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✅ Test cache invalidation

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This commit is contained in:
Antonio Scandurra
2015-12-11 15:37:56 +01:00
parent 8a1984d1b7
commit 1f5473b2dd
1 changed files with 37 additions and 7 deletions
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44
spec/native-compile-cache-spec.coffee
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@@ -1,3 +1,6 @@
fs = require 'fs'
path = require 'path'
describe "NativeCompileCache", ->
nativeCompileCache = require '../src/native-compile-cache'
[fakeCacheStore, cachedFiles] = []
@@ -8,15 +11,30 @@ describe "NativeCompileCache", ->
nativeCompileCache.setCacheStore(fakeCacheStore)
nativeCompileCache.install()
fs.writeFileSync path.resolve('./spec/fixtures/native-cache/file-4'), """
module.exports = function () { return "file-4" }
"""
afterEach ->
fs.unlinkSync path.resolve('./spec/fixtures/native-cache/file-4')
it "writes and reads from the cache storage when requiring files", ->
fakeCacheStore.has.andReturn(false)
fakeCacheStore.has.andCallFake (cacheKey, invalidationKey) ->
fakeCacheStore.get(cacheKey, invalidationKey)?
fakeCacheStore.get.andCallFake (cacheKey, invalidationKey) ->
for entry in cachedFiles
continue if entry.cacheKey isnt cacheKey
continue if entry.invalidationKey isnt invalidationKey
return entry.cacheBuffer
return
fakeCacheStore.set.andCallFake (cacheKey, invalidationKey, cacheBuffer) ->
cachedFiles.push({cacheKey, cacheBuffer})
cachedFiles.push({cacheKey, invalidationKey, cacheBuffer})
fn1 = require('./fixtures/native-cache/file-1')
fn2 = require('./fixtures/native-cache/file-2')
fn4 = require('./fixtures/native-cache/file-4')
expect(cachedFiles.length).toBe(2)
expect(cachedFiles.length).toBe(3)
expect(cachedFiles[0].cacheKey).toBe(require.resolve('./fixtures/native-cache/file-1'))
expect(cachedFiles[0].cacheBuffer).toBeInstanceOf(Uint8Array)
@@ -28,14 +46,26 @@ describe "NativeCompileCache", ->
expect(cachedFiles[1].cacheBuffer.length).toBeGreaterThan(0)
expect(fn2()).toBe(2)
fakeCacheStore.has.andReturn(true)
fakeCacheStore.get.andReturn(cachedFiles[0].cacheBuffer)
fakeCacheStore.set.reset()
expect(cachedFiles[2].cacheKey).toBe(require.resolve('./fixtures/native-cache/file-4'))
expect(cachedFiles[2].cacheBuffer).toBeInstanceOf(Uint8Array)
expect(cachedFiles[2].cacheBuffer.length).toBeGreaterThan(0)
expect(fn4()).toBe("file-4")
fs.appendFileSync(require.resolve('./fixtures/native-cache/file-4'), "\n")
delete require('module')._cache[require.resolve('./fixtures/native-cache/file-1')]
delete require('module')._cache[require.resolve('./fixtures/native-cache/file-4')]
fn1 = require('./fixtures/native-cache/file-1')
fn4 = require('./fixtures/native-cache/file-4')
# file content has changed, ensure we create a new cache entry
expect(cachedFiles.length).toBe(4)
expect(cachedFiles[3].cacheKey).toBe(require.resolve('./fixtures/native-cache/file-4'))
expect(cachedFiles[3].invalidationKey).not.toBe(cachedFiles[2].invalidationKey)
expect(cachedFiles[3].cacheBuffer).toBeInstanceOf(Uint8Array)
expect(cachedFiles[3].cacheBuffer.length).toBeGreaterThan(0)
expect(fakeCacheStore.set).not.toHaveBeenCalled()
expect(fn1()).toBe(1)
expect(fn4()).toBe("file-4")
it "deletes previously cached code when the cache is an invalid file", ->
fakeCacheStore.has.andReturn(true)