Add support for geocoder api (carmen dev).

test/geocoder.test.js

@@ -0,0 +1,92 @@
+var fs = require('fs');
+var assert = require('assert');
+var util = require('util');
+var MBTiles = require('..');
+
+describe('geocoder (carmen) API', function() {
+
+var expected = {
+    bounds: '-141.005548666451,41.6690855919108,-52.615930948992,83.1161164353916',
+    lat: 56.8354595949484,
+    lon: -110.424643384994,
+    name: 'Canada',
+    population: 33487208,
+    search: 'Canada, CA'
+};
+
+var tmp = '/tmp/mbtiles-test-' + (+new Date).toString(16);
+var index;
+var from;
+var to;
+
+before(function() {
+    try { fs.mkdirSync(tmp); } catch(err) { throw err; }
+});
+before(function(done) {
+    index = new MBTiles(__dirname + '/fixtures/geocoder_data.mbtiles', done);
+});
+before(function(done) {
+    from = new MBTiles(__dirname + '/fixtures/plain_4.mbtiles', done);
+});
+before(function(done) {
+    to = new MBTiles(tmp + '/indexed.mbtiles', done);
+});
+
+after(function(done) {
+    this.timeout(5000);
+    index.close(function(err) {
+        if (err) throw err;
+        from.close(function(err) {
+            if (err) throw err;
+            to.close(function(err) {
+                if (err) throw err;
+                try { fs.unlinkSync(tmp + '/indexed.mbtiles'); } catch(err) { throw err; }
+                try { fs.rmdirSync(tmp); } catch(err) { throw err; }
+                done();
+            });
+        });
+    });
+});
+
+it('getGeocoderData', function(done) {
+    index.getGeocoderData('term', 0, function(err, buffer) {
+        assert.ifError(err);
+        assert.equal(3891, buffer.length);
+        done();
+    });
+});
+
+it('putGeocoderData', function(done) {
+    this.timeout(5000);
+    to.startWriting(function(err) {
+        assert.ifError(err);
+        to.putGeocoderData('term', 0, new Buffer('asdf'), function(err) {
+            assert.ifError(err);
+            to.stopWriting(function(err) {
+                assert.ifError(err);
+                to.getGeocoderData('term', 0, function(err, buffer) {
+                    assert.ifError(err);
+                    assert.deepEqual('asdf', buffer.toString());
+                    done();
+                });
+            });
+        });
+    });
+});
+
+it('getIndexableDocs', function(done) {
+    from.getIndexableDocs({ limit: 10 }, function(err, docs, pointer) {
+        assert.ifError(err);
+        assert.equal(docs.length, 10);
+        assert.deepEqual(pointer, { limit: 10, offset: 10, nogrids: false });
+        from.getIndexableDocs(pointer, function(err, docs, pointer) {
+            assert.ifError(err);
+            assert.equal(docs.length, 10);
+            assert.deepEqual(pointer, { limit: 10, offset: 20, nogrids: false });
+            done();
+        });
+    });
+});
+
+});
+