[rm-input-number] 3 - Fix renderer-api tests

[jeremywiebe]

Summary:

This is the third PR of deleting the input-number widget from Perseus. In this one we fix the renderer-api tests. I've taken the opportunity to also migrate the tests to React Testing Library (from enzyme and our home-grown TestUtils).

Note that this PR contains Flow and Jest failures. I am going to fix/resolve these issues over the next few PRs so that each one is smaller and easier to review. The entire stack will only be landed once everything has been fixed and tested.

Previous PRs in stack:

• [rm-input-number] 1 - Replace input-number with numeric-input #430
• [rm-input-number] 2 - Fix renderer-related tests #431

Issue: LC-616

Test plan:

yarn test packages/perseus/src/__tests__/renderer-api_test.jsx

[changeset-bot]

⚠️ No Changeset found

Latest commit: ace162a

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[github-actions]

npm Snapshot: Published

🎉 Good news!! We've packaged up the latest commit from this PR (5039b85) and published it to npm. You
can install it using the tag PR432.

Example:

yarn add @khanacademy/perseus@PR432

[github-actions]

Size Change: 0 B

Total Size: 652 kB

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	38 kB
packages/kmath/dist/es/index.js	4.13 kB
packages/math-input/dist/es/index.js	60.3 kB
packages/perseus-editor/dist/es/index.js	114 kB
packages/perseus-error/dist/es/index.js	705 B
packages/perseus-linter/dist/es/index.js	21.2 kB
packages/perseus/dist/es/index.js	398 kB
packages/pure-markdown/dist/es/index.js	3.65 kB
packages/simple-markdown/dist/es/index.js	12.6 kB

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