Run black an isort with option that makes them fail on incorrect form…

…atting

Internal-tag: [#50994]
Signed-off-by: Krzysztof Obłonczek <koblonczek@internships.antmicro.com>

.ci.yml

@@ -13,7 +13,7 @@ lint:
     - python3 -m pip install -U pip wheel setuptools
   script:
     - python3 -m pip install -r requirements.dev.txt
-    - nox -s isort black flake8
+    - nox -s isort_check black_check flake8
 
 pytest:
   stage: test

noxfile.py

@@ -18,6 +18,13 @@ def isort(session: nox.Session) -> None:
     session.run("isort", ".")
 
 
+@nox.session()
+def isort_check(session: nox.Session) -> None:
+    """Options are defined in pyproject.toml file"""
+    session.install("isort")
+    session.run("isort", "--check", ".")
+
+
 @nox.session
 def flake8(session):
     """Options are defined in .flake8 file."""
@@ -32,6 +39,13 @@ def black(session):
     session.run("black", ".")
 
 
+@nox.session
+def black_check(session):
+    """Options are defined in pyproject.toml file"""
+    session.install("black")
+    session.run("black", "--check", ".")
+
+
 @nox.session
 def tests(session: nox.Session) -> None:
     session.install("-r", "requirements.txt")