Feature streaming enhancments

[ronanstokes-db]

Proposed changes

Added support for rate-micro-batch source
Added ageLimit option for rate source
More extensive testing for streaming scenarios

Note: still work in progress - PR opened to validate unit tests on GitHub build runner

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Further comments

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[lgtm-com]

This pull request introduces 1 alert when merging 51adf39 into 23a83f5 - view on LGTM.com

new alerts:

• 1 for Unused local variable

[lgtm-com]

This pull request introduces 1 alert when merging 46f8406 into 83c5ed4 - view on LGTM.com

new alerts:

• 1 for Unused local variable

[lgtm-com]

This pull request introduces 1 alert when merging e0f7887 into d6b1799 - view on LGTM.com

new alerts:

• 1 for Unused local variable

[ronanstokes-db]

Need to update test process to test on specific Databricks builds or open source Spark equivalent

[lgtm-com]

This pull request introduces 1 alert when merging 2b3060e into 109707e - view on LGTM.com

new alerts:

• 1 for Unused local variable

[lgtm-com]

This pull request introduces 1 alert when merging 1b91312 into 981a5a4 - view on LGTM.com

new alerts:

• 1 for Unused local variable

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[ronanstokes-db]

Note v0.3.1 is the release for the target version to incorporate these changes.

[codecov]

Codecov Report

Merging #127 (ab5908a) into master (bc80ef3) will decrease coverage by 1.73%.
The diff coverage is 85.49%.

❗ Current head ab5908a differs from pull request most recent head 041b3dc. Consider uploading reports for the commit 041b3dc to get more accurate results

@@            Coverage Diff             @@
##           master     #127      +/-   ##
==========================================
- Coverage   91.97%   90.25%   -1.73%     
==========================================
  Files          23       23              
  Lines        2680     2637      -43     
  Branches      452      438      -14     
==========================================
- Hits         2465     2380      -85     
- Misses        128      165      +37     
- Partials       87       92       +5     

Impacted Files	Coverage Δ
dbldatagen/data_generator.py	84.79% <82.00%> (-0.32%)	⬇️
dbldatagen/enhanced_event_time.py	96.77% <96.77%> (ø)

... and 12 files with indirect coverage changes

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