validate breakpoint schema in tests
validate breakpoint schema in tests

DominicKramer/cloud-debug-nodejs,googleapis/cloud-debug-nodejs,matthewloring/cloud-debug-nodejs,ofrobots/cloud-debug-nodejs,googleapis/cloud-debug-nodejs,DominicKramer/cloud-debug-nodejs,matthewloring/cloud-debug-nodejs,ofrobots/cloud-debug-nodejs,ofrobots/cloud-debug-nodejs,googleapis/cloud-debug-nodejs,matthewloring/cloud-debug-nodejs,DominicKramer/cloud-debug-nodejs