Add tests.yml

.github/workflows/tests.yml

@@ -0,0 +1,16 @@
+on:
+  push:
+    branches: [ main ]
+name: Tests
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.20.x
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Test
+      run: go test -v ./b2_test