Added end-to-end tests for all pipelines
What does this merge request do and why?
End-to-end tests for all pipelines.
This MR is the first iteration of end-to-end tests. In this MR, we execute the whole pipeline in tests, so it is easier to catch bugs.
In this first iteration, the tests will call third-party APIs and will read from and write to BigQuery tables. Because of this, we do not run the end-to-end tests in CI. In later iterations, we should think about mocking those components so that the tests doesn't depend on other APIs and credentials.
Ref: #205
How to set up and validate locally
Numbered steps to set up and validate the change are strongly suggested.
Merge request checklist
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I've ran the affected pipeline(s) to validate that nothing is broken. -
Tests added for new functionality. If not, please raise an issue to follow up. -
Documentation added/updated, if needed.
Edited by Hongtao Yang