Unit test suite is failing

[blimmer]

I was going to rework this project to use CircleCI instead of CodeShip, but the test suite is falling locally, as well as in CI.

The jest-dynamodb package is failing with this issue: shelfio/jest-dynamodb#212. But it's fairly out-of-date, so I couldn't easily try the workaround described in that issue.

I also tried migrating to https://github.com/freshollie/jest-dynalite, but was running into issues with that, as well:

 FAIL  src/test/dynamo/Beyonce.test.ts
  ● Beyonce › should put and delete in the same transaction

    Failed: [UnknownOperationException: null]

      111 |   })
      112 |
    > 113 |   it("should put and delete in the same transaction", async () => {
          |   ^
      114 |     await testPutAndDeleteItemInTransaction()
      115 |   })
      116 |

      at Env.it (node_modules/jest-jasmine2/build/jasmineAsyncInstall.js:95:24)
      at Suite.<anonymous> (src/test/dynamo/Beyonce.test.ts:113:3)
      at Object.<anonymous> (src/test/dynamo/Beyonce.test.ts:18:1)