68 lines
2.8 KiB
JavaScript
68 lines
2.8 KiB
JavaScript
require('sqlite3').verbose();
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var fs = require('fs');
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var assert = require('assert');
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var MBTiles = require('..');
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var fixtureDir = __dirname + '/fixtures/output';
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describe('write grids', function() {
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before(function(done) {
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// Recreate output directory to remove previous tests.
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try { fs.unlinkSync(fixtureDir + '/write_2.mbtiles'); } catch(err) {}
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try { fs.mkdirSync(fixtureDir, 0755); } catch(err) {}
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done();
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});
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it('test mbtiles file creation', function(done) {
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this.timeout(20e3);
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var completed = { written: 0, read: 0 };
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new MBTiles(fixtureDir + '/write_2.mbtiles', function(err, mbtiles) {
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completed.open = true;
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if (err) throw err;
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mbtiles.startWriting(function(err) {
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completed.started = true;
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if (err) throw err;
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fs.readdirSync(__dirname + '/fixtures/grids/').forEach(insertGrid);
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});
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function insertGrid(file) {
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var coords = file.match(/^plain_2_(\d+)_(\d+)_(\d+).json$/);
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if (!coords) return;
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// Flip Y coordinate because file names are TMS, but .putGrid() expects XYZ.
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coords[2] = Math.pow(2, coords[3]) - 1 - coords[2];
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var grid = fs.readFileSync(__dirname + '/fixtures/grids/' + file, 'utf8');
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mbtiles.putGrid(coords[3] | 0, coords[1] | 0, coords[2] | 0, JSON.parse(grid), function(err) {
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if (err) throw err;
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completed.written++;
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if (completed.written === 241) {
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mbtiles.stopWriting(function(err) {
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completed.stopped = true;
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if (err) throw err;
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verifyWritten();
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});
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}
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});
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}
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function verifyWritten() {
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fs.readdirSync(__dirname + '/fixtures/grids/').forEach(function(file) {
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var coords = file.match(/^plain_2_(\d+)_(\d+)_(\d+).json$/);
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if (coords) {
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// Flip Y coordinate because file names are TMS, but .getTile() expects XYZ.
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coords[2] = Math.pow(2, coords[3]) - 1 - coords[2];
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mbtiles.getGrid(coords[3] | 0, coords[1] | 0, coords[2] | 0, function(err, grid) {
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if (err) throw err;
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assert.deepEqual(JSON.stringify(grid), fs.readFileSync(__dirname + '/fixtures/grids/' + file, 'utf8'));
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completed.read++;
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if (completed.read === 241) 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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});
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});
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