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@gooddata/sdk-backend-mockingbird

8.0.0 • Public • Published

Static / Mock implementation of Analytical Backend SPI

This package contains test support and mock implementations of various concepts in the sdk-backend-spi.

Dummy Backend

This implementation of Analytical Backend SPI focuses on the execution branch of the SPI; it creates and sets up Prepared Execution just like any other implementation would. When the prepared execution is started (execute()) it either (based on configuration):

  • Returns an empty result which only contains execution definition and has the result dimensions empty. Reading any data views from this result will return empty data views.

  • Returns an empty result which only contains execution definition and has the result dimensions empty. Reading any data views from this result will yield NoDataError

    (Note: this is closer to how real backend implementations behave)

Purpose:

  • use in unit tests which need to verify whether the execution is prepared correctly for instance functions which transform props => prepared execution

  • use in unit tests which need to verify whether code works correctly with execution definition stored in result / data view / data view facade

  • use in component-level 'smoke tests' (e.g. something renders or happens, we don't care about the details)

Legacy Recorded Backend

This implementation of Analytical Backend SPI for serves results recorded on the disk. It is called legacy, because it works with recordings that were created pre-8.0, using an unknown method and are tightly coupled with Execute AFM types themselves.

This legacy implementation was essential during the initial refactoring of the SDK to quickly get the existing tests green. However, it should not be used in any new tests and should not be enhanced any further.

Instead, our efforts need to be focused on enhancing the non-legacy recorded backend and having all tests (eventually also old tests) run against the reference workspace.

Composite Backend

This implementation of Analytical Backend SPI allows merging multiple analytical backend instances into one. Each component declares what for what workspace it has the data and the composite delegates all requests for that workspace into the respective component.

License

(C) 2020 GoodData Corporation

This project is under MIT License. See LICENSE.

Keywords

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Install

npm i @gooddata/sdk-backend-mockingbird

DownloadsWeekly Downloads

2,908

Version

8.0.0

License

MIT

Unpacked Size

142 kB

Total Files

57

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