Use a requirement file for test requirements

.github/workflows/core.yml

@@ -24,7 +24,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install ipython nbval pytest-xdist cython wheel
+        pip install -r pythran/tests/requirements.txt
+        pip install pytest-xdist
         sudo apt install libopenblas-dev ${{ matrix.cpp-version }}
         if test ${{ matrix.python-version }} != 'pypy-3.9'; then pip install scipy ; fi
     - name: Setup

.github/workflows/doc.yml

@@ -24,7 +24,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install ipython nbval pytest-xdist cython scipy wheel
+        pip install -r pythran/tests/requirements.txt scipy
+        pip install pytest-xdist
         sudo apt install libopenblas-dev ${{ matrix.cpp-version }}
     - name: Setup
       run: |

.github/workflows/icc.yml

@@ -24,7 +24,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install ipython nbval pytest-xdist cython wheel
+        pip install -r pythran/tests/requirements.txt
+        pip install pytest-xdist
         if test ${{ matrix.python-version }} != '3.10' ; then pip install scipy ; fi
         wget -O- https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB | gpg --dearmor | sudo tee /usr/share/keyrings/oneapi-archive-keyring.gpg
         echo "deb [signed-by=/usr/share/keyrings/oneapi-archive-keyring.gpg] https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list

.github/workflows/parallel.yml

@@ -24,7 +24,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install ipython nbval pytest-xdist cython scipy wheel
+        pip install -r pythran/tests/requirements.txt scipy
+        pip install pytest-xdist
         sudo apt install libopenblas-dev ${{ matrix.cpp-version }}
     - name: Setup
       run: |

.github/workflows/windows.yml

@@ -28,7 +28,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install scipy wheel pythran-openblas pytest
+        pip install -r pythran/tests/requirements.txt scipy
+        pip install pythran-openblas pytest
     - name: Setup
       run: |
         python setup.py install

docs/DEVGUIDE.rst

@@ -68,8 +68,12 @@ Validation
 ----------
 
 ``pythran`` uses the ``unittest`` module and the `pytest
-<http://pytest.org/latest/>`_ package to manage test cases. The whole
-validation suite is run through the command::
+<http://pytest.org/latest/>`_ package to manage test cases.
+
+All requirementsa r elisted in ``pythran/tests/requirements.txt``.
+
+
+The whole validation suite is run through the command::
 
     $> python -m pytest pythran/tests
 

pythran/tests/requirements.txt

@@ -0,0 +1,4 @@
+ipython
+nbval
+cython
+wheel