Add github workflow.

.github/workflows/build-test-fmt.yml

@@ -0,0 +1,37 @@
+name: Build-Test-Fmt
+
+on:
+  [push]
+
+jobs:
+  build-test-fmt:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - run: rustup show
+
+    - uses: Swatinem/rust-cache@v2
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: 18
+        cache: "yarn"
+
+    - name: Install dependencies
+      run: yarn install --frozen-lockfile
+
+    - name: Install Foundry
+      uses: foundry-rs/foundry-toolchain@v1
+
+    - name: Run tests
+      working-directory: packages/contracts
+      run: forge build
+
+    - name: Build
+      run: cargo build
+
+    - name: Test
+      run: cargo test

.github/workflows/unit-tests.yml

@@ -0,0 +1,60 @@
+name: unit-tests
+
+on: [push]
+
+jobs:
+  circuits:
+    name: circuits
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+
+      - name: Setup Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          components: rustfmt, clippy
+
+      - name: Download circom (Linux)
+        run: git clone https://github.com/iden3/circom.git && cd circom && cargo build --release && cargo install --path circom
+
+      - name: Print circom version
+        run: circom --version
+
+      - name: Install yarn
+        run: npm install -g yarn
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Run tests
+        working-directory: packages/circuits
+        run: yarn test --runInBand --no-cache
+
+  contracts:
+    name: contracts
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: 18
+          cache: "yarn"
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+
+      - name: Run tests
+        working-directory: packages/contracts
+        run: forge test --no-match-test "testIntegration"