test: fix the system tests with cleanup (#281)

Author: JustinBeckwith

handwritten/logging/package.json

@@ -54,6 +54,7 @@
     "test-no-cover": "mocha build/test/*.js",
     "test": "npm run cover",
     "docs": "jsdoc -c .jsdoc.js",
+    "presystem-test": "npm run compile",
     "system-test": "mocha build/system-test --timeout 600000",
     "samples-test": "cd samples/ && npm test && cd ../",
     "generate-scaffolding": "repo-tools generate all && repo-tools generate lib_samples_readme -l samples/ --config ../.cloud-repo-tools.json",

handwritten/logging/system-test/logging.js

@@ -56,7 +56,7 @@ describe('Logging', () => {
 
   after(async () => {
     await Promise.all(
-        [deleteBuckets, deleteDatasets, deleteTopics, deleteSinks]);
+        [deleteBuckets(), deleteDatasets(), deleteTopics(), deleteSinks()]);
 
     async function deleteBuckets() {
       const [buckets] = await storage.getBuckets({