown_domain/api/interpreter' });
});

test('can flatten properties', function(t) {
    queryOverpass('[out:json];node(57.7,11.9,57.8,12.0)[amenity=restaurant];out;', function(err, geojson) {
        if (err) {
            return t.fail(err);
        }

        t.ok(geojson, 'Should return data');
        t.equal(geojson.type, 'FeatureCollection', 'Should return a FeatureCollection');
        t.ok(geojson.features && geojson.features.length > 0, 'Should return at least one feature');

        var f = geojson.features[0];
        t.ok(f.properties && !f.properties.tags && f.properties.name, 'Properties are not flattened');
        t.end();
    }, { flatProperties: true });
});