code-server/test/unit/routes/login.test.ts

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import { RateLimiter } from "../../../src/node/routes/login"
describe("login", () => {
describe("RateLimiter", () => {
it("should allow one try ", () => {
const limiter = new RateLimiter()
expect(limiter.removeToken()).toBe(true)
})
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it("should pull tokens from both limiters (minute & hour)", () => {
const limiter = new RateLimiter()
// Try twice, which pulls two from the minute bucket
limiter.removeToken()
limiter.removeToken()
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// Check that we can still try
// which should be true since there are 12 remaining in the hour bucket
expect(limiter.canTry()).toBe(true)
expect(limiter.removeToken()).toBe(true)
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})
it("should not allow more than 14 tries in less than an hour", () => {
const limiter = new RateLimiter()
// The limiter allows 2 tries per minute plus 12 per hour
// so if we run it 15 times, 14 should return true and the last
// should return false
for (let i = 1; i <= 14; i++) {
expect(limiter.removeToken()).toBe(true)
}
expect(limiter.canTry()).toBe(false)
expect(limiter.removeToken()).toBe(false)
})
})
})