Add CI tests

Signed-off-by: panic <[email protected]>

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+---
+name: Tests
+
+on:
+  pull_request:
+    types: ['opened', 'reopened', 'synchronize']
+
+jobs:
+  go-test:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: go.mod
+      - name: Run tests
+        run: go test ./...