diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 35d3610..17491c0 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -36,4 +36,6 @@ jobs:
           pip install -r requirements-dev.txt
 
       - name: Running ruff
-        run: ruff check vsscale
+        run: |
+          ruff check vsscale
+          ruff check tests
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..ec72bad
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,28 @@
+name: test
+
+on: [push, pull_request]
+
+jobs:
+  windows:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        versions:
+          - 68
+        python-version:
+          - '3.12'
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python3 -m pip install --upgrade pip
+          pip install vapoursynth-portable==${{ matrix.versions }}
+          pip install -r requirements.txt
+          pip install -r requirements-dev.txt
+      - name: Running tests
+        run: pytest --cov-report=term-missing:skip-covered --cov=vstools tests
diff --git a/.gitignore b/.gitignore
index 065ce53..2468aff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -128,8 +128,9 @@ dmypy.json
 # Local test file
 *test*.py
 
-# vscode folder
+# Editor local configs
 .vscode
+.idea
 
 # vsjet folder
 .vsjet/
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..a635c5c
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,2 @@
+[pytest]
+pythonpath = .
diff --git a/requirements-dev.txt b/requirements-dev.txt
index a2f94d9..20e28d7 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,5 @@
 packaging>=24.0
 pycodestyle>=2.11.1
+pytest>=7.3.1
+pytest-cov>=5.0.0
 ruff>=0.6.5