chore: improve test coverage

[mhamilton723]

Related Issues/PRs

#xxx

What changes are proposed in this pull request?

Briefly describe the changes included in this Pull Request.

How is this patch tested?

• I have written tests (not required for typo or doc fix) and confirmed the proposed feature/bug-fix/change works.

Does this PR change any dependencies?

• No. You can skip this section.
• Yes. Make sure the dependencies are resolved correctly, and list changes here.

Does this PR add a new feature? If so, have you added samples on website?

• No. You can skip this section.
• Yes. Make sure you have added samples following below steps.

1. Find the corresponding markdown file for your new feature in website/docs/documentation folder.
   Make sure you choose the correct class estimators/transformers and namespace.
2. Follow the pattern in markdown file and add another section for your new API, including pyspark, scala (and .NET potentially) samples.
3. Make sure the DocTable points to correct API link.
4. Navigate to website folder, and run yarn run start to make sure the website renders correctly.
5. Don't forget to add <!--pytest-codeblocks:cont--> before each python code blocks to enable auto-tests for python samples.
6. Make sure the WebsiteSamplesTests job pass in the pipeline.

AB#1946165

[mhamilton723]

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[github-actions]

Hey @mhamilton723 👋!
Thank you so much for contributing to our repository 🙌.
Someone from SynapseML Team will be reviewing this pull request soon.
We appreciate your patience and contributions 💯!

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[codecov-commenter]

Codecov Report

Merging #1631 (fa5cd8c) into master (e700fd1) will decrease coverage by 1.60%.
The diff coverage is 98.52%.

@@            Coverage Diff             @@
##           master    #1631      +/-   ##
==========================================
- Coverage   83.24%   81.64%   -1.61%     
==========================================
  Files         287      287              
  Lines       15080    15104      +24     
  Branches      743      756      +13     
==========================================
- Hits        12554    12331     -223     
- Misses       2526     2773     +247     

Impacted Files	Coverage Δ
...azure/synapse/ml/featurize/text/PageSplitter.scala	100.00% <ø> (+4.65%)	⬆️
...ft/azure/synapse/ml/cognitive/ComputerVision.scala	50.83% <50.00%> (-21.02%)	⬇️
...se/ml/cognitive/MultivariateAnomalyDetection.scala	88.70% <100.00%> (+3.22%)	⬆️
...ft/azure/synapse/ml/codegen/DefaultParamInfo.scala	96.77% <100.00%> (+1.42%)	⬆️
...microsoft/azure/synapse/ml/codegen/Wrappable.scala	100.00% <100.00%> (ø)
...ure/synapse/ml/recommendation/RankingAdapter.scala	96.61% <100.00%> (+11.42%)	⬆️
...zure/synapse/ml/stages/StratifiedRepartition.scala	96.87% <100.00%> (+6.25%)	⬆️
...om/microsoft/azure/synapse/ml/onnx/ONNXModel.scala	79.00% <100.00%> (+1.61%)	⬆️
...azure/synapse/ml/vw/VowpalWabbitInteractions.scala	94.28% <100.00%> (+2.85%)	⬆️
...e/synapse/ml/cognitive/FormRecognizerSchemas.scala	7.69% <0.00%> (-76.93%)	⬇️
... and 87 more

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[mhamilton723]

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[mhamilton723]

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[mhamilton723]

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