Repository: create-react-app
Issue: Default TypeScript CRA installation doesn't run Jest test with npm run test
Labels: needs triage,issue: bug report

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### Describe the bug

# Jest test run finds no test

## To reproduce

1. create app

    ```
    npx create-react-app my-app --template typescript
    ```

1. run tests

    ```
    cd my-app && npm run test
    ```

## Run results in terminal

No tests found related to files changed since last commit.
Press `a` to run all tests, or run Jest with `--watchAll`.

Watch Usage
 › Press a to run all tests.
 › Press f to run only failed tests.
 › Press q to quit watch mode.
 › Press p to filter by a filename regex pattern.
 › Press t to filter by a test name regex pattern.
 › Press Enter to trigger a test run.

 ## Fix

 To fix this issue, create `__tests__` directory under `src` and move `App.test.tsx` into that directory.

### Did you try recovering your dependencies?

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No this was a default ts install. 

### Which terms did you search for in User Guide?

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  https://facebook.github.io/create-react-app/

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Your original sample should work. 

### Environment

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Tried mac os and devcontainer (linux).

### Steps to reproduce

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1. create app

    ```
    npx create-react-app my-app --template typescript
    ```

1. run tests

    ```
    cd my-app && npm run test
    ```

### Expected behavior

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App.test.tsx file is found and its test is run. 

### Actual behavior

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```
No tests found related to files changed since last commit.
Press `a` to run all tests, or run Jest with `--watchAll`.

Watch Usage
 › Press a to run all tests.
 › Press f to run only failed tests.
 › Press q to quit watch mode.
 › Press p to filter by a filename regex pattern.
 › Press t to filter by a test name regex pattern.
 › Press Enter to trigger a test run.
```

### Reproducible demo

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[Repo with example](https://github.com/dfberry/create-react-app-typescript-jest-issue-1)

### Fix

To fix this issue, create `__tests__` directory under `src` and move `App.test.tsx` into that directory. Fix test file import statement to the correct location of App in parent dir.

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