Focus on postgresql only

.github/workflows/tests.yml

@@ -1,43 +1,57 @@
-name: tests
+name: Tests
+
 on:
-  pull_request:
   push:
-    branches:
-      - "master"
-  # schedule:
-  #   - cron: "00 00 */2 * *"
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
 
-permissions:
-  contents: read
+env:
+  CARGO_TERM_COLOR: always
 
 jobs:
   test:
-    name: test
     runs-on: ubuntu-latest
+
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
+      - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@master
+        uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: stable
 
-      - name: Build multi-query
-        run: cargo build --verbose --release
+      - name: Install PostgreSQL client (psql)
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y postgresql-client
 
-      - name: Run tests
-        run: cargo test --verbose
+      - name: Cache cargo registry
+        uses: actions/cache@v4
+        with:
+          path: ~/.cargo/registry
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
-  rustfmt:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-      - name: Install Rust
-        uses: dtolnay/rust-toolchain@master
+      - name: Cache cargo index
+        uses: actions/cache@v4
         with:
-          toolchain: stable
-          components: rustfmt
+          path: ~/.cargo/git
+          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo build
+        uses: actions/cache@v4
+        with:
+          path: target
+          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+
       - name: Check formatting
-        run: cargo fmt --all --check
+        run: cargo fmt -- --check
+
+      - name: Run clippy
+        run: cargo clippy -- -D warnings
+
+      - name: Run tests
+        run: cargo test --verbose -- --test-threads=4
+        env:
+          # testcontainers needs Docker socket
+          DOCKER_HOST: unix:///var/run/docker.sock