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index.test.js
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'use strict'
const test = require('tap').test
const axios = require('axios')
const fastify = require('fastify')
const BPromise = require('bluebird')
const plugin = require('./index.js')
test('should cache the cacheable request', (t) => {
t.plan(6)
const instance = fastify()
instance.register(plugin, {ttl: 1000})
instance.get('/cache', (req, res) => {
res.send({hello: 'world'})
})
instance.listen(0, async (err) => {
if (err) t.threw(err)
instance.server.unref()
const portNum = instance.server.address().port
const address = `http://127.0.0.1:${portNum}/cache`
const [response1, response2] = await BPromise.all([
axios.get(address),
axios.get(address),
])
t.is(response1.status, 200)
t.is(response2.status, 200)
t.is(response1.headers['x-response-cache'], 'miss')
t.is(response2.headers['x-response-cache'], 'hit')
t.deepEqual(response1.data, {hello: 'world'})
t.deepEqual(response2.data, {hello: 'world'})
})
})
test('should not cache the uncacheable request', (t) => {
t.plan(6)
const instance = fastify()
instance.register(plugin, {ttl: 1000})
instance.post('/no-cache', (req, res) => {
res.send({hello: 'world'})
})
instance.listen(0, async (err) => {
if (err) t.threw(err)
instance.server.unref()
const portNum = instance.server.address().port
const address = `http://127.0.0.1:${portNum}/no-cache`
const [response1, response2] = await BPromise.all([
axios.post(address, {}),
axios.post(address, {}),
])
t.is(response1.status, 200)
t.is(response2.status, 200)
t.notOk(response1.headers['x-response-cache'])
t.notOk(response2.headers['x-response-cache'])
t.deepEqual(response1.data, {hello: 'world'})
t.deepEqual(response2.data, {hello: 'world'})
})
})
test('should apply ttl config', (t) => {
t.plan(9)
const instance = fastify()
instance.register(plugin, {ttl: 2000})
instance.get('/ttl', (req, res) => {
res.send({hello: 'world'})
})
instance.listen(0, async (err) => {
if (err) t.threw(err)
instance.server.unref()
const portNum = instance.server.address().port
const address = `http://127.0.0.1:${portNum}/ttl`
const [response1, response2] = await BPromise.all([
axios.get(address),
axios.get(address),
])
await BPromise.delay(3000)
const response3 = await axios.get(address)
t.is(response1.status, 200)
t.is(response2.status, 200)
t.is(response3.status, 200)
t.is(response1.headers['x-response-cache'], 'miss')
t.is(response2.headers['x-response-cache'], 'hit')
t.is(response3.headers['x-response-cache'], 'miss')
t.deepEqual(response1.data, {hello: 'world'})
t.deepEqual(response2.data, {hello: 'world'})
t.deepEqual(response3.data, {hello: 'world'})
})
})
test('should apply additionalCondition config', (t) => {
t.plan(12)
const instance = fastify()
instance.register(plugin, {
additionalCondition: {
headers: ['x-should-applied'],
},
})
instance.get('/headers', (req, res) => {
res.send({hello: 'world'})
})
instance.listen(0, async (err) => {
if (err) t.threw(err)
instance.server.unref()
const portNum = instance.server.address().port
const address = `http://127.0.0.1:${portNum}/headers`
const [response1, response2, response3, response4] = await BPromise.all([
axios.get(address, {
headers: {'x-should-applied': 'yes'},
}),
axios.get(address, {
headers: {'x-should-applied': 'yes'},
}),
axios.get(address, {
headers: {'x-should-applied': 'no'},
}),
axios.get(address),
])
t.is(response1.status, 200)
t.is(response2.status, 200)
t.is(response3.status, 200)
t.is(response4.status, 200)
t.is(response1.headers['x-response-cache'], 'miss')
t.is(response2.headers['x-response-cache'], 'hit')
t.is(response3.headers['x-response-cache'], 'miss')
t.is(response4.headers['x-response-cache'], 'miss')
t.deepEqual(response1.data, {hello: 'world'})
t.deepEqual(response2.data, {hello: 'world'})
t.deepEqual(response3.data, {hello: 'world'})
t.deepEqual(response4.data, {hello: 'world'})
})
})
test('should waiting for cache if multiple same request come in', (t) => {
t.plan(6)
const instance = fastify()
instance.register(plugin, {ttl: 5000})
instance.get('/waiting', async (req, res) => {
await BPromise.delay(3000)
res.send({hello: 'world'})
})
instance.listen(0, async (err) => {
if (err) t.threw(err)
instance.server.unref()
const portNum = instance.server.address().port
const address = `http://127.0.0.1:${portNum}/waiting`
const [response1, response2] = await BPromise.all([
axios.get(address),
axios.get(address),
])
t.is(response1.status, 200)
t.is(response2.status, 200)
t.is(response1.headers['x-response-cache'], 'miss')
t.is(response2.headers['x-response-cache'], 'hit')
t.deepEqual(response1.data, {hello: 'world'})
t.deepEqual(response2.data, {hello: 'world'})
})
})
test('should not waiting for cache due to timeout', (t) => {
t.plan(6)
const instance = fastify()
instance.register(plugin)
instance.get('/abort', async (req, res) => {
await BPromise.delay(2000)
res.send({hello: 'world'})
})
instance.listen(0, async (err) => {
if (err) t.threw(err)
instance.server.unref()
const portNum = instance.server.address().port
const address = `http://127.0.0.1:${portNum}/abort`
const [response1, response2] = await BPromise.all([
axios.get(address),
axios.get(address),
])
t.is(response1.status, 200)
t.is(response2.status, 200)
t.is(response1.headers['x-response-cache'], 'miss')
t.is(response2.headers['x-response-cache'], 'miss')
t.deepEqual(response1.data, {hello: 'world'})
t.deepEqual(response2.data, {hello: 'world'})
})
})