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import { warnOnce } from 'next/dist/build/output/log'
describe('build/output/log', () => {
it('warnOnce', () => {
const original = console.warn
try {
const messages = []
console.warn = (m: any) => messages.push(m)
warnOnce('test')
expect(messages.length).toEqual(1)
warnOnce('test again')
expect(messages.length).toEqual(2)
warnOnce('test', 'more')
expect(messages.length).toEqual(3)
warnOnce('test')
expect(messages.length).toEqual(3)
warnOnce('test again')
expect(messages.length).toEqual(3)
warnOnce('test', 'more')
expect(messages.length).toEqual(3)
warnOnce('test', 'should', 'add', 'another')
expect(messages.length).toEqual(4)
} finally {
console.warn = original
}
})
})
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