Migrate tests to Jest

[jackocnr]

It's time to migrate to a modern testing setup! I've settled on Jest/testing-library and I've got a few Jest tests up and running (in /tests), but there are still a lot of old Jasmine tests to migrate over (in /src/spec). I'll keep track of the migration here. I would welcome pull requests to move more over. Thanks! 🙏

Core

• closeCountryDropdownEvent
• countryChangeEvent
• countrySearch
• dropdownShortcuts
• initialValues
• multipleInstances
• openCountryDropdownEvent (new)
• usingDropdown
• usingInput

Methods

• destroy
• getExtension
• getNumber
• getNumberType
• getSelectedCountryData
• getValidationError
• isValidNumber
• isValidNumberPrecise
• setCountry
• setNumber
• setPlaceholderNumberType

Options

• allowDropdown
• autoPlaceholder
• containerClass
• countryOrder (new)
• customPlaceholder
• dropdownContiner
• excludeCountries
• fixDropdownWidth (new)
• formatAsYouType (new)
• formatOnDisplay
• geoIpLookup
• hiddenInput
• i18n (new)
• initialCountry
• nationalMode
• onlyCountries
• placeholderNumberType
• showFlags (new)
• separateDialCode
• strictMode
• useFullscreenPopup
• utilsScript
• validationNumberType (new)

Static

• defaults
• getCountryData
• loadUtils