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MARC record test loads through the data import ui and cli as of early June 2019. At this point, the cli is available in release 2.1; the ability to use the data import UI to do test loads is available via https://folio-testing.aws.indexdata.com/
Data Import UI
Instructions and explanations for using the data import UI to test loading of MARC records can be found in the Data Import Temporary MARC Bib Load Button powerpoint presentation created by Ann-Marie Breaux, the data import product owner. If you wish to test loading MARC bib records through the UI, follow these steps:
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At this point, you should review the Data Import Temporary MARC Bib Load Button powerpoint for explanations and next steps.
Data Import Command Line Interface (cli)
The instructions for using the cli to the data import tool can be found at: https://github.com/folio-org/mod-source-record-manager. The relevant section begins on that page at Data Import Workflow
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