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map_generation.test.js
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map_generation.test.js
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var mapnik = require('mapnik');
var assert = require('assert');
var fs = require('fs');
var path = require('path');
var helper = require('./support/helper');
describe('mapnik rendering ', function() {
it('should render async (blank)', function(done) {
var map = new mapnik.Map(600, 400);
assert.ok(map instanceof mapnik.Map);
map.extent = map.extent;
var im = new mapnik.Image(map.width, map.height);
map.render(im, {scale: 1}, function(err, image) {
assert.ok(image);
assert.ok(!err);
var buffer = im.encodeSync('png');
done();
//assert.equal(helper.md5(buffer), 'ef33223235b26c782736c88933b35331');
});
});
it('should render async (real data)', function(done) {
var filename = './test/tmp/renderFile2.png';
var map = new mapnik.Map(600, 400);
map.loadSync('./examples/stylesheet.xml');
map.zoomAll();
map.renderFile(filename, function(error) {
assert.ok(!error);
assert.ok(path.existsSync(filename));
done();
});
});
it('should render async to file (png)', function(done) {
var filename = './test/tmp/renderFile2.png';
var map = new mapnik.Map(600, 400);
map.loadSync('./examples/stylesheet.xml');
map.zoomAll();
map.renderFile(filename, function(error) {
assert.ok(!error);
assert.ok(path.existsSync(filename));
done();
});
});
it('should render async to file (cairo format)', function(done) {
if (mapnik.supports.cairo) {
var filename = './test/tmp/renderFile2.pdf';
var map = new mapnik.Map(600, 400);
map.loadSync('./examples/stylesheet.xml');
map.zoomAll();
map.renderFile(filename, { format: 'pdf' }, function(error) {
assert.ok(!error);
assert.ok(path.existsSync(filename));
done();
});
} else { done(); }
});
it('should render async to file (guessing format)', function(done) {
var filename = './test/tmp/renderFile.jpg';
var map = new mapnik.Map(600, 400);
map.loadSync('./examples/stylesheet.xml');
map.zoomAll();
map.renderFile(filename, function(error) {
assert.ok(!error);
assert.ok(path.existsSync(filename));
done();
});
});
it('should render async and throw with invalid format', function(done) {
var filename = './test/tmp/renderFile2.pdf';
var map = new mapnik.Map(600, 400);
map.loadSync('./examples/stylesheet.xml');
map.zoomAll();
try {
map.renderFile(filename, null, function(error) { });
} catch (ex) {
assert.ok(ex);
done();
}
});
});