Introduce NativeCompileCache

spec/fixtures/native-cache/file-1.js

@@ -0,0 +1 @@
+module.exports = function () { return 1; }

spec/fixtures/native-cache/file-2.js

@@ -0,0 +1 @@
+module.exports = function () { return 2; }

spec/native-compile-cache-spec.coffee

@@ -0,0 +1,37 @@
+describe "NativeCompileCache", ->
+  nativeCompileCache = require '../src/native-compile-cache'
+  [fakeCacheStorage, cachedFiles] = []
+
+  beforeEach ->
+    cachedFiles = []
+    fakeCacheStorage = jasmine.createSpyObj("cache storage", ["set", "get"])
+    nativeCompileCache.setCacheStorage(fakeCacheStorage)
+    nativeCompileCache.install()
+
+  it "writes and reads from the cache storage when requiring files", ->
+    fakeCacheStorage.get.andReturn(null)
+    fakeCacheStorage.set.andCallFake (filename, cacheBuffer) ->
+      cachedFiles.push({filename, cacheBuffer})
+
+    fn1 = require('./fixtures/native-cache/file-1')
+    fn2 = require('./fixtures/native-cache/file-2')
+
+    expect(cachedFiles.length).toBe(2)
+
+    expect(cachedFiles[0].filename).toBe(require.resolve('./fixtures/native-cache/file-1'))
+    expect(cachedFiles[0].cacheBuffer).toBeInstanceOf(Uint8Array)
+    expect(cachedFiles[0].cacheBuffer.length).toBeGreaterThan(0)
+    expect(fn1()).toBe(1)
+
+    expect(cachedFiles[1].filename).toBe(require.resolve('./fixtures/native-cache/file-2'))
+    expect(cachedFiles[1].cacheBuffer).toBeInstanceOf(Uint8Array)
+    expect(cachedFiles[1].cacheBuffer.length).toBeGreaterThan(0)
+    expect(fn2()).toBe(2)
+
+    fakeCacheStorage.get.andReturn(cachedFiles[0].cacheBuffer)
+    fakeCacheStorage.set.reset()
+
+    fn1 = require('./fixtures/native-cache/file-1')
+
+    expect(fakeCacheStorage.set).not.toHaveBeenCalled()
+    expect(fn1()).toBe(1)