wellknown/test/stringify.js

convert wkt to geojson

var wellknown = require('../'),
    test = require('tap').test;

test('wellknown', function(t) {
    t.throws(function() {
        wellknown.stringify({
            type: 'FeatureCollection'
        });
    }, 'does not accept featurecollections');

    var fixtures = [
        'LINESTRING (30 10, 10 30, 40 40)',
        'POINT (1 1)',
        'POINT (1 1 1 1)',
        'LINESTRING (1 2 3, 4 5 6)',
        'LINESTRING (1 2 3 4, 5 6 7 8)',
        'POLYGON ((30 10, 10 20, 20 40, 40 40, 30 10))',
        'POLYGON ((35 10, 10 20, 15 40, 45 45, 35 10), (20 30, 35 35, 30 20, 20 30))',
        'MULTIPOINT (1 1, 2 3)',
        'MULTIPOLYGON (((30 20, 10 40, 45 40, 30 20)), ((15 5, 40 10, 10 20, 5 10, 15 5), (10 10, 15 10, 15 15, 10 10)))',
        'MULTILINESTRING ((30 10, 10 30, 40 40), (30 10, 10 30, 40 40))',
        'GEOMETRYCOLLECTION (POINT (4 6), LINESTRING (4 6, 7 10))'
    ];

    fixtures.forEach(function(fix) {
        t.equal(fix, loop(fix), fix);
    });

    function loop(s) {
        return wellknown.stringify(wellknown(s));
    }

    t.equal(wellknown.stringify({
        type: 'Feature',
        properties: {},
        geometry: {
          type: 'Point',
          coordinates: [42, 20]
        }
    }), 'POINT (42 20)', 'point equal');

    t.end();
});