The method `formatted_heading_price` depends on the current locale. When
we make a request to `visit budgets_path locale: :es`, the request
modifies `I18n.locale` as well.
However, if we use JavaScript tests, the process running the test is
different than the process handling the request, and so the change in
`I18n.locale` does not affect the test.
Checking against the actual value we expect makes the test work with and
without JavaScript.
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