Simplify requirements

Also adds missing `pytest-cov` to `test`

.github/workflows/python-package.yml

@@ -26,8 +26,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        python -m pip install flake8
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
@@ -36,7 +35,7 @@ jobs:
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Interactive install
       run: |
-        python -m pip install -e .
+        python -m pip install -e .[test]
     - name: Test with pytest
       env:
         HORNET_PHPSESSID: ${{secrets.HORNET_PHPSESSID}}

pyproject.toml

@@ -37,7 +37,8 @@ packages = [
 [project.optional-dependencies]
 test = [
     "pytest",
-    "pytest-asyncio"
+    "pytest-asyncio",
+    "pytest-cov"
 ]
 
 [project.urls]