[#65] TEST workflow 추가

.github/workflows/pr_test.yml

@@ -0,0 +1,32 @@
+name: Cargo Build & Test
+
+on:
+  pull_request:
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build_and_test:
+    name: Rust project - latest
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        toolchain:
+          - stable
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.toml') }}
+
+      - run: rustup update ${{ matrix.toolchain }} && rustup default ${{ matrix.toolchain }}
+
+      - run: cargo build --verbose
+      - run: cargo test --verbose