Adds test workflow

.github/workflows/tests.yml

@@ -0,0 +1,54 @@
+name: Tests
+
+on: [push, pull_request]
+
+env:
+  RUSTFLAGS: -Dwarnings
+
+jobs:
+  build_and_test:
+    name: Build and test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        rust: [stable]
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Install ${{ matrix.rust }}
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: ${{ matrix.rust }}
+        override: true
+
+    - uses: Swatinem/rust-cache@v2
+
+    - name: tests
+      uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --all
+
+  check_fmt_and_docs:
+    name: Checking fmt and docs
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        components: rustfmt, clippy
+        override: true
+
+    - uses: Swatinem/rust-cache@v2
+
+    - name: fmt
+      run: cargo fmt --all -- --check
+
+    - name: Clippy
+      run: cargo clippy --all
+
+    - name: Docs
+      run: cargo doc --no-deps