Unit tests error because missing import AddonSignals

[tomjshore]

I'm submitting a ...

• [x] bug report
• [ ] feature request
• [ ] support request

General information

I'm trying to run the unit tests for this project. 4 tests have errors because I'm missing the module AddonSignals

Prerequisites

• [x] Are you running the latest version?

Description

git clone the project sudo pip2 install -r requirements.txt python2 -m nose resources/test/

Four tests errored because of missing module. Has it be missed from the requirements.txt or do I have to install it another way?

Context (Environment)

Installation

N/A

• [ ] I installed the plugin via zip from the Releases page
• [ ] I´m using the Netflix Repo
• [ ] I´m using a different source (Please tell which)

Operating System

• [x] Linux (x86/x64)
• [ ] OSX (x86/x64)
• [ ] Windows (x86/x64)
• [ ] Linux (ARM)
• [ ] Android

Additional informatin on the environment

uname -a Linux arch 5.2.8-arch1-1-ARCH #1 SMP PREEMPT Fri Aug 9 21:36:07 UTC 2019 x86_64 GNU/Linux

Debug log

https://pastebin.com/4e1Kqbdc