created initial test infrastructure, added pre-commit hooks

.github/workflows/validate.yml

@@ -12,6 +12,25 @@ on:
       - "main"
 
 jobs:
+  test:
+    name: "Run automated tests"
+    runs-on: "ubuntu-latest"
+    steps:
+        - name: "Checkout the repository"
+          uses: "actions/[email protected]"
+
+        - name: "Set up Python"
+          uses: actions/[email protected]
+          with:
+            python-version: "3.12"
+            cache: "pip"
+
+        - name: "Install test requirements"
+          run: python3 -m pip install -r requirements.test.txt
+
+        - name: "Run pytest"
+          run: python3 -m pytest
+
   hassfest: # https://developers.home-assistant.io/blog/2020/04/16/hassfest
     name: "Hassfest Validation"
     runs-on: "ubuntu-latest"
@@ -32,6 +51,4 @@ jobs:
         - name: "Run HACS validation"
           uses: "hacs/action@main"
           with:
-            category: "integration"
-            # Remove this 'ignore' key when you have added brand images for your integration to https://github.com/home-assistant/brands
-            ignore: "brands"
+            category: "integration"

.pre-commit-config.yaml

@@ -0,0 +1,58 @@
+repos:
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.19.1
+    hooks:
+      - id: pyupgrade
+        args: [--py37-plus]
+  - repo: https://github.com/psf/black
+    rev: 24.10.0
+    hooks:
+      - id: black
+        args:
+          - --safe
+          - --quiet
+        files: ^((homeassistant|script|tests)/.+)?[^/]+\.py$
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.3.0
+    hooks:
+      - id: codespell
+        args:
+          - --ignore-words-list=hass,alot,datas,dof,dur,farenheit,hist,iff,ines,ist,lightsensor,mut,nd,pres,referer,ser,serie,te,technik,ue,uint,visability,wan,wanna,withing
+          - --skip="./.*,*.csv,*.json"
+          - --quiet-level=2
+        exclude_types: [csv, json]
+  - repo: https://github.com/pycqa/flake8
+    rev: 7.1.1
+    hooks:
+      - id: flake8
+        additional_dependencies:
+          - flake8-docstrings==1.7.0
+          - pydocstyle==6.3.0
+        files: ^(homeassistant|script|tests)/.+\.py$
+  - repo: https://github.com/PyCQA/bandit
+    rev: 1.8.0
+    hooks:
+      - id: bandit
+        args:
+          - --quiet
+          - --format=custom
+          - --configfile=tests/bandit.yaml
+        files: ^(homeassistant|script|tests)/.+\.py$
+  - repo: https://github.com/pre-commit/mirrors-isort
+    rev: v5.10.1
+    hooks:
+      - id: isort
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: check-executables-have-shebangs
+        stages: [manual]
+      - id: check-json
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.13.0
+    hooks:
+      - id: mypy
+        args:
+          - --pretty
+          - --show-error-codes
+          - --show-error-context

requirements.test.txt

@@ -0,0 +1 @@
+pytest-homeassistant-custom-component

requirements.txt

@@ -2,4 +2,4 @@ colorlog==6.9.0
 homeassistant==2024.10.3
 pip>=21.3.1
 ruff==0.8.1
-pymodbus==3.7.4
+pymodbus==3.7.4