Improved error handling for bad responses

Added unit tests
Updated coverage config
Bumped minor dependencies

.github/workflows/release.yml

@@ -29,9 +29,9 @@ jobs:
       - run: npm run test:unit:local
       - name: Upload coverage report to CodeCov
         if: ${{ matrix.node-version == '16.x' }}
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v3
         with:
-          file: coverage/clover.xml # optional
+          files: coverage/clover.xml # optional
           fail_ci_if_error: true # optional (default = false)
           verbose: true
       - name: Publish to NPM

index.js

@@ -248,6 +248,9 @@ class CerberusClient {
     let response
     try {
       response = await this._executeRequest(Object.assign({}, { json: true }, requestConfig))
+      if (!response) {
+        throw new Error('No response was returned from Cerberus')
+      }
     } catch (error) {
       const msg = 'There was an error executing a call to Cerberus.\nmsg: \'' + error.message + '\''
       this._log(msg)