diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..f48706f
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,123 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    types:
+      - opened
+      - synchronize
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Dump GitHub context
+        env:
+          GITHUB_CONTEXT: ${{ toJson(github) }}
+        run: echo "$GITHUB_CONTEXT"
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+          # Issue ref: https://github.com/actions/setup-python/issues/436
+          # cache: "pip"
+          # cache-dependency-path: pyproject.toml
+      - uses: actions/cache@v3
+        id: cache
+        with:
+          path: ${{ env.pythonLocation }}
+          key: ${{ runner.os }}-python-${{ env.pythonLocation }}-${{ hashFiles('pyproject.toml', 'requirements-tests.txt') }}-test-v01
+      - name: Install Dependencies
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: pip install -r requirements-tests.txt
+      - name: Lint
+        run: bash scripts/lint.sh
+
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
+      fail-fast: false
+    steps:
+      - name: Dump GitHub context
+        env:
+          GITHUB_CONTEXT: ${{ toJson(github) }}
+        run: echo "$GITHUB_CONTEXT"
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+          # Issue ref: https://github.com/actions/setup-python/issues/436
+          # cache: "pip"
+          # cache-dependency-path: pyproject.toml
+      - uses: actions/cache@v3
+        id: cache
+        with:
+          path: ${{ env.pythonLocation }}
+          key: ${{ runner.os }}-python-${{ env.pythonLocation }}-${{ hashFiles('pyproject.toml', 'requirements-tests.txt') }}-test-v05
+      - name: Install Dependencies
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: pip install -r requirements-tests.txt
+      - run: mkdir coverage
+      - name: Test
+        run: bash scripts/test.sh
+        env:
+          COVERAGE_FILE: coverage/.coverage.${{ runner.os }}-py${{ matrix.python-version }}
+          CONTEXT: ${{ runner.os }}-py${{ matrix.python-version }}
+      - name: Store coverage files
+        uses: actions/upload-artifact@v3
+        with:
+          name: coverage
+          path: coverage
+
+  coverage-combine:
+    needs: [test]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Dump GitHub context
+        env:
+          GITHUB_CONTEXT: ${{ toJson(github) }}
+        run: echo "$GITHUB_CONTEXT"
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.8'
+          # Issue ref: https://github.com/actions/setup-python/issues/436
+          # cache: "pip"
+          # cache-dependency-path: pyproject.toml
+      - name: Get coverage files
+        uses: actions/download-artifact@v3
+        with:
+          name: coverage
+          path: coverage
+      - run: pip install coverage[toml]
+      - run: ls -la coverage
+      - run: coverage combine coverage
+      - run: coverage report
+      - run: coverage html --show-contexts --title "Coverage for ${{ github.sha }}"
+      - name: Store coverage HTML
+        uses: actions/upload-artifact@v3
+        with:
+          name: coverage-html
+          path: htmlcov
+
+  # https://github.com/marketplace/actions/alls-green#why
+  check:  # This job does nothing and is only used for the branch protection
+    if: always()
+    needs:
+      - coverage-combine
+    runs-on: ubuntu-latest
+    steps:
+      - name: Dump GitHub context
+        env:
+          GITHUB_CONTEXT: ${{ toJson(github) }}
+        run: echo "$GITHUB_CONTEXT"
+      - name: Decide whether the needed jobs succeeded or failed
+        uses: re-actors/alls-green@release/v1
+        with:
+          jobs: ${{ toJSON(needs) }}
diff --git a/requirements-tests.txt b/requirements-tests.txt
new file mode 100644
index 0000000..48af9cf
--- /dev/null
+++ b/requirements-tests.txt
@@ -0,0 +1,6 @@
+-e .
+pytest >=7.1.3,<8.0.0
+coverage[toml] >= 6.5.0,< 8.0
+mypy ==1.4.1
+ruff ==0.0.275
+black == 23.3.0
diff --git a/scripts/lint.sh b/scripts/lint.sh
new file mode 100755
index 0000000..220afd8
--- /dev/null
+++ b/scripts/lint.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+set -e
+set -x
+
+mypy event_flow
+ruff event_flow tests scripts
+black event_flow tests --check
diff --git a/scripts/test.sh b/scripts/test.sh
new file mode 100755
index 0000000..109425d
--- /dev/null
+++ b/scripts/test.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -e
+set -x
+
+coverage run -m pytest tests ${@}