ci: spit out junit reports from the interop tests

.circleci/config.yml

@@ -160,15 +160,26 @@ jobs:
             - v1-interop-{{ checksum "~/ipfs/go-ipfs/interop/package-lock.json" }}
             - v1-interop-
       - run:
-          command: npm install
+          name: Installing dependencies
+          command: |
+            npm install
+            npm install mocha-junit-reporter
           working_directory: ~/ipfs/go-ipfs/interop
       - save_cache:
           key: v1-interop-{{ checksum "~/ipfs/go-ipfs/interop/package-lock.json" }}
           paths:
             - ~/ipfs/go-ipfs/interop/node_modules
       - run:
-          command: npm run test:node
+          name: Running tests
+          command: |
+            mkdir -p /tmp/test-results/interop/
+            export MOCHA_FILE="$(mktemp /tmp/test-results/interop/unit.XXXXXX.xml)"
+            node_modules/.bin/mocha --reporter=mocha-junit-reporter 'test/node.js'
           working_directory: ~/ipfs/go-ipfs/interop
+          environment:
+            IPFS_REUSEPORT: false
+      - store_test_results:
+          path: /tmp/test-results
   go-ipfs-api:
     executor: golang
     steps: