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const en = require('../app/i18n/en.json')
const { exec } = require('child_process')
// Use this array for keys that for whatever reason aren't greppable so they
// don't hold your test suite hostage by always failing.
const EXCEPTIONS = [
// "welcomeScreen.readyForLaunch",
]
function iterate(obj, stack, array) {
for (const property in obj) {
if (Object.prototype.hasOwnProperty.call(obj, property)) {
if (typeof obj[property] === 'object') {
iterate(obj[property], `${stack}.${property}`, array)
} else {
array.push(`${stack.slice(1)}.${property}`)
}
}
}
return array
}
/**
* This tests your codebase for missing i18n strings so you can avoid error strings at render time
*
* It was taken from https://gist.github.com/Michaelvilleneuve/8808ba2775536665d95b7577c9d8d5a1
* and modified slightly to account for our Ignite higher order components,
* which take 'tx' and 'fooTx' props.
* The grep command is nasty looking, but it's essentially searching the codebase for 3 things:
*
* tx="*"
* Tx=""
* translate(""
*
* and then grabs the i18n key between the double quotes
*
* This approach isn't 100% perfect. If you are storing your key string in a variable because you
* are setting it conditionally, then it won't be picked up.
*
*/
describe('i18n', () => {
test('There are no missing keys', (done) => {
// Actual command output:
// grep "Tx=\"\S*\"\|tx=\"\S*\"\|translate(\"\S*\"" -ohr './app' | grep -o "\".*\""
const command = `grep "Tx=\\"\\S*\\"\\|tx=\\"\\S*\\"\\|translate(\\"\\S*\\"" -ohr './app' | grep -o "\\".*\\""`
exec(command, (_, stdout) => {
const allTranslationsDefined = iterate(en, '', [])
const allTranslationsUsed = stdout.replace(/"/g, '').split('\n')
allTranslationsUsed.splice(-1, 1)
for (let i = 0; i < allTranslationsUsed.length; i += 1) {
if (!EXCEPTIONS.includes(allTranslationsUsed[i])) {
// You can add keys to EXCEPTIONS (above) if you don't want them included in the test
expect(allTranslationsDefined).toContainEqual(allTranslationsUsed[i])
}
}
done()
})
}, 240000)
})
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