These changes should be merged to the Chai ( https://github.com/chaijs/chai/ ) itself. - [Show diff when assertion failure of assert.deepEqual · 83ca64b · groonga/gcs](https://github.com/groonga/gcs/commit/83ca64b52b98576b6f551eb3a552d5f99c33dd90) - [Don't sort array when stringify · 8e46414 · groonga/gcs](https://github.com/groonga/gcs/commit/8e46414279fcb92dbd7f18a854f0f1399517c0ee)
These changes should be merged to the Chai ( https://github.com/chaijs/chai/ ) itself.