Add CI

.github/workflows/tests.yml

@@ -0,0 +1,53 @@
+name: CI
+on:
+  push:
+    branches:
+      - main 
+  pull_request:
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: "1.70.0"
+
+      - name: version info
+        run: rustc --version; cargo --version;
+
+      - name: Run all tests
+        run: cargo test --features=macro
+
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: "1.70.0"
+
+      - run: |
+          rustup component add rustfmt
+          cargo fmt --all -- --check
+
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@master
+
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: "1.70.0"
+
+      - run: |
+          rustup component add clippy
+          cargo clippy --features=macro -- -D warnings
+
+