Test version refactor : column config and rendering

[kala-moz]

Fixes BUG 2016285

This PR addresses the scalability and maintenance weaknesses of the current test version implementation.

First, an overall test version interface is created in src/common/testVersions/index.ts:

export interface TestVersionStrategy {
  getColumns(isSubtestTable: boolean): TableConfig;
  getAvgValues(result: CombinedResultsItemType): {
    baseAvg: number | null;
    newAvg: number | null;
  };
  renderColumns(result: CombinedResultsItemType): ReactNode;
}

And each test version has their own file with their unique column configuration, for getting the average values, and rendering their specific columns in RevisionRow.tsx:

src/common/testVersions/mannWhitney
src/common/testVersions/studentT

Therefore, adding a new test version would only require creating a unique file for new test version.
example: /testVersions/welch

Now, to get the columns for each test version, we only have to call the registry:

// utils/rowTemplateColumn.ts

import { getColumnsForVersion } from '../common/testVersions';

export const getColumnsConfiguration = (
  isSubtestTable: boolean,
  testVersion: TestVersion,
): TableConfig => getColumnsForVersion(testVersion, isSubtestTable);

Rendering the columns in RevisionRow.tsx is also simplified, removing the conditionals (if (testVersion === MANN_WHITNEY_U))

import { getStrategy } from '../../common/testVersions';
...
 const strategy = getStrategy(testVersion);
 const { baseAvg: baseAvgValue, newAvg: newAvgValue } =
    strategy.getAvgValues(result);
...
return (
...
   {strategy.renderColumns(result)}
...
);
...

This PR is part one of completing the refactor as we still need to expand the test version strategy to handle the unique test version components in the expanded rows. This will be completed in a follow-up PR.

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[codecov]

Codecov Report

❌ Patch coverage is 99.37500% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 96.45%. Comparing base (ba548b6) to head (9e88c57).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/utils/rowTemplateColumns.ts	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1004      +/-   ##
==========================================
- Coverage   96.46%   96.45%   -0.01%     
==========================================
  Files         104      108       +4     
  Lines        3028     3050      +22     
  Branches      694      689       -5     
==========================================
+ Hits         2921     2942      +21     
- Misses        106      107       +1     
  Partials        1        1              

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[gmierz]

Can you add some additional comments about how these types work, and why they exist?