improved test coverage with findRenderedComponentWithType test #21309
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Summary
I wanted make my first contribution to an open source project by adding a simple test to improve test coverage.
ReactTestUtils.js was missing coverage on lines 292-294.
Test Plan
Added a new test to verify that the findRenderedComponentWithType method was indeed finding the rendered component with the given type.
yarn test reactutils-test --coverage
Was able to compare test results and verify that the test was passed in addition to improving test coverage.