update

spec/package-spec.coffee

@@ -20,8 +20,10 @@ describe "Package", ->
       expect(pack.incompatibleModules[0].path).toBe path.join(packagePath, 'node_modules', 'native-module')
 
     it "utilizes _atomModuleCache to get native modules and skips traversing through submodules", ->
-      packagePath = atom.project.getDirectories()[0]?.resolve('packages/package-with-both-incompatible-and-compatible-native-modules')
+      packagePath = atom.project.getDirectories()[0]?.resolve('packages/package-with-ignored-incompatible-native-module')
       pack = new Package(packagePath)
+      # Since `_atomModuleCache` exists and it doesn't have the record of the
+      # incompatible native module, this package is recognized as compatible.
       expect(pack.isCompatible()).toBe true
 
     it "caches the incompatible native modules in local storage", ->

src/package.coffee

@@ -598,10 +598,10 @@ class Package
     nativeModulePaths = []
 
     if @metadata._atomModuleCache?
-      nativeModuleBindingPaths = @metadata._atomModuleCache.extensions?['.node'] ?[]
+      nativeModuleBindingPaths = @metadata._atomModuleCache.extensions?['.node'] ? []
       for nativeModuleBindingPath in nativeModuleBindingPaths
         # The `.node` file lies in nativeModulePath/build/Release/ folder.
-        nativeModulePath = path.normalize(path.join(path.dirname(nativeModuleBindingPath), '..', '..'))
+        nativeModulePath = path.join(path.dirname(nativeModuleBindingPath), '..', '..')
         nativeModulePaths.push(nativeModulePath) if @isNativeModule(nativeModulePath)
       return nativeModulePaths