[test] One map per pixel ratio in render.test.js --recycle-map

1 files changed, 36 insertions, 16 deletions

diff --git a/platform/node/test/suite_implementation.js b/platform/node/test/suite_implementation.js
index 0ddf49679b..323f429bed 100644
--- a/platform/node/test/suite_implementation.js
+++ b/platform/node/test/suite_implementation.js
@@ -10,23 +10,27 @@ mbgl.on('message', function(msg) {
     console.log('%s (%s): %s', msg.severity, msg.class, msg.text);
 });
 
+// Map of map objects by pixel ratio
+var maps = new Map();
+
 module.exports = function (style, options, callback) {
-    var map = new mbgl.Map({
-        ratio: options.pixelRatio,
-        request: function(req, callback) {
-            request(req.url, {encoding: null}, function (err, response, body) {
-                if (err) {
-                    callback(err);
-                } else if (response.statusCode == 404) {
-                    callback();
-                } else if (response.statusCode != 200) {
-                    callback(new Error(response.statusMessage));
-                } else {
-                    callback(null, {data: body});
-                }
-            });
+    if (options.recycleMap) {
+        if (maps.has(options.pixelRatio)) {
+            var map = maps.get(options.pixelRatio);
+            map.request = mapRequest;
+        } else {
+            maps.set(options.pixelRatio, new mbgl.Map({
+                ratio: options.pixelRatio,
+                request: mapRequest
+            }));
+            var map = maps.get(options.pixelRatio);
         }
-    });
+    } else {
+        var map = new mbgl.Map({
+            ratio: options.pixelRatio,
+            request: mapRequest
+        });
+    }
 
     var timedOut = false;
     var watchdog = setTimeout(function () {
@@ -48,12 +52,28 @@ module.exports = function (style, options, callback) {
 
     map.load(style, { defaultStyleCamera: true });
 
+    function mapRequest(req, callback) {
+        request(req.url, {encoding: null}, function (err, response, body) {
+            if (err) {
+                callback(err);
+            } else if (response.statusCode == 404) {
+                callback();
+            } else if (response.statusCode != 200) {
+                callback(new Error(response.statusMessage));
+            } else {
+                callback(null, {data: body});
+            }
+        });
+    };
+
     applyOperations(options.operations, function() {
         map.render(options, function (err, pixels) {
             var results = options.queryGeometry ?
               map.queryRenderedFeatures(options.queryGeometry, options.queryOptions || {}) :
               [];
-            map.release();
+            if (!options.recycleMap) {
+                map.release();
+            }
             if (timedOut) return;
             clearTimeout(watchdog);
             callback(err, pixels, results.map(prepareFeatures));