added runtime test for sneakernet, exportblocks now takes argument

1 job for lan in 8 minutes and 6 seconds
Status Job ID Name Coverage
  Test
failed #491787966
test

00:08:06

 
Name Stage Failure
failed
test Test
----------------------------------------------------------------------
Ran 2 tests in 0.005s

FAILED (errors=1)
Test directory: testdata/7243fcc7-0632-450b-b4ad-8c2fcc89f4c8-test_default_config_json.py/
make: *** [Makefile:24: test] Error 10
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1