Simplify Test Runs

This patch simplifies the  testing infrastructure by moving all
dependencies into a single requirements file instead of installing them
each separately.

.github/requirements.txt

@@ -1,2 +1,6 @@
+bandit
+coverage
+coveralls
+flake8
+mock
 selenium
-urllib3

.github/workflows/test.yml

@@ -31,11 +31,14 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
 
-    - name: install dependencies
-      run: |
-        pip install flake8 bandit mock coverage coveralls
-        pip install -r requirements.txt
-        npm ci
+    - name: install Python dependencies
+      run: pip install -r requirements.txt
+
+    - name: install JavaScript dependencies
+      run: npm ci
+
+    - name: install test dependencies
+      run: pip install -r .github/requirements.txt
 
     - name: lint code
       run: make lint
@@ -48,9 +51,7 @@ jobs:
         gunzip .github/test.db.gz
         mv .github/test.db pyca.db
         ./start.sh ui &
-
-    - name: install selenium
-      run: pip install -r .github/requirements.txt
+        sleep 2
 
     - name: run user interface integration tests
       run: ./.github/selenium-tests

Makefile

@@ -3,7 +3,7 @@ all: lint test
 export DOCKER_BUILDKIT=1
 
 lint:
-	@flake8 $$(find pyca tests -name '*.py')
+	@flake8 $$(find pyca tests -name '*.py') .github/selenium-tests
 	@bandit pyca tests
 	@npm run eslint