private static Response.Builder fakeErrorResponse(
      int statusCode, String httpMessage, String jsonErrorValue) {
    return fakeResponse(statusCode, httpMessage, String.format("{ \"error\": %s ", jsonErrorValue));
  }
This tests the MicrosoftMediaImporter. As of now, it only tests the number of requests called.
More tests are needed to test request bodies and parameters.
extensions/data-transfer/portability-data-transfer-microsoft/src/test/java/org/datatransferproject/transfer/microsoft/media/MicrosoftMediaImporterTest.java