centralize requirements for tests

requirements.txt

@@ -1,7 +1,11 @@
 libusb1 == 1.6.6
-hexdump
-pycrypto
-tqdm
+numpy==1.17.2
+hexdump>=3.3
+pycrypto==2.6.1
+tqdm>=4.14.0
 nose
 parameterized
 requests
+flake8==3.7.8
+pylint==2.4.2
+cffi==1.11.4

tests/language/Dockerfile

@@ -14,5 +14,4 @@ RUN pyenv install 3.7.3
 RUN pyenv global 3.7.3
 RUN pyenv rehash
 
-COPY tests/safety/requirements.txt /panda/tests/safety/requirements.txt
 COPY . /panda

tests/linter_python/Dockerfile

@@ -14,6 +14,6 @@ RUN pyenv install 3.7.3
 RUN pyenv global 3.7.3
 RUN pyenv rehash
 
-COPY tests/linter_python/requirements.txt requirements.txt
-RUN pip install -r requirements.txt
+COPY requirements.txt /tmp/
+RUN pip install -r /tmp/requirements.txt
 COPY . /panda

tests/misra/Dockerfile

@@ -1,6 +1,6 @@
 FROM ubuntu:16.04
 
 RUN apt-get update && apt-get install -y make python python-pip git
-COPY tests/safety/requirements.txt /panda/tests/safety/requirements.txt
-RUN pip install -r /panda/tests/safety/requirements.txt
+COPY requirements.txt /tmp/
+RUN pip install -r /tmp/requirements.txt
 COPY . /panda

tests/safety/Dockerfile

@@ -14,6 +14,7 @@ RUN pyenv install 3.7.3
 RUN pyenv global 3.7.3
 RUN pyenv rehash
 
-COPY tests/safety/requirements.txt requirements.txt
-RUN pip install -r requirements.txt
+COPY requirements.txt /tmp/
+RUN pip install -r /tmp/requirements.txt
+
 COPY . /panda