mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-23 09:52:26 +01:00
139 lines
3.7 KiB
JavaScript
139 lines
3.7 KiB
JavaScript
import assert from 'assert'
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import nock from 'nock'
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import sinon from 'sinon'
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import proxyquire from 'proxyquire'
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const fakeLocalStorageHelpers = {}
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const fetchWithCache = proxyquire('./fetch-with-cache', {
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'../../../lib/local-storage-helpers': fakeLocalStorageHelpers,
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}).default
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describe('Fetch with cache', function () {
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beforeEach(function () {
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fakeLocalStorageHelpers.loadLocalStorageData = sinon.stub()
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fakeLocalStorageHelpers.saveLocalStorageData = sinon.stub()
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})
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afterEach(function () {
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sinon.restore()
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nock.cleanAll()
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})
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it('fetches a url', async function () {
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nock('https://fetchwithcache.metamask.io')
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.get('/price')
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.reply(200, '{"average": 1}')
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const response = await fetchWithCache(
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'https://fetchwithcache.metamask.io/price',
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)
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assert.deepEqual(response, {
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average: 1,
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})
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})
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it('returns cached response', async function () {
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nock('https://fetchwithcache.metamask.io')
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.get('/price')
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.reply(200, '{"average": 2}')
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fakeLocalStorageHelpers.loadLocalStorageData.returns({
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'https://fetchwithcache.metamask.io/price': {
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cachedResponse: { average: 1 },
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cachedTime: Date.now(),
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},
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})
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const response = await fetchWithCache(
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'https://fetchwithcache.metamask.io/price',
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)
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assert.deepEqual(response, {
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average: 1,
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})
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})
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it('fetches URL again after cache refresh time has passed', async function () {
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nock('https://fetchwithcache.metamask.io')
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.get('/price')
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.reply(200, '{"average": 3}')
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fakeLocalStorageHelpers.loadLocalStorageData.returns({
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'https://fetchwithcache.metamask.io/cached': {
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cachedResponse: { average: 1 },
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cachedTime: Date.now() - 1000,
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},
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})
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const response = await fetchWithCache(
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'https://fetchwithcache.metamask.io/price',
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{},
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{ cacheRefreshTime: 123 },
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)
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assert.deepEqual(response, {
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average: 3,
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})
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})
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it('should abort the request when the custom timeout is hit', async function () {
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nock('https://fetchwithcache.metamask.io')
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.get('/price')
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.delay(100)
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.reply(200, '{"average": 4}')
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await assert.rejects(
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() =>
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fetchWithCache(
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'https://fetchwithcache.metamask.io/price',
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{},
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{ timeout: 20 },
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),
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{ name: 'AbortError', message: 'Aborted' },
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)
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})
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it('throws when the response is unsuccessful', async function () {
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nock('https://fetchwithcache.metamask.io')
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.get('/price')
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.reply(500, '{"average": 6}')
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await assert.rejects(() =>
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fetchWithCache('https://fetchwithcache.metamask.io/price'),
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)
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})
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it('throws when a POST request is attempted', async function () {
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nock('https://fetchwithcache.metamask.io')
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.post('/price')
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.reply(200, '{"average": 7}')
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await assert.rejects(() =>
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fetchWithCache('https://fetchwithcache.metamask.io/price', {
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method: 'POST',
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}),
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)
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})
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it('throws when the request has a truthy body', async function () {
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nock('https://fetchwithcache.metamask.io')
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.get('/price')
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.reply(200, '{"average": 8}')
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await assert.rejects(() =>
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fetchWithCache('https://fetchwithcache.metamask.io/price', { body: 1 }),
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)
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})
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it('throws when the request has an invalid Content-Type header', async function () {
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nock('https://fetchwithcache.metamask.io')
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.get('/price')
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.reply(200, '{"average": 9}')
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await assert.rejects(
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() =>
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fetchWithCache('https://fetchwithcache.metamask.io/price', {
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headers: { 'Content-Type': 'text/plain' },
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}),
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{ message: 'fetchWithCache only supports JSON responses' },
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)
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})
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})
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