skip mapbox mocks on CircleCI,

- as mapbox toImage blows the image generation queue.
- note that generating image one-by-one on CircleCI works fine
  but very slowly.

Author: etpinard

circle.yml

@@ -21,7 +21,7 @@ dependencies:
     - wget --server-response --spider --tries=8 --retry-connrefused http://localhost:9010/ping
 test:
   override:
-    - sudo ./tasks/run_in_testbed.sh mytestbed "node test/image/compare_pixels_test.js"
+    - sudo ./tasks/run_in_testbed.sh mytestbed "export CIRCLECI=1 && node test/image/compare_pixels_test.js"
     - sudo ./tasks/run_in_testbed.sh mytestbed "node test/image/export_test.js"
     - npm run citest-jasmine
     - npm run test-bundle

test/image/compare_pixels_test.js

@@ -54,6 +54,13 @@ function runAll() {
             );
         });
 
+        // skip mapbox mocks on CircleCI (for now)
+        if(process.env.CIRCLECI) {
+            mocks = mocks.filter(function(mock) {
+                return mock.indexOf('mapbox_') === -1;
+            });
+        }
+
         t.plan(mocks.length);
 
         for(var i = 0; i < mocks.length; i++) {