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0d29004723
This was unneeded because we can simply compute the cache key by concatenating the v8 version and the file's contents.
98 lines
3.7 KiB
CoffeeScript
98 lines
3.7 KiB
CoffeeScript
fs = require 'fs'
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path = require 'path'
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Module = require 'module'
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describe "NativeCompileCache", ->
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nativeCompileCache = require '../src/native-compile-cache'
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[fakeCacheStore, cachedFiles] = []
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beforeEach ->
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cachedFiles = []
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fakeCacheStore = jasmine.createSpyObj("cache store", ["set", "get", "has", "delete"])
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fakeCacheStore.has.andCallFake (cacheKey) ->
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fakeCacheStore.get(cacheKey)?
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fakeCacheStore.get.andCallFake (cacheKey) ->
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for entry in cachedFiles by -1
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continue if entry.cacheKey isnt cacheKey
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return entry.cacheBuffer
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return
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fakeCacheStore.set.andCallFake (cacheKey, cacheBuffer) ->
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cachedFiles.push({cacheKey, cacheBuffer})
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nativeCompileCache.setCacheStore(fakeCacheStore)
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nativeCompileCache.setV8Version("a-v8-version")
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nativeCompileCache.install()
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it "writes and reads from the cache storage when requiring files", ->
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fn1 = require('./fixtures/native-cache/file-1')
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fn2 = require('./fixtures/native-cache/file-2')
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expect(cachedFiles.length).toBe(2)
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expect(cachedFiles[0].cacheBuffer).toBeInstanceOf(Uint8Array)
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expect(cachedFiles[0].cacheBuffer.length).toBeGreaterThan(0)
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expect(fn1()).toBe(1)
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expect(cachedFiles[1].cacheBuffer).toBeInstanceOf(Uint8Array)
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expect(cachedFiles[1].cacheBuffer.length).toBeGreaterThan(0)
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expect(fn2()).toBe(2)
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delete Module._cache[require.resolve('./fixtures/native-cache/file-1')]
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fn1 = require('./fixtures/native-cache/file-1')
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expect(cachedFiles.length).toBe(2)
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expect(fn1()).toBe(1)
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describe "when v8 version changes", ->
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it "updates the cache of previously required files", ->
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nativeCompileCache.setV8Version("version-1")
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fn4 = require('./fixtures/native-cache/file-4')
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expect(cachedFiles.length).toBe(1)
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expect(cachedFiles[0].cacheBuffer).toBeInstanceOf(Uint8Array)
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expect(cachedFiles[0].cacheBuffer.length).toBeGreaterThan(0)
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expect(fn4()).toBe("file-4")
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nativeCompileCache.setV8Version("version-2")
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delete Module._cache[require.resolve('./fixtures/native-cache/file-4')]
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fn4 = require('./fixtures/native-cache/file-4')
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expect(cachedFiles.length).toBe(2)
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expect(cachedFiles[1].cacheBuffer).toBeInstanceOf(Uint8Array)
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expect(cachedFiles[1].cacheBuffer.length).toBeGreaterThan(0)
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describe "when a previously required and cached file changes", ->
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beforeEach ->
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fs.writeFileSync path.resolve(__dirname + '/fixtures/native-cache/file-5'), """
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module.exports = function () { return "file-5" }
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"""
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afterEach ->
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fs.unlinkSync path.resolve(__dirname + '/fixtures/native-cache/file-5')
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it "removes it from the store and re-inserts it with the new cache", ->
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fn5 = require('./fixtures/native-cache/file-5')
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expect(cachedFiles.length).toBe(1)
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expect(cachedFiles[0].cacheBuffer).toBeInstanceOf(Uint8Array)
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expect(cachedFiles[0].cacheBuffer.length).toBeGreaterThan(0)
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expect(fn5()).toBe("file-5")
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delete Module._cache[require.resolve('./fixtures/native-cache/file-5')]
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fs.appendFileSync(require.resolve('./fixtures/native-cache/file-5'), "\n\n")
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fn5 = require('./fixtures/native-cache/file-5')
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expect(cachedFiles.length).toBe(2)
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expect(cachedFiles[1].cacheBuffer).toBeInstanceOf(Uint8Array)
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expect(cachedFiles[1].cacheBuffer.length).toBeGreaterThan(0)
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it "deletes previously cached code when the cache is an invalid file", ->
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fakeCacheStore.has.andReturn(true)
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fakeCacheStore.get.andCallFake -> new Buffer("an invalid cache")
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fn3 = require('./fixtures/native-cache/file-3')
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expect(fakeCacheStore.delete).toHaveBeenCalled()
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expect(fn3()).toBe(3)
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